Dynamic left ventricular outflow tract obstruction without basal septal hypertrophy, caused by catecholamine therapy and volume depletion.
10.3904/kjim.2008.23.2.106
- Author:
Ji Hyun YANG
1
;
Seung Woo PARK
;
Jeong Hoon YANG
;
Sung Won CHO
;
Hyo Song KIM
;
Kyoung A CHOI
;
Ho Joong KIM
Author Information
1. Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. swpark@smc.samsung.co.kr
- Publication Type:Case Report
- Keywords:
Left ventricular outflow obstruction;
Catecholamines
- MeSH:
Catecholamines/*adverse effects;
Heart Septum;
Humans;
Hypertrophy;
Hypovolemia/chemically induced/*complications;
Male;
Middle Aged;
*Plasma Volume;
Ventricular Outflow Obstruction/*chemically induced/etiology
- From:The Korean Journal of Internal Medicine
2008;23(2):106-109
- CountryRepublic of Korea
- Language:English
-
Abstract:
Hypertrophic cardiomyopathy (HCM) with hypertrophy of the basal septum is the most common etiology of left ventricular outflow tract (LVOT) obstruction. In this article, we report the case of a patient with a structurally normal heart who developed hemodynamic deterioration due to severe LVOT obstruction following treatment with catecholamines. Hypovolemia accompanied with a hyperdynamic condition, resulting from catecholamine treatment, may cause dynamic LVOT obstruction due to the systolic anterior motion of the mitral valve leaflet. The solution for this is early recognition and correction of aggravating factors such as, withdrawal of catecholamine therapy and volume replacement.
