Preliminary report on prediction of spinal cord ischemia in endovascular stent graft repair of thoracic aortic aneurysm by retrievable stent graft Shin.

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Presentation transcript:

Preliminary report on prediction of spinal cord ischemia in endovascular stent graft repair of thoracic aortic aneurysm by retrievable stent graft Shin Ishimaru, MD, Satoshi Kawaguchi, MD, Nobusato Koizumi, MD, Yukio Obitsu, MD, Mikio Ishikawa, MD The Journal of Thoracic and Cardiovascular Surgery Volume 115, Issue 4, Pages 811-818 (April 1998) DOI: 10.1016/S0022-5223(98)70360-5 Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig. 1 The expanded Retriever. A, Proximal set of Z stent; B, distal set of Z stent; C, strut; D, expanded PTFE sheet; E, pushing rod. The Journal of Thoracic and Cardiovascular Surgery 1998 115, 811-818DOI: (10.1016/S0022-5223(98)70360-5) Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig. 2 A, Digital subtraction angiography of nonspecific inflammatory aneurysm located in the distal segments of the descending thoracic aorta in patient 2. B, Retriever placed through the aneurysm extending above and below it. C, Retriever retracted into a sheath after predeployment test for 21 minutes. The Journal of Thoracic and Cardiovascular Surgery 1998 115, 811-818DOI: (10.1016/S0022-5223(98)70360-5) Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig. 3 Self-expanding Z stents covered with ultrathin woven polyester fabric graft. The Journal of Thoracic and Cardiovascular Surgery 1998 115, 811-818DOI: (10.1016/S0022-5223(98)70360-5) Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig. 4 No changes in amplitude and latency of ESCP records were observed before and during Retriever placement in patient 2. BP, Mean systemic arterial pressure in millimeters of mercury. The Journal of Thoracic and Cardiovascular Surgery 1998 115, 811-818DOI: (10.1016/S0022-5223(98)70360-5) Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig. 5 In patient 2, amplitude of ESCP decreased to 40% of initial level when mean systemic arterial pressure (BP) was decreased below 70 mm Hg for 6 minutes, then recovered. There were no changes in ESCP after deployment of permanent stent graft. The Journal of Thoracic and Cardiovascular Surgery 1998 115, 811-818DOI: (10.1016/S0022-5223(98)70360-5) Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig. 6 Digital subtraction angiography of aneurysm excluded by stent graft deployment in patient 2. The Journal of Thoracic and Cardiovascular Surgery 1998 115, 811-818DOI: (10.1016/S0022-5223(98)70360-5) Copyright © 1998 Mosby, Inc. Terms and Conditions

Fig. 7 A, Enhanced computed tomography before stent graft deployment in patient 2. B, After placement of stent graft, no endoleaks were confirmed in the aneurysm. The Journal of Thoracic and Cardiovascular Surgery 1998 115, 811-818DOI: (10.1016/S0022-5223(98)70360-5) Copyright © 1998 Mosby, Inc. Terms and Conditions