How Stress, Burnout and Labor Shortages Affect Anesthesia Care

By Pat Anson, PNN Editor

Growing demand for surgical procedures to treat chronic pain and other medical conditions is contributing to shortages of anesthesia care providers, according to an op/ed in Anesthesiology, the journal of the American Society of Anesthesiologists.

"The labor supply-demand imbalance for anesthesia clinicians has reached critical levels, with major implications for safe and effective patient care," says lead author Amr Abouleish, MD, an anesthesiologist and professor at the University of Texas Medical Branch, Galveston.

Many outpatient and elective surgical procedures that were postponed during the Covid-19 pandemic have been rescheduled, leading to a surge in demand that has exacerbated shortages of anesthesia staff. Before the pandemic, about 35% of hospitals and surgical centers reported an anesthesia staffing shortage. Two years after the pandemic, the staffing shortage doubled to 78%.

“But these shortages aren't unique to just anesthesia,” Abouleish told PNN. “We're short nurses, technicians, pharmacists, even aides. And we see that in all our facilities now nationwide.”

Tired of the stress, burnout and workload demands, some providers left healthcare to pursue other professions or retired early. That has contributed to a “dangerous spiral” that has compromised healthcare access and the quality of care. Instead of using general or full anesthesia in an operating room, many outpatient procedures are now performed using partial anesthesia or a local anesthetic, which are cheaper and require less staff.

Abouleish, who specializes in pediatric care, says the staffing shortages haven’t affected patient safety in his practice. But he often finds himself working with someone on a surgery team for the first time.

“The first time we meet the nurse anesthetists is literally the day I’m working with them,” he explained. “When I work with somebody I've worked with for 10 years, we have a rapport. We've developed trust and we understand each other's limits. And that's clearly more effective, better for the team, and better for patients. As long as there is a constant change in staff, I think that's worrisome for patient safety. The surgeons will tell you the same thing.”

Abouleish says the opioid crisis has led to a more multimodal approach to treating chronic pain, which has resulted in more fusions, nerve blocks, spinal injections and other procedures that require some level of anesthesia.

“It's gone from what I saw maybe 10 years ago, before the opioid crisis, where you had physicians or clinics where the only pain management was to hand out opioids. Now it's a multimodal, multidisciplinary approach,” he said.

“There are some patients who do well with a low dose opioid, there's no question about that. But it's also important to have that multi-disciplinary approach to chronic pain. The goal oftentimes is not to take the pain away, it's just to make your everyday life more livable.”

The Center for Anesthesia Workforce Studies estimates that nearly 4,800 anesthesia professionals in the U.S. left the workforce in 2022. The following year, about 5,200 anesthesia professionals entered the workforce from training programs. Although the anesthesia workforce is growing, it’s not growing fast enough to keep pace with demand or attrition. About 57% of anesthesiologists are 55 or older and nearing retirement.

To ease workforce shortages, Abouleish and his co-authors say the number of anesthesiologist residency positions should be increased. Steps should also be taken to improve staff retention by addressing burnout and other workplace issues through more flexible scheduling and part-time work. They also say Medicare payments for anesthesiology services need to increase to keep pace with inflation and higher healthcare costs. 

How Anesthesia Drugs Work in the Brain

By Dr. Adam Hines   

Over 350 million surgeries are performed globally each year. For most of us, it’s likely at some point in our lives we’ll have to undergo a procedure that needs general anaesthesia.

Even though it is one of the safest medical practices, we still don’t have a complete, thorough understanding of precisely how anaesthetic drugs work in the brain. In fact, it has largely remained a mystery since general anaesthesia was introduced into medicine over 180 years ago.

Our study published in The Journal of Neuroscience provides new clues on the intricacies of the process. General anaesthetic drugs seem to only affect specific parts of the brain responsible for keeping us alert and awake.

In a study using fruit flies, we found a potential way that allows anaesthetic drugs to interact with specific types of neurons (brain cells), and it’s all to do with proteins. Your brain has around 86 billion neurons and not all of them are the same – it’s these differences that allow general anaesthesia to be effective.

To be clear, we’re not completely in the dark on how anaesthetic drugs affect us. We know why general anaesthetics are able to make us lose consciousness so quickly, thanks to a landmark discovery made in 1994.

But to better understand the fine details, we first have to look to the minute differences between the cells in our brains. Broadly speaking, there are two main categories of neurons in the brain.

The first are what we call “excitatory” neurons, generally responsible for keeping us alert and awake. The second are “inhibitory” neurons – their job is to regulate and control the excitatory ones.

In our day-to-day lives, excitatory and inhibitory neurons are constantly working and balancing one another.

When we fall asleep, there are inhibitory neurons in the brain that “silence” the excitatory ones keeping us awake. This happens gradually over time, which is why you may feel progressively more tired through the day.

General anaesthetics speed up this process by directly silencing these excitatory neurons without any action from the inhibitory ones. This is why your anaesthetist will tell you that they’ll “put you to sleep” for the procedure: it’s essentially the same process.

A Different Kind of Sleep

While we know why anaesthetics put us to sleep, the question then becomes: “Why do we stay asleep during surgery?” If you went to bed tonight, fell asleep and somebody tried to do surgery on you, you’d wake up with quite a shock.

To date, there is no strong consensus in the field as to why general anaesthesia causes people to remain unconscious during surgery.

Over the last couple of decades, researchers have proposed several potential explanations, but they all seem to point to one root cause. Neurons stop talking to each other when exposed to general anaesthetics.

While the idea of “cells talking to each other” may sound a little strange, it’s a fundamental concept in neuroscience. Without this communication, our brains wouldn’t be able to function at all. And it allows the brain to know what’s happening throughout the body.

Our new study shows that general anaesthetics appear to stop excitatory neurons from communicating, but not inhibitory ones. This concept isn’t new, but we found some compelling evidence as to why only excitatory neurons are affected.

For neurons to communicate, proteins have to get involved. One of the jobs these proteins have is to get neurons to release molecules called neurotransmitters. These chemical messengers are what gets signals across from one neuron to another: dopamine, adrenaline and serotonin are all neurotransmitters, for example.

We found that general anaesthetics impair the ability of these proteins to release neurotransmitters, but only in excitatory neurons. To test this, we used Drosophila melanogaster fruit flies and super resolution microscopy to directly see what effects a general anaesthetic was having on these proteins at a molecular scale.

Part of what makes excitatory and inhibitory neurons different from each other is that they express different types of the same protein. This is kind of like having two cars of the same make and model, but one is green and has a sports package, while the other is just standard and red. They both do the same thing, but one’s just a little bit different.

Neurotransmitter release is a complex process involving lots of different proteins. If one piece of the puzzle isn’t exactly right, then general anaesthetics won’t be able to do their job.

As a next research step, we will need to figure out which piece of the puzzle is different, to understand why general anaesthetics only stop excitatory communication.

Ultimately, our results hint that the drugs used in general anaesthetics cause massive global inhibition in the brain. By silencing excitability in two ways, these drugs put us to sleep and keep it that way.

Adam Hines, PhD, is a Research Fellow at Queensland Brain Institute at The University of Queensland in Australia. His research focuses on combining neuroscience and artificial intelligence to develop “bio-inspired robotics.”

This article originally appeared in The Conversation and is republished with permission.

Drug Shortages Mostly Involve Low-Cost Generics

By Pat Anson, PNN Editor

Drug shortages in the United States are primarily being driven by low profit margins – not supply chain problems – according to a new analysis that found 84% of medicines currently in shortage are low-cost generics. Prices for some generic medicines are so low that manufacturers have stopped making the drugs.

The study by the IQVIA Institute, a healthcare data tracking firm, identified 132 medications in shortage as of June 2023, with pain/anesthesia drugs as the therapy area with the greatest number (21) of shortages. The shortages are so acute that elective procedures requiring anesthesia are being cancelled or postponed.

“Anesthesia medicines, including general, local, and muscle relaxants, are foundational to inpatient and outpatient surgical procedures, and shortages in these medicines can result in delays for patients receiving procedures and hospitals making prioritization decisions based on available supply,” the IQVIA said.

“Shortages across these medicines complicate scheduling of a wide range of procedures and surgeries, which may be part of a broad-based reduction observed in elective procedures in post-pandemic periods.”

One weakness of the IQVIA report is that it relies solely on drug shortage data from the Food and Drug Administration.  The American Society of Health-System Pharmacists (ASHP) currently lists 242 medicines in short supply, nearly twice the number listed by the FDA.

Three generic opioid medications commonly taken for pain, immediate-release oxycodone, oxycodone-acetaminophen, and hydrocodone-acetaminophen tablets have been on the ASHP shortage list for months, but have yet to appear on the FDA’s shortage list.  

Pain patients are feeling the impact of short supplies. In recent months, many have complained about problems or delays getting their opioid prescriptions filled at U.S. pharmacies.

“It has been a month since I had my last refill and no pharmacy can give me an answer as to when they may be back in stock. In the meantime, I just live in misery,” one patient told us.

“Mobile, Alabama seems to be almost completely out of pain medication, specifically the most widely used mg of oxycodone-acetaminophen and hydrocodone. I was supposed to get my refill from Walgreens… and they are not only out but cannot order more,” another patient said. “This is such a serious issue with a lot of people probably going through withdrawals in our county and nobody seems to care.”

‘Prices May Be Too Low’

Teva Pharmaceuticals, a large generic drug maker, has informed the FDA that it is discontinuing production of immediate-release oxycodone tablets. The move appears to be in line with Teva's announcement that it would reduce its production of generics from 80% of its drug portfolio to 60% over the next few years.  

“The drugs we’re pulling out of are drugs which are low-margin,” Teva CEO Richard Francis recently told Bloomberg.

The IQVIA found that over half (56%) the medicines in short supply are low-cost generics priced at less than $1 per unit. In many cases, that’s below the manufacturer’s cost of production and distribution. Because the generic drug industry is highly concentrated with few suppliers, any disruption or discontinuation of a generic can have an outsized impact.

“Generic medicines are much lower cost than brands and some observers have begun to suggest that some generic prices may be too low to support sustainable markets,” IQVIA found. “Prices driven below the cost of manufacturing and distributing can result in some competitors discontinuing production of molecules (medicines), reducing necessary maintenance activities and generally contributing to less resilience in manufacturing supply of those medicines.”

Other highlights of the IQVIA report:

• 120 of the 132 drug shortages listed by FDA involve generics. Only 12 drugs are brand name

• 75% of current drug shortages have been active for over a year and 58% have lasted at least two years

• Three times as many new drug shortages have been reported than have been resolved in recent years

• 67% of shortages involve injectable drugs

• Shortages of antibacterial medication “are a significant concern affecting multiple aspects of healthcare delivery”

• Shortages of cancer treatment drugs have forced some oncology providers to suspend or delay treatments

Federal agencies appear to have inadvertently contributed to some of the shortages. The IQVIA said FDA inspections of drug manufacturing plants have triggered shutdowns of some sites due to safety or sanitation issues. Those shortages “are difficult for their peers to resolve,” according to IQVIA, because few other companies can pick up the slack.

A generic manufacturer of oxycodone, hydrocodone and ADHD medication recently sued the DEA after the agency suspended its drug production license over record-keeping issues. The lawsuit by Ascent Pharmaceuticals accused the DEA of incompetence and heavy-handed regulation of the nation’s drug supply.

In the past year, under the DEA’s ironically named “Operation Bottleneck” initiative, the agency has taken administrative actions against 143 DEA-registered doctors, pharmacies, drug makers and drug distributors, largely over allegations of poor record-keeping and inadequate controls to prevent the diversion and theft of opioids and other controlled substances.

“These companies have a legal obligation to account for every dose and every pill to protect the safety and health of the American people,” said DEA Administrator Anne Milgram. “DEA will continue using every available tool to prevent the diversion and misuse of opioids and other highly addictive controlled substances.”

DEA recently announced plans to further reduce the supply of opioid pain medication in 2024 -- which would be the eighth consecutive year the agency has reduced opioid production quotas for drug manufacturers. DEA said it was acting on the advice of the FDA, which estimates that medical need for Schedule II opioids will decline on average 7.9 percent from 2023 levels.

Guideline Recommends Surgery Patients Be Screened for Cannabis Use

By Pat Anson, PNN Editor

New medical guidelines recommend that all patients undergoing anesthesia should be screened for cannabis use before surgery, and that procedures should be delayed if patients are thought to be under the influence or impaired.

The guideline by the American Society of Regional Anesthesia and Pain Medicine (ASRA Pain Medicine) is intended for anesthesiologists. It was developed by a panel of experts that included anesthesiologists, pain specialists and a patient advocate to deal with the growing number of people using either recreational or medical marijuana. An estimated 10% of Americans use cannabis monthly.

“Before surgery, anesthesiologists should ask patients if they use cannabis – whether medicinally or recreationally – and be prepared to possibly change the anesthesia plan or delay the procedure in certain situations,” Samer Narouze, MD, ASRA Pain Medicine president, said in a statement.

“They also need to counsel patients about the possible risks and effects of cannabis. For example, even though some people use cannabis therapeutically to help relieve pain, studies have shown regular users may have more pain and nausea after surgery, not less, and may need more medications, including opioids, to manage the discomfort. We hope the guidelines will serve as roadmap to help better care for patients who use cannabis and need surgery.”

The guideline recommends that patients be asked about their cannabis use before surgery, including whether it was smoked or ingested, the amount used, how recently it was used, and the frequency of use. It does not endorse drug testing of patients, meaning patients would have to be taken at their word.

If a patient admits recently smoking cannabis, the guideline recommends that non-emergency, elective procedures be postponed for a minimum of two hours because of the increased risk of a heart attack before, during and after surgery.

“In my opinion, these guidelines appear to be overly cautious at best and discriminatory at worst,” said Paul Armentano, Deputy Director of NORML, a marijuana advocacy group. “The relationship between cannabis and opioids is well-established, with nearly 100 papers in the literature showing that pain patients typically reduce or eliminate their intake of opioids over time following cannabis use.” 

Armentano cited a recent pilot study that found people who use cannabis respond no differently to local anesthesia than those who do not. Local anesthesia is different from general anesthesia because patients remain conscious during a procedure such as dental work. 

The evidence on cannabis and general anesthesia is rather thin, and because of that the ASRA guideline gives low grades to several of its recommendations, including the one about delaying surgery.  No recommendations are made about tapering cannabis use before or after surgery, or whether to prescribe opioids to patients who use cannabinoids due to “current lack of evidence.” Anesthesiologists are instead urged to use their own clinical judgement.   

In 2020, the Perioperative Pain and Addiction Interdisciplinary Network (PAIN) released more restrictive guidelines about cannabis use, recommending that heavy cannabis use be tapered or stopped before surgery.

Virtual Reality Therapy Reduces Drug Use During Surgery

By Madora Pennington, PNN Columnist

Imagine going in for minor surgery, one where you don’t need to be totally unconscious, and being given a virtual reality headset for pain and anxiety relief instead of the usual dose of anesthesia.

The virtual reality (VR) device would distract you during surgery by immersing you in a nature scene, like a forest, mountain top or nighttime sky. And a guide meditation would reassure you with, “Surgery is going great! Try to stay still!”

Would this even work?

A small study led by researchers at the University of Colorado sought to find out by looking at 34 patients receiving hand surgery that could be done without general anesthesia. While virtual reality has been widely studied as a treatment for acute and chronic pain, researchers are just beginning to explore whether it can be used during surgery.

“In the field of anesthesia, we are constantly focused on improving patient safety and care quality,” said lead author Adeel Faruki, MD, an anesthesiologist at the University of Colorado Hospital. “There are many studies currently underway assessing if VR can be used for orthopedic joint surgeries.”

Faruki and his colleagues divided the patients into two groups. Half received the usual care and served as a control group, while the other half wore VR headsets and noise-cancelling headphones during surgery to promote relaxation and calmness. Both groups received local anesthesia and the sedative propofol, either upon patient request or at the discretion of an anesthesiologist.

Researchers found that patients in the VR group received significantly less propofol than those in the control group. Only four of the 17 patients in the VR group received any propofol during their surgery, while every patient in the control group received the sedative.

PLOS ONE

Not surprisingly, the VR patients tended to need more supplemental local anesthesia. Propofol can amplify the effectiveness of pain medication, so patients on propofol generally require less numbing and pain relief.

Patients in both groups reported their pain was well-controlled and they felt relaxed during surgery. There were no significant differences in their pain scores or surgery outcomes. In short, the VR group did just as well with the pleasant distraction of the device as those receiving more sedating medication.

There are advantages to using less propofol. The drug is commonly used as sedative during surgery, but poses risks because it tends to depress breathing, which is dangerous. “Acute propofol intoxication" was cited as the cause of pop star Michael Jackson’s overdose death in 2009.

Propofol is also hard on the brain and may cause lower cognition after surgery.  Being less drugged, patients who received VR were discharged from the postoperative recovery room an average of 22 minutes earlier than fully medicated patients. Getting patients released early frees hospital staff and resources for other patients and needs.

Some limitations the authors of the study acknowledge are that patients signing up for VR might be more likely to do well with less anesthesia if they volunteered for it. Neither the patients nor the healthcare providers were “blinded” in this study, meaning everyone knew which patients were getting VR and which ones weren’t. This scenario opens the possibility that providers participating in the study might inadvertently influence the results by giving the VR patients less propofol.

The bottom line for this study, which is being published in PLOS ONE, is that patients can have just as comfortable a surgery with less sedation when VR is used. The study does not prove that VR is better, just that it does as well as sedative medication.

Madora Pennington is the author of the blog LessFlexible.com about her life with Ehlers-Danlos Syndrome. Madora has tried virtual reality therapy and found it useful in reducing both pain and anxiety.  

My Botched Anesthesia During Surgery

By Victoria Reed, PNN Columnist

Have you ever had elective surgery that didn’t go as planned, but instead caused more pain? Did it make you think twice about having surgery again?

Having a chronic illness means that some surgeries are necessary to improve quality of life. People suffering from rheumatoid arthritis (RA) often end up having surgeries, as joint pain and deformity are common complications. Surgeries can include joint replacement or removal of rheumatoid nodules -- subcutaneous lumps or masses that can attach to underlying tissue.

Nodules are associated with more severe forms of RA and usually occur near elbow joints or joints of the hands and feet. About 20% of RA patients suffer from these nodules, which usually aren’t painful, but can cause complications.

I am one of the 20% of RA patients who has developed these nodules. Years ago, I had one growing on the underside of my right big toe. It grew so large that it was causing pain, and I was having trouble walking on that foot. I was compensating for the discomfort by using just the outside of my foot, so I consulted with a podiatrist to talk about having the nodule removed.

The doctor advised me that it could be surgically removed, but also that it could possibly grow back over time. Considering that it was affecting my ability to walk comfortably, I decided to go ahead with the surgery.

For some reason, the doctor did not want to use general anesthesia during the surgery and opted for local injections of an anesthetic to numb the toe.  This did not go well for me. As the surgical assistant injected the medication, he must have hit a nerve because it caused some of the most excruciating pain of my life! It was more painful than childbirth. As I screamed in pain, he injected the toe THREE more times, each one being equally painful.

Needless to say, that was a very traumatic experience, but the toe was indeed numb enough to cut into. After the nodule was removed, which was described in the pathology report as a “wad of gum” type of mass, I was sent home to recover, hopeful that the toe would be as good as new.

It wasn’t.

As the anesthetic wore off, I realized that I had no feeling in the toe. I called the office and inquired as to why I still had no feeling in it and was told to give it time. They assured me that the sensation would eventually return. A week passed, then another week, and still there was no feeling in parts of the toe. Other parts had a new and strangely painful tingling sensation. I called the office again and was told to allow more time for full sensation to return.

Nine years have passed and there has been no improvement. I suffer from sharp, stabbing nerve pain in that toe, which is still completely numb in certain spots. Unfortunately, the nodule has grown back as well. I’m not sure if the injections caused the nerve damage or if the actual removal of the nodule did, but had I received general anesthesia, I would not have had to suffer through those excruciatingly painful injections.

Because of that horrible experience, I am now very reluctant to consider elective surgery again.

We, as chronic pain sufferers, must always advocate for ourselves. Or have someone advocate for us, if we are unable. We should question the decisions made by our medical providers if they don’t seem right or if we are unsure or nervous about a procedure. While there are many competent doctors and surgeons, unfortunately, there are some that are not and who don’t always have our best interest in mind.

I never could have predicted the horrible outcome of that surgery. But the lesson I’ve learned is to ask as many questions as possible prior to any procedure and to thoroughly research any physician who is going to cut into my body. One good question to ask is, “How many of these surgeries have you performed?” Newer surgeons can be perfectly capable, but the more experienced a surgeon is, the better the outcome will likely be for you.

RA can present many challenges, mainly severe pain, but it can also affect a patient’s mobility and morbidity. I will need to decide if I want to have another surgery to remove the recurrent toe nodule or decide if it is something I can learn to live with. Either way, I have learned some valuable lessons.

Victoria Reed lives in Cleveland, Ohio. She suffers from endometriosis, fibromyalgia, degenerative disc disease and rheumatoid arthritis. 

General Anesthesia as Safe as Spinal Injections for Hip Fracture Surgery

By Pat Anson, PNN Editor

General anesthesia is just as safe as spinal anesthesia for patients undergoing hip fracture surgery, according to a large new study that dispels a common belief that patients who receive spinal injections have better outcomes.

Researchers from the Perelman School of Medicine at the University of Pennsylvania enrolled 1,600 mostly elderly patients having hip fracture surgery at 46 U.S. and Canadian hospitals, and randomly assigned them to receive either spinal or general anesthesia.

They found that rates of survival, delirium and functional recovery post-surgery were similar for patients, regardless of the type of anesthesia they received. The findings are published in The New England Journal of Medicine.

“Our study argues that, in many cases, either form of anesthesia appears to be safe," said lead investigator Mark D. Neuman, MD, an associate professor of Anesthesiology and Critical Care at Perelman. "This is important because it suggests that choices can be guided by patient preference rather than anticipated differences in outcomes in many cases."

During general anesthesia, inhaled and intravenous medications are used to make patients unconscious, which often requires a breathing tube during surgery. For spinal anesthesia, medications are used to numb the lower part of the body through an injection into the spinal column. Patients anesthetized this way are typically able to breathe on their own during surgery and rarely require a breathing tube.

About 250,000 people have hip fracture surgery annually in the United States. In the past, most would receive general anesthesia, but in recent years the use of spinal anesthesia for hip fracture surgeries has increased significantly, due in part to the belief by some anesthesiologists that it was safer for frail, older patients.  

To get a better idea of possible outcomes associated with both forms form of anesthesia, researchers looked at post-surgical death rates, whether patients regained the ability to walk, and if they experienced any cognitive decline.

Statistically, there was hardly any difference in outcomes between the two groups. Sixty days after surgery, 18.5% of patients assigned to spinal anesthesia had either died or were unable to walk; versus 18 percent of patients who received general anesthesia. About 21 percent of patients assigned to spinal anesthesia experienced delirium, versus 20 percent of those given general anesthesia.

"What our study offers is reassurance that general anesthesia can represent a safe option for hip fracture surgery for many patients," said Neuman. "This is information that patients, families, and clinicians can use together to make the right choice for each patient's personalized care."

Neuman and his research team say previous comparisons of general and spinal anesthesia came from studies that didn’t randomly assign patients, which creates self-selection bias. Some patients may have chosen spinal anesthesia with the goal of avoiding complications, while others opted for general anesthesia to avoid a spinal injection or because they feared inadequate sedation during surgery.

The most common types of medications used during spinal injections are anesthetics, opioids or corticosteroids. A recent study of patients with hip osteoarthritis warned of serious long-term complications for those given steroid injections. Patients who received steroids were 8.5 times more likely to develop rapidly destructive hip disease, a condition that causes the loss of blood flow and death of bone tissue in the hip.

Marijuana Use May Affect Patient Anesthesia

By Kata Ruder, Kaiser Health News

When Colorado legalized marijuana, it became a pioneer in creating new policies to deal with the drug.

Now the state’s surgeons, nurses and anesthesiologists are becoming pioneers of a different sort in understanding what weed may do to patients who go under the knife.

Their observations and initial research show that marijuana use may affect patients’ responses to anesthesia on the operating table — and, depending on the patient’s history of using the drug, either help or hinder their symptoms afterward in the recovery room.

Colorado makes for an interesting laboratory. Since the state legalized marijuana for medicine in 2000 and allowed for its recreational sale in 2014, more Coloradans are using it — and they may also be more willing to tell their doctors about it.

Roughly 17% of Coloradans said they used marijuana in the previous 30 days in 2017, according to the National Survey on Drug Use and Health, more than double the 8% who reported doing so in 2006. By comparison, just 9% of U.S. residents said they used marijuana in 2017.

“It has been destigmatized here in Colorado,” said Dr. Andrew Monte, an associate professor of emergency medicine and medical toxicology at the University of Colorado School of Medicine and UCHealth. “We’re ahead of the game in terms of our ability to talk to patients about it. We’re also ahead of the game in identifying complications associated with use.”

One small study of Colorado patients published in May found marijuana users required more than triple the amount of one common sedation medicine, propofol, as did nonusers.

Those findings and anecdotal reports are prompting additional questions from the study’s author, Dr. Mark Twardowski, and others in the state’s medical field: If pot users indeed need more anesthesia, are there increased risks for breathing problems during minor procedures?

Are there higher costs with the use of more medication, if a second or third bottle of anesthesia must be routinely opened? And what does regular cannabis use mean for recovery post-surgery?

But much is still unknown about marijuana’s impact on patients because it remains illegal on the federal level, making studies difficult to fund or undertake.

It’s even difficult to quantify how many of the estimated 800,000 to 1 million anesthesia procedures that are performed in Colorado each year involve marijuana users, according to Dr. Joy Hawkins, a professor of anesthesiology at the University of Colorado School of Medicine and president of the Colorado Society of Anesthesiologists. The Colorado Hospital Association said it doesn’t track anesthesia needs or costs specific to marijuana users.

As more states legalize cannabis to varying degrees, discussions about the drug are happening elsewhere, too. On a national level, the American Association of Nurse Anesthetists recently updated its clinical guidelines to highlight potential risks for and needs of marijuana users. American Society of Anesthesiologists spokeswoman Theresa Hill said that the use of marijuana in managing pain is a topic under discussion but that more research is needed. This year, it endorsed a federal bill calling for fewer regulatory barriers on marijuana research.

Should Patients Disclose Marijuana Use? 

No matter where patients live, though, many nurses and doctors from around the country agree: Patients should disclose marijuana use before any surgery or procedure. Linda Stone, a certified registered nurse anesthetist in Raleigh, N.C., acknowledged that patients in states where marijuana is illegal might be more hesitant.

“We really don’t want patients to feel like there’s stigma. They really do need to divulge that information,” Stone said. “We are just trying to make sure that we provide the safest care.”

In Colorado, Hawkins said, anesthesiologists have noticed that patients who use marijuana are more tolerant of some common anesthesia drugs, such as propofol, which helps people fall asleep during general anesthesia or stay relaxed during conscious “twilight” sedation. But higher doses can increase potentially serious side effects such as low blood pressure and depressed heart function.

Limited airway flow is another issue for people who smoke marijuana. “It acts very much like cigarettes, so it makes your airway irritated,” she said.

To be sure, anesthesia must be adjusted to accommodate patients of all sorts, apart from cannabis use. Anesthesiologists are prepared to adapt and make procedures safe for all patients, Hawkins said. And in some emergency surgeries, patients might not be in a position to disclose their cannabis use ahead of time.

Even when they do, a big challenge for medical professionals is gauging the amounts of marijuana consumed, as the potency varies widely from one joint to the next or when ingested through marijuana edibles. And levels of THC, the chemical with psychoactive effects in marijuana, have been increasing in the past few decades.

“For marijuana, it’s a bit of the Wild West,” Hawkins said. “We just don’t know what’s in these products that they’re using.”

Marijuana’s Effects On Pain After Surgery

Colorado health providers are also observing how marijuana changes patients’ symptoms after they leave the operating suite — particularly relevant amid the ongoing opioid epidemic.

“We’ve been hearing reports about patients using cannabis, instead of opioids, to treat their postoperative pain,” said Dr. Mark Steven Wallace, chair of the pain medicine division in the anesthesiology department at the University of California-San Diego, in a state that also has legalized marijuana. “I have a lot of patients who say they prefer it.”

Matthew Sheahan, 25, of Denver, said he used marijuana to relieve pain after the removal of his wisdom teeth four years ago. After surgery, he smoked marijuana rather than using the ibuprofen prescribed but didn’t disclose this to his doctor because pot was illegal in Ohio, where he had the procedure. He said his doctor told him his swelling was greatly reduced. “I didn’t experience the pain that I thought I would,” Sheahan said.

In a study underway, Wallace is working with patients who’ve recently had surgery for joint replacement to see whether marijuana can be used to treat pain and reduce the need for opioids.

But this may be a Catch-22 for regular marijuana users. They reported feeling greater pain and consumed more opioids in the hospital after vehicle crash injuries compared with nonusers, according to a study published last year in the journal Patient Safety in Surgery.

“The hypothesis is that chronic marijuana users develop a tolerance to pain medications, and since they do not receive marijuana while in the hospital, they require a higher replacement dose of opioids,” said Dr. David Bar-Or, who directs trauma research at Swedish Medical Center in Englewood, Colo., and several other hospitals in Colorado, Texas, Missouri and Kansas. He is studying a synthetic form of THC called dronabinol as a potential substitute for opioids in the hospital.

Again, much more research is needed.

“We know very little about marijuana because we’ve not been allowed to study it in the way we study any other drug,” Hawkins said. “We’re all wishing we had a little more data to rely on.”

Kaiser Health News (KHN) is a national health policy news service. It is an editorially independent program of the Henry J. Kaiser Family Foundation which is not affiliated with Kaiser Permanente.

Memories, Medications and Hospital Horrors

By Tom Parker, Guest Columnist

Some things you never forget. Your mother’s love, your favorite teacher, your first home run (oh, that’s right, I’m 61 and that still hasn’t happened yet), your first date, your first kiss and your wedding.

Christmas to the Parker family is also memorable for many reasons. My delightful wife and I have always sought to make Christmas a precious time for our family. We listen to Christmas music off and on throughout the year, but nonstop in the fall and winter. Bing Crosby and Karen Carpenter mellifluously bless our home with the glorious sounds of Christmastime.

So why do I not remember a season of joy that just ended a month ago?

For several weeks, I had been experiencing pain and an inability to fully empty my bladder. I have quite a few health problems, so I just chalked this up as just another one and pretty much ignored it as it continued to get progressively worse.

My wife and son were on a long trip to take my youngest daughter back to college. I was home alone and finally felt the need to call my doctor about the urinary retention. My doctor’s sagacious nurse urged me to immediately go to the ER, so I called for an ambulance.

I was in St. Peter’s Hospital in Albany for almost a week while an interminable number of tests were conducted to determine what was wrong. I was not allowed any of my normal medications, pain or otherwise, or food or liquids while the initial tests were conducted. Nothing whatsoever passed my lips.

TOM PARKER

When my normal medication regimen finally resumed, I found out very quickly that I had to specifically request an oxycodone tablet when meds were dispensed or I wouldn’t get one.

Which leads me to very distinct memories of my roommate for the rest of my stay. A very brawny young man of 30 or so, a massively-muscled professional bodybuilder, was wheeled into the room and into the next bed. He was just out of elective bilateral double knee replacement surgery. Forgive me for listening as his mother and wife conversed waiting for him to come out of anesthesia.

PNN readers are all too acutely aware of how pain medications are no longer properly given for serious conditions -- which would seemingly include bilateral double knee replacement. As my compatriot emerged from anesthesia, it was very audibly obvious that he was quite understandably in unimaginable agony. Multiple nurses and techs rushed in and out, and at one point a resident was summoned as the young man was having difficulty breathing.

There was serious conversation about rushing him back into surgery when I heard a loud thump. My roommate had hit his head against the headboard, knocking himself out. His relatives argued with the nurses and resident about what pain medicines should be administered during his recovery.

We live in an ungodly, strange and insidiously cruel perverse world!  When medical professionals seriously consider Tramadol as the most viable and appropriate medicine at such a time, we have reached a new low standard of medical barbarity in these United States of America.

Paging Dr. Sessions, paging Dr. Sessions….

Yes, Tramadol is a somewhat effective pain reliever for some people. But for an operation as critically complex as bilateral double knee replacement surgery?   It never was effective for me and it engendered extreme vomiting for several days.

The agonized screams of that young man over three days still haunt my sleep today -- hopefully, not again tonight.

All of us are familiar with the 1 to 10 pain scale and how it often seems wholly inadequate for describing the pain that many of us feel every day. When the young fellow awoke from his self-induced head to the headboard knockout, he was asked what his pain level was at that moment. Three numbers unmistakably rang out, loud, clear and true: “555! What the blank do you think?”

His anguish was finally lessened by multiple doses of Dilaudid, both orally and intravenously. He was also administered Celebrex for inflammation, and oxycodone. I was a very personally-interested witness to this for several days.

He and I left the hospital at almost the same time, me to go home with my beloved, and he to a rehabilitation facility nearby. His last pain attestation before leaving was “10 or 12.” I was utterly appalled to hear him say that “I will do it all over again” if he were unable to resume his bodybuilding career after rehabilitation.

Well, I have had my follow-up visit with my GP now. He renewed my oxycodone prescription without even asking me about it. For that, I am eternally grateful to God and to my kindhearted physician. He explained to me that he was very glad that I had listened to his nurse’s urging to go to the ER.

I asked him, “Why are my memories of Christmas just a month ago so very foggy?”

It was then my physician made it very clear to me, for the first time, that I had almost died from blood poisoning and kidney failure.

Tom Parker was born in beautiful Charleston, South Carolina. He currently lives in the Albany region of frozen upstate New York with his wonderful Vermont wife of 30 years, Kelly Sue. They have four adult children. Tom has multiple spine problems, including severe cervical spinal stenosis, osteoarthritis, and was born with just one kidney.

Pain News Network invites other readers to share their stories with us. Send them to editor@painnewsnetwork.org.

The information in this column should not be considered as professional medical advice, diagnosis or treatment. It is for informational purposes only and represents the author’s opinions alone. It does not inherently express or reflect the views, opinions and/or positions of Pain News Network.