Implementation of a multi-modal pain regimen to decrease inpatient opioid exposure after injury

Using implementation science to decrease variation and high opioid administration in a surgical ICU

BACKGROUND

High doses and prolonged duration of opioids are associated with tolerance, dependence, and increased mortality. Unfortunately, despite recent efforts to curb outpatient opioid prescribing because of the ongoing epidemic, utilization remains high in the intensive care setting, with intubated patients commonly receiving infusions with a potency much higher than doses required to achieve pain control. We attempted to use implementation science techniques to monitor and reduce excessive opioid prescribing in ventilated patients in our surgical intensive care unit (SICU).

METHODS

We conducted a prospective study investigating opioid administration in a closed SICU at an academic medical center over 18 months. Commonly accepted conversions were used to aggregate daily patient opioid use. Patients with a history of chronic opioid use and those being treated with an intracranial pressure monitor/drain, neuromuscular blocker, or extracorporeal membrane oxygenation were excluded. If the patient spent a portion of a day on a ventilator, that day's total was included in the "vent group." morphine milligram equivalents per patient were collected for each patient and assigned to the on-call intensivist. Intensivists were blinded to the data for the first 7 months. They were then provided with academic detailing followed by audit and feedback over the subsequent 11 months, demonstrating how opioid utilization during their time in the SICU compared with the unit average and a blinded list of the other attendings. Student's t tests were performed to compare opioid utilization before and after initiation of academic detailing and audit and feedback.

RESULTS

Opioid utilization in patients on a ventilator decreased by 20.1% during the feedback period, including less variation among all intensivists and a 30.9% reduction by the highest prescribers.

CONCLUSION

Implementation science approaches can effectively reduce variation in opioid prescribing, especially for high outliers in a SICU. These interventions may reduce the risks associated with prolonged use of high-dose opioids.

LEVEL OF EVIDENCE

Therapeutic/Care Management; Level II.

Ketamine for acute pain after trauma: A pragmatic, randomized clinical trial

BACKGROUND

Non-narcotic intravenous medications may be a beneficial adjunct to oral multimodal pain regimens (MMPRs) which reduce but do not eliminate opioid exposure and prescribing after trauma. We hypothesized that the addition of a subdissociative ketamine infusion (KI) to a standardized oral MMPR reduces inpatient opioid exposure.

METHODS

Eligible adult trauma patients admitted to the intermediate or intensive care unit were randomized upon admission to our institutional MMPR per usual care (UC) or UC plus subdissociative KI for 24 hours to 72 hours after arrival. The primary outcome was morphine milligram equivalents per day (MME/d) and secondary outcomes included total MME, discharge with an opioid prescription (OP%), and rates of ketamine side effects. Bayesian posterior probabilities (pp) were calculated using neutral priors.

RESULTS

A total of 300 patients were included in the final analysis with 144 randomized to KI and 156 to UC. Baseline characteristics were similar between groups. The Injury Severity Scores for KI were 19 [14, 29] versus UC 22 [14, 29]. The KI group had a lower rate of long-bone fracture (37% vs. 49%) and laparotomy (16% vs. 24%). Patients receiving KI had an absolute reduction of 7 MME/day, 96 total MME, and 5% in OP%. In addition, KI had a relative risk (RR) reduction of 19% in MME/day (RR, 0.81 [0.69-0.95], pp = 99%), 20% in total MME (RR, 0.80 [0.64-0.99], pp = 98%), and 8% in OP% (RR, 0.92 [0.76-1.11], pp = 81%). The KI group had a higher rate of delirium (11% vs. 6%); however, rates of other side effects such as arrythmias and unplanned intubations were similar between groups.

CONCLUSION

Addition of a subdissociative ketamine infusion to an oral MMPR resulted in a decrease in opioid exposure in severely injured patients. Subdissociative ketamine infusions can be used as a safe adjunct to decrease opioid exposure in monitored settings.

LEVEL OF EVIDENCE

Therapeutic/Care Management; Level I.

Comparison of thoracic epidural catheter and continuous peripheral infusion for management of traumatic rib fracture pain

BACKGROUND

Thoracic epidural catheters (TECs) are useful adjuncts to multimodal pain regimens in traumatic rib fractures. However, TEC placement is limited by contraindications, patient risk profile, and provider availability. Continuous peripheral infusion of ketamine and/or lidocaine is an alternative that has a modest risk profile and few contraindications. We hypothesized that patients with multiple traumatic rib fractures receiving TECs would have better pain control, in terms of daily morphine milligram equivalents (MMEs) and mean pain scores (MPSs) when compared with continuous peripheral infusions of ketamine and/or lidocaine.

METHODS

We retrospectively analyzed traumatic rib fracture admissions to a level 1 trauma center between January 2018 and December 2020. We evaluated two treatment groups: TEC only and continuous infusion only (drip only). A linear mixed-effects model evaluated the association of MME with treatment group. An interaction term of treatment group by time (days 1-7) was included to allow estimating potential time-dependent treatment effect on MME. A zero-inflated Poisson mixed-effects model evaluated the association of treatment with MPS. Both models adjusted for confounders.

RESULTS

A total of 1,647 patients were included. After multivariable analysis, a significant, time-varying dose-response relationship between treatment group and MME was found, indicating an opioid-sparing effect favoring the TEC-only group. The opioid-sparing benefit for TEC-only therapy was most prominent at day 3 (27.4 vs 36.5 MME) and day 4 (27.3 vs 36.2 MME) (p < 0.01). The drip-only group had 1.21 times greater MPS than patients with TEC only (p < 0.001).

CONCLUSION

Drip-only analgesia is associated with higher daily MME use and MPS, compared with TEC only. The maximal benefit of TEC therapy appears to be on days 3 and 4. Prospective, randomized comparison between groups is necessary to evaluate the magnitude of the treatment effect.

LEVEL OF EVIDENCE

Therapeutic/Care Management; Level III.

Management of Blunt Chest Trauma

Common mechanisms of blunt thoracic injury include motor vehicle collisions and falls. Chest wall injuries include rib fractures and sternal fractures; treatment involves supportive care, multimodal analgesia, and pulmonary toilet. Pneumothorax, hemothorax, and pulmonary contusions are also common and may be managed expectantly or with tube thoracostomy as indicated. Surgical treatment may be considered in select cases. Less common injury patterns include blunt trauma to the tracheobronchial tree, esophagus, diaphragm, heart, or aorta. Operative intervention is more often required to address these injuries.

An opioid-minimizing multimodal pain regimen reduces opioid exposure and pain in trauma-injured patients at high risk for opioid misuse: Secondary analysis from the mast trial

BACKGROUND

Screening to identify patients at risk for opioid misuse after trauma is recommended but not commonly used to guide perioperative opioid management interventions. The Multimodal Analgesic Strategies for Trauma trial demonstrated that an opioid-minimizing multimodal pain regimen reduced opioid exposure in a heterogeneous trauma patient population. Here, we assess the efficacy of the Multimodal Analgesic Strategies for Trauma multimodal pain regimen in a critical patient subgroup who screened at high risk for opioid misuse.

METHODS

The Multimodal Analgesic Strategies for Trauma trial compared an opioid-minimizing multimodal pain regimen (oral acetaminophen, naproxen, gabapentin, lidocaine patch, as-needed opioid) against an original multimodal pain regimen (intravenous followed by oral acetaminophen, 48-hour celecoxib and pregabalin, followed by naproxen and gabapentin, scheduled tramadol, as-needed opioid), in a randomized trial conducted from April 2018 to March 2019. A total of 631 enrolled patients were classified either as low- or high-risk via the Opioid Risk Tool. Bayesian analyses evaluated the moderating influence of Opioid Risk Tool risk (high/low) on the effect of Multimodal Analgesic Strategies for Trauma multimodal pain regimen (versus original) on opioid exposure (morphine milligram equivalents/day), opioids prescribed at discharge, and pain scores.

RESULTS

Multimodal Analgesic Strategies for Trauma multimodal pain regimen effectively reduced morphine milligram equivalents/day in low- and high-Opioid Risk Tool risk groups. Moderation was observed for opioids at discharge and pain scores; Multimodal Analgesic Strategies for Trauma multimodal pain regimen was effective in the high-risk group only (opioids at discharge: 63% vs 77%, relative risk = 0.86, 95% Bayesian credible interval [0.66-1.08], posterior probability (relative risk <1) = 90%; pain scores: b = 3.8, 95% Bayesian credible interval [3.2-4.4] vs b = 4.0, 95% Bayesian credible interval [3.4-4.6], posterior probability (b <0) = 87%).

CONCLUSION

This study is the first to show the moderating influence of opioid misuse risk on the effectiveness of an opioid-minimizing multimodal pain regimen. The Opioid Risk Tool was useful in identifying high-risk patients for whom the Multimodal Analgesic Strategies for Trauma multimodal pain regimen is recommended for perioperative pain management.

Opioid-Free Discharge After Pancreatic Resection Through a Learning Health System Paradigm

Importance

Postoperative opioid overprescribing leads to persistent opioid use and excess pills at risk for misuse and diversion. A learning health system paradigm using risk-stratified pancreatectomy clinical pathways (RSPCPs) may lead to reduction in inpatient and discharge opioid volume.

Objective

To analyze the outcomes of 2 iterative RSPCP updates on inpatient and discharge opioid volumes.

Design, Setting, and Participants

This cohort study included 832 consecutive adult patients at an urban comprehensive cancer center who underwent pancreatic resection between October 2016 and April 2022, comprising 3 sequential pathway cohorts (version [V] 1, October 1, 2016, to January 31, 2019 [n = 363]; V2, February 1, 2019, to October 31, 2020 [n = 229]; V3, November 1, 2020, to April 30, 2022 [n = 240]).

Exposures

After V1 of the pathway established a baseline and reduced length of stay (n = 363), V2 (n = 229) updated patient and surgeon education handouts, limited intravenous opioids, suggested a 3-drug (acetaminophen, celecoxib, methocarbamol) nonopioid bundle, and implemented the 5×-multiplier (last 24-hour oral morphine equivalents [OME] multiplied by 5) to calculate discharge volume. Pathway version 3 (n = 240) required the nonopioid bundle as default in the recovery room and scheduled conversion to oral medications on postoperative day 1.

Main Outcomes and Measures

Inpatient and discharge opioid volume in OME across the 3 RSPCPs were compared using nonparametric testing and trend analyses.

Results

A total of 832 consecutive patients (median [IQR] age, 65 [56-72] years; 410 female [49.3%] and 422 male [50.7%]) underwent 541 pancreatoduodenectomies, 285 distal pancreatectomies, and 6 other pancreatectomies. Early nonopioid bundle administration increased from V1 (acetaminophen, 320 patients [88.2%]; celecoxib or anti-inflammatory, 98 patients [27.0%]; methocarbamol, 267 patients [73.6%]) to V3 (236 patients [98.3%], 163 patients [67.9%], and 238 patients [99.2%], respectively; P < .001). Total inpatient OME decreased from a median 290 mg (IQR, 157-468 mg) in V1 to 184 mg (IQR, 103-311 mg) in V2 to 129 mg (IQR, 75-206 mg) in V3 (P < .001). Discharge OME decreased from a median 150 mg (IQR, 100-225 mg) in V1 to 25 mg (IQR, 0-100 mg) in V2 to 0 mg (IQR, 0-50 mg) in V3 (P < .001). The percentage of patients discharged opioid free increased from 7.2% (26 of 363) in V1 to 52.5% (126 of 240) in V3 (P < .001), with 187 of 240 (77.9%) in V3 discharged with 50 mg OME or less. Median pain scores remained 3 or lower in all cohorts, with no differences in postdischarge refill requests. A subgroup analysis separating open and minimally invasive surgical cases showed similar results in both groups.

Conclusions and Relevance

In this cohort study, the median total inpatient OME was halved and median discharge OME reduced to zero in association with a learning health system model of iterative opioid reduction that is freely adaptable by other hospitals. These findings suggest that opioid-free discharge after pancreatectomy and other major cancer operations is realistic and feasible with this no-cost blueprint.

Randomized Controlled Trial of Surgical Rib Fixation to Nonoperative Management in Severe Chest Wall Injury

OBJECTIVE

To compare the effectiveness of surgical stabilization of rib fractures (SSRFs) to nonoperative management in severe chest wall injury.

BACKGROUND

SSRF has been shown to improve outcomes in patients with clinical flail chest and respiratory failure. However, the effect of SSRF outcomes in severe chest wall injuries without clinical flail chest is unknown.

METHODS

Randomized controlled trial comparing SSRF to nonoperative management in severe chest wall injury, defined as: (1) a radiographic flail segment without clinical flail or (2) ≥5 consecutive rib fractures or (3) any rib fracture with bicortical displacement. Randomization was stratified by the unit of admission as a proxy for injury severity. Primary outcome was hospital length of stay (LOS). Secondary outcomes included intensive care unit (ICU) LOS, ventilator days, opioid exposure, mortality, and incidences of pneumonia and tracheostomy. Quality of life at 1, 3, and 6 months was measured using the EQ-5D-5L survey.

RESULTS

Eighty-four patients were randomized in an intention-to-treat analysis (usual care = 42, SSRF = 42). Baseline characteristics were similar between groups. The numbers of total fractures, displaced fractures, and segmental fractures per patient were also similar, as were the incidences of displaced fractures and radiographic flail segments. Hospital LOS was greater in the SSRF group. ICU LOS and ventilator days were similar. After adjusting for the stratification variable, hospital LOS remained greater in the SSRF group (RR: 1.48, 95% CI: 1.17-1.88). ICU LOS (RR: 1.65, 95% CI: 0.94-2.92) and ventilator days (RR: 1.49, 95% CI: 0.61--3.69) remained similar. Subgroup analysis showed that patients with displaced fractures were more likely to have LOS outcomes similar to their usual care counterparts. At 1 month, SSRF patients had greater impairment in mobility [3 (2-3) vs 2 (1-2), P = 0.012] and self-care [2 (1-2) vs 2 (2-3), P = 0.034] dimensions of the EQ-5D-5L.

CONCLUSIONS

In severe chest wall injury, even in the absence of clinical flail chest, the majority of patients still reported moderate to extreme pain and impairment of usual physical activity at one month. SSRF increased hospital LOS and did not provide any quality of life benefit for up to 6 months.

The Pain Management of Trauma Patients in the Emergency Department

The vast majority of injured patients suffer from pain. Systematic assessment of pain on admission to the emergency department (ED) is a cornerstone of translating the best treatment strategies for patient care into practice. Pain must be measured with severity scales that are validated in clinical practice, including for specific populations (such as children and older adults). Although primary care ED of trauma patients focuses on resuscitation, diagnosis and treatment, pain assessment and management remains a critical element as professionals are not prepared to provide effective and early therapy. To date, most EDs have pain assessment and management protocols that take into account the patient's hemodynamic status and clinical condition and give preference to non-pharmacological approaches where possible. When selecting medications, the focus is on those that are least disruptive to hemodynamic status. Pain relief may still be necessary in hemodynamically unstable patients, but caution should be exercised, especially when using opioids, as absorption may be impaired or shock may be exacerbated. The analgesic dose of ketamine is certainly an attractive option. Fentanyl is clearly superior to other opioids in initial resuscitation and treatment as it has minimal effects on hemodynamic status and does not cause central nervous system depression. Inhaled analgesia techniques and ultrasound-guided nerve blocks are also increasingly effective solutions. A multimodal pain approach, which involves the use of two or more drugs with different mechanisms of action, plays an important role in the relief of trauma pain. All EDs must have policies and promote the adoption of procedures that use multimodal strategies for effective pain management in all injured patients.

Rib Fixation for Multiple Rib Fractures: Healthcare Professionals Perceived Barriers and Facilitators to Clinical Implementation

BACKGROUND

Surgical stabilization of rib fractures (SSRF) is associated with improved respiratory symptoms and shorter intensive care admission in patients with flail chest. For multiple rib fractures, the benefit of SSRF remains a topic of debate. This study investigated barriers and facilitators of healthcare professionals to SSRF as treatment for multiple traumatic rib fractures.

METHODS

Dutch healthcare professionals were asked to complete an adapted version of the Measurement Instrument for Determinants of Innovations questionnaire to identify barriers and facilitators of SSRF. If ≥ 20% of participants responded negatively, the item was considered a barrier, and if ≥ 80% responded positively, the item was considered a facilitator.

RESULTS

Sixty-one healthcare professionals participated; 32 surgeons, 19 non-surgical physicians, and 10 residents. The median experience was 10 years (P₂₅-P₇₅ 4-12). Sixteen barriers and two facilitators for SSRF in multiple rib fractures were identified. Barriers included lack of knowledge, experience, evidence on (cost-)effectiveness, and the implication of more operations and higher medical costs. Facilitators were the assumption that SSRF alleviates respiratory problems and the feeling that surgeons are supported by colleagues for SSRF. Non-surgeons and residents reported more and several different barriers than surgeons (surgeons: 14; non-surgical physicians: 20; residents: 21; p < 0.001).

CONCLUSION

For adequate implementation of SSRF in patients with multiple rib fractures, implementation strategies should address the identified barriers. Especially, improved clinical experience and scientific knowledge of healthcare professionals, and high-level evidence on the (cost-) effectiveness of SSRF potentially increase its use and acceptance.

Multimodal Analgesia's Impact on Opioid Use and Adverse Drug Effects in a Multihospital Health System

Purpose:In addition to opioid abuse and dependency, opioid use can lead to opioid related adverse drug events (ORADEs). ORADEs are associated with increased length of stay, cost of care, 30-day readmission rate, and inpatient mortality. The addition of scheduled non-opioid analgesic medications has shown to be effective in reducing opioid utilization in post-surgical and trauma populations, but evidence in entire hospital patient populations is limited. The objective of this study was to determine the effects of a multimodal analgesia order set on opioid utilization and adverse drug events in adult hospitalized patients. Methods: This retrospective pre/post implementation analysis was conducted at 3 community hospitals and a level II trauma center between January 2016 and December 2019. Patients included were 18 years of age or older, admitted for greater than 24 hours, and had at least one opioid ordered during hospital admission. The primary outcome of this analysis was the average oral morphine milligram equivalents (MME) used on days 1 through 5 of hospitalization. Secondary outcomes included the percentage of hospitalized patients with an opioid ordered for analgesia who received a scheduled non-opioid analgesic medication, the average number of ORADEs recorded in nursing assessments on hospitalization days 1 through 5, length of stay, and mortality. Multimodal analgesic medications included acetaminophen, gabapentinoids, non-steroidal anti-inflammatory drugs, muscle relaxants, and transdermal lidocaine. Results: The pre- and post-groups included 86 535 patients and 85 194 patients, respectively. The average oral MMEs used on days 1 through 5 were lower in the post-group (P < .0001). Utilization of multimodal analgesia as measured by the percentage of patients with 1 or more scheduled multimodal analgesia agent ordered increased from 33% to 49% at the end of the analysis. Conclusion: Utilization of a multimodal analgesia order set was associated with a decrease in opioid use and an increase in multimodal analgesia use in an entire hospital adult population.

Comprehensive Review of Current Pain Management in Rib Fractures With Practical Guidelines for Clinicians

Rib fractures are present in 15% of all traumas and 60% of patients with chest traumas. Rib fractures are not life-threatening in isolation, but they can be quite painful which leads to splinting and compromise of respiratory function. Splinting limits the ability of a patient to take a deep breath, which leads to atelectasis, atelectasis to poor secretion removal, and poor secretion removal leads to pneumonia. Pneumonia is the common pathway to respiratory failure in patients with rib fractures. It is noted that in the elderly, each rib fracture increases developing pneumonia by 27% and the risk of dying by 19%. From a public health perspective, rib fractures have long-term implications with only 59% of patients returning to work at 6 months. In this review we will examine the state of art as it currently exists with regard to the management of pain associated with rib fractures. Included in this overview will be a brief review of the anatomy of the thorax and some important physiologic concepts, the latest trends in pharmacologic and noninvasive means of managing rib pain, a special section on epidural anesthesia, some other alternative invasive methods of pain control, and a review of the recent literature on rib plating. Finally, a practical, easy to follow guideline, to manage the patient with pain from rib fractures will be presented.

Implementation of Multimodal Pain Protocol Associated With Opioid Use Reduction in Trauma Patients

INTRODUCTION

Many trauma centers have adopted multimodal pain protocols (MMPPs) to provide safe and effective pain control. The objective was to evaluate the association of a protocol on opioid use in trauma patients and patient-reported pain scores.

METHODS

This was a retrospective review of adult trauma patients admitted from 7/1-9/30/2018 to 7/1-9/30/2019 at an urban academic level 1 trauma center. The MMPP consisted of scheduled nonopioid medications implemented on July 1, 2019. Patients were stratified by level of care upon admission, intensive care unit (ICU) or floor, and by injury severity score (ISS) (ISS < 16 or ISS ≥ 16). Pain scores, opioid, and nonopioid analgesic medication use were compared for the hospital stay or first 30 d.

RESULTS

Seven hundred ninety eight patients were included with a mean age of 54 ± 22 y and 511 (64.0%) were men. Demographic and clinical characteristics between those in the pre-MMP (n = 404) and post-MMPP (n = 394) groups were not different. The average pain scores were not different between the two groups (3.7 versus 3.8, P = 0.44), but patients in the post-MMPP group received 36% less morphine milliequivalents (109.6 versus 70; P < 0.0001). The MMPP had the largest effect on patients admitted to the ICU regardless of injury severity. ICU patients with ISS ≥ 16 had the greatest reduction in morphine milliequivalents (174.6 versus 84.4; P < 0.0001). The use of nonopioid analgesics was significantly increased in all groups.

CONCLUSIONS

A MMPP is associated with a reduction of opioids and increase in nonopioid analgesics with no difference in patient-reported pain scores.

Opioid prescribing practices in trauma patients at discharge: An exploratory retrospective chart analysis

This study examined the opioid prescribing patterns at discharge in the trauma center of a major Canadian hospital and compared them to the guidelines provided by the Illinois surgical quality improvement collaborative (ISQIC), a framework that has been recognized as being associated with reduced risk. This was a retrospective chart review of patient data from the trauma registry between January 1, 2018, and October 31, 2019. A total of 268 discharge charts of naïve opioid patients were included in the analysis. A Morphine Milligram Equivalents per day (MME/day) was computed for each patient who was prescribed opioids and compared with standard practice guidelines. About 75% of patients were prescribed opioids. More males (75%) than females (25%) were prescribed opioids to patients below 65 years old (91%). Best practice guidelines were followed in most cases. Only 16.6% of patients were prescribed over 50 mg MME/day, the majority (80.9%) were prescribed opioids for =<3 days and only 1% for >7 days. Only 7.5% were prescribed extended-release opioids and none were strong like fentanyl. Patients received a multimodal approach with alternatives to opioids in 88.9% of cases and 82.9% had a plan for opioid discontinuation. However, only 23.6% received an acute pain service referral. The majority of the prescriptions provided adhered to the best practice guidelines outlined by the ISQIC framework. These results are encouraging with respect to the feasibility of implementing opioid prescription guidelines effectively. However, routine monitoring is necessary to ensure that adherence is maintained.

Ketamine for acute pain after trauma: the KAPT randomized controlled trial

Background

Evidence for effective pain management and opioid minimization of intravenous ketamine in elective surgery has been extrapolated to acutely injured patients, despite limited supporting evidence in this population. This trial seeks to determine the effectiveness of the addition of sub-dissociative ketamine to a pill-based, opioid-minimizing multi-modal pain regimen (MMPR) for post traumatic pain.

Methods

This is a single-center, parallel-group, randomized, controlled comparative effectiveness trial comparing a MMPR to a MMPR plus a sub-dissociative ketamine infusion. All trauma patients 16 years and older admitted following a trauma which require intermediate (IMU) or intensive care unit (ICU) level of care are eligible. Prisoners, patients who are pregnant, patients not expected to survive, and those with contraindications to ketamine are excluded from this study. The primary outcome is opioid use, measured by morphine milligram equivalents (MME) per patient per day (MME/patient/day). The secondary outcomes include total MME, pain scores, morbidity, lengths of stay, opioid prescriptions at discharge, and patient centered outcomes at discharge and 6 months.

Discussion

This trial will determine the effectiveness of sub-dissociative ketamine infusion as part of a MMPR in reducing in-hospital opioid exposure in adult trauma patients. Furthermore, it will inform decisions regarding acute pain strategies on patient centered outcomes.

Trial registration

The Ketamine for Acute Pain Management After Trauma (KAPT) with registration # NCT04129086 was registered on October 16, 2019.

Association of Patient Controlled Analgesia and Total Inpatient Opioid Use After Pancreatectomy

INTRODUCTION

The initial settings on an intravenous patient-controlled analgesia (IV-PCA) pump can represent a significant source of postoperative opioid exposure. The primary aim of this study was to evaluate the impact of first day IV-PCA use on total inpatient opioid use after open pancreatectomy, before and after standardization of initial dosing.

METHODS

Inpatient oral morphine equivalents (OMEs) were reviewed for pancreatectomy patients treated with IV-PCA at a single institution before and after (3/2016-8/2017 versus 3/2019-11/2020) implementation of a standardized initial IV-PCA dosing regimen (initial limit 0.1 mg hydromorphone, or 1 mg OME, every 10 min as needed). IV-PCA OME in the first 24 h and the total inpatient OME were compared between cohorts.

RESULTS

Of 220 total patients, 132 were in the prestandardization (PRE) historical cohort. A first-24-h IV-PCA use was different (PRE median 95 mg versus poststandardization [POST] 15 mg, P < 0.001). The median total inpatient OME was different (P < 0.001) between PRE (525 mg, interquartile range [IQR] 239-951 mg) and POST patients (129 mg, IQR 65-204 mg) with 77% (median 373 mg) of total inpatient OMEs contributed by IV-PCA in the PRE and 56% (median 64 mg) in the POST cohorts. There were similar patient-reported pain scores between groups.

CONCLUSIONS

Standardizing initial IV-PCA settings was associated with a reduced first-24-h opioid exposure, proportional and absolute total IV-PCA use, and total inpatient OMEs. Because of the contribution of an IV-PCA to the total inpatient opioid exposure, purposeful reduction or omission of an IV-PCA is critical to perioperative opioid reduction strategies.

The Declining Use of Opioids at a Level 1 Trauma Center

BACKGROUND

The epidemic of opioid-related overdose in the United States prompted a public health response that included implementation of opioid prescribing guidelines and restrictions. Such directives, however, were not applicable to hospitalized trauma patients. We hypothesized that although prescribing mandates did not apply to hospitalized trauma patients, inpatient opioid administration had nonetheless decreased over time.

METHODS

Opioid administrations for each patient admitted to a level I trauma center between January 1, 2016 and July 31, 2020 were converted into oral morphine milligram equivalents (MMEs) and summed at the patient level to obtain a total amount of MME administered for each hospitalization. MME was natural log transformed to achieve a normal distribution. General linear models were then used to determine the average patient MME administered by year. Patients who were pregnant or mechanically ventilated during their hospitalization were excluded.

RESULTS

Six thousand five hundred ninety-four patients were included in our analysis, of which 5037 (76.4%) were treated with opioids during their hospitalization (morphine 72.7%, oxycodone 9.6%, tramadol 10.2%, fentanyl 5.5%, and hydromorphone 2.1%). The percentage of patients administered an opioid decreased stepwise from 79.3% in 2016 to 71.4% in 2020 (P < .001). For patients administered opioids, a 28% decrease in average total MME from 2016 to 2020 (P < .001) was observed. When stratified by ISS (<9, 9-15, 16+), average total MME consistently trended downward over time.

CONCLUSION

Our trauma center realized a stepwise reduction in opioid administration in the absence of rules or restrictions surrounding in-hospital opioid prescribing.

Multimodal analgesia reduces opioid requirements in trauma patients with rib fractures

BACKGROUND

Rib fractures are common in trauma patients and are associated with significant morbidity and mortality. Adequate analgesia is essential to avoid the complications associated with rib fractures. Opioids are frequently used for analgesia in these patients. This study compared the effect of a multimodal pain regimen (MMPR) on inpatient opioid use and outpatient opioid prescribing practices in adult trauma patients with rib fractures.

STUDY DESIGN

A pre-post cohort study of adult trauma patients with rib fractures was conducted at a Level I trauma center before (PRE) and after (POST) implementation of an MMPR. Patients on long-acting opioids before admission and those on continuous opioid infusions were excluded. Primary outcomes were oral opioid administration during the first 5 days of hospitalization and opioids prescribed at discharge. Opioid data were converted to morphine milligram equivalents (MMEs).

RESULTS

Six hundred fifty-three patients met inclusion criteria (323 PRE, 330 POST). There was a significant reduction in the daily MME during the second through fifth days of hospitalization; and the average inpatient MME over the first five inpatient days (23 MME PRE vs. 17 MME POST, p = 0.0087). There was a significant reduction in the total outpatient MME prescribed upon discharge (322 MME PRE vs. 225 MME POST, p = 0.006).

CONCLUSION

The implementation of an MMPR in patients with rib fractures resulted in significant reduction in inpatient opioid consumption and was associated with a reduction in the quantity of opiates prescribed at discharge.

LEVEL OF EVIDENCE

Therapeutic/Care Management; level IV.

Age-related Opioid Exposure in Trauma: A Secondary Analysis of the Multimodal Analgesia Strategies for Trauma (MAST) Randomized Trial

OBJECTIVE

Evaluate the effect of age on opioid consumption after traumatic injury.

SUMMARY BACKGROUND DATA

Older trauma patients receive fewer opioids due to decreased metabolism and increased complications, but adequacy of pain control is unknown. We hypothesized that older trauma patients require fewer opioids to achieve adequate pain control.

METHODS

A secondary analysis of the multimodal analgesia strategies for trauma Trial evaluating the effectiveness of 2 multimodal pain regimens in 1561 trauma patients aged 16 to 96 was performed. Older patients (≥55 years) were compared to younger patients. Median daily oral morphine milligram equivalents (MME) consumption, average numeric rating scale pain scores, complications, and death were assessed. Multivariable analyses were performed.

RESULTS

Older patients (n = 562) had a median age of 68 years (interquartile range 61-78) compared to 33 (24-43) in younger patients. Older patients had lower injury severity scores (13 [9-20] vs 14 [9-22], P = 0.004), lower average pain scores (numeric rating scale 3 [1-4] vs 4 [2-5], P < 0.001), and consumed fewer MME/day (22 [10-45] vs 52 [28-78], P < 0.001). The multimodal analgesia strategies for trauma multi-modal pain regimen was effective at reducing opioid consumption at all ages. Additionally, on multivariable analysis including pain score adjustment, each decade age increase after 55 years was associated with a 23% reduction in MME/day consumed.

CONCLUSIONS

Older trauma patients required fewer opioids than younger patients with similar characteristics and pain scores. Opioid dosing for post-traumatic pain should consider age. A 20 to 25% dose reduction per decade after age 55 may reduce opioid exposure without altering pain control.

Impact of Opioid-Minimizing Pain Protocols after Burn Injury

In 2019, we implemented a pill-based, opioid-minimizing pain protocol and protocolized moderate sedation for dressing changes in order to decrease opioid exposure in burn patients. We hypothesized that these interventions would reduce inpatient opioid exposure without increasing acute pain scores. Two groups of consecutive patients admitted to the burn service were compared: Pre (01/01/2018 to 07/31/2019) and Post (01/01/2020 to 06/30/2020) implementation of the protocols (08/01/2019 to 12/31/2019). We abstracted patient demographics and burn injury characteristics from the burn registry. We obtained opioid exposure and pain scale scores from the electronic medical record. The primary outcome was total morphine milligram equivalents (MME). Secondary outcomes included MME/day, pain domain-specific MME, and pain scores. Pain was estimated by creating a normalized pain score (range 0-1), which incorporated 3 different pain scales (Numeric Rating Scale, Behavioral Pain Scale, and Behavioral Pain Assessment Scale). Groups were compared using Wilcoxon Rank Sum and Chi Square. Treatment effects were estimated using Bayesian generalized linear models.There were no differences in demographics or burn characteristics between the Pre (n=495) and Post groups (n=174). The Post group had significantly lower total MME (Post 110 MME [32, 325] versus Pre 230 [60, 840], p<0.001), MME/day (Post 33 MME/day [15, 54] versus Pre 52 [27, 80], p<0.001), and domain-specific total MME. No difference in average normalized pain scores was seen.Implementation of opioid-minimizing protocols for acute burn pain was associated with a significant reduction in inpatient opioid exposure without an increase in pain scores.

Multi-Modal Analgesic Strategy for Trauma: A Pragmatic Randomized Clinical Trial

BACKGROUND

An effective strategy to manage acute pain and minimize opioid exposure is needed for injured patients. In this trial, we aimed to compare 2 multimodal pain regimens (MMPRs) for minimizing opioid exposure and relieving acute pain in a busy, urban trauma center.

METHODS

This was an unblinded, pragmatic, randomized, comparative effectiveness trial of all adult trauma admissions except vulnerable patient populations and readmissions. The original MMPR (IV administration, followed by oral, acetaminophen, 48 hours of celecoxib and pregabalin, followed by naproxen and gabapentin, scheduled tramadol, and as-needed oxycodone) was compared with an MMPR of generic medications, termed the Multi-Modal Analgesic Strategies for Trauma (MAST) MMPR (ie oral acetaminophen, naproxen, gabapentin, lidocaine patches, and as-needed opioids). The primary endpoint was oral morphine milligram equivalents (MMEs) per day and secondary outcomes included total MMEs during hospitalization, opioid prescribing at discharge, and pain scores.

RESULTS

During the trial, 1,561 patients were randomized, 787 to receive the original MMPR and 774 to receive the MAST MMPR. There were no differences in demographic characteristics, injury characteristics, or operations performed. Patients randomized to receive the MAST MMPR had lower MMEs per day (34 MMEs/d; interquartile range 15 to 61 MMEs/d vs 48 MMEs/d; interquartile range 22 to 74 MMEs/d; p < 0.001) and fewer were prescribed opioids at discharge (62% vs 67%; p = 0.029; relative risk 0.92; 95% credible interval, 0.86 to 0.99; posterior probability relative risk <1 = 0.99). No clinically significant difference in pain scores were seen.

CONCLUSIONS

The MAST MMPR was a generalizable and widely available approach that reduced opioid exposure after trauma and achieved adequate acute pain control.

Pain management in the surgical ICU patient

PURPOSE OF REVIEW

Acute pain management in the surgical ICU is imperative. Effective acute pain management hastens a patient's return to normal function and avoid the negative sequelae of untreated acute pain. Traditionally, opioids have been the mainstay of acute pain management strategies in the surgical ICU, but alternative medications and management strategies are increasingly being utilized.

RECENT FINDINGS

Extrapolating from lessons learned from enhanced recovery after surgery protocols, surgical intensivists are increasingly utilizing multimodal pain regimens (MMPRs) in critically ill surgical patients recovering from major surgical procedures and injuries. MMPRs incorporate both oral medications from several drug classes and regional blocks when feasible. In addition, although MMPRs may include opioids as needed, they are able to achieve effective pain control while minimizing opioid exposure.

SUMMARY

Even after major elective surgery or significant injury, opioid-minimizing MMPRs can effectively treat acute pain.

Do early non-steroidal anti-inflammatory drugs for analgesia worsen acute kidney injury in critically ill trauma patients? An inverse probability of treatment weighted analysis

BACKGROUND

Administration of nonsteroidal anti-inflammatory drugs (NSAIDs) for acute posttraumatic analgesia is increasing in popularity as an alternative to opioids despite reservations regarding its potential impact on the development of acute kidney injury (AKI). We hypothesized that early NSAID administration for analgesia would be associated with worsened renal function in severely injured trauma patients.

METHODS

A retrospective cohort study of severely injured adult (≥16 years) patients admitted to the intensive care unit with ≥1 rib fracture between 2010 and 2017 was performed. The early NSAID group was defined by receipt of one or more doses of NSAID within the first 48 hours of hospitalization. Acute kidney injury diagnosis and staging were defined by the Kidney Disease Improving Global Outcomes Guidelines. The primary outcome was a composite measure of two outcomes within the first week of hospitalization: (1) AKI progression (increase in AKI stage from arrival) or (2) death. Secondary outcomes included AKI progression, AKI improvement, AKI duration, and mortality. Inverse propensity of treatment weights were generated using clinically sound covariates suspected to be associated with the decision to give early NSAIDs and the primary or secondary outcomes. Multivariable analyses were performed adjusting for inverse propensity of treatment weights, covariates, and length of stay.

RESULTS

Of 2,340 patients, 268 (11%) were administered early NSAIDs. When compared with the control group, patients who received early NSAIDs were less severely injured. Renal outcomes were worse in the control group. Standardized mean differences were minimal after weighting. On multivariable analysis, administration of early NSAIDs was not associated with worsened renal outcomes or increased mortality.

CONCLUSION

Although only 11% of patients received early NSAIDs after trauma for analgesia, early NSAID exposure was not associated with increased AKI progression, decreased AKI improvement, prolonged duration, or increased mortality. Given the lack of evidence showing harm, early NSAIDs for analgesia may be underused for severely injured patients.

LEVEL OF EVIDENCE

Prognostic, level III, Therapeutic, level IV.

Opioid exposure after injury in United States trauma centers: A prospective, multicenter observational study

BACKGROUND

Efforts to reduce opioid use in trauma patients are currently hampered by an incomplete understanding of the baseline opioid exposure and variation in United States. The purpose of this project was to obtain a global estimate of opioid exposure following injury and to quantify the variability of opioid exposure between and within United States trauma centers.

STUDY DESIGN

Prospective observational study was performed to calculate opioid exposure by converting all sources of opioids to oral morphine milligram equivalents (MMEs). To estimate variation, an intraclass correlation was calculated from a multilevel generalized linear model adjusting for the a priori selected variables Injury Severity Score and prior opioid use.

RESULTS

The centers enrolled 1,731 patients. The median opioid exposure among all sites was 45 MMEs per day, equivalent to 30 mg of oxycodone or 45 mg of hydrocodone per day. Variation in opioid exposure was identified both between and within trauma centers with the vast majority of variation (93%) occurring within trauma centers. Opioid exposure increased with injury severity, in male patients, and patients suffering penetrating trauma.

CONCLUSION

The overall median opioid exposure was 45 MMEs per day. Despite significant differences in opioid exposure between trauma centers, the majority of variation was actually within centers. This suggests that efforts to minimize opioid exposure after injury should focus within trauma centers and not on high-level efforts to affect all trauma centers.

LEVEL OF EVIDENCE

Epidemiological, level III.