A Review of Phenobarbital for Alcohol Withdrawal Syndrome

2021 ◽  
Vol 10 ◽  
Author(s):  
Heva Saadatmand ◽  
Pochu Ho

Background: Alcohol use disorder represents a serious health problem worldwide which is increasing in pervasiveness. Alcohol withdrawal syndrome is a common clinical problem encountered in emergency departments and inpatient settings, including intensive care units. While benzodiazepines are the most widely used class of medication for the treatment of alcohol withdrawal, in recent years, there is renewed interest in using phenobarbital, a barbiturate, in the treatment of refractory alcohol withdrawal. Objective: This review provides an overview of phenobarbital in the treatment of alcohol withdrawal, as well as clinical outcomes in patients, while also outlining some of the limitations of existing studies in comparing phenobarbital to benzodiazepines. Methods: PubMed, Ovid MEDLINE, and Cochrane databases were searched using the terms phenobarbital, barbiturates, and alcohol withdrawal syndrome. Prospective and retrospective trials comparing phenobarbital with benzodiazepines to treat alcohol withdrawal in English were included. Results: Two prospective randomized controlled and eleven retrospective cohort trials were identified. Phenobarbital is safe alone and as an adjunct to benzodiazepine in the emergency department, intensive care units, general medical units and acute trauma surgery service. In a randomized controlled trial, one dose of phenobarbital in the emergency department significantly reduced the intensive care admission rate. There is some evidence that phenobarbital may be effective in the treatment of benzodiazepine-refractory alcohol withdrawal. Conclusion: Although existing knowledge and practice regarding phenobarbital for the treatment of alcohol withdrawal are increasing, there currently remains limited evidence in support of phenobarbital over benzodiazepines in superior efficacy and outcomes.

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Tessa L. Steel ◽  
Shewit P. Giovanni ◽  
Sarah C. Katsandres ◽  
Shawn M. Cohen ◽  
Kevin B. Stephenson ◽  
...  

Abstract Background The Clinical Institute Withdrawal Assessment for Alcohol-Revised (CIWA-Ar) is commonly used in hospitals to titrate medications for alcohol withdrawal syndrome (AWS), but may be difficult to apply to intensive care unit (ICU) patients who are too sick or otherwise unable to communicate. Objectives To evaluate the frequency of CIWA-Ar monitoring among ICU patients with AWS and variation in CIWA-Ar monitoring across patient demographic and clinical characteristics. Methods The study included all adults admitted to an ICU in 2017 after treatment for AWS in the Emergency Department of an academic hospital that standardly uses the CIWA-Ar to assess AWS severity and response to treatment. Demographic and clinical data, including Richmond Agitation-Sedation Scale (RASS) assessments (an alternative measure of agitation/sedation), were obtained via chart review. Associations between patient characteristics and CIWA-Ar monitoring were tested using logistic regression. Results After treatment for AWS, only 56% (n = 54/97) of ICU patients were evaluated using the CIWA-Ar; 94% of patients had a documented RASS assessment (n = 91/97). Patients were significantly less likely to receive CIWA-Ar monitoring if they were intubated or identified as Black. Conclusions CIWA-Ar monitoring was used inconsistently in ICU patients with AWS and completed less often in those who were intubated or identified as Black. These hypothesis-generating findings raise questions about the utility of the CIWA-Ar in ICU settings. Future studies should assess alternative measures for titrating AWS medications in the ICU that do not require verbal responses from patients and further explore the association of race with AWS monitoring.


CJEM ◽  
2016 ◽  
Vol 18 (S1) ◽  
pp. S39-S39 ◽  
Author(s):  
B. Borgundvaag ◽  
S.L. McLeod ◽  
T.E. Dear ◽  
S.M. Carver ◽  
N. Norouzi ◽  
...  

Introduction: Ideal management of alcohol withdrawal syndrome (AWS) incorporates a symptom driven approach, whereby patients are regularly assessed using a standardized scoring system (Clinical Institute Withdrawal Assessment for Alcohol-Revised; CIWA-Ar) and treated according to severity. Among the domains assessed by the CIWA-Ar, tremor is the most objective indicator of withdrawal severity, however, the ability of clinicians to reliably quantify tremor is highly dependent on experience. The objective of this study was to prospectively validate an objective, reliable tool to standardize and quantify the severity of alcohol withdrawal tremor using the built-in accelerometer of an iOS application. Methods: A prospective observational study of patients ≥18 years presenting to an academic emergency department in alcohol withdrawal was conducted from Oct 2014 to Aug 2015. Assessments were videotaped by a research assistant and subsequently reviewed by 3 clinical experts, blinded to the primary clinical assessment. Tremor severity was scored using the 8-point CIWA scale (0=no tremor, 7=severe tremor). Accelerometer derived results were compared to expert assessments of each video. Inter-rater agreement was estimated using Cohen’s kappa (k) statistic. Results: 76 patients with 78 tremor recordings were included. Accelerometer derived tremor scores matched exactly with expert assessor scores in 36 (46.2%) cases, within 1 point for 73 (93.6%) cases and differed by ≥ 2 points in 5 (6.4%) cases. The overall kappa for agreement within 1 point for tremor severity was ‘very good’ 0.92 (95% CI: 0.86, 0.99). Conclusion: iOS accelerometer based assessment of the tremor component of the CIWA-Ar score is reliable and has potential to more accurately assess the severity of patients in alcohol withdrawal. We anticipate this resource will be easily disseminated and will impact and improve the care of patients with alcohol withdrawal.


CHEST Journal ◽  
2015 ◽  
Vol 148 (4) ◽  
pp. 225A
Author(s):  
Krystal Cleven ◽  
lauren healy ◽  
Mabel Wei ◽  
Seth Koenig ◽  
Paul Mayo ◽  
...  

2021 ◽  
Author(s):  
Justin Jek-Kahn Koh ◽  
Madeline Malczewska ◽  
Mary M. Doyle-Waters ◽  
Jessica Moe

Abstract Background Patients who experience harms from alcohol and other substance use often seek care in the emergency department (ED). Many ED patients with alcohol use disorder will require management of alcohol withdrawal. ED clinicians are responsible for risk-stratifying these patients under time and resource constraints and must reliably identify those who are safe for outpatient management versus those who require more intensive levels of care. Published guidelines for alcohol withdrawal are largely limited to the primary care and outpatient settings, and do not provide specific guidance for ED use. The purpose of this review was to synthesize published evidence on the treatment of alcohol withdrawal syndrome specifically in the emergency department setting. Methods We conducted a rapid review by searching MEDLINE, Embase, and the Cochrane Central Register of Controlled Trials (1980 to 2020). We also searched for grey literature on Google and hand-searched the conference abstracts of relevant addiction medicine and emergency medicine professional associations (2015 to 2020). We included interventional and observational studies that reported outcomes of clinical interventions aimed at treating alcohol withdrawal syndrome in adults in the ED. Results We identified 13 studies that met inclusion criteria for our review (7 randomized controlled trials and 6 observational studies). Most studies were at high/serious risk of bias. We divided studies based on intervention and summarized evidence narratively. Benzodiazepines decrease alcohol withdrawal seizure recurrence, but no clear evidence supports the use of one benzodiazepine over another. It is unclear if symptom-triggered benzodiazepine protocols are effective for use in the ED. More evidence is needed to determine if phenobarbital, with or without benzodiazepines, can be used safely and effectively to treat alcohol withdrawal in the ED. Phenytoin does not have evidence of effectiveness at preventing withdrawal seizures in the ED. Conclusions Few studies have evaluated the safety and efficacy of pharmacotherapies for alcohol withdrawal specifically in the ED setting. Benzodiazepines are the most evidence-based treatment for alcohol withdrawal in the ED. Pharmacotherapies that have demonstrated benefit for treatment of alcohol withdrawal in other inpatient and outpatient settings need to be evaluated in the ED setting before routine use.


2018 ◽  
pp. emermed-2017-206997 ◽  
Author(s):  
Muhammad Fahmi Ismail ◽  
Kieran Doherty ◽  
Paula Bradshaw ◽  
Iomhar O’Sullivan ◽  
Eugene M Cassidy

IntroductionWe previously reported that benzodiazepine detoxification for alcohol withdrawal using symptom-triggered therapy (STT) with oral diazepam reduced length of stay (LOS) and cumulative benzodiazepine dose by comparison with standard fixed-dose regimen. In this study, we aim to describe the feasibility of STT in an emergency department (ED) short-stay clinical decision unit (CDU) setting.MethodsIn this retrospective cohort study, we describe our experience with STT over a full calendar year (2014) in the CDU. A retrospective chart review was conducted and data collection included demographics, clinical details, total cumulative dose of diazepam, receipt of parenteral thiamine, LOS and disposition.Results5% (n=174) of 3222 admissions to CDU required STT. Collapse or seizure (41%, n=71) and alcohol withdrawal (21%, n=37) were the most common reasons recorded for admission to CDU in those who required STT. Median Alcohol Use Disorders Identification Test score was 25 and 112 patients (64%) had at least one Clinical Institute Withdrawal Assessment for Alcohol revised measurement ≥10, triggering a dose of diazepam (20 mg). The median cumulative oral diazepam dose was 20 mg while 24 (15%) patients received a cumulative dose of 100 mg or more. Median time for STT was 12 hours (IQR=12, R=1–48). 3% (n=5) of patients required further general hospital admission and median LOS in CDU, was 22 hours (IQR=20, R=1–168).ConclusionSTT is potentially feasible as a rapid and effective approach to managing alcohol withdrawal syndrome in the ED/CDU short-stay inpatient setting where patient LOS is generally less than 24 hours.


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