tailieunhanh - Báo cáo y học: "Variety of transversus thoracis muscle in relation to the internal thoracic artery: an autopsy study of 120 subjects"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Variety of transversus thoracis muscle in relation to the internal thoracic artery: an autopsy study of 120 subjects. | Jelev et al. Journal of Cardiothoracic Surgery 2011 6 11 http content 6 1 11 JCTS JOURNAL OF CARDIOTHORACIC SURGERY RESEARCH ARTICLE Open Access Variety of transversus thoracis muscle in relation to the internal thoracic artery an autopsy study of 120 subjects Lazar Jelev1 Stanislav Hristov2 Wladimir Ovtscharoff1 Abstract Background The transversus thoracis muscle is a thin muscular layer on the inner surface of the anterior thoracic wall that is always in concern during harvesting of the internal thoracic artery. Because the muscle is poorly described in the surgical literature the aim of the present study is to examine in details its variations. Methods The data was obtained at standard autopsies of 120 Caucasian subjects Bulgarians of both sexes 97 males and 23 females ranging in age from 18 to 91 years mean age years . The transversus thoracis morphology was thoroughly examined on the inner surface of the chest plates collected after routine incisions. Results An overall examination revealed that in majority of cases the transversus thoracis slips formed a complete muscular layer left - right - or some of the slips left - right - 15 or all of them left - right - were quite separated. Rarely left - right - some fibrous slips of the transversus thoracis were noted. In of the cases there was left right muscle symmetry of the muscles were asymmetrical. Most commonly the highest muscle attachment was to the second left - right - or third rib left right - . The sixth rib was the most common lowest attachment left - right - . Most frequently the muscle was composed of four left - right - or fifth slips left - right - . Conclusions This study provides detailed basic information on the variety of the transversus thoracic muscle. It also defines the range of the clearly visible uncovered by the muscle part of the internal thoracic artery and