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KMID : 0356920070530020242
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Korean Journal of Anesthesiology
2007 Volume.53 No. 2 p.242 ~ p.245
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Perioperative Hypotension due to Systolic Anterior Motion of the Mitral Valve with Left Ventricular Outflow Track Obstruction during Off-Pump Coronary Artery Bypass Surgery
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Seol Tai-Kyung
Lee Jong-Hwan
Yoon Seung-Zhoo
Jeon Yun-Seok
Bahk Jae-Hyon
Kim Ki-Bong
Kim Chong-Sung
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Abstract
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Systolic anterior motion of the mitral valve (SAM) is well known in the concentric left ventricular hypertrophy or post mitral valvuloplasty. However, SAM has not been reported in Off-pump coronary artery bypass surgery (OPCAB). Preoperatively, SAM in combination with a left ventricular outflow tract obstruction leads to severe cardiovascular destabilization. Moreover, a diagnosis of SAM is very important because the administration of conventional therapy to hypotension can aggravate SAM. We report a patient with un-identified left ventricular wall hypertrophy or mitral valve regurgitation, who was diagnosed with SAM by TEE during OPCAB. This report describes the diagnostic and therapeutic strategies for the perioperative management of SAM.
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KEYWORD
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hypotension, off-pump coronary artery bypass surgery, systolic anterior motion of mitral leaflet
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