Abstract
Vasoplegic syndrome occurs in $8{\sim}10%$ of patients following cardiac surgery, and this happens in part because of inducing the inflammatory response. Nitric oxide and guanylate cyclase play an important role in this response, and this is associated with increased morbidity and mortality. For our case, we administered methylene blue (MB), an inhibitor of guanylate cyclase, early after performing cardiopulmonary bypass in a patient with vasoplegic syndrome. The patient recovered immediately after MB administration and maintained an optimal blood pressure without the aid help of any vasopressors.
Vasoplegic syndrome은 심장 수술 후 $8{\sim}10%$의 빈도로 발생하고, nitric oxide와 guanylate cyclase가 중요 역할을 하는 염증반응에 유도함에 기인하며, 높은 사망률과 유병률을 나타낸다. 본 증례에서는 수술 전 패혈증이 있던 환자에서 심폐순환 후 vasoplegenic syndrome이 발생하였다. Gguanylate cyclase 억제제인 메틸렌 블루(MB)를 투여하여 환자는 즉시 호전을 보였으며 어떠한 혈압수축제의 도움 없이도 적절한 혈압을 유지할 수 있었기에 보고한다.
