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abdominal aortic dissection

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https://www.readbyqxmd.com/read/29421419/contemporary-results-of-endovascular-repair-of-isolated-abdominal-aortic-dissection-with-unibody-bifurcated-stent-grafts
#1
Min Zhou, Hai Cai, Zhonghua Li, Yepeng Zhang, Zhao Liu, Hanfei Tang, Tong Qiao, ChangJian Liu
OBJECTIVES: To report the midterm safety and efficacy of the Aegis™-B (Microport, Shanghai, China) unibody bifurcated stent-graft for endovascular treatment of isolated abdominal aortic dissection (IAAD). BACKGROUND: Isolated abdominal aorta dissection (IAAD) is a rare event. Endovascular stent grafts seem to offer an efficient therapeutic approach to treating IAAD. However, the relatively small diameter of the infrarenal aorta and aortic bifurcation remains the main anatomical limitation to endovascular repair...
February 5, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29415372/one-stage-replacement-of-the-aorta-from-arch-to-thoracoabdominal-region
#2
Takashi Matsueda, Yuki Ikeno, Koki Yokawa, Yojiro Koda, Soichiro Henmi, Takeshi Inoue, Hiroshi Tanaka, Yutaka Okita
OBJECTIVES: We present our experience with one-stage replacement of thoracic aneurysm from the ascending aorta to the thoracoabdominal aorta. PATIENTS AND METHODS: Fourteen patients (10 male and 4 female; mean age 53.6 ± 12.4 years) with extended thoracic aortic aneurysms underwent graft replacement. The pathology of the diseased aorta was chronic aortic dissection in 13 patients and intraoperative retrograde aortic dissection in 1 patient. Five patients had Marfan syndrome...
February 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29415193/ten-year-experience-of-the-thoraco-abdominal-aortic-aneurysm-treatment-using-a-hybrid-thoracic-endovascular-aortic-repair
#3
Takashi Shuto, Tomoyuki Wada, Shinji Miyamoto, Noritaka Kamei, Norio Hongo, Hiromu Mori
OBJECTIVES: The treatment of thoraco-abdominal aortic aneurysm continues to have a high mortality and paraplegia rate. In superaging societies, the methods of performing less invasive operations remain a major issue. We reviewed our 10-year experience in the treatment of thoraco-abdominal aortic aneurysm using a hybrid procedure of combined visceral reconstruction and thoracic endovascular aortic repair. METHODS: Sixty patients underwent a hybrid repair for the treatment of the thoraco-abdominal aortic aneurysm between 2007 and 2016...
February 2, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29404804/variation-in-emergency-department-use-of-computed-tomography-for-investigation-of-acute-aortic-dissection
#4
Robert Ohle, Omar Anjum, Helena Bleeker, George Wells, Jeffrey J Perry
INTRODUCTION: Acute aortic dissection (AAD) is a life-threatening condition making early diagnosis critical. Although 90% present with acute pain, the myriad of associated symptoms can make diagnosis a challenge. Our objective was to assess how we are using computed tomography to rule out acute aortic dissection specifically rate of ordering, diagnostic yield, and variation in practice. METHODS: We included consecutive adult patients presenting to two tertiary academic care emergency departments over one calendar year presenting with non-traumatic chest, back, abdominal, or flank pain...
February 5, 2018: Emergency Radiology
https://www.readbyqxmd.com/read/29398314/infrarenal-aortic-repair-with-or-without-false-lumen-intentional-placement-of-endografts-for-hybrid-management-of-complex-aortic-dissection
#5
William J Quinones-Baldrich, Taimur Saleem, Adam Oskowitz
OBJECTIVE: Aortic dissection (AD) often involves the infrarenal aorta. We review our experience with open infrarenal aortic repair with or without false lumen intentional placement (FLIP) of endografts in the proximal dissected aorta as part of a hybrid strategy to treat complex AD. METHODS: A prospectively maintained database of patients undergoing intervention for AD was reviewed. Data regarding diagnosis, imaging features, nature of the infrarenal repair (one- vs two-stage procedure), endoleaks, need for additional interventions, morbidity, and mortality were collected...
February 2, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29396472/propagation-based-phase-contrast-synchrotron-imaging-of-aortic-dissection-in-mice-from-individual-elastic-lamella-to-3d-analysis
#6
Gerlinde Logghe, Bram Trachet, Lydia Aslanidou, Pablo Villaneuva-Perez, Julie De Backer, Nikolaos Stergiopulos, Marco Stampanoni, Hiroki Aoki, Patrick Segers
In order to show the advantage and potential of propagation-based phase-contrast synchrotron imaging in vascular pathology research, we analyzed aortic medial ruptures in BAPN/AngII-infused mice, a mouse model for aortic dissection. Ascending and thoraco-abdominal samples from n = 3 control animals and n = 10 BAPN/AngII-infused mice (after 3, 7 and 14 days of infusion, total of 24 samples) were scanned. A steep increase in the number of ruptures was already noted after 3 days of BAPN/AngII-infusion...
February 2, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29394658/-surgical-dissection-for-an-abdominal-para-aortic-lymph-node-recurrence-after-curative-resection-for-early-gastric-cancer-report-of-a-case
#7
Hidetoshi Gon, Yuya Nogi, Jun Arima, Daiki Okamoto, Masataka Fujikawa, Naoki Urakawa, Atsushi Takebe, Makoto Shinzeki, Kenichi Tanaka
A 72-year-old man underwent endoscopic submucosal dissection for early gastric cancer at antrum in July 2015. The histopathological examination revealed an adenocarcinoma invading the deep submucosal layer(SM2)with lymphatic invasion, consistent with the diagnosis of non-curative resection. Additional surgery was recommended, and he underwent laparoscopic distal gastrectomy in August 2015. The histopathological examination of resected specimen revealed there were no lymph node metastases, and postoperative diagnosis was Stage I A...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29331052/flow-pattern-analysis-in-type-b-aortic-dissection-patients-after-stent-grafting-repair-comparison-between-complete-and-incomplete-false-lumen-thrombosis
#8
Wan Naimah Wan Ab Naim, Poo Balan Ganesan, Zhonghua Sun, Jing Lei, Shirley Jansen, Shahrul Amry Hashim, Teik Kok Ho, Einly Lim
Endovascular stent graft repair has become a common treatment for complicated Stanford Type B aortic dissection in order to restore true lumen flow and induce false lumen thrombosis. Using computational fluid dynamics, this study reports the differences in flow patterns and wall shear stress distribution in complicated Stanford Type B aortic dissection patients after endovascular stent graft repair. Five patients were included in this study: two having more than 80% false lumen thrombosis (Group 1), while three others had less than 80% false lumen thrombosis (Group 2) within one year following endovascular repair...
January 13, 2018: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29327572/endovascular-treatment-of-isolated-abdominal-aortic-dissection
#9
Chang Shu, Zhongtao Liu, Quanming Li, Xin Li, Ming Li, Lunchang Wang
No abstract text is available yet for this article.
January 9, 2018: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29322641/case-of-laparoscopic-right-hemicolectomy-for-ascending-colon-cancer-after-aortic-graft-replacement-and-revascularization-of-the-superior-mesenteric-artery
#10
Kiyotaka Hagihara, Hidekazu Takahashi, Norikatsu Miyoshi, Naotsugu Haraguchi, Taishi Hata, Chu Matsuda, Tsunekazu Mizushima, Hirofumi Yamamoto, Yuichiro Doki, Masaki Mori
A 67-year-old man who presented with a bloody stool was diagnosed with ascending colon cancer. He had previously experienced thoracic and abdominal aortic dissections, which were treated with thoracic and abdominal aortic grafts and superior mesenteric artery revascularization. We performed a laparoscopic right hemicolectomy with a D3 lymph node dissection. During the laparotomy, we identified the superior mesenteric artery and an enlarged anterior superior pancreaticoduodenal artery. Injury to the latter artery could lead to severe ischemia in multiple organs; therefore, it was crucial to identify the primary feeding artery and vascular anatomy before and during surgery...
January 11, 2018: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/29313164/treatment-of-nonocclusive-mesenteric-ischemia-with-type-b-aortic-dissection-using-intra-arterial-catheterization-after-trauma-surgery-case-report
#11
Sho Fujiwara, Yuki Sekine, Ryuichi Nishimura, Kazuya Tadasa, Shukichi Miyazaki
BACKGROUND: Nonocclusive mesenteric ischemia (NOMI) is a mesenteric arterial spasm and intestinal ischemia. This disease is a highly lethal disease because diagnosis and decision of appropriate treatments are often difficult. Operations cannot resolve the spasms and may worsen the situation. However, the safety and effectiveness of catheterization for NOMI with aortic dissection (AD) have not yet been elucidated. Here, we report a successful case of early diagnosis and treatment of NOMI with type B AD involving the superior mesenteric artery (SMA) using the intra-arterial infusion of a vasodilator via the SMA...
January 8, 2018: Surgical Case Reports
https://www.readbyqxmd.com/read/29310518/endovascular-treatment-of-acute-and-chronic-isolated-abdominal-aortic-dissection
#12
Dongqing Wang, Tao Ma, Daqiao Guo, Xin Xu, Bin Chen, Junhao Jiang, Jue Yang, Zhenyu Shi, Ting Zhu, Yun Shi, Zhihui Dong, Weiguo Fu
Objective To discuss the strategies and clinical outcomes of endovascular aortic repair (EVAR) for acute and chronic isolated abdominal aortic dissection (IAAD). Methods From January 2012 to June 2017, 33 patients with IAAD were retrospectively reviewed. Patients were classified into acute and chronic groups based on the time to EVAR from IAAD onset (acute: ≤90 days; chronic: >90 days). Patient demographics, clinical parameters, procedural factors, and clinical outcomes were evaluated and compared between the two groups...
January 1, 2018: Vascular
https://www.readbyqxmd.com/read/29306626/mid-term-outcomes-of-endovascular-repair-of-ruptured-thoraco-abdominal-aortic-aneurysms-with-off-the-shelf-branched-stent-grafts
#13
Kiattisak Hongku, Björn Sonesson, Katarina Björses, Jan Holst, Timothy Resch, Nuno V Dias
OBJECTIVE: To assess the mid-term outcomes and feasibility of branched endovascular repair (b-EVAR) of ruptured thoracoabdominal aortic aneurysms (rTAAAs). METHODS: All patients undergoing b-EVAR of rTAAAs between 2011 and 2016 were included. Pre-, intra and postoperative imaging was reviewed to assess technical success, outcomes, and feasibility of b-EVAR in the emergent setting. RESULTS: Eleven emergency b-EVAR of rTAAAs (10 aneurysms and 1 chronic dissection) were performed using off-the-shelf (OTS) branched stentgrafts...
January 3, 2018: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29273297/loss-of-vascular-smooth-muscle-cell-autophagy-exacerbates-angiotensin-ii-associated-aortic-remodeling
#14
Azza Ramadan, Krishna K Singh, Adrian Quan, Pamela J Plant, Mohammed Al-Omran, Hwee Teoh, Subodh Verma
OBJECTIVE: The pathophysiologic processes of abdominal aortic aneurysms (AAAs) and atherosclerosis often intersect. Given that anomalies in vascular smooth muscle cell (SMC) autophagy have been noted in models of atherosclerosis, we sought to evaluate the potential role that SMC autophagy may play in the initiation and progression of AAAs. METHODS: Studies were conducted in ATG7flx/flxSM22α-Cretg/+ (SMC ATG7 knockout [SMC-ATG7-KO]) and ATG7WT/WT; SM22α-Cretg/+ (SMC ATG7 wild-type [SMC-ATG7-WT]) littermates that were continuously infused with angiotensin II (Ang II; 1...
December 19, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29249502/the-profound-impact-of-combined-severe-acidosis-and-malperfusion-on-operative-mortality-in-the-surgical-treatment-of-type-a-aortic-dissection
#15
Jennifer S Lawton, Marc R Moon, Jingxia Liu, Danielle J Koerner, Kevin Kulshrestha, Ralph J Damiano, Hersh Maniar, Akinobu Itoh, Keki R Balsara, Faraz M Masood, Spencer J Melby, Michael K Pasque
OBJECTIVES: Surgery for type A aortic dissection is associated with a high operative mortality, and a variety of predictive risk factors have been reported. We hypothesized that a combination of risk factors associated with organ malperfusion and severe acidosis that are not currently documented in databases would be associated with a level of extreme operative risk that would warrant the consideration of treatment paradigms other than immediate ascending aortic surgery. METHODS: Charts of patients undergoing repair of acute type A aortic dissection between January 1, 1996, and May 1, 2016, were queried for preoperative malperfusion, preoperative base deficit, pH, bicarbonate, cardiopulmonary resuscitation, severe aortic insufficiency, redo status, and preoperative intubation...
November 7, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29242940/clinics-in-diagnostic-imaging-182-acute-descending-aortic-dissection-with-aortic-root-retrograde-extension
#16
John Nathan Gifford, Angeline Choo Choo Poh
A 77-year-old man presented with acute-onset severe chest pain radiating to the back and elevated blood pressure. Multiphasic computed tomography of the aorta revealed an intimal tear in the descending thoracic aorta which extended both retrograde to the aortic root and antegrade to the infra-renal abdominal aorta. The initial impression, that the images showed a Stanford type B aortic dissection, was because the portion of the false lumen that extended beyond the aortic arch remained unopacified even on delayed phases, making it challenging to assess the extent of the dissection flap...
December 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/29242743/open-repair-management-of-a-patient-with-aortic-arch-saccular-aneurysm-penetrating-atherosclerotic-ulcer-one-vessel-coronary-artery-disease-and-an-isolated-dissection-of-the-abdominal-aorta
#17
Harvey Romolo, Dicky A Wartono, Sugisman Suyuti, Bagus Herlambang, Michael Caesario, Ismoyo Sunu
Isolated saccular compared to fusiform aneurysm is considered to be a rare entity with challenges of its own. A 62-year-old female was diagnosed with a case of saccular aneurysm and penetrating atherosclerotic ulcer of the aortic arch. Additionally, she also had one vessel coronary artery disease and type B abdominal aortic dissection. She was then managed with open aortic arch repair and coronary artery bypass grafting. If required, elective endovascular repair will be done for the abdominal aorta on a later date...
2017: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29242065/preliminary-results-of-endovascular-aneurysm-sealing-from-the-multicenter-italian-research-on-nellix-endoprosthesis-irene-study
#18
Bruno Gossetti, Ombretta Martinelli, Michelangelo Ferri, Roberto Silingardi, Fabio Verzini
OBJECTIVE: Because of advances in technology and experience of the operator, endovascular aneurysm repair (EVAR) has supplanted open repair to treat abdominal aortic aneurysm (AAA). The low 30-day mortality and morbidity of EVAR make the endovascular approach particularly suitable for patients at high surgical risk. However, endoleak or endograft migration requiring secondary intervention or open surgical conversion is a limitation of EVAR. The Nellix system (Endologix, Inc, Irvine, Calif) has been designed to seal the entire AAA to overcome these limitations with EVAR...
December 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29240061/-hybrid-treatment-of-patients-with-aneurysms-and-dissections-of-the-aortic-arch-and-descending-portion-of-the-thoracic-aorta
#19
V V Shlomin, M L Gordeev, D A Zverev, E A Shloĭdo, V E Uspenskiĭ, E D Zvereva, P B Bondarenko, P D Puzdriak
The authors share herein their experience with hybrid surgical treatment of 21 patients presenting with lesions of the aortic arch and descending thoracic aorta. Aortic pathology included dissection of the thoracoabdominal aorta (n=15), a sacciform aneurysm of the aortic arch (n=5), and a spindle-shaped aneurysm of the distal portions of the aortic arch (n=1). The first stage consisted of the following operations: transposition of the left subclavian artery into the left common carotid artery (n=9; 42.8%), partial debranching (n=11; 52...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/29234935/cardiac-and-respiratory-gated-volumetric-murine-ultrasound
#20
Arvin H Soepriatna, Frederick W Damen, Pavlos P Vlachos, Craig J Goergen
Current cardiovascular ultrasound mainly employs planar imaging techniques to assess function and physiology. These techniques rely on geometric assumptions, which are dependent on the imaging plane, susceptible to inter-observer variability, and may be inaccurate when studying complex diseases. Here, we developed a gated volumetric murine ultrasound technique to visualize cardiovascular motion with high spatiotemporal resolution and directly evaluate cardiovascular health. Cardiac and respiratory-gated cine loops, acquired at 1000 frames-per-second from sequential positions, were temporally registered to generate a four-dimensional (4D) dataset...
December 12, 2017: International Journal of Cardiovascular Imaging
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