TAILIEUCHUNG - Endovascular Aneurysm Repair - part 10

Endovascular Điều trị các tổn thương động mạch chủ ngực Thể hiện để trở thành có lợi cho bệnh nhân nhờ xâm lấn tối thiểu và mắc bệnh STI thấp [1 ± 3]. Mặc dù thủ tục đơn giản và IS đã được hoàn thành kịp thời, có một số là những thách thức kỹ thuật. Các lực lượng đẩy đi mạnh mẽ của dòng chảy | 4 Partial inflow occlusion facilitates accurate deployment of thoracic aortic endografts Introduction Endovascular treatment of thoracic aortic lesions showed to be beneficial for patients thanks to its minimal invasiveness and low morbidity 1-3 . Though the procedure is straightforward and promptly accomplished there are some technical challenges. The strong propulsive forces of aortic flow at the thoracic level can interfere with the deployment of the device. In particular distal displacement is imminent in the presence of a windsock phenomenon created by delayed retraction of the sheath or by inflation of a large occluding balloon to achieve complete device expansion. Improvement in endoprosthetic equipment and creation of a period of controlled hypotension address this problem. Nowadays hypotension is mainly accomplished pharmacologically however the required dose of drug varies considerably and the duration of hypotension is limited and cannot immediately be prolonged in case of a technical problem. Cardiac preload reduction by balloon occlusion of the vena cava has been proposed as an effective means to lower blood pressure 4 5 . In the present study 6 partial inflow occlusion by interruption of the venous return through the inferior vena cava IVC was used as an adjunct to enhance precision in the placement of thoracic endoprostheses. Patients and methods From April 1998 to February 2002 twenty-one endovascular procedures in twenty patients 15 men mean age 60 18 years were performed. All endoprostheses were deployed using partial inflow occlusion. Written informed consent was obtained from the patients. Reprinted with permission from the International Society of Endovascular Specialists Journal of Endovascular Therapy 2004 11 175-179 124 I Clinical applications Two different first- and second-generation endoprostheses were used. Fourteen patients were treated with eighteen Talent stent-graft systems Medtronic AVE Sunrise Fla a self-expandable device with a .

Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.