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https://www.readbyqxmd.com/read/28804237/aneurysmal-degeneration-of-the-brachial-artery-after-vascular-access-creation-surgical-treatment-results
#1
Sérgio Teixeira, Pedro Sá Pinto, Carlos Veiga, Ivone Silva, Rui Almeida
True peripheral artery aneurysms proximal to a longstanding arteriovenous fistula is a well-recognized complication. Late aneurysmal degeneration is rare. This study analyzed the characteristics, therapeutic options, and outcomes of true donor brachial artery aneurysms (DBAA) after arteriovenous fistula (AVF) for hemodialysis. We retrospectively collected the data of patients with DBAA after AVF creation, surgically repaired between January 2001 and September 2015. We excluded patients with pseudoaneurysms, anastomotic aneurysms, and infected aneurysms...
September 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28802735/incidence-of-cardiovascular-events-and-vascular-interventions-in-patients-with-type-2-diabetes
#2
Suzanne E Engelen, Yolanda van der Graaf, Manon C Stam-Slob, Diederick E Grobbee, Maarten J Cramer, L Jaap Kappelle, Gert J de Borst, Frank L J Visseren, Jan Westerink
OBJECTIVE: Diabetes mellitus is associated with an increased risk for cardiovascular morbidity and mortality. The vascular burden in terms of incidence of cardiovascular events (CVE) and vascular interventions is however poorly quantified. In this study we evaluated the incidence rates of CVE and vascular interventions in patients with type 2 diabetes (T2DM) with and without cardiovascular disease (CVD) in comparison to patients without type 2 diabetes. RESEARCH DESIGN AND METHODS: In a cohort of 9...
July 23, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28782840/nutrient-re-routing-and-altered-gut-islet-cell-crosstalk-may-explain-early-relief-of-severe-postprandial-hypoglycaemia-after-reversal-of-roux-en-y-gastric-bypass
#3
M S Svane, M B Toft-Nielsen, V B Kristiansen, B Hartmann, J J Holst, S Madsbad, K N Bojsen-Møller
BACKGROUND: Roux-en-Y gastric bypass is associated with an increased risk of postprandial hyperinsulinaemic hypoglycaemia, but the underlying pathophysiology remains poorly understood. We therefore examined the effect of re-routing of nutrient delivery on gut-islet cell crosstalk in a person with severe postprandial hypoglycaemia after Roux-en-Y gastric bypass. CASE REPORT: A person with severe postprandial hypoglycaemia, who underwent surgical reversal of Roux-en-Y gastric bypass, was studied before reversal and at 2 weeks and 3 months after reversal surgery using liquid mixed meal tests and hyperinsulinaemic-euglycaemic clamps...
August 7, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28762929/-risk-factors-of-cardiovascular-complications-after-beating-heart-coronary-artery-bypass-grafting-in-patients-with-type-two-diabetes
#4
S Y Borodashkina, K V Protasov, V A Podkamennyi
AIM: to determine risk factors of early cardiovascular complications after beating-heart coronary artery bypass grafting (CABG) in patients with ischemic coronary disease (IHD) and type two diabetes (D2). MATERIALS AND METHODS: We included into this study 188 patients (mean age 59 years, 85.1% men) with IHD and D2 who underwent off-pump CABG. The following cardiovascular complications (CVC) registered within 7 days after surgery were analyzed: myocardial infarction (MI), stroke/transient ischemic attack (S/TIA), atrial fibrillation (AF)...
March 2017: Kardiologiia
https://www.readbyqxmd.com/read/28762052/in-vitro-mechanical-property-evaluation-of-chitosan-based-hydrogels-intended-for-vascular-graft-development
#5
Audrey Aussel, Alexandra Montembault, Sébastien Malaise, Marie Pierre Foulc, William Faure, Sandro Cornet, Rachida Aid, Marc Chaouat, Thierry Delair, Didier Letourneur, Laurent David, Laurence Bordenave
Vascular grafts made of synthetic polymers perform poorly in cardiac and peripheral bypass applications. In these applications, chitosan-based materials can be produced and shaped to provide a novel scaffold for vascular tissue engineering. The goal of this study was to evaluate in vitro the mechanical properties of a novel chitosan formulation to assess its potential for this scaffold. Two chitosan-based hydrogel tubes were produced by modulating chitosan concentration. Based on the standard ISO 7198:1998, the hydrogel tubes were characterized in vitro in terms of suture retention strength, tensile strength, compliance, and burst pressure...
July 31, 2017: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28760065/risk-of-major-amputation-or-death-among-patients-with-critical-limb-ischemia-initially-treated-with-endovascular-intervention-surgical-bypass-minor-amputation-or-conservative-management
#6
Ehrin J Armstrong, Michael P Ryan, Erin R Baker, Brad J Martinsen, Harry Kotlarz, Candace Gunnarsson
AIMS: Patients with critical limb ischemia (CLI) have an increased risk of major amputation. The initial treatment approach for CLI may significantly impact the subsequent risk of major amputation or death. The objective of this study was to describe the initial treatment approaches of patients with CLI and the limb outcomes associated with each approach. METHODS: Data from MarketScan Commercial and Medicare Supplemental Databases from January 2006-December 2014 was utilized...
August 16, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28758150/diabetes-and-cardioplegia
#7
Brittany A Potz, Laura A Scrimgeour, Jun Feng, Frank W Sellke
Cardiac surgery with cardiopulmonary bypass and cardioplegic arrest is associated with injury to the vasculature and microcirculation leading to coronary microvascular dysfunction, permeability changes and cardiac dysfunction. In the setting of cardiopulmonary bypass with cardioplegia, poorly-controlled diabetes is associated with significant changes in endothelium-dependent and independent vascular dysfunction, vascular reactivity, vascular permeability, protein expression, cell death, coronary/peripheral microcirculation and reduced vasomotor tone leading to hypotension and impaired endothelial function...
June 2017: Journal of Nature and Science
https://www.readbyqxmd.com/read/28755582/spectral-doppler-ultrasound-of-peripheral-arteries-a-pictorial-review
#8
REVIEW
Zachary Nuffer, Andrey Rupasov, Neel Bekal, Jacqueline Murtha, Shweta Bhatt
This article reviews the pathophysiology and sonographic findings of peripheral arterial lesions, with emphasis on the spectral Doppler waveforms encountered in each. It discusses the characteristic features of the Doppler spectra in obstructive conditions, including thromboembolism, atherosclerotic disease, bypass graft occlusion, dissection, trauma, and compartment syndrome, as well as non-obstructive conditions, including hyperemia, pseudoaneurysm, and arteriovenous fistula. Familiarity with the commonly-encountered spectral waveforms in the setting of these lesions is necessary for timely and accurate diagnosis and treatment...
July 16, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28754433/a-novel-double-intra-carotid-cannulation-technique-to-study-the-effect-of-central-nutrient-sensing-on-glucose-metabolism-in-the-rat
#9
M Rijnsburger, L Eggels, J Castel, C Cruciani-Guglielmacci, M T Ackermans, S Luquet, S E la Fleur
BACKGROUND: The hypothalamus plays a key role in central nutrient sensing and glucose homeostasis. Due to its position next to the third ventricle, intracerebroventricular (ICV) injections or osmotic minipumps are widely applied techniques in studying effects of hormones and other molecules on the hypothalamus and glucose metabolism. NEW METHODS: The intracarotid catheter technique in which a catheter is placed in the carotid artery, pointing towards the brain, provides a physiological route to centrally infuse blood-borne molecules in an undisturbed animal...
July 25, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28747077/sandwich-technique-for-endovascular-repair-of-acute-type-a-aortic-dissection
#10
Feng Gao, Qian Zeng, Fangming Lin, Xiaohu Ge
OVERVIEW: To describe a new endovascular procedure for acute type A aortic dissection (TAAD) repair. METHODS: Between 2013 and 2016, 12 patients (average age 54±9.6 years; 10 men) with acute TAAD (mean EURO score 11.4%±3.2%, range 5-17) and unfit for surgery underwent thoracic endovascular aortic repair (TEVAR) with 2 periscope grafts to preserve blood supply to supra-aortic branches plus bypass grafting as needed. If the ascending aorta was dilated to >40 mm, sternotomy was performed to wrap the ascending aorta and reduce its diameter to accommodate the aortic stent-grafts...
July 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28739455/decision-making-in-critical-limb-ischemia-a-markov-simulation
#11
Aaron J Deutsch, C Charles Jain, Kimberly G Blumenthal, Mark W Dickinson, Anne M Neilan
BACKGROUND: Critical limb ischemia (CLI) is a feared complication of peripheral vascular disease that often requires surgical management and may require amputation of the affected limb. OBJECTIVE: To use a decision model to inform clinical management for a 63-year-old woman with CLI and multiple medical comorbidities, including advanced heart failure and diabetes. METHODS: Markov decision model evaluating four strategies: amputation, surgical bypass, endovascular therapy (e...
July 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28739453/modified-frailty-index-can-be-used-to-predict-adverse-outcomes-and-mortality-after-lower-extremity-bypass-surgery
#12
Tarik Ali, Erik Lehman, Faisal Aziz
OBJECTIVES: Frailty has been increasingly used as a prognostic indicator for various surgical operations. Patients with peripheral arterial disease represent a cohort of population with advanced medical comorbidities. The aim of this study is to correlate the postoperative outcomes after lower extremity bypass surgery with pre operative modified frailty index. METHODS: Using 2010 American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database, patients undergoing infrainguinal arterial bypass surgery were identified...
July 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28735374/changes-in-global-transcriptional-profiling-of-women-following-obesity-surgery-bypass
#13
Marcela Augusta de Souza Pinhel, Natalia Yumi Noronha, Carolina Ferreira Nicoletti, Bruno Affonso Parente de Oliveira, Cristiana Cortes-Oliveira, Vitor Caressato Pinhanelli, Wilson Salgado Junior, Ana Julia Machry, Wilson Araújo da Silva Junior, Dorotéia Rossi Silva Souza, Júlio Sérgio Marchini, Carla Barbosa Nonino
BACKGROUND: Differential gene expression in peripheral blood mononuclear cells (PBMCs) after Roux-en-Y gastric bypass (RYGB) is poorly characterized. Markers of these processes may provide a deeper understanding of the mechanisms that underlie these events. The main goal of this study was to identify changes in PBMC gene expression in women with obesity before and 6 months after RYGB-induced weight loss. METHODS: The ribonucleic acid (RNA) of PBMCs from 13 obese women was analyzed before and 6 months after RYGB; the RNA of PBMCs from nine healthy women served as control...
July 22, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28720742/-two-cases-of-ruptured-blood-blister-like-aneurysm-treated-with-x-ray-angiography-perfusion-xap-analysis
#14
Shoichi Tani, Hirotoshi Imamura, Katsunori Asai, Kampei Shimizu, Hidemitsu Adachi, So Tokunaga, Takayuki Funatsu, Mikiya Beppu, Keita Suzuki, Hiromasa Adachi, Tomohiro Okuda, Yuichi Matsui, Yasunori Yoshida, Shuhei Kawabata, Ryo Akiyama, Kazufumi Horiuchi, Nobuyuki Sakai
Two cases of ruptured blood blister-like internal carotid artery aneurysms for which low flow bypass was sufficient to attain successful treatment of trapping are reported. In the acute stage of rupture, it is troublesome to perform accurate examinations of tolerance to ischemia like balloon occlusion test(BOT)for estimating the required amount of bypass flow. In our cases, X-ray angiography perfusion(XAP)analysis was introduced, which could be performed in a couple dozen seconds without room-to-room transfer of patients, following the ordinary examination of diagnostic digital subtraction angiography...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28712578/outcomes-readmissions-and-costs-in-transfemoral-and-alterative-access-transcatheter-aortic-valve-replacement-in-the-us-medicare-population
#15
Fenton H McCarthy, Danielle D Spragan, Danielle Savino, Taylor Dibble, Ashley C Hoedt, Katherine M McDermott, Joseph E Bavaria, Howard C Herrmann, Saif Anwaruddin, Jay Giri, Wilson Y Szeto, Peter W Groeneveld, Nimesh D Desai
OBJECTIVE: To comprehensively evaluate and compare utilization, outcomes, and especially costs of transfemoral (TF), transapical (TA), and transaortic (TAO) transcatheter aortic valve replacement (TAVR). METHODS: All Medicare fee-for-service patients undergoing TF (n = 4065), TA (n = 691), or TAO (n = 274) TAVR between January 1, 2011, and November 30, 2012, were identified using Health Care Procedure Classification Codes present on Medicare claims. Hospital charges from Medicare claims were converted to costs using hospital-specific Medicare cost-to-charge ratios...
June 16, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28695560/minimally-invasive-extracorporeal-circulation-excellent-outcome-and-life-expectancy-after-coronary-artery-bypass-grafting-surgery
#16
Bernhard Winkler, Paul Philipp Heinisch, Grzegorz Zuk, Katarzyna Zuk, Brigitta Gahl, Hans-Jörg Jenni, Alexander Kadner, Christoph Huber, Thierry Carrel
OBJECTIVE: Coronary artery bypass grafting (CABG) remains the gold standard for complex revascularisation in multivessel disease. The concept of the minimally invasive extracorporeal circulation circuit (MiECC) was introduced to minimise pathophysiological side effects of conventional extracorporeal circulation. This study presents early and long-term outcomes after CABG with use of MiECC in a single-centre consecutive patient cohort. METHODS: From 1 January 2005 to 31 December 2010, 2130 patients underwent isolated CABG with MiECC at our centre...
July 11, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28691213/central-cannulation-strategy-for-extent-i-thoracoabdominal-aneurysm-repair-of-chronic-type-b-aortic-dissection
#17
Reilly D Hobbs, Tyler J Wallen, Caroline M Komlo, Patrick J Moeller, Alberto Pochettino, Joseph E Bavaria, Prashanth Vallabhajosyula
INTRODUCTION: We evaluated the safety profile of a central cardiopulmonary bypass (CPB) cannulation strategy for repair of extent I thoracoabdominal aortic aneurysms (TAAA) with chronic type B dissection in comparison to traditional peripheral CPB cannulation strategies. METHODS: Patients undergoing extent I TAAA repair for chronic type B dissection from 2002 to 2011 were retrospectively reviewed. Patients were grouped by their CPB cannulation strategy. Patients in Group I underwent central aortic cannulation (n = 28) through a left thoracotomy incision...
July 10, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28691147/gastric-bypass-simultaneously-improves-adipose-tissue-function-and-insulin-dependent-type-2-diabetes-mellitus
#18
Adrian T Billeter, Spiros Vittas, Barbara Israel, Katharina M Scheurlen, Asa Hidmark, Thomas H Fleming, Stefan Kopf, Markus W Büchler, Beat P Müller-Stich
OBJECTIVE: The underlying causes of type 2 diabetes (T2DM) remain poorly understood. Adipose tissue dysfunction with high leptin, inflammation, and increased oxidative stress may play a pivotal role in T2DM development in obese patients. Little is known about the changes in the adipose tissue after Roux-Y gastric bypass (RYGB) in non-severely obese patients (BMI < 35 kg/m(2)) and since these patients have more T2DM-associated complications than obese patients ("obesity paradox"), we investigated changes in adipose tissue function in a cohort of BMI <35 kg/m(2) with insulin-dependent T2DM after RYGB surgery which resolves T2DM...
July 9, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28689956/crossing-the-rubicon-a-closer-look-at-the-pedal-loop-technique
#19
Lanfroi Graziani
The outcome of peripheral bypass surgery in patients at risk of limb loss is largely influenced by the anatomical integrity of the plantar arch. For this reason, in the last few decades, this area has been considered to be a sensitive territory, rarely approached surgically, and virtually untouchable by any endovascular activities. This hesitance was related to the possible damage to the thin dorsalis pedis, deep plantar, and lateral plantar arteries, together with the crucial metatarsal and digital branches arising from the arch...
July 6, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28685029/does-gastric-bypass-surgery-change-body-weight-set-point
#20
REVIEW
Z Hao, M B Mumphrey, C D Morrison, H Münzberg, J Ye, H R Berthoud
The relatively stable body weight during adulthood is attributed to a homeostatic regulatory mechanism residing in the brain which uses feedback from the body to control energy intake and expenditure. This mechanism guarantees that if perturbed up or down by design, body weight will return to pre-perturbation levels, defined as the defended level or set point. The fact that weight re-gain is common after dieting suggests that obese subjects defend a higher level of body weight. Thus, the set point for body weight is flexible and likely determined by the complex interaction of genetic, epigenetic and environmental factors...
December 2016: International Journal of Obesity Supplements
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