Association Between Multimodal Analgesia Administration and Perioperative Opioid Requirements in Patients Undergoing Head and Neck Surgery With Free Flap Reconstruction

Opioid Prescription Trends Among Sleep Surgeons in the United States

OBJECTIVE

This study aimed to describe trends in opioid prescriptions among US sleep surgeons between 2013 and 2021 via a retrospective analysis conducted using publicly available data.

METHODS

Utilizing the CMS part D database, we analyzed data from 82 sleep surgeons, focusing on metrics including number of opioid beneficiaries and claims, opioid cost, and opioid day supply per beneficiary. We employed statistical methods including ANOVA, t-tests, Fisher's exact test with Monte Carlo Simulation, and regression models.

RESULTS

There were no significant changes in the number of opioid claims (p = 0.782) or beneficiaries per provider (p = 0.590) nor was there a decrease in opioid day supply per beneficiary (p = 0.489) over time. Surgeons who graduated residency before 2000 prescribed significantly more opioids over the course of the study period compared to those graduating after 2000 with higher opioid day supply per beneficiary (13.34 vs. 7.42, p < 0.001), higher opioid beneficiaries per provider (21.62 vs. 19.36, p = 0.028), and higher opioid claims per provider (30.30 vs. 21.78, p < 0.001). A significant annual decrease in opioid cost per beneficiary (ANOVA, p = 0.006) was noted.

CONCLUSIONS

This study illuminates a significant impact of provider years in practice on opioid prescribing trends, alongside a decreasing trend in opioid cost per beneficiary. Despite the evolving paradigm emphasizing opioid reduction and evidence of decreasing opioid prescriptions in other otolaryngology subspecialties, our findings depict that opioid prescriptions among sleep surgeons remained stable from 2013 to 2021.

LEVEL OF EVIDENCE

III Laryngoscope, 2024.

Opioid-Free Anaesthesia Reduces Complications in Head and Neck Microvascular Free-Flap Reconstruction

Head and neck free-flap microvascular surgeries are complex and resource-intensive procedures where proper conduct of anaesthesia plays a crucial role in the outcome. Flap failure and postoperative complications can be attributed to multiple factors, whether surgical- or anaesthesia-related. The anesthesiologist should ensure optimised physiological conditions to guarantee the survival of the flap and simultaneously decrease perioperative morbidity. Institutions employ different anaesthetic techniques and results vary across centres. In our institution, two different total intravenous approaches have been in use: a remifentanil-based approach and a multimodal opioid-sparing approach, which is further divided into an opioid-free anaesthesia (OFA) subgroup. We studied every consecutive case performed between 2015 and 2022, including 107 patients. Our results show a significant reduction in overall complications (53.3 vs. 78.9%, p = 0.012), length of stay in the intensive care unit (3.43 ± 5.51 vs. 5.16 ± 4.23 days, p = 0.046), duration of postoperative mechanical ventilation (67 ± 107 vs. 9 ± 38 h, p = 0.029), and the need for postoperative vasopressors (10% vs. 46.6%, p = 0.001) in the OFA group (vs. all other patients). The multimodal and OFA strategies have multiple differences regarding the fluid therapy, intraoperative type of vasopressor used, perioperative pathways, and various drug choices compared to the opioid-based technique. Due to the small number of cases in our study, we could not isolate any attitude, as an independent factor, from the success of the OFA strategy as a whole. Large randomised controlled trials are needed to improve knowledge and help define the ideal anaesthetic management of these patients.

Enhanced recovery after surgery, current, and future considerations in head and neck cancer

Objectives

Review of the current and relevant literature to develop a list of evidence-based recommendations that can be implemented in head and neck surgical practices. To provide rationale for the multiple aspects of comprehensive care for head and neck surgical patients. To improve postsurgical outcomes for head and neck surgical patients.

Methods

Extensive review of the medical literature was performed and relevant studies in both the head and neck surgery and other surgical specialties were considered for inclusion.

Results

A total of 18 aspects of perioperative care were included in this review. The literature search included 276 publications considered to be the most relevant and up to date evidence. Each topic is concluded with recommendation grade and quality of evidence for the recommendation.

Conclusion

Since it's conception, enhanced recovery after surgery (ERAS) protocols have continued to push for comprehensive and evidence based postsurgical care to improve patient outcomes. Head and neck oncology is one of the newest fields to develop a protocol. Due to the complexity of this patient population and their postsurgical needs, a multidisciplinary approach is needed to facilitate recovery while minimizing complications. Current and future advances in head and neck cancer research will serve to strengthen and add new principles to a comprehensive ERAS protocol.

Level of Evidence

2a.

Preoperative flurbiprofen diminishes the rate of reoperation after free flap reconstruction: A retrospective study

This study aimed to evaluate the association between preoperative flurbiprofen, a non-selective COX inhibitor, and reoperation for flap crisis after free flap reconstruction. In this retrospective study, patients who underwent head and neck surgery with free flap reconstructions were collected. To identify risk factors for reoperation from demographic features and perioperative variables, univariate and multivariate logistic analyses were conducted. After propensity score matching (PSM), univariate and adjusted multivariate analyses were employed to explore the impact of preoperative flurbiprofen on reoperation after free flap reconstruction. This study comprised 437 patients, 33 of whom underwent reoperations for flap crisis. After multivariate analysis, radiotherapy history (P = 0.005; odds ratio [OR] = 0.225; 95% CI, 0.080-0.636) and preoperative flurbiprofen (P = 0.038; OR = 5.059; 95% CI, 1.094-23.386) were identified as independent factors for reoperation. PSM was achieved, and preoperative flurbiprofen was found to diminish the reoperation rate (P = 0.046; OR = 4.765; 95% CI, 1.029-22.202) without increasing bleeding complications. Within the limitations of the study, flurbiprofen should be administered preoperatively to reduce the rate of reoperations for flap crisis whenever appropriate.

Enhanced Recovery After Surgery for Head and Neck Oncologic Surgery Requiring Microvascular Reconstruction

It has been demonstrated since the 1990's that surgical outcomes can be improved through protocolized perioperative interventions. Since then, multiple surgical societies have engaged in adopting Enhanced Recovery After Surgery (ERAS) Societal recommendations to improve patient satisfaction, decrease the cost of interventions, and improve outcomes. In 2017, ERAS released consensus recommendations detailing the perioperative optimization of patients undergoing head and neck free flap reconstruction. This population was identified as a high resource demand, oftentimes burdened with challenging comorbidity, and poorly described cohort for which a perioperative management protocol could help to optimize outcomes. The following pages aim to further detail perioperative strategies to streamline patient recovery after head and neck reconstructive surgery.

Oxidative Stress and Inflammation Biomarkers in Postoperative Pain Modulation in Surgically Treated Patients with Laryngeal Cancer-Pilot Study

(1) Background: Surgical treatment of laryngeal carcinoma includes different types of laryngectomies with neck dissection. Surgical tissue damage triggers an inflammatory response, leading to the release of pro-inflammatory molecules. This increases reactive oxygen species production and decreases antioxidant defense mechanisms, leading to postoperative oxidative stress. The aim of this study was to assess the correlation between oxidative stress (malondialdehyde, MDA; glutathione peroxidase, GPX; superoxide dismutase, SOD) and inflammation (interleukin 1, IL-1; interleukin-6, IL-6; C-reactive protein, CRP) parameters and postoperative pain management in patients surgically treated with laryngeal cancer. (2) Methods: This prospective study included 28 patients with surgically treated laryngeal cancer. Blood samples were taken for the analysis of oxidative stress and inflammation parameters before the operative treatment and after the operative treatment (1st postoperative day and 7th postoperative day). The concentrations of MDA, SOD, GPX, IL-1, IL-6, and CRP in the serum were determined by coated enzyme-linked immunosorbent assay (ELISA). The visual analog scale (VAS) was used for pain assessment. (3) Results and conclusion: There was a correlation between oxidative stress and inflammation biomarkers and postoperative pain modulation in surgically treated patients with laryngeal cancer. Age, more extensive surgery, CRP values, and use of tramadol were predictors for oxidative stress parameters.

Opioid Sparing Multimodal Analgesia for Transoral Robotic Surgery: Improved Analgesia and Narcotic Use Reduction

Objective

To compare postoperative pain scores and opioid consumption in patients after transoral robotic surgery (TORS).

Study Design

Single institution retrospective cohort study.

Setting

TORS was performed at a single academic tertiary care center.

Methods

This study compared traditional opioid-based and opioid-sparing multimodal analgesia (MMA) regimens in patients with oropharyngeal and supraglottic malignancy after TORS. Data were obtained from the electronic health records from August 2016 to December 2021. The average postoperative pain scores and total opioid consumption in morphine milligram equivalents were calculated for postoperative days (PODs) 0 to 3. The secondary objectives were to quantify and characterize opioid prescriptions upon hospital discharge.

Results

A total of 114 patients were identified for this study, 58 patients in the non-MMA cohort and 56 in the MMA cohort. Postoperative pain levels in the MMA cohort were statistically lower on POD 0 (p = 0.001), POD 1 (p = 0.001), and POD 3 (p = 0.004). Postoperative opioid consumption decreased significantly in the MMA cohort from 37.7 to 10.8 mg on POD 0 (p = 0.002), 65.9 to 19.9 mg on POD 1 (p < 0.001), 36.0 to 19.3 mg on POD 2 (p = 0.02), and 45.4 to 13.8 mg on POD 3 (p = 0.02). The number of patients discharged from the hospital with a prescription for narcotics was significantly lower in the MMA cohort (71.4%) compared with the non-MMA cohort (98.3%) (p < 0.001).

Conclusion

Implementation of our MMA pain protocol reduced pain levels and narcotic consumption in the immediate postoperative period.

The Use of Dissemination and Implementation to Improve Multimodal Analgesia in Head and Neck Surgery

OBJECTIVES

To optimize the delivery of multimodal analgesia to patients undergoing major head and neck oncologic surgeries.

METHODS

Pilot study included patients enrolled to receive either scheduled acetaminophen and as-needed opioids (control group) or scheduled acetaminophen, gabapentin, ketorolac, and as-needed opioids (experimental group). RCT, a hybrid type 1 effectiveness-implementation pragmatic trial, was designed to test the effectiveness of the intervention. Arm A received scheduled acetaminophen and as-needed opioids. Arm B received scheduled gabapentin, ketorolac, a regional nerve block at the free tissue donor site, scheduled acetaminophen and as-needed opioids.

RESULTS

Pilot: Thirty-one patients undergoing major head and neck surgery were enrolled. Mean MMEs administered in control group (n = 15) was 251.60 mg (SD = 224.57 mg); mean MMEs in Experimental group (n = 16) was 195.78 mg (SD = 131.08 mg), p = 0.401. LOS was 8.0 days in control versus 7.0 days in experimental group (p = 0.054). RCT: Interim analysis for safety and futility was planned during trial's design after 30 patients (n = 14 Arm A, and n = 16 Arm B). Mean MMEs administered were 135.1 mg in Arm A, (SD = 86.0 mg) versus mean MME of 51.3 mg in Arm B (SD = 43.3 mg, (p < 0.05)). Given clear superiority results, the trial was prematurely terminated. Functional pain scores, LOS, and complications were similar between the arms (p > 0.05). Variability of mean MME was compared before and after implementation of the management protocols: SD in RCT#1 was 181.46 mg versus 124.6 mg in RCT#2.

CONCLUSION

Multimodal analgesia significantly reduced the need for opioids in patients undergoing major head and neck surgery.

LEVEL OF EVIDENCE

1, Randomized Clinical Trial Laryngoscope, 133:S1-S11, 2023.

Contrasting opioid use for pain management in microvascular head and neck reconstruction: an international study

Opioids are often the mainstay of postoperative pain management, despite strong evidence of their ill effects and potential for long-term addiction. The goal of this study was to quantify opioid use and contrast pain management strategies of multiple international institutions performing fibula free flap reconstruction. A retrospective multicenter cohort study was designed, including five international centers. For inclusion, the patients had to have undergone a primary fibula free flap reconstruction of the mandible. A total of 185 patients were included. The median opioid use across all centers at 72 hours was 133 oral morphine equivalents. The highest utilization was in the USA (P < 0.001), which was approximately six times that of Italy, four times that of Argentina, and twice that of India, despite all centers performing a similar procedure. Based on this study there are clear differences in prescribing practices and ideologies among surgeons from different countries.

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).

Designing an evidence‐based free‐flap pathway in head and neck reconstruction

Background

The use of autologous free‐tissue transfer is an increasingly utilized tool in the ladder of reconstructive options to preserve and restore function in patients with head and neck cancer. This article focuses on the evidence surrounding perioperative care that optimizes surgical outcomes and describes one tertiary center's approach to standardized free‐flap care.

Data Sources

This article examines English literature from PubMed and offers expert opinion on perioperative free‐flap care for head and neck oncology.

Conclusion

Free‐flap reconstruction for head and neck cancer is a process that, while individualized for each patient, is best supported by a comprehensive and standardized care pathway. Surgical optimization begins in the preoperative phase and a thoughtful approach to intraprofessional communication and evidence‐based practice is rewarded with improved outcomes.

Implementation of a Standardized Perioperative Pain Management Protocol to Reduce Opioid Prescriptions in Otolaryngologic Surgery

OBJECTIVE

To evaluate the efficacy of implementing a standardized multimodal perioperative pain management protocol in reducing opioid prescriptions following otolaryngologic surgery.

STUDY DESIGN

Retrospective cohort study.

SETTING

County hospital otolaryngology practice.

METHODS

A perioperative pain management protocol was implemented in adults undergoing otolaryngologic surgery. This protocol included preoperative patient education and a postoperative multimodal pain regimen stratified by pain level: mild, intermediate, and high. Opioid prescriptions were compared between patient cohorts before and after protocol implementation. Patients in the pain protocol were surveyed regarding pain levels and opioid use.

RESULTS

We analyzed 210 patients (105 preprotocol and 105 postprotocol). Mean ± SD morphine milligram equivalents (MMEs) prescribed decreased from 132.5 ± 117.8 to 53.6 ± 63.9 (P < .05) following protocol implementation. Mean MMEs prescribed significantly decreased (P < .05) for each procedure pain tier: mild (107.4 to 40.5), intermediate (112.8 to 48.1), and high (240.4 to 105.0). Mean MMEs prescribed significantly decreased (P < .05) for each procedure type: endocrine (105.6 to 44.4), facial plastics (225.0 to 50.0), general (160.9 to 105.7), head and neck oncology (138.6 to 77.1), laryngology (53.8 to 12.5), otology (77.5 to 42.9), rhinology (142.2 to 44.4), and trauma (288.0 to 24.5). Protocol patients reported a mean 1-week postoperative pain score of 3.4, used opioids for a mean 3.1 days, and used only 39% of their prescribed opioids.

CONCLUSION

Preoperative counseling and standardization of a multimodal perioperative pain regimen for otolaryngology procedures can effectively lower amount of opioid prescriptions while maintaining low levels of postoperative pain.

Multimodal Analgesia in Head and Neck Free Flap Reconstruction: A Systematic Review

OBJECTIVE

Postoperative pain after head and neck cancer surgery is commonly treated with opioids, which are associated with considerable side effects. The objective of this study is to analyze the safety and efficacy of using multimodal analgesia (MMA) for patients undergoing head and neck cancer surgery with free flap reconstruction.

DATA SOURCES

A systematic search was conducted in PubMed, Cochrane, Embase, Scopus, and clinicaltrials.gov.

REVIEW METHODS

All studies comparing patients receiving MMA (gabapentin, corticosteroids, local anesthetic, acetaminophen, nonsteroidal anti-inflammatory drugs [NSAIDs]) vs patients receiving opioids for head and neck cancer surgery with free flap reconstruction were screened. The primary outcome was postoperative opioid usage. Secondary outcomes included length of stay, subjective pain scores, surgical/medical complications, adverse effects, and 30-day outcomes.

RESULTS

A total of 10 studies representing 1253 patients (MMA, n = 594; non-MMA, n = 659) met inclusion criteria. Gabapentinoids were the most commonly used intervention (72.9%) followed by NSAIDs (44.6%), acetaminophen (44.3%), corticosteroids (25.1%), ketamine (7.2%), and nerve block (3.4%). Eight studies reported a significant decrease in postoperative opioid usage in the MMA groups. Subjective pain had wider variation, with most studies citing significant pain improvement. There were no differences in surgical outcomes, medical complications, adverse effects, or 30-day mortality and readmission rates.

CONCLUSION

With the rise of the opioid epidemic, MMA may play an important role in the treatment of postoperative pain after head and neck cancer surgery. A growing body of literature demonstrates a variety of effective perioperative regimens.

Expert Consensus Statement on the Perioperative Management of Adult Patients Undergoing Head and Neck Surgery and Free Tissue Reconstruction From the Society for Head and Neck Anesthesia

The perioperative care of adult patients undergoing free tissue transfer during head and neck surgical (microvascular) reconstruction is inconsistent across practitioners and institutions. The executive board of the Society for Head and Neck Anesthesia (SHANA) nominated specialized anesthesiologists and head and neck surgeons to an expert group, to develop expert consensus statements. The group conducted an extensive review of the literature to identify evidence and gaps and to prioritize quality improvement opportunities. This report of expert consensus statements aims to improve and standardize perioperative care in this setting. The Modified Delphi method was used to evaluate the degree of agreement with draft consensus statements. Additional discussion and collaboration was performed via video conference and electronic communication to refine expert opinions and to achieve consensus on key statements. Thirty-one statements were initially formulated, 14 statements met criteria for consensus, 9 were near consensus, and 8 did not reach criteria for consensus. The expert statements reaching consensus described considerations for preoperative assessment and optimization, airway management, perioperative monitoring, fluid management, blood management, tracheal extubation, and postoperative care. This group also examined the role for vasopressors, communication, and other quality improvement efforts. This report provides the priorities and perspectives of a group of clinical experts to help guide perioperative care and provides actionable guidance for and opportunities for improvement in the care of patients undergoing free tissue transfer for head and neck reconstruction. The lack of consensus for some areas likely reflects differing clinical experiences and a limited available evidence base.

Efficacy of Multimodal Analgesia for Postoperative Pain Management in Head and Neck Cancer Patients

Simple Summary

Chronic opioid use is a serious global health problem and surgery is often the point of initial exposure for many chronic opioid users. Multimodal analgesia (MMA) is an approach designed to reduce or eliminate opioid use in surgical patients, but it has not been studied in patients having major head and neck surgery. This study explores the impact of an MMA protocol on opioid prescribing practices in patients having major head and neck surgery with flap reconstruction. The results of this study will provide evidence to inform and guide pain management practice in this important patient population. The results of this study could also be applied to other areas of otorhinolaryngology. MMA is an important tool in the effort to reduce chronic opioid use.

Abstract

Postoperative opioid use has been linked to the subsequent development of opioid dependency. Multimodal analgesia (MMA) can reduce the use of opioids in the postoperative period, but MMA has not been well-studied after major head and neck surgery. Our goal is to explore the association between MMA and postoperative opioid use and pain control in patients undergoing major head and neck surgery. We performed a retrospective study in adult (age ≥ 18 years) patients undergoing primary head and neck cancer resection with free-flap reconstruction. All patients were treated using an established care pathway. The baseline group was treated between January 2015–December 2015 (n = 41), prior to the implementation of MMA, and were compared to an MMA-treated cohort treated between December 2017–June 2019 (n = 97). The primary outcome was the proportion of opioids prescribed and oral morphine equivalents (OMEs) consumed during the hospitalization. The secondary outcome was pain control. We found that the post-MMA group consumed fewer opioids in the postoperative period compared to the pre-MMA group. Prior to post-operative day (POD) 6, pain control was better in the post-MMA group; however, the pain control lines intersect on POD 6 and the pre-MMA group appeared to have better pain control from PODs 7–10. In conclusion, our data suggest MMA is an effective method of pain control and opioid reduction in patients undergoing surgery for head and neck cancer with free flap reconstruction. MMA use was associated with a significant decrease in the quantity of opioids consumed postoperatively. The MMA protocol was associated with improved pain management early in the postoperative course. Finally, the MMA protocol is a feasible method of pain control and may reduce the adverse side effects associated with opioid use.

Enhanced recovery after surgery for head and neck free flap reconstruction: A systematic review and meta-analysis

INTRODUCTION

Head and neck free flap reconstruction requires multidisciplinary and coordinated care in the perioperative setting to ensure safe recovery and success. Several institutions have introduced enhanced recovery after surgery (ERAS) protocols to attenuate the surgical stress response and improve postoperative recovery. With multiple studies demonstrating mixed results, the success of these interventions on clinical outcomes has yet to be determined.

OBJECTIVE

To evaluate the impact of ERAS protocols and clinical care pathways for head and neck free flap reconstruction.

METHODS

We searched PubMed, SCOPUS, EMBASE, and grey literature up to September 1st, 2020 to identify studies comparing patients enrolled in an ERAS protocol and control group. Our primary outcomes included hospital length of stay (LOS) and readmission. Mortality, reoperations, wound complication and ICU (intensive care unit) LOS comprised our secondary outcomes.

RESULTS

18 studies met inclusion criteria, representing a total of 2630 patients. The specific components of ERAS protocols used by institutions varied. Nevertheless, patients enrolled in ERAS protocols had reduced hospital LOS (MD -4.36 days [-7.54, -1.18]), readmission rates (OR 0.64 [0.45;0.92]), and wound complications (RR 0.41 [0.21, 0.83]), without an increase in reoperations (RR 0.65 [0.41, 1.02]), mortality (RR 0.38 [0.05, 2.88]), or ICU LOS (MD -2.55 days [-5.84, 0.74]).

CONCLUSION

There is growing body of evidence supporting the role of ERAS protocols for the perioperative management of head and neck free flap patients. Our findings reveal that structured clinical algorithms for perioperative interventions improve clinically-meaningful outcomes in patients undergoing complex ablation and microvascular reconstruction procedures.