Hypotension and bradycardia before spinal anesthesia

I report a case of hypotension and bradycardia before spinal anesthesia in a pregnant woman with mild to moderate hypertension treated with nifedipine and methyldopa, scheduled for an elective cesarean delivery. She had the history of neurally-mediated syncopes. Two main factors (increased vagal ton...

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Main Author: Carlos Javier Shiraishi Zapata
Format: Article
Language:English
Published: Elsevier 2017-09-01
Series:Brazilian Journal of Anesthesiology
Online Access:http://www.sciencedirect.com/science/article/pii/S0104001415001232
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spelling doaj-fc9278a68a344bf4ac9812fdfd4192262020-11-24T23:30:57ZengElsevierBrazilian Journal of Anesthesiology0104-00142017-09-01675535537Hypotension and bradycardia before spinal anesthesiaCarlos Javier Shiraishi Zapata0Hospital ESSALUD Talara, Servicio de Centro Quirúrgico y Anestesiología, Piura, PeruI report a case of hypotension and bradycardia before spinal anesthesia in a pregnant woman with mild to moderate hypertension treated with nifedipine and methyldopa, scheduled for an elective cesarean delivery. She had the history of neurally-mediated syncopes. Two main factors (increased vagal tone and adverse effects of antihypertensive drugs) could explain the hypotension and bradycardia before spinal anesthesia. Monitoring allowed recognizing the problem and corrected it. Thus, it was avoided a disaster in anesthesia, as hemodynamic changes after spinal anesthesia, they would have joined to previous hypotension and bradycardia, which would have caused even a cardiac arrest. Resumo: Relato de um caso de hipotensão e bradicardia antes da raquianestesia em uma mulher grávida com hipertensão leve a moderada tratada com nifedipina e metildopa, programada para parto cesário eletivo. A paciente apresentava história de síncopes neuralmente mediadas. Dois fatores principais (aumento do tônus vagal e efeitos adversos de medicamentos anti-hipertensivos) poderiam explicar a hipotensão e bradicardia antes da raquianestesia. O monitoramento permitiu reconhecer o problema e corrigi-lo. Assim, foi evitado um desastre em anestesia; assim como as alterações hemodinâmicas após a raquianestesia, esses fatores teriam se juntado à hipotensão e bradicardia anterior, o que poderia ter causado inclusive uma parada cardíaca. Keywords: Hypotension, Bradycardia, Vagal tone, Antihypertensives drugs, Palavras-chave: Hipotensão, Bradicardia, Tônus vagal, Medicamentos anti-hipertensivoshttp://www.sciencedirect.com/science/article/pii/S0104001415001232
collection DOAJ
language English
format Article
sources DOAJ
author Carlos Javier Shiraishi Zapata
spellingShingle Carlos Javier Shiraishi Zapata
Hypotension and bradycardia before spinal anesthesia
Brazilian Journal of Anesthesiology
author_facet Carlos Javier Shiraishi Zapata
author_sort Carlos Javier Shiraishi Zapata
title Hypotension and bradycardia before spinal anesthesia
title_short Hypotension and bradycardia before spinal anesthesia
title_full Hypotension and bradycardia before spinal anesthesia
title_fullStr Hypotension and bradycardia before spinal anesthesia
title_full_unstemmed Hypotension and bradycardia before spinal anesthesia
title_sort hypotension and bradycardia before spinal anesthesia
publisher Elsevier
series Brazilian Journal of Anesthesiology
issn 0104-0014
publishDate 2017-09-01
description I report a case of hypotension and bradycardia before spinal anesthesia in a pregnant woman with mild to moderate hypertension treated with nifedipine and methyldopa, scheduled for an elective cesarean delivery. She had the history of neurally-mediated syncopes. Two main factors (increased vagal tone and adverse effects of antihypertensive drugs) could explain the hypotension and bradycardia before spinal anesthesia. Monitoring allowed recognizing the problem and corrected it. Thus, it was avoided a disaster in anesthesia, as hemodynamic changes after spinal anesthesia, they would have joined to previous hypotension and bradycardia, which would have caused even a cardiac arrest. Resumo: Relato de um caso de hipotensão e bradicardia antes da raquianestesia em uma mulher grávida com hipertensão leve a moderada tratada com nifedipina e metildopa, programada para parto cesário eletivo. A paciente apresentava história de síncopes neuralmente mediadas. Dois fatores principais (aumento do tônus vagal e efeitos adversos de medicamentos anti-hipertensivos) poderiam explicar a hipotensão e bradicardia antes da raquianestesia. O monitoramento permitiu reconhecer o problema e corrigi-lo. Assim, foi evitado um desastre em anestesia; assim como as alterações hemodinâmicas após a raquianestesia, esses fatores teriam se juntado à hipotensão e bradicardia anterior, o que poderia ter causado inclusive uma parada cardíaca. Keywords: Hypotension, Bradycardia, Vagal tone, Antihypertensives drugs, Palavras-chave: Hipotensão, Bradicardia, Tônus vagal, Medicamentos anti-hipertensivos
url http://www.sciencedirect.com/science/article/pii/S0104001415001232
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