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Pulse check

Xiaoyong Li, Juan Fan, Jinyu Ma, Guoli Wang, Cheng Jin
We apply the optimization method suggested by Jin et al. [Nat. Commun.5, 4003 (2014)24873949] to a three-color laser-field synthesizer in a recent experiment by Burger et al. [Opt. Express25(25), 31130 (2017)29245790] for efficient high-order harmonic generation (HHG). With the experimental laser parameters being precisely tuned according to those returned by the genetic optimization, the three-color waveform composed by a 790-nm laser with its second and third harmonic fields, can enhance the macroscopic HHG yields by one to two orders with only 80% pulse energy compared to the fundamental single-color field...
January 21, 2019: Optics Express
Tadasu Kojima, Go Hirose, Shuuhei Komatsu, Taito Oshima, Kentaro Sugisaki, Tomohiro Tomiyasu, Noriko Yoshikawa, Muneharu Yamada, Takashi Oda
BACKGROUND: Anti-glomerular basement membrane (GBM) glomerulonephritis does not usually coexist with another glomerulonephritis such as IgA nephropathy. We present a rare case having a combination of these two diseases, and furthermore, histological evaluation could be performed before and after the development of anti-GBM glomerulonephritis over a period of only10 months. CASE PRESENTATION: A 66-year-old woman was admitted with complaints of microscopic hematuria and mild proteinuria for the past 3 years...
January 25, 2019: BMC Nephrology
Xiaodong Chen, Hailei Liu, Yi Zhang, Chunru Wang, Di Xu, Bing Yang, Weizhu Ju, Fengxiang Zhang, Hongwu Chen, Kejiang Cao, Minglong Chen
BACKGROUND: Variation of atrial electromechanical delay (AED) in early phase after catheter ablation in patients with atrial fibrillation is lacking. METHODS: 55 consecutive patients restored sinus rhythm after ablation were included. Echocardiography was performed at 4 hours, 1 day and 3 days after radiofrequency catheter ablation, and AED was measured simultaneously by echocardiography with pulse Doppler imaging and pulse wave tissue Doppler imaging (PW-TDI)...
January 11, 2019: Pacing and Clinical Electrophysiology: PACE
Somayeh Mousavi Nodoushan, Navid Nasirizadeh, Jafar Amani, Raheleh Halabian, Abbas Ali Imani Fooladi
Detection of staphylococcal enterotoxin B (SEB) as a bacterial toxin causing severe food poisoning is of great importance. Herein, we developed an electrochemical aptasensor for SEB detection using a screen printed electrode modified with reduced graphene oxide (rGO) and gold nano-urchins (AuNUs). Afterward, the single-stranded DNA probe was attached to the surface of AuNUs on the modified electrode and then the specific aptamer was attached to the probe. In the presence of SEB molecules, the aptamer detached from the electrode surface and after applying the electrochemical signal generator, hematoxylin and the peak current of differential pulse voltammetry (DPV) were recorded...
December 16, 2018: Biosensors & Bioelectronics
Antonio Scarano, Felice Lorusso, Alessandro Di Cerbo, Alberta Greco Lucchina, Francesco Carinci
OBJECTIVES: Vascularized soft tissue flaps are often harvested from hair-bearing areas, such as the radial forearm or anterolateral thigh, making their use in oral reconstruction problematic due to postoperative hair growth. The presence of intact hair follicles in free tissue transfer and continued hair growth at the recipient site can result in difficulties with oral hygiene, intraoral irritation, food trapping, and patient distress. This study was to evaluate the intraoral efficacy and safety of a diode laser 808 nm when used for hair removal...
January 6, 2019: Lasers in Surgery and Medicine
Tatjana Gazibara, Megan Wiltshire-Fletcher, Gorica Maric, Dusko Kozic, Darija Kisic-Tepavcevic, Tatjana Pekmezovic
BACKGROUND: An increasing number of international students has been enrolling in medical studies in the English language offered by the countries of Eastern Europe. Development of practical skills is likely more challenging when students learn in the English language, while their patients are non-English speaking persons. AIMS: To evaluate self-perception of practical skills of medical students in the English language program. METHODS: From December 2016 to December 2017, a total of 52 students from the Studies in English program of two universities in Serbia were included in the study...
December 19, 2018: Irish Journal of Medical Science
Caroline Ranger, Marie-Rose Paradis, Judy Morris, Roger Perron, Pierre Drolet, Alexis Cournoyer, Jean Paquet, Arnaud Robitaille
Background: Transcutaneous cardiac pacing (TCP) is recommended to treat unstable bradycardia. Simulation might improve familiarity with this low-frequency procedure. Current mannequins fail to reproduce key features of TCP, limiting their usefulness. The objective of this study was to measure the impact of a modified high-fidelity mannequin on the ability of junior residents to achieve six critical tasks for successful TCP. Methods: First-year residents from various postgraduate programs taking an advanced cardiovascular life support (ACLS) course were enrolled two consecutive years (2015 and 2016)...
2018: Advances in Simulation
Ian Solsky, William Berry, Lizabeth Edmondson, Janaka Lagoo, Joshua Baugh, Alex Blair, Sara Singer, Alex B Haynes
BACKGROUND: The World Health Organization's (WHO) surgical safety checklist is meant to be customized to facilitate local implementation, encourage full-team participation, and promote a culture of safety. Although it has been globally adopted, little is known about the extent of checklist modification and the type of changes made. METHODS: Nonsubspecialty surgical checklists were obtained through online search and targeted hospital requests. A detailed coding scheme was created to capture modifications to checklist content and formatting...
October 24, 2018: Journal of Surgical Research
Yongmei Liu, Peiling Zhao, Mingliang Cheng, Lei Yu, Zhuo Cheng, Linda Fan, Chi Chen
BACKGROUND: Previous studies have revealed that triglyceride to high-density lipoprotein cholesterol (HDL-C) ratio (henceforth TG/HDL-C) is one of the major risk factors for cardiovascular disease, insulin resistance and metabolism syndrome. However, there are fewer investigations of the correlations between the aspartate aminotransferase (AST) to alanine aminotransferase (ALT) ratio and brachial ankle pulse wave velocity (baPWV). This study was undertaken to investigate the relationship between the AST to ALT ratio and brachial-ankle pulse wave velocity (baPWV) in a Japanese population...
December 3, 2018: Lipids in Health and Disease
Atsushi Nakagomi, Yuko Sunami, Sho Okada, Takehiko Fujisawa, Yoshio Kobayashi
AIM: One-hour post-load plasma glucose (1h-PG) during an oral glucose tolerance test and smoking are associated with arterial stiffness. However, it remains unknown whether there are synergistic effects of these two factors on arterial stiffness. This study aimed to investigate the interaction between 1h-PG and smoking in relation to brachial-ankle pulse wave velocity (baPWV) in young men with normal glucose tolerance (NGT). METHODS: The study included 25-, 30-, 35-, 40-, and 45-year-old non-industrial male workers (n=2189) who underwent a detailed health check-up...
November 17, 2018: Journal of Atherosclerosis and Thrombosis
Mayumi Oyama-Higa, Fumitake Ou
This article is a comprehensive review of recent studies of the authors on the indication of mental health from biological information contained in pulse waves. A series of studies discovered that the largest Lyapunov exponent (LLE) of the attractor, which is constructed for the time series data from pulse waves, can provide as an effective indicator of mental health. A low level of LLE indicates insufficiency of external adaptability, which is characteristic of dementia and depression sufferers. On the contrary, a continuous high level of LLE indicates excessive external adaptability, and people in this condition tend to resort to violence...
2018: Journal of Healthcare Engineering
Sang Woo Kim, Min Cheol Chang
RATIONALE: Epidural hematoma is a possible complication after neuraxial procedures. Recently, caudal epidural pulsed radiofrequency (PRF) stimulation was reported as an effective method for controlling several types of chronic pain. Herein, we report on a patient who developed a lumbar epidural hematoma after receiving caudal epidural PRF stimulation. PATIENT CONCERNS: A 75-year-old woman, who was taking oral warfarin (2 mg/d), received caudal epidural PRF stimulation for symmetrical neuropathic pain in both legs due to chronic idiopathic axonal polyneuropathy...
November 2018: Medicine (Baltimore)
Leah B Peirce, Nicola M Orlov, Amarachi I Erondu, Samantha L Anderson, Michael Chamberlain, David Gozal, Vineet M Arora
STUDY OBJECTIVES: Sleep is critical to a child's health and well-being, but children are likely to sleep less and be awakened more often during the night in the hospital than at home. To date no studies have compared caregiver, nurse, and physician perspectives of nighttime sleep disruptions in the pediatric general medicine setting. Our aim was to assess caregiver, nurse, and physician perspectives on the most frequent in-hospital disruptors of sleep for pediatric patients. Additionally, we evaluated the degree of agreement of those opinions between the caregivers and medical team...
November 15, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
Vika Fatafehi Hala'ufia Lemoto, Kentaro Sugimoto, Tomoyuki Kanazawa, Takashi Matsuzaki, Hiroshi Morimatsu
We investigated the incidence of desaturation during general anesthesia in preoperatively hypoxic (< 92%), and nonhypoxic (≥ 92%) pediatric (n=1,090) and adult (n=5,138) patients. We plotted the patients' SpO2 value time-courses and assessed desaturation in 6,228 patients. The crude overall incidence (95%CI) for desaturation was 11.1% (9.4-13.1) in the pediatric patients and 0.9% (0.6-1.2) in the adults. The crude incidence of desaturation in the hypoxic pediatric patients was 2.5 times the risk in the nonhypoxic patients: risk ratio (RR) 2...
October 2018: Acta Medica Okayama
Manoj Kumar Choudhary, Arttu Eräranta, Antti J Tikkakoski, Jenni Koskela, Elina J Hautaniemi, Mika Kähönen, Jukka Mustonen, Ilkka Pörsti
BACKGROUND AND AIM: Low density lipoprotein cholesterol (LDL-C) is a primary risk factor for atherosclerosis, but it is also associated with elevated blood pressure (BP) and future development of hypertension. We examined the relationship between LDL-C and haemodynamic variables in normotensive and never-treated hypertensive subjects. METHODS: We recruited 615 volunteers (19-72 years) without lipid-lowering and BP-lowering medication. Supine haemodynamics were recorded using continuous radial pulse wave analysis, whole-body impedance cardiography, and single channel electrocardiogram...
October 29, 2018: Blood Pressure
William Evans, Quentin Willey, Erik D Hanson, Lee Stoner
BACKGROUND: Arterial stiffness (AS) is a key measure in predicting risk for cardiovascular disease (CVD) and related events, independent of other risk factors. Resistance training (RT) has been shown to increase AS in young healthy subjects. However, the effects of RT on AS in persons with or at risk for CVD remain unclear; this uncertainty is a barrier to RT prescription in this population. Considering RT may be as effective as or superior to aerobic exercise prescription in treating some co-morbidities associated with CVD, it would be helpful to clarify whether RT does lead to clinically meaningful increases (detrimental) in AS in those with CVD or CVD risk factors...
December 2018: Sports Medicine
Ludovic Langlois, Marlène Antor, Karim Atmani, Erwan Le Long, Pierre Merriaux, Valérie Bridoux, Pierre Dechelotte, Anne Marie Leroi, Mathieu Meleine, Guillaume Gourcerol
OBJECTIVES: Sacral nerve stimulation (SNS) is a surgical treatment of urinary and fecal incontinence. Despite its clinical efficacy, the mechanisms of action of SNS are still poorly known. This may be related to the use of acute stimulation models. Up to date, no rodent model of chronic SNS implants has been developed. Therefore, the aim of this study was to create a fully implantable and remotely controllable stimulating device to establish an animal model of chronic SNS. MATERIALS AND METHODS: The stimulating device consisted of an implantable pulse generator linked to a platinum electrode...
October 22, 2018: Neuromodulation: Journal of the International Neuromodulation Society
Wen-Lin Su, Hao-Ai Shui, Chou-Chin Lan, Mei-Chen Yang, Chien-An Hsieh, Shih-Jung Jang, Hsueh-Wen Chung, Yao-Kuang Wu
BACKGROUND: Troponin I is better than other troponin isoforms for monitoring cardiocyte damage, and correlates with sepsis-related mortality. However, hemodynamic factors possibly interact with cardiac function to affect mortality in sepsis. Thus, this study used parameters from pulse-induced contour cardiac output (PiCCO) to investigate the possibility. METHODS: Patients with troponin I tests and sequential organ failure assessment score ≥2 were selected and divided into survivors and nonsurvivors groups and blood troponin I levels between them were compared...
September 2018: American Journal of the Medical Sciences
Suat Zengin, Hasan Gümüşboğa, Mustafa Sabak, Şevki Hakan Eren, Gokhan Altunbas, Behçet Al
OBJECTIVE: For health professionals, the absence of pulse checked by manual palpation is a primary indicator for initiating chest compressions in patients considered to have cardiopulmonary arrest (CA). However, using a pulse check to evaluate perfusion during CA may be associated with some risks of its own. Our objective was to compare the efficiency of cardiac ultrasonography (CUSG), Doppler ultrasonography (DUSG), and manual pulse palpation methods to check the pulse in CA patients...
September 22, 2018: Resuscitation
James B Fitzgibbon, Emily Lovallo, Jeremiah Escajeda, Marek A Radomski, Christian Martin-Gill
INTRODUCTION: Point-of-care ultrasound (POCUS) has been suggested as a useful tool to predict survival and guide interventions in out-of-hospital cardiac arrest (OHCA). While POCUS has been deployed in prehospital settings, a minimal amount of data exists on prehospital use, particularly by personnel with limited ultrasound experience. We aimed to characterize the feasibility and barriers to prehospital POCUS during OHCA by emergency medicine services (EMS) physicians in training. METHODS: We deployed the SonoSite iViz portable ultrasound device for use by EMS physicians for OHCA in an urban EMS system...
October 17, 2018: Prehospital Emergency Care
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