ISSN : 1301-5680
e-ISSN : 2149-8156
Turkish Journal of Thoracic and Cardiovascular Surgery     
Early and mid-term results of surgical treatment of obstructive hypertrophic cardiomyopathy
Ertekin Utku Ünal, Anıl Özen, Hakkı Zafer İşcan, Cemal Levent Birincioğlu
Türkiye Yüksek İhtisas Eğitim ve Araştırma Hastanesi, Kalp ve Damar Cerrahisi Kliniği, Ankara, Türkiye
DOI : 10.5606/tgkdc.dergisi.2012.085
Background: In this study, we aimed to investigate whether septal myectomy is an effective treatment method in the patients with obstructive hypertrophic cardiomyopathy (HCM) and to evaluate early and mid-term results.

Methods: Between January 1997 and August 2008, 40 patients (23 males, 17 females; mean age 37.8±16.8 years; range 7 to 76 years) who underwent septal myectomy for HCM were retrospectively analyzed. The left ventricular outflow tract (LVOT) gradient and septum thickness were assessed using transthoracic echocardiography before and after surgery.

Results: The mean preoperative functional capacity of the patients was 2.4±0.5, the mean LVOT gradient was 97.7±27.6 mmHg and the mean interventricular septum thickness was 1.7±0.3 cm. Postoperative early mortality was 5%. The mean follow-up after septal myectomy was 41.9±33.0 months (range 2-130 months). During follow-up, the mean functional capacity (1.0±0.2), the mean LVOT gradient (19.1±10.2 mmHg) and the mean interventricular septum thickness (1.3±0.2 cm) were statistically significant, compared to the preoperative values (p<0.05).

Conclusion: The LVOT gradient may be relieved almost completely using septal myectomy, which is a safe and effective procedure, with satisfactory surgical mortality and morbidity rates and significant recovery of the functional capacity may be also achieved.

Keywords : Cardiac surgery; left ventricular outflow obstruction; obstructive hypertrophic cardiomyopathy
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