Saranya LertkovitPatchareya NivatpuminSiriraj Hospital2022-08-042022-08-042021-11-01Journal of Health Science and Medical Research. Vol.39, No.6 (2021), 509-51526300559258699812-s2.0-85115071153https://repository.li.mahidol.ac.th/handle/20.500.14594/77732Tetralogy of Fallot (TOF) is the most common, cyanotic congenital heart disease. The hemodynamic changes during pregnancy, with uncorrected TOF, result in serious, life-threatening complications for both patient and baby. The authors report on the successful anesthetic management of a 26-year-old parturient women. The patient was at a gestational age of 33 weeks, with uncorrected TOF. After undergoing a cesarean delivery, she developed intraoperative hypoxia after delivery. We postulated that the patient developed hypoxic Tet spells from hypovolemia, resulting from postpartum bleeding as well as a decrease in her systemic vascular resistance from oxytocin. A multidisciplinary team approach and invasive intraoperative monitoring together with meticulous anesthetic management, were essential for this patient.Mahidol UniversityMedicineArticleSCOPUS10.31584/jhsmr.2021801