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https://www.readbyqxmd.com/read/27903475/technical-aspects-of-open-repair-for-degenerative-aneurysmal-evolution-despite-early-thoracic-endovascular-repair-of-type-b-aortic-dissection
#1
Sonia Aguir, Salma El Batti, Paul Achouh, Pierre Julia, Alain Bel, Jean-Noël Fabiani, Jean-Marc Alsac
: Closure of the proximal tear by Thoracic Endovascular Aortic Repair (TEVAR) at the acute phase appears to be an safe effective treatment to prevent aneurysmal degeneration type B dissection. However, it appears to be inefficient in up to a third of the patient. We report the technical aspects of our experience with patients undergoing secondary open repair after TEVAR for dissecting thoraco-abdominal aneurysm despite early closure proximal tear by TEVAR. METHODS: During a period of 5 years, 96 patients presenting acute Type B Aortic Dissections (TBAD) were treated by TEVAR and followed-up in our institution...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27890841/development-of-a-scoring-system-for-the-prediction-of-early-graft-failure-after-peripheral-arterial-bypass-surgery
#2
Andreas M Lazaris, Sotiria Mastoraki, Evangelos Kontopantelis, Konstantinos Seretis, Maria Karouki, Konstantinos Moulakakis, Miltiadis Matsagkas, Spyros N Vasdekis
OBJECTIVES: An occluded lower limb arterial bypass is associated with poor prognosis for the limb. Currently, no risk assessment method to estimate the risk of early graft failure exists. Aim of this study was to investigate the effect of various potential factors on early graft failure of infrainguinal bypass surgery and to develop a risk-scoring model to predict it. DESIGN AND METHODS: A prospective observational clinical study was performed. One hundred infrainguinal bypass procedures (60 autologous and 40 synthetic grafts), throughout a 3-year period were included...
November 24, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27887690/relation-of-mitochondrial-dna-copy-number-in-peripheral-blood-to-postoperative-atrial-fibrillation-after-isolated-off-pump-coronary-artery-bypass-grafting
#3
Jian Zhang, Shu Xu, Yinli Xu, Yu Liu, Zhi Li, Yuji Zhang, Yan Jin, Xiaodong Xue, Huishan Wang
Oxidative stress has been considered to be an important factor contributing to postoperative atrial fibrillation (PoAF). Mitochondrial DNA (mtDNA) copy number in peripheral blood has been found to be associated with a patient's oxidative stress. Therefore, we sought to determine whether there was association between mtDNA copy number and the onset of atrial fibrillation. mtDNA copy numbers were measured using the quantitative real-time polymerase chain reaction in peripheral blood from 485 consecutive patients with sinus rhythm undergoing coronary artery bypass grafting...
November 1, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27886623/liver-bcatm-transgenic-mouse-model-reveals-the-important-role-of-the-liver-in-maintaining-bcaa-homeostasis
#4
Elitsa A Ananieva, Cynthia G Van Horn, Meghan R Jones, Susan M Hutson
Unlike other amino acids, the branched-chain amino acids (BCAAs) largely bypass first-pass liver degradation due to a lack of hepatocyte expression of the mitochondrial branched-chain aminotransferase (BCATm). This sets up interorgan shuttling of BCAAs and liver-skeletal muscle cooperation in BCAA catabolism. To explore whether complete liver catabolism of BCAAs may impact BCAA shuttling in peripheral tissues, the BCATm gene was stably introduced into mouse liver. Two transgenic mouse lines with low and high hepatocyte expression of the BCATm transgene (LivTg-LE and LivTg-HE) were created and used to measure liver and plasma amino acid concentrations and determine whether the first two BCAA enzymatic steps in liver, skeletal muscle, heart and kidney were impacted...
November 2, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27875735/superior-long-term-outcome-associated-with-native-vessel-versus-graft-vessel-pci-following-secondary-pci-in-patients-with-prior-cabg
#5
Chrysostomos A Mavroudis, Tushar Kotecha, Omar Chehab, Jonathan Hudson, Roby D Rakhit
BACKGROUND: Secondary percutaneous coronary intervention (PCI) in patients with prior coronary artery bypass graft surgery is increasingly common. Graft vessel PCI has higher rates of adverse events compared with native coronary vessel PCI. AIM: To investigate the clinical outcomes of patients with prior CABG who underwent secondary PCI of either a graft vessel (GV), a native coronary vessel (NV) or both graft and native (NG) vessels. METHODS: 220 patients (84% male) who underwent PCI in our institution to either GV (n=89), NV (n=103) or both GV and NV (NG group) (n=28) were studied...
November 14, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27871493/diabetes-does-not-worsen-outcomes-following-infrageniculate-bypass-or-endovascular-intervention-for-patients-with-critical-limb-ischemia
#6
Caitlin W Hicks, Alireza Najafian, Alik Farber, Matthew T Menard, Mahmoud B Malas, James H Black, Christopher J Abularrage
OBJECTIVE: Both open surgery and endovascular peripheral interventions have been shown to effectively improve outcomes in patients with peripheral arterial disease, but minimal data exist comparing outcomes performed at and below the knee among patients with diabetes (DM) specifically. The purpose of this study is to compare outcomes following open bypass (lower extremity bypass [LEB]) and peripheral vascular intervention (PVI) at and below the knee in patients with DM vs patients without DM (non-DM) with critical limb ischemia...
December 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27857178/stent-revascularization-versus-bypass-surgery-for-peripheral-artery-disease-in-type-2-diabetic-patients-an-instrumental-variable-analysis
#7
Chia-Hsuin Chang, Jou-Wei Lin, Jiun Hsu, Li-Chiu Wu, Mei-Shu Lai
The objective of this study was to use instrumental variable (IV) analyses to evaluate the clinical effectiveness of percutaneous stent revascularization versus bypass surgery in the treatment of peripheral artery disease (PAD) among type 2 diabetic patients. Type 2 diabetic patients who received peripheral artery bypass surgery (n = 5,652) or stent revascularization (n = 659) for lower extremity arterial stenosis between 2000 and 2007 were identified from the Taiwan National Health Insurance claims database...
November 18, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27836334/neural-adaptation-to-peripheral-blur-in-myopes-and-emmetropes
#8
Atanu Ghosh, Len Zheleznyak, Antoine Barbot, HaeWon Jung, Geunyoung Yoon
In the presence of optical blur at the fovea, blur adaptation can improve visual acuity (VA) and perceived image quality over time. However, little is known regarding blur adaptation in the peripheral retina. Here, we examined neural adaptation to myopic defocus at the fovea and parafovea (10° temporal retina) in both emmetropes and myopes. During the 60-min adaptation period, subjects (3 emmetropes and 3 myopes) watched movies with +2 diopters of defocus blur through a 6-mm artificial pupil in two separate, counter balanced sessions for each retinal location...
November 8, 2016: Vision Research
https://www.readbyqxmd.com/read/27833497/peroneal-nerve-palsy-after-compression-stockings-application
#9
Jun Hyun Kim, Won Il Kim, Ji Yeon Kim, Won Joo Choe
Peroneal nerve palsy can be caused by various etiology. We report unilateral peroneal nerve palsy after compression stockings application. A 64-year-old man underwent off-pump coronary bypass graft. Surgeon did not use saphenous vein for the bypass graft. Sedation was stopped after 3 h postoperative. After 16 h, for prophylaxis of deep vein thrombosis, knee-high elastic stocking was applied. After 1 h, he took off right stocking because of numbness but left stocking was kept. After 24 h postoperative, (8 h after stocking application) patient complained suddenly left foot drop...
October 2016: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/27805242/relationship-between-site-of-myocardial-infarction-left-ventricular-function-and-cytokine-levels-in-patients-undergoing-coronary-artery-surgery
#10
Ilker Kiris, Sahin Kapan, Cuneyt Narin, Mehmet Ozaydın, Medine Cumhur Cure, Recep Sutcu, Huseyin Okutan
BACKGROUND: The purpose of this study was to examine the relationship between left ventricular (LV) function, cytokine levels and site of myocardial infarction (MI) in patients undergoing coronary artery bypass grafting (CABG). METHODS: Sixty patients undergoing CABG were divided into three groups (n = 20) according to their history of site of myocardial infarction (MI): no previous MI, anterior MI and posterior/inferior MI. In the pre-operative period, detailed analysis of LV function was done by transthoracic echocardiography...
September 2016: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/27801306/the-use-of-bilateral-internal-mammary-arteries-for-coronary-revascularization-in-patients-with-copd-is-it-a-good-idea
#11
Yasser Yehia Hegazy, Ralf Sodian, Wael Hassanein, Amr Rayan, Juergen Ennker
BACKGROUND: The use of bilateral internal mammary arteries (BIMA) is limited worldwide, especially in patients with chronic obstructive pulmonary disease (COPD). Thus, we assessed the safety of the use of BIMA in COPD patients. METHODS: From cohorts of 8846 patients operated on at our center for primary isolated multi-vessel coronary bypass operations between 2002 and 2012, we studied two propensity-matched groups of patients with COPD who received either single internal mammary artery and saphenous vein grafts (SIMA group: 137 patients) or exclusively BIMA (BIMA group: 137 patients)...
October 31, 2016: Heart Surgery Forum
https://www.readbyqxmd.com/read/27801303/levosimendan-use-increases-cardiac-performance-after-coronary-artery-bypass-grafting-in-end-stage-renal-disease-patients
#12
Hakan Atalay, Zeki Temizturk, Hasan Baki Altinsoy, Davut Azboy, Salih Colak, Atakan Atalay, Omer Faruk Dogan
BACKGROUND: The effect of levosimendan on myocardial performance has not been studied in dialysis-dependent end-stage renal disease patients who have undergone coronary artery bypass grafting (CABG) surgery. Our aim was to investigate the effect of levosimendan on postoperative hemodynamic effects in end-stage renal disease patients undergoing CABG operation. METHODS: We performed 58 elective isolated CABG operations in end-stage renal disease patients. The study group received levosimendan at a slow bolus dose of 3 µg/kg, followed by a 24-hour infusion of 0...
October 27, 2016: Heart Surgery Forum
https://www.readbyqxmd.com/read/27801300/effect-of-body-mass-index-on-mortality-and-morbidity-in-patients-undergoing-coronary-artery-bypass-grafting-surgery
#13
Serkan Akarsu, İrem İris Kan, Tolunay Sevingil, Mustafa Tok
BACKGROUND: This study aims to investigate the effect of body mass index (BMI) on mortality and morbidity in patients undergoing coronary artery bypass grafting (CABG) surgery. METHODS: We retrospectively evaluated the medical records of 403 patients undergoing coronary artery bypass surgery in our center. The patients were divided into 5 groups according to their BMI values. Preoperative demographic characteristics, operative data, and postoperative complications during the six-month follow-up period were compared between the groups...
October 21, 2016: Heart Surgery Forum
https://www.readbyqxmd.com/read/27790407/treatment-of-a-giant-serpentine-aneurysm-in-the-anterior-cerebral-artery
#14
Sung Tae Kim, Young-Gyun Jeong, Hae Woong Jeong
A giant serpentine aneurysm (GSA) in the anterior cerebral artery (ACA) poses a technical challenge in treatment given its large size, unique neck, and dependent distal vessels. Here we report the case of a GSA in the ACA successfully treated with a combined surgical and endovascular approach. A 54-year-old woman presented with dull headache. On brain computed tomography (CT), a large mass (7 cm × 5 cm × 5 cm) was identified in the left frontal lobe. Cerebral angiography revealed a GSA in the left ACA. Bypass surgery of the distal ACA was performed, followed byocclusion of the entry channel via an endovascular approach...
June 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/27790336/efficacy-of-preoperative-color-doppler-sonography-of-lower-extremity-veins-on-postoperative-outcomes-in-candidates-of-saphenectomy-a-randomized-clinical-trial
#15
Rouhollah Zarepur, Saeed Kargar, Mehdi Hadadzadeh, Nooshin Hatamizadeh, Ehsan Zarepur, Seyed Khalil Forouzannia, Reza Faraji, Mohammadtaghi Sarebanhassanabadi
BACKGROUND: Doppler sonography is a type of sonography used for imaging the blood flow in the vessels and heart. This technique uses ultrasound waves with high frequency. In some patient candidates for venous graft, the identification of the suitable vein is not possible with clinical examination. OBJECTIVE: This study compared the effects of preoperative color Doppler sonography of lower extremity veins on the postoperative outcomes of saphenectomy. METHODS: This randomized clinical trial was conducted on 100 candidates of an off-pump coronary artery bypass graft (CABG) hospitalized in Afshar Hospital in Yazd in 2015...
September 2016: Electronic Physician
https://www.readbyqxmd.com/read/27782724/computer-aided-diagnosis-of-prostate-cancer-a-texton-based-approach
#16
Andrik Rampun, Bernie Tiddeman, Reyer Zwiggelaar, Paul Malcolm
PURPOSE: In this paper the authors propose a texton based prostate computer aided diagnosis approach which bypasses the typical feature extraction process such as filtering and convolution which can be computationally expensive. The study focuses the peripheral zone because 75% of prostate cancers start within this region and the majority of prostate cancers arising within this region are more aggressive than those arising in the transitional zone. METHODS: For the model development, square patches were extracted at random locations from malignant and benign regions...
October 2016: Medical Physics
https://www.readbyqxmd.com/read/27772595/concomitant-thoracic-aortobifemoral-bypass-with-left-ventricular-assist-device-implantation
#17
Muath Bishawi, Asad A Shah, Richard L McCann, Carmelo A Milano
Improved quality of life for patients after left ventricular assist device (LVAD) implantation can be greatly limited by peripheral vascular disease even if heart failure symptoms are resolved by LVAD support. We present a case of concomitant thoracic aortobifemoral bypass and LVAD implantation in a patient with ischemic cardiomyopathy, severe peripheral vascular disease, and multiple previous failed revascularization attempts. In this patient, we used the LVAD outflow to provide the inflow to the femoral artery bypass graft...
November 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27765483/endovascular-treatment-of-transatlantic-inter-society-consensus-d-aortoiliac-occlusive-disease-using-unibody-bifurcated-endografts
#18
Robert M Van Haren, Lee J Goldstein, Omaida C Velazquez, Jagajan Karmacharya, Arash Bornak
OBJECTIVE: Aortobifemoral bypass has been the gold standard treatment for extensive aortoiliac occlusive disease. Endovascular therapy and stenting of aortic and iliac occlusive lesions has proven to be efficacious, especially when dealing with short segment lesions. Endovascular treatment of TransAtlantic Inter-Society Consensus II (TASC) D aortoiliac occlusive lesions remains a challenge, but a valuable treatment option in poor surgical candidates. We present our operative technique and midterm results in treating TASC D aortoiliac occlusive disease using unibody bifurcated endografts...
October 17, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27763266/predictive-factors-for-better-bypass-patency-and-limb-salvage-after-prosthetic-above-knee-bypass-reconstruction
#19
Eric Klingelhoefer, Hendrik Bergert, Stephan Kersting, Stefan Ludwig, Norbert Weiss, Frank Schönleben, Robert Grützmann, Gabor Gäbel
BACKGROUND: Peripheral arterial disease (PAD) is one of the most underestimated diseases because of its high prevalence and unfavorable prognosis. Many PAD patients without suitable autologous veins or options for endovascular treatment receive prosthetic above-knee femoropopliteal bypass (PAKB). Until now predictors of prosthetic bypass failure and of increased amputation risk remain indistinct. This study aimed to identify predictive factors associated with better bypass patency and limb salvage to achieve a more favorable outcome after PAKB reconstruction...
August 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27750177/fondaparinux-for-intra-and-perioperative-anticoagulation-in-patients-with-heparin-induced-thrombocytopenia-candidates-for-peripheral-vascular-surgery-report-of-4-cases
#20
Giulio Illuminati, Francesco G Calio', Giulia Pizzardi, Chiara Amatucci, Federica Masci, Piergaspare Palumbo
INTRODUCTION: Intra and perioperative anticoagulation in patients with heparin induced thrombocytopenia (HIT), candidates for peripheral vascular surgery remains a challenge, as the best alternative to heparin has not yet been established. We evaluated the off-label use of fondaparinux in four patients with HIT, undergoing peripheral vascular surgery procedures. PRESENTATION OF CASES: Four patients of whom 3 men of a mean age of 66 years, with proven heparin induced thrombocytopenia (HIT) underwent two axillo-femoral bypasses, one femoro-popliteal bypass and one resection of a splenic artery aneurysm under fondaparinux...
October 8, 2016: International Journal of Surgery Case Reports
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