Provider preferences for postoperative analgesia in obese and non-obese patients undergoing ambulatory surgery
Abstract
Background: Few guidelines exist on safe prescription of postoperative analgesia to obese patients undergoing
ambulatory surgery. This study examines the preferences of providers in the standard treatment of postoperative
pain in the ambulatory setting.
Methods: Providers from five academic medical centers within a single US city were surveyed from
May–September 2015. They were asked to provide their preferred postoperative analgesic routine based upon the
predicted severity of pain for obese and non-obese patients. McNemar’s tests for paired observations were
performed to compare prescribing preferences for obese vs. non-obese patients. Fisher’s exact tests were
performed to compare preferences based on experience: > 15 years vs. ≤15 years in practice, and attending vs.
resident physicians.
Results: A total of 452 providers responded out of a possible 695. For mild pain, 119 (26.4%) respondents prefer an
opioid for obese patients vs. 140 (31.1%) for non-obese (p = 0.002); for moderate pain, 329 (72.7%) for obese
patients vs. 348 (77.0%) for non-obese (p = 0.011); for severe pain, 398 (88.1%) for obese patients vs. 423 (93.6%) for
non-obese (p < 0.001). Less experienced physicians are more likely to prefer an opioid for obese patients with
moderate pain: 70 (62.0%) attending physicians with > 15 years in practice vs. 86 (74.5%) with ≤15 years (p = 0.047),
and 177 (68.0%) attending physicians vs. 129 (83.0%) residents (p = 0.002).
Conclusions: While there is a trend to prescribe less opioid analgesics to obese patients undergoing ambulatory
surgery, these medications may still be over-prescribed. Less experienced physicians reported prescribing opioids to
obese patients more frequently than more experienced physicians