J Korean Soc Clin Toxicol.  2015 Dec;13(2):103-110.

Effect of High Dose Insulin/Euglycemia Therapy for Acute Calcium Channel Blocker Intoxication: A Systematic Review

Affiliations
  • 1Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea. emstar@yuhs.ac

Abstract

PURPOSE
The purpose of this study is to evaluate the effectiveness and the adverse events of high dose insulin/euglycemia therapy in acute calcium channel blocker (CCB) poisoning.
METHODS
We developed a systematic search strategy and applied it to 4 electronic reference databases. We searched medical journals as well as the bibliographies of relevant articles. All forms of literature relevant to human use of high dose insulin for acute CCB poisoning were included. The literature search was conducted by two investigators in August, 2015 with publication language restricted to English and Korean. Case reports were divided between CCB overdose alone and multi-drug overdose including CCB. The effect and adverse event of high dose insulin and clinical outcome of each case were analyzed.
RESULTS
Among 55 searched studies, 20 studies were included. A prospective study, a retrospective study, a systematic review study, and 17 case reports were identified. Case reports consisted of 11 CCB alone and 12 multidrug overdose cases including CCB. Although most cases described significant clinical improvements, one of them showed no beneficial effect. Several adverse events including hypoglycemia and hypokalemia were reported. No significant sequalae from adverse events was reported.
CONCLUSION
Although there were many case reports demonstrating successful use of high dose insulin for CCB poisoning, the effect cannot be estimated due to a possibility of publication bias. Therefore, high dose insulin/euglycemia therapy might be considered adjunctive therapy in cases of CCB intoxication refractory for standard therapy.

Keyword

Calcium channel blockers; Poisoning; Insulin

MeSH Terms

Calcium Channel Blockers
Calcium Channels*
Calcium*
Humans
Hypoglycemia
Hypokalemia
Insulin
Poisoning
Prospective Studies
Publication Bias
Publications
Research Personnel
Retrospective Studies
Calcium
Calcium Channel Blockers
Calcium Channels
Insulin
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