Abstract BackgroundPheochromocytoma is a rare catecholamine-secreting tumor. To evaluate the intraoperative hemodynamics with precision is difficult.Case presentationA 42-year-old man, who suddenly developed a life-threatening pheochromocytoma multisystem crisis that occurred during preoperative prophylactic medication, underwent urgent bilateral adrenalectomy. For the purpose of evaluating the intraoperative hemodynamics, we monitored both pulmonary artery catheter-based cardiac output (PACO) and arterial pressure-based cardiac output (APCO; FloTrac?). APCO fluctuated in poor agreement with the change in PACO, especially in the state of cytokine storming.ConclusionsOverall, the value of stroke volume variation derived from FloTrac? changed in tandem with the intraoperative volume status, indicating its utility as a marker of circulatory hemodynamics.
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