Topical anesthesia-induced methemoglobinemia in bariatric surgery patients

Methemoglobinemia leads to rapid oxygen desaturation, requiring prompt recognition and treatment. We present two severely obese patients who developed methemoglobinemia following the use of topical or local anesthetic. This complication was detected by analysis of arterial blood gases, and was succe...

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Bibliographic Details
Published in:Obesity surgery 2005-02, Vol.15 (2), p.282-285
Main Authors: Carrodeguas, Lester, Szomstein, Samuel, Jacobs, Jeffrey, Arias, Fernando, Antozzi, Priscila, Soto, Flavia, Zundel, Natan, Whipple, Oliver, Simpfendorfer, Conrad, Gordon, Richard, Villares, Alexander, Rosenthal, Raul J
Format: Article
Language:English
Subjects:
Anastomosis, Roux-en-Y
Anesthesia, Local - adverse effects
Anesthesia, Local - methods
Blood Gas Analysis
Body Mass Index
Female
Gastric Bypass - methods
Gastrointestinal surgery
Humans
Methemoglobinemia - chemically induced
Methemoglobinemia - physiopathology
Methylene Blue - therapeutic use
Middle Aged
Obesity
Obesity, Morbid - diagnosis
Obesity, Morbid - surgery
Oxygen - therapeutic use
Prognosis
Risk Assessment
Treatment Outcome
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Summary:Methemoglobinemia leads to rapid oxygen desaturation, requiring prompt recognition and treatment. We present two severely obese patients who developed methemoglobinemia following the use of topical or local anesthetic. This complication was detected by analysis of arterial blood gases, and was successfully treated with methylene blue i.v. and 100% O2 supplementation.
ISSN:0960-8923
1708-0428
DOI:10.1381/0960892053268525