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https://www.readbyqxmd.com/read/28544893/agreement-of-invasive-and-non-invasive-blood-pressure-measurements-in-anaesthetised-pigs-using-the-surgivet-v9203
#1
Philomena P Tuohy, Anthea L Raisis, Eleanor A Drynan
The automated oscillometric method is a common method for measuring blood pressure non-invasively and is broadly and confidently used in the veterinary setting. Twenty-one pigs undergoing anesthesia for exploratory laparotomy were enrolled in a study to evaluate the performance of the Surgivet V9203 non-invasive blood pressure (NIBP) monitor. The aim was to compare measurements of arterial blood pressure obtained simultaneously using the Surgivet V9203 oscillometric system and an intra-arterial catheter-transducer system, both at the level of the metatarsus...
May 19, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28544108/elevated-intrathoracic-co2-pressure-during-thoracoscopic-surgery-decreases-regional-cerebral-oxygen-saturation-in-neonates-and-infants-a-pilot-study
#2
Felix Neunhoeffer, Steven W Warmann, Michael Hofbeck, Alisa Müller, Frank Fideler, Guido Seitz, Martin U Schuhmann, Hans-Joachim Kirschner, Matthias Kumpf, Jörg Fuchs
BACKGROUND: Intraoperative hypercapnia and acidosis are risk factors during thoracoscopy in neonates and infants. METHODS: In a prospective pilot study, we evaluated the effects of thoracoscopy in neonates and infants on cerebral microcirculation, oxygen saturation, and oxygen consumption. Regional cerebral oxygen saturation and blood flow were measured noninvasively using a new device combining laser Doppler flowmetry and white light spectrometry. Additionally, cerebral fractional tissue oxygen extraction and approximated oxygen consumption were calculated...
May 24, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28543947/%C3%AE-1-adrenoceptor-but-not-%C3%AE-2-adrenoceptor-subtype-regulates-heart-rate-in-type-2-diabetes-rats-in-vivo
#3
Rosalind F Cook, Carol T Bussey, Kimberley M Mellor, Patricia A Cragg, Regis R Lamberts
BACKGROUND: β-Adrenoceptor blockers are widely used to reduce heart rate, the strongest predictor of mortality in cardiac patients, but are less effective in diabetic patients. This study aimed to determine the specific β1 - and β2 -adrenoceptor subtype contributions to chronotropic responses in type 2 diabetes in vivo, which are currently unknown. METHODS: Type 2 diabetic and non-diabetic rats were implanted with radio-telemeters to measure arterial blood pressure and derive heart rate under conscious conditions...
May 22, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28543710/presentation-diagnosis-and-management-of-popliteal-artery-entrapment-syndrome-11-years-of-experience-with-61-legs
#4
Luc Corneloup, Claude Labanère, Laurent Chevalier, Jérémie Jaussaud, Aude Mignot, Laurent Gencel, Olivier Corneloup, Dominique Midy
BACKGROUND: Popliteal Artery Entrapment Syndrome (PAES) is still underdiagnosed yet it may significantly interfere with lifestyle, especially among young sportspeople, with symptoms like intermittent claudication. While case reports and small case series are sometimes published, studies with larger populations are quite rare. METHODS: This study summarizes our experience with PAES on 61 limbs (35 patients) over a period of 11 years, describing the demographics, the disease and the diagnostic and therapeutic methods used with PAES patients...
May 19, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28543041/the-added-value-of-cardiac-index-and-pulse-pressure-variation-monitoring-to-mean-arterial-pressure-guided-volume-therapy-in-moderate-risk-abdominal-surgery-coguide-a-pragmatic-multicentre-randomised-controlled-trial
#5
J Stens, J-P Hering, C W P van der Hoeven, A Boom, H S Traast, L E Garmers, S A Loer, C Boer
There is disagreement regarding the benefits of goal-directed therapy in moderate-risk abdominal surgery. Therefore, we tested the hypothesis that the addition of non-invasive cardiac index and pulse pressure variation monitoring to mean arterial pressure-based goal-directed therapy would reduce the incidence of postoperative complications in patients having moderate-risk abdominal surgery. In this pragmatic multicentre randomised controlled trial, we randomly allocated 244 patients by envelope drawing in a 1:1 fashion, stratified per centre...
May 25, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28542926/effect-of-spironolactone-on-exercise-tolerance-and-arterial-function-in-older-adults-with-heart-failure-with-preserved-ejection-fraction
#6
Bharathi Upadhya, William G Hundley, Peter H Brubaker, Timothy M Morgan, Kathryn P Stewart, Dalane W Kitzman
OBJECTIVES: To evaluate the effects of an aldosterone antagonist on exercise intolerance in older adults with heart failure and preserved ejection fraction (HFpEF). DESIGN: Randomized, placebo-controlled, double-blind trial. SETTING: Academic medical center, Winston-Salem, North Carolina. PARTICIPANTS: Older adults (N = 80, aged 71 ± 1; 80% female) with stable compensated HFpEF and controlled blood pressure (BP)...
May 19, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28542627/predictive-features-of-chronic-kidney-disease-in-atypical-haemolytic-uremic-syndrome
#7
Matthieu Jamme, Quentin Raimbourg, Dominique Chauveau, Amélie Seguin, Claire Presne, Pierre Perez, Pierre Gobert, Alain Wynckel, François Provôt, Yahsou Delmas, Christiane Mousson, Aude Servais, Laurence Vrigneaud, Agnès Veyradier, Eric Rondeau, Paul Coppo
Chronic kidney disease (CKD) is a frequent and serious complication of atypical haemolytic uremic syndrome (aHUS). We aimed to develop a simple accurate model to predict the risk of renal dysfunction in aHUS based on clinical and biological features available at hospital admission. Renal function at 1-year follow-up, based on an estimated glomerular filtration rate < 60mL/min/1.73m2 as assessed by the Modification of Diet in Renal Disease equation, was used as an indicator of significant CKD. Prospectively collected data from a cohort of 156 aHUS patients who did not receive eculizumab were used to identify predictors of CKD...
2017: PloS One
https://www.readbyqxmd.com/read/28542544/development-and-characterization-of-an-experimental-model-of-diet-induced-metabolic-syndrome-in-rabbit
#8
Oscar Julián Arias-Mutis, Vannina G Marrachelli, Amparo Ruiz-Saurí, Antonio Alberola, Jose Manuel Morales, Luis Such-Miquel, Daniel Monleon, Francisco J Chorro, Luis Such, Manuel Zarzoso
Metabolic syndrome (MetS) has become one of the main concerns for public health because of its link to cardiovascular disease. Murine models have been used to study the effect of MetS on the cardiovascular system, but they have limitations for studying cardiac electrophysiology. In contrast, the rabbit cardiac electrophysiology is similar to human, but a detailed characterization of the different components of MetS in this animal is still needed. Our objective was to develop and characterize a diet-induced experimental model of MetS that allows the study of cardiovascular remodeling and arrhythmogenesis...
2017: PloS One
https://www.readbyqxmd.com/read/28541911/robust-sensing-of-distal-pulse-waveforms-on-a-modified-weighing-scale-for-ubiquitous-pulse-transit-time-measurement
#9
Andrew M Carek, Omer T Inan
The measurement of aortic pulse transit time (PTT), the time for the arterial pulse wave to travel from the carotid to the femoral artery, can provide valuable insight into cardiovascular health, specifically regarding arterial stiffness and blood pressure (BP). To measure aortic PTT, both proximal and distal arterial pulse timings are required. Recently, our group has demonstrated that the ballistocardiogram signal measured on a modified weighing scale can provide an unobtrusive, yet accurate, means of obtaining a proximal timing reference; however, there are no convenient, reliable methods to extract the distal timing from a subject standing on the modified weighing scale...
May 23, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28541800/incidence-of-superimposed-preeclampsia-among-pregnant-asian-women-with-chronic-hypertension
#10
Dittakarn Boriboonhirunsarn, Apichaya Pradyachaipimol, Boonlert Viriyapak
OBJECTIVE: To determine the incidence and associated factors of superimposed preeclampsia among pregnant women with chronic hypertension. METHODS: A total of 300 pregnant women diagnosed with chronic hypertension were reviewed. Data were retrieved from medical records, including obstetric data, characteristics of hypertension, and pregnancy outcomes. Incidence of superimposed preeclampsia was estimated. Various characteristics were compared to determine associated risk factors...
May 25, 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/28541755/epinephrine-but-not-vasopressin-attenuates-the-airway-response-to-anaphylactic-shock-in-rats
#11
Feng Zheng, Ruxandra Copotoiu, Charles Tacquard, Bruno Demoulin, Jean Marc Malinovsky, Bruno Levy, Dan Longrois, Grégoire Barthel, Paul Michel Mertes, François Marchal, Silvia Demoulin-Alexikova, Olivier Collange
PURPOSE: The two life-threatening signs of anaphylactic shock (AS) are severe arterial hypotension and bronchospasm. Guidelines recommend epinephrine as first-line treatment. Arginine vasopressin (AVP) has been proposed as an alternative if epinephrine does not correct arterial hypotension. These two drugs may have beneficial, neutral or deleterious effects on airflow either directly or by modifying factors that regulate vasodilatation and/or edema in the bronchial wall. AIM OF THE STUDY: To compare the effects of epinephrine and AVP on airflow and airway leakage in a rat model of AS...
May 25, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/28541599/improvement-of-left-ventricular-diastolic-function-and-left-heart-morphology-in-young-women-with-morbid-obesity-six-months-after-bariatric-surgery
#12
Katarzyna Kurnicka, Justyna Domienik-Karłowicz, Barbara Lichodziejewska, Maksymilian Bielecki, Marta Kozłowska, Sylwia Goliszek, Olga Dzikowska-Diduch, Wojciech Lisik, Maciej Kosieradzki, Piotr Pruszczyk
BACKGROUND: Obesity contributes to left ventricular diastolic dysfunction (LVDD) and may lead to diastolic heart failure. Weight loss (WL) after bariatric surgery (BS) may influence LV morphology and function. Using echocardiography, this study assessed the effect of WL on LV diastolic function (LVDF) and LV and left atrium (LA) morphology 6 months after BS in young women with morbid obesity. METHODS: Echocardiography was performed in 60 women with BMI ≥ 40kg/m², aged 37...
May 25, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28541590/renal-denervation-interventional-radiofrequency-treatment-of-arterial-hypertension-two-years-follow-up
#13
Krzysztof Bartus, Jerzy Sadowski, Bogusław Kapelak, Radosław Litwinowicz, Jakub Podolec, Magdalena Bartus, Artur Dziewierz, Stanislaw Bartus, Wojciech Zajdel, Dhanunjaya Lakkireddy
BACKGROUND: Arterial hypertension is one of the most common chronic disease in the Western World, affecting more than 25% of adult population. AIM: The aim of this study was to assess changes in arterial blood pressure (BP) levels in hypertensive patients, after ablation of nerve terminals in renal arteries using radiofrequency energy during 24 months follow-up. METHODS AND RESULTS: Thirty two patients with diagnosed resistant hypertension (20 men and 12 women) underwent percutaneous catheter-based renal denervation of nerve terminals in renal arteries wall...
May 25, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28541158/noninvasive-optical-monitoring-of-critical-closing-pressure-and-arteriole-compliance-in-human-subjects
#14
Wesley B Baker, Ashwin B Parthasarathy, Kimberly P Gannon, Venkaiah C Kavuri, David R Busch, Kenneth Abramson, Lian He, Rickson C Mesquita, Michael T Mullen, John A Detre, Joel H Greenberg, Daniel J Licht, Ramani Balu, W Andrew Kofke, Arjun G Yodh
The critical closing pressure ( CrCP) of the cerebral circulation depends on both tissue intracranial pressure and vasomotor tone. CrCP defines the arterial blood pressure ( ABP) at which cerebral blood flow approaches zero, and their difference ( ABP -  CrCP) is an accurate estimate of cerebral perfusion pressure. Here we demonstrate a novel non-invasive technique for continuous monitoring of CrCP at the bedside. The methodology combines optical diffuse correlation spectroscopy (DCS) measurements of pulsatile cerebral blood flow in arterioles with concurrent ABP data during the cardiac cycle...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28540841/lung-or-heart-lung-transplant-in-pulmonary-arterial-hypertension-what-is-the-impact-of-systemic-sclerosis
#15
Shruti K Gadre, Omar A Minai, Xiao-Feng Wang, Qi Zhang, Marie Budev, Adriano R Tonelli
OBJECTIVES: Little is known about recipient characteristics and outcomes of patients with pulmonary arterial hypertension undergoing lung transplant, particularly those with systemic sclerosis-associated disease. Here, we describe the characteristics and outcomes of patients with pulmonary arterial hypertension undergoing lung transplant, focusing on systemic sclerosis-associated disease. MATERIALS AND METHODS: This retrospective study included pulmonary arterial hypertension patients undergoing lung or heart-lung transplant between July 1992 and August 2013 at a single center...
May 22, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28540614/a-comparison-of-volume-clamp-method-based-continuous-noninvasive-cardiac-output-cnco-measurement-versus-intermittent-pulmonary-artery-thermodilution-in-postoperative-cardiothoracic-surgery-patients
#16
Julia Y Wagner, Annmarie Körner, Leonie Schulte-Uentrop, Mathias Kubik, Hermann Reichenspurner, Stefan Kluge, Daniel A Reuter, Bernd Saugel
The CNAP technology (CNSystems Medizintechnik AG, Graz, Austria) allows continuous noninvasive arterial pressure waveform recording based on the volume clamp method and estimation of cardiac output (CO) by pulse contour analysis. We compared CNAP-derived CO measurements (CNCO) with intermittent invasive CO measurements (pulmonary artery catheter; PAC-CO) in postoperative cardiothoracic surgery patients. In 51 intensive care unit patients after cardiothoracic surgery, we measured PAC-CO (criterion standard) and CNCO at three different time points...
May 24, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28540254/doppler-ultrasonography-of-the-pectinis-oculi-artery-in-harpy-eagles-harpia-harpyja
#17
Wanderlei de Moraes, Thiago A C Ferreira, André T Somma, Zalmir S Cubas, Bret A Moore, Fabiano Montiani-Ferreira
Twenty harpy eagles (Harpia harpyja) without systemic or ocular diseases were examined to measure blood velocity parameters of the pectinis oculi artery using Doppler ultrasonography. Pectinate artery resistive index (RI) and pulsatility index (PI) were investigated using ocular Doppler ultrasonography. The mean RI and PI values across all eyes were 0.44±0.10 and 0.62±0.20 respectively. Low RI and PI values found in the harpy eagle´s pectinis oculi artery compared with the American pekin ducks one and other tissue suggest indeed a high metabolic activity in pecten oculi and corroborates the hypothesis of a nutritional function and/or intraocular pressure regulation...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28540118/spinal-cord-injury-in-the-geriatric-population-risk-factors-treatment-options-and-long-term-management
#18
REVIEW
Tochukwu C Ikpeze, Addisu Mesfin
Spinal cord injuries (SCIs) are sustained by more than 12 500 patients per year in the United States and more globally. The SCIs disproportionately affect the elderly, especially men. Approximately 60% of these injuries are sustained traumatically through falls, but nontraumatic causes including infections, tumors, and medication-related epidural bleeding have also been documented. Preexisting conditions such as ankylosing spondylitis and diffuse idiopathic skeletal hyperostosis can render the spine stiff and are risk factors as well as cervical spondylosis and ensuing cervical stenosis...
June 2017: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/28539858/relationship-between-proxies-for-type-ii-fiber-type-and-resting-blood-pressure-in-division-i-american-football-athletes
#19
Christopher A DiCesare, James R Adams, Randal P Claytor, Rose M Ward, Ronald H Cox
OBJECTIVE: The risk for cardiovascular disease is well-documented. Perhaps surprisingly, specific athletic populations, including American football players, exhibit increased risk for cardiovascular disease as presented by elevated blood pressure. There is evidence suggesting a link between muscle fiber type distribution and resting blood pressure. Acknowledging this association, it becomes important to clarify an individual's risk for developing cardiovascular disease later in adulthood...
April 2017: International Journal of Health Sciences
https://www.readbyqxmd.com/read/28539568/clinical-and-hemodynamic-effects-of-endothelin-receptor-antagonists-in-patients-with-heart-failure
#20
Bo Xiong, Dan Nie, Yin Cao, Yanke Zou, Yuanqing Yao, Jie Tan, Jun Qian, Shunkang Rong, Chunbin Wang, Jing Huang
The clinical benefit of endothelin receptor antagonists (ERA) for the management of heart failure (HF) remains controversial. To examine this question, we performed a meta-analysis of randomized controlled trials (RCTs) to investigate the clinical and hemodynamic effects of ERA in HF patients.We searched the PubMed, Medline, Embase, and Cochrane Library from inception to March 20, 2016 to identify the pertinent studies. Risk ratio (RR) and weighted mean difference (WMD) were calculated using a fixed or random effect model...
May 23, 2017: International Heart Journal
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