By Pat Anson, PNN Editor

In recent years, many U.S. hospitals have adopted policies that reduce or eliminate the use of opioids during and after surgery.

Patients at Houston Methodist Hospital, for example, are getting acetaminophen (Tylenol) for post-operative pain after hernia repairs and other minimally invasive surgeries. And dozens of hospitals in Michigan have adopted guidelines for post-operative pain that have significantly reduced the use of opioids.

But a new study presented at the annual meeting of the American College of Surgeons suggests that policies that discourage the use of opioids for post-operative pain may be neglecting patients that need opioids for better pain control.

“The key findings of our study are that we were able to successfully reduce how many opioids we were prescribing for patients after operations using evidence-based guidelines,” said lead author Cornelius Thiels, DO, a surgical oncology fellow at Memorial Sloan Kettering Cancer Center and a researcher at the Mayo Clinic.

“However, the other finding of our research is that there’s still additional room to improve in terms of making sure all patients after surgery have their pain well controlled.”

The researchers evaluated 138 patients who had one of 12 elective surgeries after the Mayo Clinic adopted guidelines in 2018 that call for “multimodal pain control,” a combination of opioids with non-opioid pain relievers such as ibuprofen, naproxen and acetaminophen. Those patients were compared with 603 patients who had the same procedures before the guidelines, when opioids were used more widely.

While most patients in the post-guideline group were satisfied with their pain control after discharge, a significant number were not.

In telephone surveys conducted about four weeks after discharge, the percentage of patients in the post-guideline group who were dissatisfied with their pain control was more than double that of the pre-guideline group (9.4% vs. 4.2%). The percentage who said they were not prescribed enough pain medication was also higher (12.5% vs. 4.9%).

“There is a small subset of patients who we’re not optimally managing yet, and this study confirmed that this is a small number,” Thiels said. “However, I think that’s a critically important subset of patients.”

Thiel says about half of patients need opioid medication after major surgeries, and doctors need to do a better job identifying who they are.

“Our goal is to give them the exact right amount so that we limit the number of un-used opioids in our community while also making sure we don’t reduce it down too far and then leave them in pain,” he said. “The right answer may be more non-opioid based pain medications, better patient education and setting of expectations, or in some cases patients may actually require slightly more opioid medications, and that is OK.”  

Opioid addiction is actually rare after surgery.  A large 2016 Canadian study found only 0.4% of older adults were still taking opioids a year after major elective surgery.  Another large study in the British Medical Journal found only 0.2% of patients who were prescribed opioids for post-surgical pain were later diagnosed with opioid dependence, abuse or had a non-fatal overdose.