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Cuff pressure

Arnav Srivastava, Gregory A Joice, Hiten D Patel, Madeleine G Manka, Nikolai A Sopko, E James Wright
BACKGROUND: Up to 50% of patients receiving an artificial urinary sphincter (AUS) require surgical revision after initial placement. However, the literature is heterogeneous regarding the leading causes of AUS failure and appropriate surgical management. OBJECTIVE: To inform a revision approach by tabulating the causes of AUS failure, assessing AUS component survival, and examining the single-component revision efficacy. DESIGN, SETTING, AND PARTICIPANTS: We retrospectively reviewed 168 patients receiving AUS placements carried out by a single surgeon from 2008 to 2016 at a high-volume academic institution...
March 12, 2018: European Urology Focus
Emmanuelle Jaillette, Benoit Voisin, Anahita Rouzé, Saad Nseir
No abstract text is available yet for this article.
April 2018: Critical Care Medicine
Neil D Patel, Patrick M Sullivan, Cheryl M Takao, Sarah Badran, Joseph Ahdoot, Frank F Ing
BACKGROUND: One indication for intervention in coarctation of the aorta is a peak-to-peak gradient >20 mmHg. Gradients may be masked in patients under general anaesthesia and may be higher during exercise. Isoproterenol was given during cardiac catheterisation to simulate a more active physiologic state. OBJECTIVES: We aimed to describe the haemodynamic effects of isoproterenol in patients with coarctation and the impact of intervention on the elicited gradients...
March 14, 2018: Cardiology in the Young
Arnaud Hubert, Virginie Le Rolle, Christophe Leclercq, Elena Galli, Eigil Samset, Cyrille Casset, Philippe Mabo, Alfredo Hernandez, Erwan Donal
Purpose: The area of left ventricular (LV) pressure-strain loop (PSL) is used as an index of regional myocardial work. The purpose of the present work is to compare the main segmental PSL markers and the derived global work indices, when they are calculated using an estimated pressure signal or an observed pressure signal. Methods and results: In nine patients implanted with a bi-ventricular pace-maker (CRT), LV pressure was invasively measured in five conditions: CRT-off, LV-pacing, right ventricular-pacing and two different CRT-pacing...
February 26, 2018: European Heart Journal Cardiovascular Imaging
Jane Goudge, Tobias Chirwa, Sandra Eldridge, Francesc Xavier F Gómez-Olivé, Chodziwadziwa Kabudula, Felix Limbani, Eustasius Musenge, Margaret Thorogood
Introduction: In low/middle-income countries with substantial HIV and tuberculosis epidemics, health services often neglect other highly prevalent chronic conditions, such as hypertension, which as a result are poorly managed. This paper reports on a study to assess the effect on hypertension management of lay health workers (LHW) working in South African rural primary healthcare clinics to support the provision of integrated chronic care. Methods: A pragmatic cluster randomised trial with a process evaluation in eight rural clinics assessed the effect of adding two LHWs supporting nurses in providing chronic disease care in each intervention clinic over 18 months...
2018: BMJ Global Health
Esther Oluwasola Aluko, Temidayo Olutayo Omobowale, Ademola Adetokunbo Oyagbemi, Olumuyiwa Abiola Adejumobi, Temitayo Olabisi Ajibade, Adesoji Adedipe Fasanmade
Nitric oxide (NO) is major endothelial relaxing factor and reduction in its bioavailabilty has been linked to hypertension. Furthermore, high lipid content is a strong risk factor predisposing to cardiovascular diseases. The principal focus of this study was to investigate the effect of blockade of nitric oxide synthase (NOS) on serum lipid content in rats. Male Wistar rats (150-170 g, n = 15) were randomly divided into two groups designated control (n = 5), and L-Name group (n = 10) and were gavage with distilled water and 60 mg/kg of L-NAME respectively daily for three weeks...
March 8, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Mark Golberg, Joaquin Ruiz-Rivas, Sagi Polani, Yevgeny Beiderman, Zeev Zalevsky
Blood pressure (BP) is usually measured either invasively, by an intra-arterial catheter, or noninvasively, by a cuff-based sphygmomanometer. While the invasive method is continuous and more accurate, it has the risk of infection and generally is not comfortable for the patient. On the other hand, the cuff-based measurement is safer but less reliable and infrequent. Therefore, a reliable continuous noninvasive BP measurement is highly desirable. In this work, we propose a remote optical system, based on temporal analysis of secondary reflected speckle patterns, for computing a subject's pulse transit time (PTT)...
March 1, 2018: Applied Optics
Rebeca Caldeira Machado Berger, Acaris Benetti, Adriana Castello Costa Girardi, Ludimila Forechi, Rafaella Martins de Oliveira, Paula Frizera Vassallo, José Geraldo Mill
BACKGROUND: High sodium intake contributes to the pathogenesis of hypertension and adversely affects cardiac function. Conversely, sodium reduction is associated with a blood pressure decrease and improved cardiovascular function. However, the mechanisms that underlie the cardiac effects induced by salt intake in hypertension have not been fully elucidated. Ca2+ handling is critical for efficient myocardial function; thus, we aimed to investigate the long-term effects of diets with different salt contents on cardiac function and Ca2+ handling proteins in spontaneously hypertensive rats (SHRs)...
March 5, 2018: American Journal of Hypertension
Anand Chandrasekhar, Chang-Sei Kim, Mohammed Naji, Keerthana Natarajan, Jin-Oh Hahn, Ramakrishna Mukkamala
High blood pressure (BP) is a major cardiovascular risk factor that is treatable, yet hypertension awareness and control rates are low. Ubiquitous BP monitoring technology could improve hypertension management, but existing devices require an inflatable cuff and are not compatible with such anytime, anywhere measurement of BP. We extended the oscillometric principle, which is used by most automatic cuff devices, to develop a cuff-less BP monitoring device using a smartphone. As the user presses her/his finger against the smartphone, the external pressure of the underlying artery is steadily increased while the phone measures the applied pressure and resulting variable-amplitude blood volume oscillations...
March 7, 2018: Science Translational Medicine
Cynthia M F Monaco, Paula M Miotto, Jason S Huber, Luc J C van Loon, Jeremy A Simpson, Graham P Holloway
Supplementation with dietary inorganic nitrate (NO3 - ) is increasingly recognized to confer cardioprotective effects in both healthy and clinical populations. While the mechanism(s) remain ambiguous, in skeletal muscle, the oral consumption of sodium nitrate has been shown to improve mitochondrial efficiency. Whether sodium nitrate has similar effects on mitochondria within the heart is unknown. Therefore, we comprehensively investigated the effect of sodium nitrate supplementation on in vivo left ventricular (LV) function and mitochondrial bioenergetics...
March 7, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
Takashi Juri, Koichi Suehiro, Aya Kimura, Akira Mukai, Katsuaki Tanaka, Tokuhiro Yamada, Takashi Mori, Kiyonobu Nishikawa
This study assessed the ability of a continuous non-invasive blood pressure (BP) monitoring system to reduce intra-anesthetic hemodynamic fluctuation compared with intermittent BP cuff measurement. Forty patients undergoing total knee arthroplasty under general anesthesia were enrolled and randomly divided into two groups (Control and CS group). BP management was performed using the same protocol with BP measured by intermittent BP cuff in the Control and that by continuous non-invasive BP monitoring in the CS group...
March 6, 2018: Journal of Clinical Monitoring and Computing
Kannayiram Alagiakrishnan, Ruojin Bu, Peter Hamilton, Ambikaipakan Senthilselvan, Raj Padwal
Background: Orthostatic hypotension (OH) is associated with falls and cardiovascular events. There is growing evidence that central blood pressure (CBP) is better than peripheral blood pressure (PBP) in predicting adverse outcomes. The objectives of this study were to assess 1) the prevalence of OH identified using PBP and CBP and the levels of agreement, 2) the respective associations between OH and falls and cardiovascular comorbidities, by PBP and CBP, and 3) the association of OH with arterial wall stiffness markers (augmentation pressure (AP) and augmentation index (AI))...
April 2018: Journal of Clinical Medicine Research
Yelena Bogdan, David L Helfet
Although tourniquets are commonly used in patients with limb trauma patients, both in the acute and elective settings, no set protocols exist for their indications, contraindications, or proper use. This article addresses the current literature on optimal pressure, timing, cuff design, and complications of tourniquets in trauma patients. General issues are discussed, followed by those specific to upper and lower extremities. Lastly, serious complications, such as pulmonary embolism, are described.
April 2018: Orthopedic Clinics of North America
Y X Gao, Y T Liu, Y Y Zhang, J J Qiu, T T Zhao, C A Yu, J G Zheng
Objective: To establish the mouse aorta dissection (AD) model through drinking water containing β-aminopropionitrile (BAPN). Methods: Forty 3-week-old C57B1/6J male mice were divided into four groups according to randomized block design: control, 0.2, 0.4 and 0.8 g·kg(-1)·d(-1) BAPN groups (dissolving respective dose of BAPN in the drinking water, n= 10 each group). Arterial systolic blood pressure and heart rate were measured weekly in conscious, restrained mice using a noninvasive computerized tail-cuff system...
February 24, 2018: Zhonghua Xin Xue Guan Bing za Zhi
Tung-Chen Yeh, Ching-Sen Shin, Hsin-Hung Chen, Chi-Cheng Lai, Gwo-Ching Sun, Ching-Jiunn Tseng, Pei-Wen Cheng
Resveratrol is a polyphenol with pleiotropic effects against oxidative damage that has been widely implicated in the lowering of hypertension risk. The purpose of this study was to determine whether improve NO release in the brain either through the activation of AMPK or reduced Rac1-induced ROS generation, thereby reducing BP in rats with fructose-induced hypertension. The rats were fed with 10% fructose or crestor (rosuvastatin; 1.5 mg/kg/day) and resveratrol (10 mg/kg/day) treatment for 1 week, the systolic blood pressure (SBP) of the rats were measured by tail-cuff method...
March 1, 2018: Journal of Applied Physiology
Max Chacón, Sun-Ho Noh, Jean Landerretche, José L Jara
OBJECTIVE: We analyzed the performance of linear and nonlinear models to assess dynamic cerebral autoregulation (dCA) from spontaneous variations in healthy subjects and compared it with the use of two known maneuvers to abruptly change arterial blood pressure (BP): thigh cuffs and sit-to-stand. MATERIALS AND METHODS: Cerebral blood flow velocity and BP were measured simultaneously at rest and while the maneuvers were performed in 20 healthy subjects. To analyze the spontaneous variations, we implemented two types of models using support vector machine (SVM): linear and nonlinear finite impulse response models...
2018: Acta Neurochirurgica. Supplement
Yasuharu Tabara, Michiya Igase, Kazuya Setoh, Takahisa Kawaguchi, Yoko Okada, Maya Ohara, Yoshimitsu Takahashi, Shinji Kosugi, Yasumasa Ohyagi, Tetsuro Miki, Takeo Nakayama, Katsuhiko Kohara, Fumihiko Matsuda
Clinical implication of a high ankle-brachial index (ABI) is not well known. Based on our previous study, we suspected that body composition may be a determinant of a high ABI and may consequently modulate the clinical significance of a high ABI. Datasets of two studies with independent cohorts, the anti-aging study cohort (n = 1765) and the Nagahama study cohort (n = 8,039), were analyzed in this study, in which appendicular muscle mass was measured by computed tomography and bioelectrical impedance analysis, respectively...
February 28, 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
Xin Ni, Liang Zhang, Min Peng, Tu-Wang Shen, Xiu-Shi Yu, Li-Ya Shan, Li Li, Jun-Qiang Si, Xin-Zhi Li, Ke-Tao Ma
BACKGROUND Hydrogen sulfide (H2S) has anti-inflammatory and anti-hypertensive effects, and connexins (Cxs) are involved in regulation of immune homeostasis. In this study, we explored whether exogenous H2S prevents hypertensive inflammation by regulating Cxs expression of T lymphocytes in spontaneously hypertensive rats (SHR). MATERIAL AND METHODS We treated SHR with sodium hydrosulfide (NaHS) for 9 weeks. Vehicle-treated Wistar-Kyoto rats (WKYs) were used as a control. The arterial pressure was monitored by the tail-cuff method, and vascular function in basilar arteries was examined by pressure myography...
February 27, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Fazhan Zhou, Wei Song, Zilong Wang, Luhua Yin, Shen Yang, Fubai Yang, Zhaofeng Song, Yaguang Song, Huanyi Zhang, Fengjie Qiao, Zhimian Zhang
OBJECTIVE: The aim of this study was to explore the clinical effects of remote ischemic preconditioning (RIPC) on contrast-induced nephropathy after percutaneous coronary intervention (PCI) in patients with acute coronary syndrome (ACS). PATIENTS AND METHODS: The study was a single-center, prospective, randomized, controlled study. A total of 161 patients with ACS and the rate of estimate glomerular filtration (eGFR) 15 to 70 mL/min/1.73 m2 undergoing PCI were randomly assigned to RIPC group (induced by 4 times of 5-minute inflations of a blood pressure cuff to 200 mmHg around the upper arm, followed by 5-min intervals of reperfusion at 1 hour before PCI therapy) or control group (an uninflated cuff around the arm)...
January 2018: Medicine (Baltimore)
P Jaiswal, J E Yap, B M Attar, Y Wang, V Kotwal
No abstract text is available yet for this article.
March 2018: Journal of Gastroenterology and Hepatology
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