Association between Posttransplant Opioid Use and Immunosuppressant Therapy Adherence among Renal Transplant Recipients

Endogenous opiates and behavior: 2020

This paper is the forty-third consecutive installment of the annual anthological review of research concerning the endogenous opioid system, summarizing articles published during 2020 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides and receptors as well as effects of opioid/opiate agonists and antagonists. The review is subdivided into the following specific topics: molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors (1), the roles of these opioid peptides and receptors in pain and analgesia in animals (2) and humans (3), opioid-sensitive and opioid-insensitive effects of nonopioid analgesics (4), opioid peptide and receptor involvement in tolerance and dependence (5), stress and social status (6), learning and memory (7), eating and drinking (8), drug abuse and alcohol (9), sexual activity and hormones, pregnancy, development and endocrinology (10), mental illness and mood (11), seizures and neurologic disorders (12), electrical-related activity and neurophysiology (13), general activity and locomotion (14), gastrointestinal, renal and hepatic functions (15), cardiovascular responses (16), respiration and thermoregulation (17), and immunological responses (18).

Standardizing Discharge Opioid Prescriptions in Kidney Transplant Patients Decreases Opioid Usage

BACKGROUND

Kidney transplant recipients are frequently prescribed excess opioids at discharge relative to their inpatient requirements. Recipients who fill prescriptions after transplant have an increased risk of death and graft loss. This study examined the impact of standardized prescriptions on discharge amount and number of outpatient refills.

MATERIALS AND METHODS

A historical cohort (Group 1) was compared to a cohort without patient-controlled analgesia (Group 2) and a cohort in which providers prescribed no opioids to patients who required none on the day prior to discharge, and 10 pills to those who required opioids on the day prior (Group 3). Demographics, oral morphine equivalents (OMEs) prescribed on the day prior to and at discharge, and outpatient refills were collected.

RESULTS

270 recipients were included. There was a nonsignificant trend towards lower OMEs on the day prior to discharge in Groups 2 and 3. Nonopioid adjunct use increased (P < 0.001). Discharge OMEs significantly decreased (mean 87.2 in Group 1, 62.8 in Group 2, 26.6 in Group 3, P< 0.001). The number of patients discharged without opioids increased (23.8% of Group 1, 37.5% of Group 2, 60.6% of Group 3, P < 0.001). Group 3, Asian descent, and lower OMEs on the day prior were factors significantly associated with decreased discharge OMEs on multivariable linear regression. Twelve percent of Group 2 and 2% of Group 3 patients received an outpatient refill (P = 0.02).

CONCLUSIONS

A protocol targeting discharge opioids significantly reduced the amount of opioids prescribed in kidney transplant recipients; most patients subsequently received no opioids at discharge.