Anesthetic experience: congenital methemoglobinemia due to hemoglobin M
10.17245/jdapm.2021.21.5.471
- Author:
Hyunsu RI
1
;
Youngje PARK
;
Younghoon JEON
Author Information
1. Department of Anesthesiology and Pain Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea
- Publication Type:Case Report
- From:Journal of Dental Anesthesia and Pain Medicine
2021;21(5):471-474
- CountryRepublic of Korea
- Language:English
-
Abstract:
Methemoglobinemia is rare. It is classified into two types: congenital methemoglobinemia and acquired methemoglobinemia. Methemoglobin is incapable of binding oxygen, leading to complications such as cyanosis, dyspnea, headache, and heart failure. In the present case, a 35-year-old man with congenital methemoglobinemia underwent general anesthesia for thyroidectomy. The patient was diagnosed with hemoglobin M at 7 years of age. Ventilation was performed with FiO2 1.0. Arterial blood gas analysis showed that the pH was 7.4, PaO 2 439 mmHg, PaCO2 40.5 mmHg, oxyhemoglobin level of 83.2%, and methemoglobin level of 15.5%. The patient had a stable course, although cyanosis was observed during surgery.
