Dapsone Induced Methaemoglobinemia: Early Intraoperative Detection by Pulse Oximeter Desaturation

Several drugs cause methaemoglobinemia which can lead to pulse oximeter desaturation and hypoxemia.Children with immune thrombocytopenic purpura are being treated with dapsone which is known to cause methaemoglobinemia and many of these can be planned for elective splenectomy. Preoperative knowledge...

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Main Authors: Mahmood Rafiq, Abdul Qayoom Dar, Shagufta Qazi
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2008-01-01
Series:Indian Journal of Anaesthesia
Subjects:
Online Access:http://www.ijaweb.org/article.asp?issn=0019-5049;year=2008;volume=52;issue=2;spage=208;epage=208;aulast=Rafiq
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author Mahmood Rafiq
Abdul Qayoom Dar
Shagufta Qazi
author_facet Mahmood Rafiq
Abdul Qayoom Dar
Shagufta Qazi
author_sort Mahmood Rafiq
collection DOAJ
description Several drugs cause methaemoglobinemia which can lead to pulse oximeter desaturation and hypoxemia.Children with immune thrombocytopenic purpura are being treated with dapsone which is known to cause methaemoglobinemia and many of these can be planned for elective splenectomy. Preoperative knowledge of drug intake and their adverse effects is essential so is the early detection of the cause of intraoperative hypoxemia and the remedial measures taken. We present a child on dapsone therapy for treatment of immune thrombocytopenic purpura planned for elective splenec-tomy developed intraoperative pulseoximeter desaturation. The cause of desaturation was identified as methaemoglobinemia caused by dapsone therapy. Case signifies the importance of knowledge of any preoperative drug intake and its anaesthetic implications. Also patients on dapsone therapy especially children should be monitored for methaemoglobin levels. Since children with immune thrombocy-topenic purpura are being treated with dapsone these days and many of these patients would be planned for splenectomy, monitoring of preoperative methaemoglobin levels and methaemoglobinemia as a cause of intraoperative pulse oximeter desaturation should be kept in mind.
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spelling doaj.art-1c46c0413ae447449e66a1c5fe6476bc2022-12-22T00:33:00ZengWolters Kluwer Medknow PublicationsIndian Journal of Anaesthesia0019-50492008-01-01522208208Dapsone Induced Methaemoglobinemia: Early Intraoperative Detection by Pulse Oximeter DesaturationMahmood RafiqAbdul Qayoom DarShagufta QaziSeveral drugs cause methaemoglobinemia which can lead to pulse oximeter desaturation and hypoxemia.Children with immune thrombocytopenic purpura are being treated with dapsone which is known to cause methaemoglobinemia and many of these can be planned for elective splenectomy. Preoperative knowledge of drug intake and their adverse effects is essential so is the early detection of the cause of intraoperative hypoxemia and the remedial measures taken. We present a child on dapsone therapy for treatment of immune thrombocytopenic purpura planned for elective splenec-tomy developed intraoperative pulseoximeter desaturation. The cause of desaturation was identified as methaemoglobinemia caused by dapsone therapy. Case signifies the importance of knowledge of any preoperative drug intake and its anaesthetic implications. Also patients on dapsone therapy especially children should be monitored for methaemoglobin levels. Since children with immune thrombocy-topenic purpura are being treated with dapsone these days and many of these patients would be planned for splenectomy, monitoring of preoperative methaemoglobin levels and methaemoglobinemia as a cause of intraoperative pulse oximeter desaturation should be kept in mind.http://www.ijaweb.org/article.asp?issn=0019-5049;year=2008;volume=52;issue=2;spage=208;epage=208;aulast=RafiqMethaemoglobinemia; Dapsone; Idiopathic thrombocytopenic purpura
spellingShingle Mahmood Rafiq
Abdul Qayoom Dar
Shagufta Qazi
Dapsone Induced Methaemoglobinemia: Early Intraoperative Detection by Pulse Oximeter Desaturation
Indian Journal of Anaesthesia
Methaemoglobinemia; Dapsone; Idiopathic thrombocytopenic purpura
title Dapsone Induced Methaemoglobinemia: Early Intraoperative Detection by Pulse Oximeter Desaturation
title_full Dapsone Induced Methaemoglobinemia: Early Intraoperative Detection by Pulse Oximeter Desaturation
title_fullStr Dapsone Induced Methaemoglobinemia: Early Intraoperative Detection by Pulse Oximeter Desaturation
title_full_unstemmed Dapsone Induced Methaemoglobinemia: Early Intraoperative Detection by Pulse Oximeter Desaturation
title_short Dapsone Induced Methaemoglobinemia: Early Intraoperative Detection by Pulse Oximeter Desaturation
title_sort dapsone induced methaemoglobinemia early intraoperative detection by pulse oximeter desaturation
topic Methaemoglobinemia; Dapsone; Idiopathic thrombocytopenic purpura
url http://www.ijaweb.org/article.asp?issn=0019-5049;year=2008;volume=52;issue=2;spage=208;epage=208;aulast=Rafiq
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AT abdulqayoomdar dapsoneinducedmethaemoglobinemiaearlyintraoperativedetectionbypulseoximeterdesaturation
AT shaguftaqazi dapsoneinducedmethaemoglobinemiaearlyintraoperativedetectionbypulseoximeterdesaturation