Surgery for Left Ventricular Outflow Tract Obstruction with a Relatively Thin Interventricular Septum

Shingu, Yasushige; Sugiki, Hiroshi; Ooka, Tomonori; Kato, Hiroki; Wakasa, Satoru; Tachibana, Tsuyoshi; Matsui, Yoshiro

Surgery for Left Ventricular Outflow Tract Obstruction with a Relatively Thin Interventricular Septum

Shingu, Yasushige; Sugiki, Hiroshi; Ooka, Tomonori et al.

The Thoracic and cardiovascular surgeon, 2018, 66(04), 307-312

Permalink : https://hdl.handle.net/2115/71265

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アクセス権	open access
URI	https://hdl.handle.net/2115/71265
タイトル	Surgery for Left Ventricular Outflow Tract Obstruction with a Relatively Thin Interventricular Septum
著者	Shingu, Yasushige ; Sugiki, Hiroshi ; Ooka, Tomonori ; Kato, Hiroki ; Wakasa, Satoru ; Tachibana, Tsuyoshi ; Matsui, Yoshiro
e-Rad_Researcher 30617064 著者名 Shingu, Yasushige
著者名 Sugiki, Hiroshi
e-Rad_Researcher 60507573 著者名 Ooka, Tomonori
著者名 Kato, Hiroki
e-Rad_Researcher 10374365 著者名 Wakasa, Satoru
著者名 Tachibana, Tsuyoshi
e-Rad_Researcher 90219379 著者名 Matsui, Yoshiro
言語	英語
キーワード	cardiomyopathy
	mitral valve surgery
	systolic anterior motion
発行日	2018-06
出版者	Georg Thieme Verlag
収録物名	The Thoracic and cardiovascular surgeon
巻(号)	66(04)
ページ	307-312
抄録	Background: To examine the results of myectomy and mitral valve surgery for systolic anterior motion (SAM) of the mitral valve and left ventricular outflow tract obstruction (LVOTO) with a relatively thin interventricular septum. Methods: The subjects were 12 patients with SAM and LVOTO. Eight had hypertrophic obstructive cardiomyopathy (HOCM) with a mean interventricular septal thickness of 16 mm. Three had sigmoid septum and one had an unknown etiology. For HOCM, isolated extended myectomy was performed when mitral regurgitation was mild (n = 1) and extended myectomy plus mitral valve surgery was performed when mitral regurgitation was more than mild (n = 4) or primary valve etiologies existed (n = 3). Myectomy was performed for the three cases with sigmoid septum. Myectomy plus height reduction of the posterior mitral leaflet was performed for the one case with the unknown etiology of SAM. Results: In the patients with HOCM, the maximum LVOT pressure gradient significantly decreased from 140 ± 18 to 16 ± 6 and 3 ± 3 mm Hg, while mitral regurgitation significantly decreased from 2.3 ± 0.5 to 0.5 ± 0.3 and 0.4 ± 0.2 at pre-op, early post-op, and last follow-up (3 ± 1 years), respectively. In the other etiologies, the maximum LVOT pressure gradient changed from 56 ± 15 to 25 ± 15 and 5 ± 4 mm Hg; mitral regurgitation changed from 2.0 ± 0.6 to 1.3 ± 0.3 and 1.3 ± 0.8, at pre-op, early post-op, and the last follow-up (3 ± 2 years), respectively. Conclusion: Myectomy with mitral valve surgery is an option for SAM and LVOTO in patients with a relatively thin interventricular septum.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This is an Accepted Manuscript of an article published by Thieme Publishing Group in Journal Title on Publication Date, available online at https://www.thieme-connect.de/products/ejournals/abstract/10.1055/s-0035-1570748
PISSN	0171-6425
関連情報	PMID 26757211
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1055/s-0035-1570748