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https://www.readbyqxmd.com/read/28725115/maternal-and-fetal-arterial-blood-gas-data-in-normotensive-singleton-isoflurane-anesthetized-sheep-at-124-126-days-of-gestation
#1
Claire M Loughran, Matthew W Kemp, Gabrielle C Musk
The aim of this case series was to describe the differences between maternal and fetal blood-gas results during anesthesia. Sixteen singleton adult merino ewes weighing 60.1 ± 5.1 kg at 125.7 d (124 to 126 d) gestation were anesthetized. Maternal (radial) and fetal (umbilical) arterial blood gas samples were collected 79 ± 6 min after the start of anesthesia if maternal mean arterial pressure (MAP) was stable and > 65 mmHg. Fetal pH, partial arterial pressure of oxygen (PaO2), glucose, arterial hemoglobin oxygen saturation (SaO2), sodium, and chloride were significantly lower and fetal partial arterial pressure of carbon dioxide (PaCO2), lactate, hematocrit, total hemoglobin, potassium, and calcium were significantly higher than maternal blood-gas values...
July 2017: Canadian Journal of Veterinary Research, Revue Canadienne de Recherche Vétérinaire
https://www.readbyqxmd.com/read/28724946/diastolic-augmentation-index-improves-radial-augmentation-index-in-assessing-arterial-stiffness
#2
Yang Yao, Liling Hao, Lisheng Xu, Yahui Zhang, Lin Qi, Yingxian Sun, Benqiang Yang, Frans N van de Vosse, Yudong Yao
Arterial stiffness is an important risk factor for cardiovascular events. Radial augmentation index (AI r ) can be more conveniently measured compared with carotid-femoral pulse wave velocity (cfPWV). However, the performance of AI r in assessing arterial stiffness is limited. This study proposes a novel index AI rd , a combination of AI r and diastolic augmentation index (AI d ) with a weight α, to achieve better performance over AI r in assessing arterial stiffness. 120 subjects (43 ± 21 years old) were enrolled...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724547/long-term-effects-of-a-renin-inhibitor-versus-a-thiazide-diuretic-on-arterial-stiffness-and-left-ventricular-diastolic-function-in-elderly-hypertensive-patients
#3
Yoshiyuki Okada, Shigeki Shibata, Naoki Fujimoto, Stuart Alexander Best, Benjamin D Levine, Qi Fu
Arterial stiffness and cardiac function are important predictors of cardiovascular events in patients with hypertension even with adequate blood pressure (BP) control. We evaluated whether a direct renin inhibitor, aliskiren, reduces arterial stiffness and modulates left ventricular function compared with a diuretic, hydrochlorothiazide, in elderly hypertensives. Twenty one hypertensives [67±14 (SD) yrs] were randomly assigned to receive 6-month aliskiren (n=11) or hydrochlorothiazide (n=10) based therapy...
July 19, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28718333/anomalous-radial-artery-as-an-incidental-finding-during-a-routine-carpal-tunnel-release
#4
Charles A Gober, Tarik Mujadzic, John E Hershman, Mirsad M Mujadzic
BACKGROUND: Compression of the median nerve at the wrist, or carpal tunnel syndrome, is the most commonly recognized nerve entrapment syndrome. Carpal tunnel syndrome is usually caused by compression of the median nerve due to synovial swelling, tumor, or anomalous anatomical structure within the carpal tunnel. METHODS: During a routine carpal tunnel decompression, a large vessel was identified within the carpal tunnel. RESULTS: The large vessel was the radial artery...
February 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28717826/operator-radiation-exposure-during-transradial-coronary-angiography-effect-of-single-vs-double-catheters
#5
A Tarighatnia, L Pourafkari, A Farajollahi, A H Mohammadalian, M Ghojazadeh, N D Nader
BACKGROUND: The right radial artery has gained popularity as the preferred access site for coronary angiography. To save time and limit the radiation exposure of operators and patients, newly designed catheters can be used to access both the right and left coronary arteries. The aim of this study was to compare operator radiation exposure between single-catheter (SCA) and two-catheter approaches (TCA). METHODS: In all, 256 patients undergoing diagnostic coronary angiography via the right radial artery in a high-volume medical center were randomized to either the SCA or TCA group...
July 17, 2017: Herz
https://www.readbyqxmd.com/read/28716522/exercise-individualized-by-trimpi-method-reduces-arterial-stiffness-in-early-onset-type-2-diabetic-patients-a-randomized-controlled-trial-with-aerobic-interval-training
#6
Alfonso Bellia, Ferdinando Iellamo, Elisa De Carli, Aikaterini Andreadi, Elvira Padua, Mauro Lombardo, Giuseppe Annino, Francesca Campoli, Sara Tartaglione, Stefano D'Ottavio, David Della-Morte, Davide Lauro
BACKGROUND: Arterial stiffness (AS) and baroreflex sensitivity (BRS) are subclinical markers of vascular diseases in type 2 diabetes (T2D). We evaluated the effects of aerobic interval training (AIT), with loads prescribed according to individual heart rate and lactate profiling obtained during a baseline treadmill test (TRIMPi method), on AS and BRS in patients with early-onset T2D without cardiovascular complications. POPULATION STUDY AND METHODS: Twenty-two sedentary overweight T2D patients (aged 57±7years) were randomized to 12-weeks open-label of supervised AIT by TRIMPi (n=8) or unsupervised physical activity as per usual care (SOC) (n=11)...
June 17, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28714239/self-powered-real-time-arterial-pulse-monitoring-using-ultrathin-epidermal-piezoelectric-sensors
#7
Dae Yong Park, Daniel J Joe, Dong Hyun Kim, Hyewon Park, Jae Hyun Han, Chang Kyu Jeong, Hyelim Park, Jung Gyu Park, Boyoung Joung, Keon Jae Lee
Continuous monitoring of an arterial pulse using a pressure sensor attached on the epidermis is an important technology for detecting the early onset of cardiovascular disease and assessing personal health status. Conventional pulse sensors have the capability of detecting human biosignals, but have significant drawbacks of power consumption issues that limit sustainable operation of wearable medical devices. Here, a self-powered piezoelectric pulse sensor is demonstrated to enable in vivo measurement of radial/carotid pulse signals in near-surface arteries...
July 17, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28713704/the-anterior-interosseus-artery-perforator-flap-anatomical-dissections-and-clinical-study
#8
Nikhil S Panse, Sheetal B Joshi, Parag B Sahasrabudhe, B Bahetee, Pradnya Gurude, Ajay Chandanwale
BACKGROUND: Reconstruction of upper extremity deformities continues to be a challenge to the reconstructive surgeon. Various loco regional, distant and free flaps are available for reconstruction. However, each has its own set of advantages and disadvantages. Of the commonly performed local flaps, radial artery forearm flap, and the posterior interosseus artery flap stand out prominently. Recently, perforator propeller flaps have been used for resurfacing the upper extremity. The anterior interosseus artery perforator flap is an uncommonly used and described flap...
May 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/28708754/the-effect-of-vasodilatory-medications-on-radial-artery-spasm-in-patients-undergoing-transradial-coronary-artery-procedures-a-systematic-review
#9
Elizabeth Curtis, Ritin Fernandez, Astin Lee
BACKGROUND: The uptake of percutaneous coronary procedures via the radial artery has increased internationally due to the decreased risk of complications and increased patient satisfaction. The increased susceptibility of the radial artery to spasm however presents a potential risk for procedural failure. Although most experts agree on the need for prophylactic medications to reduce radial artery spasm, currently there is inconsistency in literature regarding the most effective vasodilatory medication or combination of medications...
July 2017: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/28706592/inadvertent-cardiac-phlebography
#10
Konstantinos Aznaouridis, Constantina Masoura, Stylianos Kastellanos, Albert Alahmar
We are reporting a case of a 80-year-old lady with effort angina who underwent coronary angiography through the right radial artery, using a dedicated radial multipurpose 5 French Optitorque Tiger catheter. The catheter was advanced into the left ventricle and a left ventriculogram was obtained, while the catheter appeared optimally placed at the centre of the ventricle and the pressure waveform was normal. A large posterior interventricular vein draining into the right atrium was opacified, presumably because the catheter's end hole inadvertently cannulated an endocardial opening of a small thebesian vein, with subsequent retrograde filling of the epicardial vein...
June 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28704258/effect-of-alternating-standing-and-sitting-on-blood-pressure-and-pulse-wave-velocity-during-a-simulated-workday-in-adults-with-overweight-obesity
#11
Bethany Barone Gibbs, Robert J Kowalsky, Sophy J Perdomo, John M Taormina, Jeffrey R Balzer, John M Jakicic
OBJECTIVE: Reducing prolonged sitting at work has been recommended by an expert panel, but whether intermittent standing improves vascular health is unclear. We aimed to test whether using a sit-stand desk could reduce blood pressure (BP) and pulse wave velocity (PWV) during a simulated workday. METHODS: Overweight/obese adults with pre-to-Stage 1 hypertension completed a randomized crossover study with two simulated workday conditions: STAND-SIT (alternating standing and sitting condition every 30 min) and SIT (continuous sitting condition)...
July 12, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28702112/patient-preference-for-transradial-access-over-transfemoral-access-for-cerebrovascular-procedures
#12
Sudhakar R Satti, Ansar Z Vance, Sohil N Golwala, Tim Eden
PURPOSE: Shared decision-making, when physicians and patients collaborate and agree on health care decisions, is a key tenant of patient-centered care. Choice of access site for neurovascular procedures is rarely a shared decision point between physicians and patients. We present our initial evaluation of patient preference for radial over femoral access for cerebrovascular procedures. MATERIALS AND METHODS: IRB approved single-center, prospective, and consecutive survey of all patients undergoing transradial access for cerebrovascular imaging and intervention...
June 2017: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/28699368/impact-of-blood-pressure-lesion-level-and-physical-activity-on-aortic-augmentation-index-in-persons-with-sci
#13
Caitlyn G Katzelnick, Joseph P Weir, Nancy Chiaravalotti, Glenn Wylie, Trevor Dyson-Hudson, William A Bauman, Jill M Wecht
Individuals with chronic spinal cord injury (SCI) are at a heightened risk of cardiovascular disease (CVD) due to autonomic nervous system dysfunction, physical inactivity and increased inflammatory processes. Arterial stiffness (AS) is recognized as an independent risk factor for CVD and, specifically, pulse wave analysis (PWA) has proven to be a useful tool to predict and track structural arterial changes that reflect arteriosclerosis. The augmentation index (AI) can be used to estimate AS and is derived from the amplitude and timing of the blood pressure (BP) wave reflection in a peripheral artery...
July 12, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28692445/normal-cerebral-vascular-pulsations-in-humans-changes-with-age-and-implications-for-microvascular-disease
#14
Mi O Kim, Yan Li, Fangfei Wei, Jiguang Wang, Michael F O'Rourke, Audrey Adji, Alberto P Avolio
BACKGROUND: Cerebral syndromes in older humans, secondary stroke in younger persons following trauma, and sickle cell anaemia in children, are linked by unexplained microvascular damage and high cerebral pressure or flow pulsations. The aim of this study was to characterize age-related pressure and flow waveforms patterns entering the brain, to explain these in terms of disturbed physiological function, and to consider clinical implications. METHOD: Blood flow velocity waves were measured in four cerebral vascular territories by transcranial Doppler of 1020 apparently normal patients (497 men, 21-78 years)...
July 7, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28689370/intra-target-microdosing-a-novel-drug-development-approach-proof-of-concept-safety-and-feasibility-study-in-humans
#15
T Burt, D MacLeod, K Lee, A Santoro, D K DeMasi, T Hawk, M Feinglos, M Rowland, R J Noveck
Intra-target microdosing (ITM) is a novel drug development approach aimed at increasing the efficiency of first-in-human (FIH) testing of new molecular entities (NMEs). ITM combines intra-target drug delivery and "microdosing," the subpharmacological systemic exposure. We hypothesized that when the target tissue is small (about 1/100th of total body mass), ITM can lead to target therapeutic-level exposure with minimal (microdose) systemic exposure. Each of five healthy male volunteers received insulin microdose into the radial artery or full therapeutic dose intravenously in separate visits...
July 8, 2017: Clinical and Translational Science
https://www.readbyqxmd.com/read/28688136/ultrasound-versus-traditional-palpation-to-guide-radial-artery-cannulation-in-critically-ill-children-a-randomized-trial
#16
Nattachai Anantasit, Pimporn Cheeptinnakorntaworn, Anant Khositseth, Rojjanee Lertbunrian, Marut Chantra
OBJECTIVES: To identify success rates for radial artery cannulation in a pediatric critical care unit using either palpation or ultrasound guidance to cannulate the radial artery. METHODS: A prospective randomized comparative study of critically ill children who required invasive monitoring in a tertiary referral center was conducted. All patients were randomized by a stratified block of 4 to either ultrasound-guided or traditional palpation radial artery cannulation...
July 8, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28683990/how-safe-is-it-to-train-residents-to-perform-coronary-surgery-with-multiple-arterial-grafting-nineteen-years-of-training-at-a-single-institution
#17
Umberto Benedetto, Massimo Caputo, Mario Gaudino, Hunaid Vohra, Pierpaolo Chivasso, Alan Bryan, Gianni D Angelini
The learning curve of coronary artery bypass grafting (CABG) with multiple arterial grafting (MAG) is perceived to be associated with increased surgical morbidity and potentially poorer long-term outcomes. We compared short-term outcomes and long-term survival in patients who underwent CABG with MAG performed by attending surgeons or resident trainees at a single institution over a period of 19 years. Using our institutional database, we identified 3039 patients undergoing MAG from 1996-2015. Of those, 958 (32%) were operated on by residents and 2081 (68%) by attending surgeons...
April 2017: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28683960/arterial-stiffening-with-exercise-in-patients%C3%A2-with-heart-failure-and-preserved%C3%A2-ejection-fraction
#18
Yogesh N V Reddy, Mads J Andersen, Masaru Obokata, Katlyn E Koepp, Garvan C Kane, Vojtech Melenovsky, Thomas P Olson, Barry A Borlaug
BACKGROUND: Aortic stiffening and reduced nitric oxide (NO) availability may contribute to the pathophysiology of heart failure with preserved ejection fraction (HFpEF). OBJECTIVES: This study compared indices of arterial stiffness at rest and during exercise in subjects with HFpEF and hypertensive control subjects to examine their relationships to cardiac hemodynamics and determine whether exertional arterial stiffening can be mitigated by inorganic nitrite. METHODS: A total of 22 hypertensive control subjects and 98 HFpEF subjects underwent hemodynamic exercise testing with simultaneous expired gas analysis to measure oxygen consumption...
July 11, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28682811/posterior-tibial-artery-as-an-alternative-to-the-radial-artery-for-arterial-cannulation-site-in-small-children-a-randomized-controlled-study
#19
Eun-Hee Kim, Ji-Hyun Lee, In-Kyung Song, Jin-Tae Kim, Won-Jong Lee, Hee-Soo Kim
BACKGROUND: We evaluated the posterior tibial artery as an alternative arterial cannulation site to the radial artery in small children. METHODS: A two-stage study was conducted. First, we evaluated the anatomical characteristics of the posterior tibial artery compared with the radial and dorsalis pedis arteries. Next, a parallel-arm single-blind randomized controlled study compared the initial success rate of ultrasound-guided arterial cannulation among three arteries as a primary outcome...
July 5, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28682245/a-fiber-bragg-grating-sensor-for-radial-artery-pulse-waveform-measurement
#20
Dagong Jia, Jing Chao, Shuai Li, Hongxia Zhang, Yingzhan Yan, Tiegen Liu, Ye Sun
In this paper, we report the design and experimental validation of a novel optical sensor for radial artery pulse measurement based on fiber Bragg grating (FBG) and lever amplification mechanism. Pulse waveform analysis (PWA) is a diagnostic tool for clinical examination and disease diagnosis. High fidelity radial artery pulse waveform has been investigated in clinical studies for estimating central aortic pressure which is proved to be predictors of cardiovascular diseases. As a three-dimensional cylinder, the radial artery needs to be examined from different locations to achieve optimal pulse waveform for estimation and diagnosis...
June 30, 2017: IEEE Transactions on Bio-medical Engineering
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