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- W2358771675 abstract "Objective To analyze the definition,clinical characteristics and surgical treatments of latent hypertrophic obstructive cardiomyopathy( LHOCM),and to summarize the preoperative diagnostic value for LHOCM by exercise stimulating experiment so as to improve the diagnosis.Methods Clinical data of 14 patients with LHOCM,who had undergone surgical treatments during October 2009 and September 2013 was retrospectively analyzed.Results All the patients had different degrees of oppression in the chest,shortness of breath,sternum rough and systolic murmur in the left border.Cardiac color Doppler examinations of all the patients showed myocardial dissymmetry hypertrophy,average( 39.0 ± 10.1) mmHg of left ventricular outflow tract pressure gradient pressure( LVOTGP) and( 55-124) mmHg of LVOTGP after exercise stimulating experiment.All the patients underwent transaortic left ventricular extended septal myectomy under general anesthesia and hypothermia extracorporeal circulation,and mitral valve replacement and coronary artery bypass graft( CABG) as a combined procedure were respectively carried out in 1 patient.No perioperative deaths or severe complications were recorded,and postoperative color Doppler showed microscale or a little amount of mitral regurgitation.Postoperative average LVOTGP of patients was( 12.75 ±5.9) mmHg except for patients with exterior valve replacement surgery,and the differences before and after the operation were statistically significant( P 0.01).All the patients were followed up for an average of 12 months.Clinical manifestations of LHOCM disappeared,and quality of life was improved with gradeⅠ- Ⅱ heart function.During the follow-up,there were no long-term deaths,complications or reinterventions.Conclusion LHOCM is symptomatic non-obstructive HOCM,which developed left ventricular outflow tract obstruction( LVOTO) under excited state of exercise and drugs,but LVOTGP of patients with LHOCM is normal as shown by color Doppler examination under quiescent condition without surgical intervention.Exercise stimulating experiment is helpful in diagnosing HOCM,and transaortic left ventricular extended septal myectomy may achieve satisfactory effectiveness in early metaphase." @default.
- W2358771675 created "2016-06-24" @default.
- W2358771675 creator A5052009687 @default.
- W2358771675 date "2014-01-01" @default.
- W2358771675 modified "2023-09-26" @default.
- W2358771675 title "Stress Echocardiography after Exercise Stimulating Experiment in Surgical Treatment of Latent Hypertrophic Obstructive Cardiomyopathy" @default.
- W2358771675 hasPublicationYear "2014" @default.
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