Postoperative Heart Failure with Preserved Ejection Fraction Induced by Flumazenil Administered for Remimazolam Antagonism

Remimazolam is an ultrashort-acting benzodiazepine intravenous anesthetic characterized by rapid awakening after anesthesia. However, the method for administering remimazolam in clinical practice remains unclear. Here, we report a case of postoperative heart failure with preserved ejection fraction...

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Main Authors: Keito Koh, Takeshi Omae, Sonoko Sakuraba, Masateru Kumemura, Sho Yamazaki, Hiroshi Yunoki
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Case Reports in Anesthesiology
Online Access:http://dx.doi.org/10.1155/2022/8923008
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author Keito Koh
Takeshi Omae
Sonoko Sakuraba
Masateru Kumemura
Sho Yamazaki
Hiroshi Yunoki
author_facet Keito Koh
Takeshi Omae
Sonoko Sakuraba
Masateru Kumemura
Sho Yamazaki
Hiroshi Yunoki
author_sort Keito Koh
collection DOAJ
description Remimazolam is an ultrashort-acting benzodiazepine intravenous anesthetic characterized by rapid awakening after anesthesia. However, the method for administering remimazolam in clinical practice remains unclear. Here, we report a case of postoperative heart failure with preserved ejection fraction (HFpEF) after antagonizing remimazolam with flumazenil. An 82-year-old woman was scheduled to undergo lumbar laminectomy for lumbar spinal canal stenosis. Preoperative echocardiography revealed normal left ventricular systolic function, left atrial enlargement, and impaired left ventricular diastolic function. General anesthesia was induced with 10 mg/kg/h remimazolam and maintained with 0.8 mg/kg/h remimazolam intraoperatively. Before extubation, a total of 1.0 mg of flumazenil was administered. After extubation, the patient developed pulmonary edema due to HFpEF. When remimazolam is administered in elderly patients with cardiac dysfunction, the maintenance dose should be customized according to the patient’s general condition to minimize the dosage of flumazenil.
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series Case Reports in Anesthesiology
spelling doaj-art-4715a9231e5e4dfb84e41b492e039d452025-08-20T02:39:20ZengWileyCase Reports in Anesthesiology2090-63902022-01-01202210.1155/2022/8923008Postoperative Heart Failure with Preserved Ejection Fraction Induced by Flumazenil Administered for Remimazolam AntagonismKeito Koh0Takeshi Omae1Sonoko Sakuraba2Masateru Kumemura3Sho Yamazaki4Hiroshi Yunoki5Department of Anesthesiology and Pain MedicineDepartment of Anesthesiology and Pain MedicineDepartment of Anesthesiology and Pain MedicineDepartment of Anesthesiology and Pain MedicineDepartment of Anesthesiology and Pain MedicineDepartment of AnesthesiologyRemimazolam is an ultrashort-acting benzodiazepine intravenous anesthetic characterized by rapid awakening after anesthesia. However, the method for administering remimazolam in clinical practice remains unclear. Here, we report a case of postoperative heart failure with preserved ejection fraction (HFpEF) after antagonizing remimazolam with flumazenil. An 82-year-old woman was scheduled to undergo lumbar laminectomy for lumbar spinal canal stenosis. Preoperative echocardiography revealed normal left ventricular systolic function, left atrial enlargement, and impaired left ventricular diastolic function. General anesthesia was induced with 10 mg/kg/h remimazolam and maintained with 0.8 mg/kg/h remimazolam intraoperatively. Before extubation, a total of 1.0 mg of flumazenil was administered. After extubation, the patient developed pulmonary edema due to HFpEF. When remimazolam is administered in elderly patients with cardiac dysfunction, the maintenance dose should be customized according to the patient’s general condition to minimize the dosage of flumazenil.http://dx.doi.org/10.1155/2022/8923008
spellingShingle Keito Koh
Takeshi Omae
Sonoko Sakuraba
Masateru Kumemura
Sho Yamazaki
Hiroshi Yunoki
Postoperative Heart Failure with Preserved Ejection Fraction Induced by Flumazenil Administered for Remimazolam Antagonism
Case Reports in Anesthesiology
title Postoperative Heart Failure with Preserved Ejection Fraction Induced by Flumazenil Administered for Remimazolam Antagonism
title_full Postoperative Heart Failure with Preserved Ejection Fraction Induced by Flumazenil Administered for Remimazolam Antagonism
title_fullStr Postoperative Heart Failure with Preserved Ejection Fraction Induced by Flumazenil Administered for Remimazolam Antagonism
title_full_unstemmed Postoperative Heart Failure with Preserved Ejection Fraction Induced by Flumazenil Administered for Remimazolam Antagonism
title_short Postoperative Heart Failure with Preserved Ejection Fraction Induced by Flumazenil Administered for Remimazolam Antagonism
title_sort postoperative heart failure with preserved ejection fraction induced by flumazenil administered for remimazolam antagonism
url http://dx.doi.org/10.1155/2022/8923008
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AT sonokosakuraba postoperativeheartfailurewithpreservedejectionfractioninducedbyflumazeniladministeredforremimazolamantagonism
AT masaterukumemura postoperativeheartfailurewithpreservedejectionfractioninducedbyflumazeniladministeredforremimazolamantagonism
AT shoyamazaki postoperativeheartfailurewithpreservedejectionfractioninducedbyflumazeniladministeredforremimazolamantagonism
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