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Heart rate monitoring

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https://www.readbyqxmd.com/read/29151053/protocol-of-the-sepsivit-study-a-prospective-observational-study-to-determine-whether-continuous-heart-rate-variability-measurement-during-the-first-48-hours-of-hospitalisation-provides-an-early-warning-for-deterioration-in-patients-presenting-with-infection
#1
Vincent M Quinten, Matijs van Meurs, Maurits H Renes, Jack J M Ligtenberg, Jan C Ter Maaten
INTRODUCTION: One in five patients with sepsis deteriorates within 48 hours after hospital admission. Regrettably, a clear tool for the early detection of deterioration is still lacking. The SepsiVit study aims to determine whether continuous heart rate variability (HRV) measurement can provide an early warning for deterioration in patients presenting with suspected infection or sepsis to the emergency department (ED). METHODS AND ANALYSIS: The protocol of a prospective observational study in the ED...
November 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/29145331/severe-hemodynamic-instability-after-indocyanine-green-injection-during-off-pump-coronary-artery-bypass-grafting-a-case-report
#2
Qing Zhai, Yun Wang, Ayong Tian
RATIONALE: The increasingly intraoperative use of indocyanine green (ICG) means that it is necessary to be aware of both its advantages and potential adverse effects. PATIENT CONCERNS: A 76-year-old woman developed symptoms of sudden severe hemodynamic instability while undergoing coronary artery bypass grafting with ICG injection to detect the patency of the graft. The main clinical manifestations were a sudden drop in blood pressure and increased heart rate. DIAGNOSES: Severe side effects or allergic reaction of ICG...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144513/predictors-of-heart-rhythm-disturbances-in-hypertensive-obese-patients-with-obstructive-sleep-apnea
#3
Lyudmila Sergeevna Korostovtseva, Nadezhda Edvinovna Zvartau, Oxana Petrovna Rotar, Yurii Vladimirovich Sviryaev, Aleksandra Olegovna Konradi
Objective: To assess the incidence and predictors of heart rhythm and conduction disturbances in hypertensive obese patients with and without obstructive sleep apnea (OSA). Methods: This is an open, cohort, prospective study. Out of 493 screened patients, we selected 279 hypertensive, obese individuals without severe concomitant diseases: 75 patients without sleep-disordered breathing (non-SDB group), and 204 patients with OSA (OSA group). At baseline, all patients underwent examination, including ECG, Holter ECG monitoring, and sleep study...
September 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29144400/design-and-clinical-evaluation-of-a-non-contact-heart-rate-variability-measuring-device
#4
Jure Kranjec, Samo Beguš, Gregor Geršak, Matjaž Šinkovec, Janko Drnovšek, Domen Hudoklin
The object of the proposed paper is to design and analyze the performance of a non-contact heart rate variability (HRV) measuring device based on ultrasound transducers. The rationale behind non-contact HRV measurement is the goal of obtaining a means of long term monitoring of a patient's heart performance. Due to its complexity as a non-contact measuring device, influential physical quantities, error source and other perturbations were thoroughly investigated. For medical purposes it is of utmost importance to define the target uncertainty of a measuring method from the side of physicians, while it is the role of scientists to realistically evaluate all uncertainty contributions...
November 16, 2017: Sensors
https://www.readbyqxmd.com/read/29144026/heart-rate-variability-and-implication-for-sport-concussion
#5
REVIEW
Scott A Bishop, Ryan T Dech, Przemyslaw Guzik, J Patrick Neary
Finding sensitive and specific markers for sports-related concussion is both challenging and clinically important. Such biomarkers might be helpful in the management of patients with concussion (i.e. diagnosis, monitoring and risk prediction). Among many parameters, blood flow-pressure metrics and heart rate variability (HRV) have been used to gauge concussion outcomes. Reports on the relation between HRV and both acute and prolonged concussion recovery are conflicting. While some authors report on differences in the low-frequency (LF) component of HRV during postural manipulations and postexercise conditions, others observe no significant differences in various HRV measures...
November 16, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29141373/-a-concentration-response-observation-of-hydromorphone-combined-with-ropivacaine-in-labor-analgesia
#6
Y Y Lu, H Huang, W L Mao, R H Liu, M J Hu, L X Shao, M P Hu, J Li
Objective: To investigate the median effective dose (ED(50)) of hydromorphone and the appropriate concentration of ropivacaine combined with hydromorphone in epidural labor analgesia. Methods: One hundred and forty nulliparous women undergoing labor selected for delivery with epidural analgesia were enrolled in our hospital from January to June 2016. The first of top 50 women received 0.12% ropivacaine plus 20 μg/ml hydromorphone complex solution, then sequential women were used the modified sequential method to determine the ED(50) and ED(95) of hydromorphone...
November 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29140908/heart-rate-monitoring-in-basketball-applications-player-responses-and-practical-recommendations
#7
Daniel M Berkelmans, Vincent J Dalbo, Crystal O Kean, Zoran Milanović, Emilija Stojanović, Nenad Stojiljković, Aaron T Scanlan
The aims of this review were to collate the existing literature encompassing heart rate (HR) monitoring in basketball to: (i) identify the applications of HR measurement; (ii) report HR responses in male and female players during training and game-play; (iii) evaluate use of current HR-based training load models; and (iv) provide recommendations for future research and best practice approaches for basketball practitioners. HR monitoring in basketball carries three primary applications: (i) monitoring exercise intensity; (ii) assessing player fatigue status; and (iii) quantifying internal training load...
November 13, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29140281/non-contact-sensor-for-long-term-continuous-vital-signs-monitoring-a-review-on-intelligent-phased-array-doppler-sensor-design
#8
REVIEW
Travis Hall, Donald Y C Lie, Tam Q Nguyen, Jill C Mayeda, Paul E Lie, Jerry Lopez, Ron E Banister
It has been the dream of many scientists and engineers to realize a non-contact remote sensing system that can perform continuous, accurate and long-term monitoring of human vital signs as we have seen in many Sci-Fi movies. Having an intelligible sensor system that can measure and record key vital signs (such as heart rates and respiration rates) remotely and continuously without touching the patients, for example, can be an invaluable tool for physicians who need to make rapid life-and-death decisions. Such a sensor system can also effectively help physicians and patients making better informed decisions when patients' long-term vital signs data is available...
November 15, 2017: Sensors
https://www.readbyqxmd.com/read/29139250/-clinical-safety-imtensive-hospital-monitoring-on-shenfu-injection-with-30-106-cases
#9
Zhi-Fei Wang, Jin-Yang Yu, Yan-Ming Xie
This paper is to report the implementation and results of safety monitoring of Shenfu injection. Prospective, multicenter, large sample, registry-type centralized hospital monitoring mode was used, and the three-level quality control and anti-omissive mechanisms were used strictly. In the monitoring was carried out in 28 hospitals and lasted for 4 years. 30 106 patients were registered; ADE occurred in 114 patients, and ADR was identified in 23 patients with an incidence rate of 0.076% for ADR [95% confidence interval (0...
August 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29135601/sex-differences-in-cardiac-baroreflex-sensitivity-following-isometric-handgrip-exercise
#10
André L Teixeira, Raphael Ritti-Dias, Diego Antonino, Martim Bottaro, Philip J Millar, Lauro C Vianna
PURPOSE: To investigate potential sex-related differences on spontaneous cardiac baroreflex sensitivity (cBRS) following acute isometric handgrip (IHG) exercise. METHODS: Twenty men (23±3 years) and 20 women (24±4 years) randomly performed four sets of 2-min IHG exercise (two sets for each limb) at 30% maximum voluntary contraction (MVC - experimental) or 3% MVC (sham). Beat-to-beat heart rate (HR) and arterial blood pressure (BP) were monitored using finger photoplethysmography before and 10-, 20-, and 30-min following IHG...
November 13, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29135491/agreement-analysis-of-oscillometric-devices-in-the-measure-of-resting-heart-rate-in-breast-cancer-survivors
#11
Mariana R Palma, Luiz C M Vanderlei, Fernanda E Ribeiro, Rafaela C C de Andrade, Cristina E P T Fregonesi, Ismael F Freitas Júnior, Diego G D Christofaro
OBJECTIVE: The aim of this study was to verify the reproducibility of an oscillometric device in the measurement of resting heart rate (RHR) in breast cancer survivors. METHODS: This study included 85 breast cancer survivors with a mean age of 58.87±10.03 years. For the RHR evaluation, the equipment used was the Omron HEM 742, electronic and digital arm device, for measurement of blood pressure and heart rate (HR), with automatic cuff inflation and deflation. At the same time as the oscillometric measurement, HR was measured by the HR monitor Polar RS800 CX, which has been validated previously for HR uptake...
November 10, 2017: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/29135467/univariate-and-multivariate-conditional-entropy-measures-for-the-characterization-of-short-term-cardiovascular-complexity-under-physiological-stress
#12
Martina Valente, Michal Javorka, Alberto Porta, Vlasta Bari, Jana Krohova, Barbora Czippelova, Zuzana Turianikova, Giandomenico Nollo, Luca Faes
A defining feature of physiological systems under the neuroautonomic regulation is their dynamical complexity. The most common approach to assess physiological complexity from short-term recordings, i.e. to compute the rate of entropy generation of an individual system by means of measures of conditional entropy (CE), does not consider that complexity may change when the investigated system is part of a network of physiological interactions. This study aims at extending the concept of short-term complexity towards the perspective of network physiology, defining multivariate CE measures whereby multiple physiological processes are accounted for in the computation of entropy rates...
November 14, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/29133275/normal-values-for-myocardial-deformation-within-the-right-heart-measured-by-feature-tracking-cardiovascular-magnetic-resonance-imaging
#13
Boyang Liu, Ahmed M Dardeer, William E Moody, Nicola C Edwards, Lucy E Hudsmith, Richard P Steeds
BACKGROUND: Reproducible and repeatable assessment of right heart function is vital for monitoring congenital and acquired heart disease. There is increasing evidence for the additional value of myocardial deformation (strain and strain rate) in determining prognosis. This study aims to determine the reproducibility of deformation analyses in the right heart using cardiovascular magnetic resonance feature tracking (FT-CMR); and to establish normal ranges within an adult population. METHODS: A cohort of 100 healthy subjects containing 10 males and 10 females from each decade of life between the ages of 20 and 70 without known congenital or acquired cardiovascular disease, hypertension, diabetes, dyslipidaemia or renal, hepatic, haematologic and systemic inflammatory disorders underwent FT-CMR assessment of right ventricular (RV) and right atrial (RA) myocardial strain and strain rate...
October 31, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29132252/association-between-fetal-myocardial-performance-index-and-fetal-heart-rate-monitoring-a-prospective-observational-cohort-study
#14
Alexis C Gimovsky, Brianne Whitney, Dennis Wood, Stuart Weiner
OBJECTIVE: To evaluate whether the left myocardial performance index (MPI) changes in association with the fetal heart rate (FHR) tracing during labor. STUDY DESIGN: Women with term, singleton pregnancies, in labor were recruited to this prospective cohort study. PRIMARY OUTCOME: difference in left MPI between Category of fetal heart rate tracings. SECONDARY OUTCOMES: differences in left MPI by FHR characteristics. Participants underwent ultrasound examination, during which fetal MPI was measured...
November 13, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29131282/prognostic-value-of-daytime-heart-rate-blood-pressure-their-products-and-quotients-in-chronic-heart-failure
#15
Anna Kowalczys, Michał Bohdan, Marcin Gruchała
BACKGROUND: Chronic heart failure (CHF) is an important epidemiological and therapeuthic issue with poor prognosis. The aim of the study was to estimate the prognostic value of daytime heart rate (HR), blood pressure (BP), their products and quotients in patients with CHF. METHODS: The study included 80 stable patients with CHF and reduced left ventricular ejection fraction (LVEF ≤ 35%). Physical examination, laboratory blood tests, electrocardiogram, chest X-ray, echocardiography, 6-minute walk test (6MWT), telemetry monitoring and BP measurements were performed in all participants...
November 13, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/29129560/the-role-of-holter-monitoring-in-the-diagnosis-of-early-repolarisation-pattern
#16
Cheng-Cheng Ji, Xu-Miao Chen, Yun-Jiu Cheng, Li-Juan Liu, Kai Tang, Wei-Qi Zhu, Ying Huang, Wei-Ying Chen, Wei-Ying Chen, Su-Hua Wu
BACKGROUND: A slower heart rate can exaggerate J-point elevation in a 12-lead ECG. This study examined the role of Holter monitoring in the diagnosis of early repolarisation pattern (ERP). METHODS: We examined 24-hour Holter recordings of 4000 consecutive patients seen at an outpatient clinic, and found 500 patients (12.5%) with ERP (based on J-point elevation magnitude maximum value≥0.1mV on the Holter recording). The highest magnitude of J-point elevation, R wave amplitude, the ratio between J-point elevation magnitude and R-wave amplitude on the same ECG lead (J/R ratio), QRS interval, and QT/QTc interval were measured on the Holter recording and on a surface 12-lead ECG of the 500 patients with ERP...
October 20, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29129555/nicotine-delivery-efficiency-of-first-and-second-generation-e-cigarettes-and-its-impact-on-relief-of-craving-during-the-acute-phase-of-use
#17
Tobias Rüther, Dieter Hagedorn, Konstantin Schiela, Thomas Schettgen, Helga Osiander-Fuchs, Wolfgang Schober
Knowledge about the change in blood nicotine concentrations during the first five minutes (acute phase) of e-cigarette vaping is important to determine whether the used product has a dependence potential or may be an efficient nicotine replacement product. To address this issue, we monitored blood nicotine levels during the acute phase in volunteers using disposable cigalikes (CLs) and a tank model (TM) and compared them with blood nicotine levels in subjects using a tobacco cigarette (TC). In parallel, heart rate changes were continually measured and withdrawal symptoms and craving were assessed with the Questionnaire on Smoking Urges before and immediately after the vaping/smoking sessions...
October 28, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/29129350/evaluation-of-ecg-algorithms-designed-to-improve-detect-of-transient-myocardial-ischemia-to-minimize-false-alarms-in-patients-with-suspected-acute-coronary-syndrome
#18
Michele M Pelter, Yuan Xu, Richard Fidler, Ran Xiao, David W Mortara, Hu Xiao
BACKGROUND: Patients hospitalized for suspected acute coronary syndrome (ACS) are at risk for transient myocardial ischemia. During the "rule-out" phase, continuous ECG ST-segment monitoring can identify transient myocardial ischemia, even when asymptomatic. However, current ST-segment monitoring software is vastly underutilized due to false positive alarms, with resultant alarm fatigue. Current ST algorithms may contribute to alarm fatigue because; (1) they are not designed with a delay (minutes), rather alarm to brief spikes (i...
October 24, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29129149/anaesthetic-and-cardiorespiratory-effects-of-ketamine-plus-dexmedetomidine-for-chemical-restraint-in-black-capuchin-monkeys-sapajus-nigritus
#19
J A B Chagas, L C P Santos, J R Silva Filho, C Bondan
AIMS: To evaluate the quality of anaesthesia and cardiorespiratory effects of ketamine and two doses of dexmedetomidine in captive black capuchin monkeys (Sapajus nigritus) undergoing routine clinical examination. METHODS: Twenty-four animals undergoing routine clinical examination were enrolled in the study. Animals were briefly physically restrained and examined to ensure no obvious illness was present and that they were healthy. Monkeys were randomly allocated to two groups (n=12 per group) and then treated with a combination of I/M 7...
November 12, 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/29129022/heat-acclimation-decay-and-re-induction-a-systematic-review-and-meta-analysis
#20
REVIEW
Hein A M Daanen, Sebastien Racinais, Julien D Périard
BACKGROUND: Although the acquisition of heat acclimation (HA) is well-documented, less is known about HA decay (HAD) and heat re-acclimation (HRA). The available literature suggests 1 day of HA is lost following 2 days of HAD. Understanding this relationship has the potential to impact upon the manner in which athletes prepare for major competitions, as a HA regimen may be disruptive during final preparations (i.e., taper). OBJECTIVE: The aim of this systematic review and meta-analysis was to determine the rate of HAD and HRA in three of the main physiological adaptations occurring during HA: heart rate (HR), core temperature (T c), and sweat rate (SR)...
November 11, 2017: Sports Medicine
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