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https://www.readbyqxmd.com/read/29452370/blood-cardioplegia-for-cardiac-surgery-in-acute-myocardial-infarction-rat-experiments-with-two-widely-used-solutions
#1
Andreas Boening, Lena Assling-Simon, Martina Heep, Kerstin Boengler, Bernd Niemann, Julia Schipke, Christian Mühlfeld, Philippe Grieshaber
OBJECTIVES: Blood cardioplegia (BCP) can be used in different ways to protect the heart from ischaemia-reperfusion injury during cardiac surgery. Because there could be differences between warm and cold intermittent cardioplegia with or without warm reperfusion, we investigated the influence of 2 blood cardioplegia solutions on cardiac function, metabolism and infarct size in stable and infarcted rat hearts. METHODS: The hearts of 32 male Wistar rats were excised and inserted into a blood-perfused isolated heart apparatus...
February 14, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29450690/mortality-rates-of-patients-undergoing-emergency-laparotomy-in-an-irish-university-teaching-hospital
#2
Aoife C Kiernan, Peadar S Waters, Sean Tierney, Paul Neary, Maria Donnelly, Dara O Kavanagh, Bridget Egan
INTRODUCTION: Emergency laparotomy (EL) is a commonly performed operation with increased morbidity and mortality. Currently, there is a lack of published outcomes following emergency laparotomy within an Irish population. The aim of this study was to assess our outcomes and compare these to predefined outcomes from NELA. METHODS: A review of a prospectively maintained database of all patients who underwent an emergency laparotomy between January 1st 2015 and October 31st 2016 was performed...
February 15, 2018: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29447379/acute-exercise-is-not-cardioprotective-and-may-induce-apoptotic-signalling-in-heart-surgery-a-randomized-controlled-trial
#3
Benedikte T Smenes, Fredrik H Bækkerud, Katrine H Slagsvold, Erlend Hassel, Martin Wohlwend, Maria Pinho, Morten Høydal, Ulrik Wisløff, Øivind Rognmo, Alexander Wahba
OBJECTIVES: During open-heart surgery, the myocardium experiences ischaemia-reperfusion injury. A single bout of moderate, 30-min exercise induces preconditioning and protects the heart from ischaemia-reperfusion injury in rats, but this has never been investigated in humans. We aimed to investigate whether 1 bout of moderate exercise 24 h prior to surgery protects against mitochondrial and cardiac damage. METHODS: Patients scheduled for elective coronary artery bypass were eligible for this pilot study...
February 13, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29444216/long-term-outcomes-of-single-ventricle-palliation-for-pulmonary-atresia-with-intact-ventricular-septum-fontan-survivors-remain-at-risk-of-late-myocardial-ischaemia-and-death
#4
Patrick Elias, Chin Leng Poh, Karin du Plessis, Diana Zannino, Kathryn Rice, Dorothy J Radford, Andrew Bullock, Gavin R Wheaton, David S Celermajer, Yves d'Udekem
OBJECTIVES: The specific outcomes of patients with pulmonary atresia with intact ventricular septum late after Fontan palliation are unknown. Patients with smaller right ventricles and myocardial sinusoids are known to have worse survival in the first years of life. Whether the potential for coronary ischaemia affects the long-term outcomes of these patients after Fontan palliation is still unknown. METHODS: All patients with pulmonary atresia with intact ventricular septum who underwent the Fontan procedure from 1984 to 2016 in Australia and New Zealand were identified, and preoperative, perioperative and follow-up data were collected...
February 12, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29442529/signaling-mediators-modulated-by-cardioprotective-interventions-in-healthy-and-diabetic-myocardium-with-ischaemia-reperfusion-injury
#5
Feyzizadeh Saeid, Javadi Aniseh, Badalzadeh Reza, Vafaee S Manouchehr
Ischaemic heart diseases are one of the major causes of death in the world. In most patients, ischaemic heart disease is coincident with other risk factors such as diabetes. Patients with diabetes are more prone to cardiac ischaemic dysfunctions including ischaemia-reperfusion injury. Ischaemic preconditioning, postconditioning and remote conditionings are reliable interventions to protect the myocardium against ischaemia-reperfusion injuries through activating various signaling pathways and intracellular mediators...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29437714/symmetrical-peripheral-gangrene-of-bilateral-feet-and-unilateral-hand-after-administration-of-vasopressors-during-septic-shock
#6
Naeemah Ruffin, Chirag V Vasa, Sarah Breakstone, Wayne Axman
We report a case of a 75-year-old Hispanic man treated for septic shock after undergoing surgery for impacted renal stones. He was given vasopressors and later developed symmetrical peripheral gangrene (SPG) on both his feet and left hand. SPG is a serious and rare condition presenting clinically as an acute onset of ischaemia with no vessel occlusion. Vasopressors are identified as a contributing factor in SPG development. The patient ultimately underwent transmetatarsal amputations of both feet and amputation of three digits on his left hand...
February 7, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29436250/effects-of-preconditioned-plasma-collected-during-the-late-phase-of-remote-ischaemic-preconditioning-on-ventricular-arrhythmias-caused-by-myocardial-ischaemia-reperfusion-in-rats
#7
Yang Zhao, Zhi-Nan Zheng, Xiang Liu, Gang Dai, San-Qing Jin
Objective The administration of preconditioned plasma collected during the late phase of preconditioning has been shown to reduce myocardial infarct size. This study aimed to investigate if preconditioned plasma could attenuate ventricular arrhythmias in a rat model in vivo. Methods Eighty rats were randomized to eight groups (10 rats/group). Two groups provided preconditioned or non-preconditioned plasma 48 h after transient limb ischaemia or the control protocol. Six groups of ischaemia-reperfusion (IR) rats received normal saline, non-preconditioned plasma, or preconditioned plasma, respectively, 1 h (groups A1, A2, A3) or 24 h (groups B1, B2, B3) before undergoing myocardial IR...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29434732/sustained-multiple-organ-ischaemia-after-transarterial-chemoembolization-with-drug-eluting-beads-for-hepatocellular-carcinoma
#8
Young Woon Kim, Jung Hyun Kwon, Soon Woo Nam, Jeong Won Jang, Hyun Suk Jung, Yu Ri Shin, Eun Su Park, Dong Jae Shim
Transarterial chemoembolization (TACE) with drug-eluting beads (DC beads) may enhance drug delivery to tumours and reduce systemic toxicity. TACE with DC beads leads to significantly fewer serious side-effects compared with conventional TACE. A 66-year-old man with hepatocellular carcinoma (HCC) complained of continuous abdominal pain 1 month after TACE with DC beads. At the time of TACE, angiography revealed severe stenosis of both hepatic arteries. The diagnostic work up on admission suggested severe bile duct injury with regional bile duct dilatation, segmental liver and spleen infarction, necrotizing pancreatitis, as well as gastric and duodenal ulcers...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29431502/mesenteric-ischaemia-an-overview-of-diagnostic-and-therapeutic-best-practice
#9
Jonathan Arnott, Shaun McGee, Mark Wills
Mesenteric ischaemia is relatively uncommon, but is an important diagnosis to remember as it can lead to significant morbidity and mortality. Improvements in clinical imaging technology have made rapid diagnosis and treatment possible, but this relies on awareness of the condition. This article summarizes current best practice in diagnosis and management of mesenteric ischaemia to guide the clinician.
February 2, 2018: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/29429146/graft-type-for-femoro-popliteal-bypass-surgery
#10
REVIEW
Graeme K Ambler, Christopher P Twine
BACKGROUND: Femoro-popliteal bypass is implemented to save limbs that might otherwise require amputation, in patients with ischaemic rest pain or tissue loss; and to improve walking distance in patients with severe life-limiting claudication. Contemporary practice involves grafts using autologous vein, polytetrafluoroethylene (PTFE) or Dacron as a bypass conduit. This is the second update of a Cochrane review first published in 1999 and last updated in 2010. OBJECTIVES: To assess the effects of bypass graft type in the treatment of stenosis or occlusion of the femoro-popliteal arterial segment, for above- and below-knee femoro-popliteal bypass grafts...
February 11, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29428538/carotid-access-for-endovascular-repair-of-aortic-pathology-a-systematic-review
#11
Thomas W Stonier, Kirtan Patel, Vamsee Bhrugubanda, Andrew Mtl Choong
BACKGROUND: Endovascular repair is now preferred to open access for the management of aortic diseases. This is typically performed via the femoral artery, however not all patients are eligible for this. This systematic review summaries the current evidence for utilising the carotid artery as an alternative access route. METHODS: A systematic review was conducted as per the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines using four electronic databases...
February 8, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29428535/diabetic-foot-limb-salvage-a-series-of-809-attempts-and-predictors-for-endovascular-limb-salvage-failure
#12
Zhiwen Joseph Lo, Zhimin Lin, Uei Pua, Lawrence Han Hwee Quek, Bien Ping Tan, Sundeep Punamiya, Glenn Wei Leong Tan, Sriram Narayanan, Sadhana Chandrasekar
BACKGROUND: To review patient characteristics and outcomes of inpatient diabetic foot limb salvage and identify risk factors predicting for endovascular limb salvage failure. METHODOLOGY: Retrospective study of limb salvage attempts in 809 patients between August 2013 and July 2015. RESULTS: 68% of our study population were male with mean age at 65 years-old and 73% presented with Rutherford grade 6 critical limb ischaemia, with the remaining 27% Rutherford grade 5...
February 8, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29423544/high-intensity-interval-training-in-hypoxia-does-not-affect-muscle-hif-responses-to-acute-hypoxia-in-humans
#13
Stefan De Smet, Gommaar D'Hulst, Chiel Poffé, Ruud Van Thienen, Emanuele Berardi, Peter Hespel
PURPOSE: The myocellular response to hypoxia is primarily regulated by hypoxia-inducible factors (HIFs). HIFs thus conceivably are implicated in muscular adaptation to altitude training. Therefore, we investigated the effect of hypoxic versus normoxic training during a period of prolonged hypoxia ('living high') on muscle HIF activation during acute ischaemia. METHODS: Ten young male volunteers lived in normobaric hypoxia for 5 weeks (5 days per week, ~ 15.5 h per day, FiO2: 16...
February 8, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29422826/role-of-plasma-growth-factor-in-the-healing-of-chronic-ulcers-of-the-lower-legs-and-foot-due-to-ischaemia-in-diabetic-patients
#14
Tomasz Miłek, Krzysztof Baranowski, Piotr Zydlewski, Piotr Ciostek, Krzysztof Mlosek, Wojciech Olszewski
Introduction: It has been demonstrated that plasma growth factor (PGF) responsible for proliferation of smooth muscle cells and fibroblasts significantly shortens treatment duration. Aim: To determine the role of human growth factor in the healing of ulcers due to ischaemic diabetic foot syndrome (DFS) following previous angioplasty of the blood vessels of the lower leg and foot. Material and methods: The study group included 50 patients with ischaemic diabetic foot complicated by lower leg ulcers in which angioplasty of the stenotic arteries in the distal lower leg and foot was performed...
December 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/29419359/minimising-failure-in-critical-lower-limb-ischaemia-intervention-adjuvant-capillary-bed-recruitment-is-the-missed-opportunity
#15
Sherif Sultan, Edel Patricia Kavanagh, Niamh Hynes
Critical limb ischaemia is the end stage of peripheral arterial disease before limb loss. Contemporary interventions to restore blood flow have high morbidity and mortality and fail to provide sustained restoration of peripheral circulation. Cell-based therapies designed to promote neovascularisation or angiogenesis have been shown in trials to be safe but clinically ineffective. Notwithstanding endless research in the area, no headway has been made in identifying a successful therapy designed specifically to target muscle disease in critical lower limb ischaemia...
January 1, 2018: Vascular
https://www.readbyqxmd.com/read/29415193/ten-year-experience-of-the-thoraco-abdominal-aortic-aneurysm-treatment-using-a-hybrid-thoracic-endovascular-aortic-repair
#16
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/29411931/neuroprotective-mechanisms-of-glucagon-like-peptide-1-based-therapies-in-ischaemic-stroke-a-systematic-review-based-on-pre-clinical-studies
#17
Ida R Marlet, Joakim N E Ölmestig, Tina Vilsbøll, Jørgen Rungby, Christina Kruuse
Glucagon-like peptide-1 (GLP-1)-based therapies, GLP-1 receptor agonists (GLP-1RAs), and dipeptidyl peptidase-4 inhibitors (DPP-4Is) are widely used for the treatment of type 2 diabetes. Increasing evidence suggests that they may provide neuroprotection. The aim of this MiniReview was to systematically evaluate the proposed mechanism of action for GLP-1-based therapies in ischaemic brain damage in animals. We performed a literature search using Medline, Embase and The Cochrane Library. GLP-1-based therapies administered before, during or after experimental stroke in diabetic and non-diabetic animals were evaluated...
February 7, 2018: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29411905/foxo1-targeting-by-capsaicin-reduces-tissue-damage-after-testicular-torsion
#18
N Javdan, S A Ayatollahi, M Iqbal Choudhary, S Al-Hasani, H Pazoki-Toroudi
Testicular torsion-related oxidative stress causes a sequential chain of DNA damage, lipid peroxidation and cell death that leads to the derangement in the sperm functions and infertility. Capsaicin that has been applied for pain relief and cancer prevention possesses antioxidant properties which can be exploited to confer cell survival under ischaemic testis damage. Wistar male rats weighing 150-200 g were randomly divided into four groups: (i) sham group (all procedures except torsion of testis), (ii) ischaemia group (TT group), (iii) three TT groups treated with different dose of capsaicin (TT + different doses of Cap) and (iv) three control groups treated with different doses of capsaicin (100, 500 and 1000 ug/ml)...
February 7, 2018: Andrologia
https://www.readbyqxmd.com/read/29407000/the-arteriolar-injury-in-hypertension
#19
Qian Ru Gu, Yang Yang Li, Guo Rong Chen, M J Quinn
In 1937, Drs. Moritz and Oldt described arteriolar injuries in the kidneys (and other viscera) in hypertension, across the age range, in both sexes, and, in different races. This hypothesis proposes that injuries to vasomotor nerves cause the arteriolar injury in the kidney in hypertension, (as well as that in the uterus in preeclampsia). Different patterns of perivascular hyalinisation in different viscera are clues to the varying causes and consequences of arteriolar injury. In the uterus there is a symmetrical, perivascular "halo of hyalinisation" that marks the lines of extension of regenerating, injured nerves to the placental bed, whereas in the kidney there is a disordered and asymmetrical "halo of hyalinisation" where persistent, and recurrent, increases in intravascular pressures interrupt development of regenerating nerves...
February 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29406178/high-sensitivity-cardiac-troponin-t-in-young-healthy-adults-undergoing-non-cardiac-surgery
#20
A Duma, C Wagner, M Titz, M Maleczek, M Hüpfl, V B Weihs, E Samaha, H Herkner, T Szekeres, M Mittlboeck, M G Scott, A S Jaffe, P Nagele
BACKGROUND: It is unclear if isolated postoperative cardiac-troponin elevation, often referred to as myocardial injury, represents a pathological event, as control studies in otherwise healthy adults are lacking. METHODS: In this single-centre prospective observational cohort study, serial high-sensitivity cardiac troponin T (hscTnT) plasma concentrations were obtained from young, healthy adults undergoing elective orthopaedic surgery at three time points: before operation, 2-6 h, and 18-30 h after surgery...
February 2018: British Journal of Anaesthesia
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