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Korean Journal of Anesthesiology 2008;54(4):469-472.
DOI: https://doi.org/10.4097/kjae.2008.54.4.469   
Hyperkalemia after Cessation of Ritodrine in a Parturient during Cesarean Section: A case report.
Ji Sook Kwon, Guie Yong Lee, Jong In Han, Rack Kyung Chung
Department of Anesthesiology and Pain Medicine, Ewha Womans University School of Medicine, Seoul, Korea. lgyanes@mm.ewha.ac.kr
Ritodrine hydrochloride is widely used for the treatment of premature uterine contraction because the drug has beta2-sympathomimetic effect on the uterus. Hypokalemia is one of the most common side effects of ritodrine. We experienced a case of hyperkalemia without ECG change that occurred during cesarean section in a healthy parturient, associated with low-dose ritodrine pretreatment for six and half hours to stop preterm labor. We treated the patient with potassium-free fluid and calcium chloride. Plasma potassium level returned to normal four hours after the ritodrine had been terminated.
Key Words: hyperkalemia; preterm labor; ritodrine


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