keyword
MENU ▼
Read by QxMD icon Read
search

Plethysmograph

keyword
https://www.readbyqxmd.com/read/29614329/presetting-ecg-electrodes-for-earlier-heart-rate-detection-in-the-delivery-room
#1
Rashmi Gulatia, Michael Zayeka, Fabien Eyala
AIM: To determine whether heart rate (HR) could be detected earlier than by pulse oximeter (POX), using a novel method of application of electrocardiogram (ECG) electrodes during neonatal resuscitation in the delivery room. METHODS: ECG electrodes were set before delivery to be applied to the back of infants' thorax. Time to detect HR was recorded as soon as a numerical HR along with a recognizable and persistent QRS complex was observed on ECG monitor (HRECG) and a plethysmographic waveform was seen on POX monitor (HRPOX)...
March 31, 2018: Resuscitation
https://www.readbyqxmd.com/read/29611767/impulse-oscillometry-and-nitrogen-washout-test-in-the-assessment-of-small-airway-dysfunction-in-asthma-correlation-with-quantitative-computed-tomography
#2
Leonello Fuso, Giuseppe Macis, Carola Condoluci, Martina Sbarra, Chiara Contu, Emanuele G Conte, Giulia Angeletti, Paolo Montuschi
OBJECTIVE: Small airway dysfunction (SAD) and airway remodeling influence the disease control and progression in asthma. We investigated whether impulse oscillometry (IOS) and single breath nitrogen washout (SBN2 W) could be reliable tests in evaluating SAD and airway remodeling by correlating their data with radiological parameters derived from quantitative chest multidetector computed tomography (MDCT) imaging. METHODS: Lung function tests were performed before and after bronchodilator...
April 3, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29607211/development-of-a-multisensory-wearable-system-for-monitoring-cigarette-smoking-behavior-in-free-living-conditions
#3
Masudul Haider Imtiaz, Raul I Ramos-Garcia, Volkan Yusuf Senyurek, Stephen Tiffany, Edward Sazonov
This paper presents the development and validation of a novel multi-sensory wearable system (Personal Automatic Cigarette Tracker v2 or PACT2.0) for monitoring of cigarette smoking in free-living conditions. The contributions of the PACT2.0 system are: (1) the implementation of a complete sensor suite for monitoring of all major behavioral manifestations of cigarette smoking (lighting events, hand-to-mouth gestures, and smoke inhalations); (2) a miniaturization of the sensor hardware to enable its applicability in naturalistic settings; and (3) an introduction of new sensor modalities that may provide additional insight into smoking behavior e...
December 2017: Electronics (Basel)
https://www.readbyqxmd.com/read/29605198/gas-exchange-and-breathing-pattern-in-women-with-postmenopausal-bone-fragility
#4
F Polverino, J P de Torres, C Santoriello, A Capuozzo, I Mauro, Joselyn Rojas-Quintero, B D'Agostino, M Pistolesi, B Celli, M Polverino, C A Owen
BACKGROUND: Little is known about the relationship between bone fragility and respiratory function. We hypothesized that women with osteoporosis or osteopenia, without cardio-pulmonary disease, have perturbations in the pattern of breathing and gas exchange. METHODS: In 44 women with bone fragility (BF, T score: < -1), and 20 anthropomorphically-matched control women (T score > -1) we compared pulmonary function tests, central respiratory drive (mouth occlusion pressure or P 0...
April 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29587296/the-relationships-of-the-fractional-excretion-of-uric-acid-with-brachial-ankle-pulse-wave-velocity-and-ankle-brachial-index-in-chinese-young-adults
#5
Jia-Wen Hu, Yang Wang, Chao Chu, Yu Yan, Keke Wang, Wenling Zheng, Qiong Ma, Yong-Bo Lv, Yin Deng, Bo Yan, Jian-Jun Mu
BACKGROUND/AIMS: Elevated serum uric acid (UA) was intimately correlated with vascular stiffness and abnormal ankle brachial index (ABI) in various populations. These correlations lost significance after adjustment for estimated glomerular filtration rate (eGFR), indicating that the association of UA and brachial-ankle pulse wave velocity (baPWV) or ABI might be driven by kidney function. UA is predominantly eliminated through the kidneys, and metabolic disorders can influence the clearance of UA...
2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29568266/normalization-of-blood-pressure-with-spinal-cord-epidural-stimulation-after-severe-spinal-cord-injury
#6
Susan J Harkema, Siqi Wang, Claudia A Angeli, Yangsheng Chen, Maxwell Boakye, Beatrice Ugiliweneza, Glenn A Hirsch
Chronic low blood pressure and orthostatic hypotension remain challenging clinical issues after severe spinal cord injury (SCI), affecting health, rehabilitation, and quality of life. We previously reported that targeted lumbosacral spinal cord epidural stimulation (scES) could promote stand and step functions and restore voluntary movement in patients with chronic motor complete SCI. This study addresses the effects of targeted scES for cardiovascular function (CV-scES) in individuals with severe SCI who suffer from chronic hypotension...
2018: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29506963/variability-of-forearm-collateral-circulation-an-observational-study-of-serial-hand-plethysmography-testing
#7
Sandhya Reddy, Pariseema S Pancholy, Kaveet P Pandya, Anvit Rai, Aman T Patel, Siddharth Chauhan, Ian C Gilchrist
OBJECTIVES: Evaluation of plethysmography as a reliable triage tool to access collateral circulation in the hand prior to transradial access. BACKGROUND: Hand plethysmographic testing has been used for access site triage prior to cardiac catheterization despite a lack of data supporting its result's stability. METHODS: Cohort of consecutive outpatients presenting for evaluation prior to cardiac catheterization underwent hand plethysmographic testing at the beginning of the office visit and before discharge...
March 2, 2018: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29501247/the-impact-of-aging-on-outpatients-with-asthma-in-a-real-world-setting
#8
Giorgio Ciprandi, Irene Schiavetti, Fabio L M Ricciardolo
BACKGROUND: Asthma is characterized by airway inflammation and bronchial hyperreactivity. It is conceived that aging may affect asthma characteristics, but this issue is still not completely clarified in clinical practice. OBJECTIVE: The present study investigated whether aging may affect some clinical and functional factors in outpatients with asthma visited in a real-world setting, such as clinical practice. METHODS: Globally, 391 outpatients (163 males, median age 47 years) with asthma were consecutively evaluated...
March 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29464303/brief-ethanol-exposure-and-stress-related-factors-disorganize-neonatal-breathing-plasticity-during-the-brain-growth-spurt-period-in-the-rat
#9
A F Macchione, F Anunziata, B O Haymal, P Abate, J C Molina
RATIONALE: The effects of early ethanol exposure upon neonatal respiratory plasticity have received progressive attention given a multifactorial perspective related with sudden infant death syndrome or hypoxia-associated syndromes. The present preclinical study was performed in 3-9-day-old pups, a stage in development characterized by a brain growth spurt that partially overlaps with the 3rd human gestational trimester. METHODS: Breathing frequencies and apneas were examined in pups receiving vehicle or a relatively moderate ethanol dose (2...
February 21, 2018: Psychopharmacology
https://www.readbyqxmd.com/read/29404181/association-between-the-serum-metabolic-profile-and-lung-function-in-chronic-obstructive-pulmonary-disease
#10
Shima Rafie, Subhabrata Moitra, Bill B Brashier
OBJECTIVES: Although dietary patterns are known to modulate disease severity in patients with chronic obstructive pulmonary disease (COPD), the relationship between the circulating lipid profile and lung function in COPD has not been studied extensively. MATERIAL AND METHODS: There were 43 COPD patients with a history of smoking and 39 patients with a history of biomass fuel exposure recruited in this study, along with 43 age-matched healthy controls. All participants underwent complete lung function profiling, and their glucose and lipid profiles were measured...
January 2018: Turkish Thoracic Journal
https://www.readbyqxmd.com/read/29351164/body-mass-index-versus-body-fat-percentage-in-prospective-national-football-league-athletes-overestimation-of-obesity-rate-in-athletes-at-the-national-football-league-scouting-combine
#11
Matthew T Provencher, Jorge Chahla, George Sanchez, Mark E Cinque, Nicholas I Kennedy, Jim Whalen, Mark D Price, Gilbert Moatshe, Robert F LaPrade
Provencher, MT, Chahla, J, Sanchez, G, Cinque, ME, Kennedy, NI, Whalen, J, Price, MD, Moatshe, G, and LaPrade, RF. Body mass index versus body fat percentage in prospective national football league athletes: overestimation of obesity rate in athletes at the national football league scouting combine. J Strength Cond Res 32(4): 1013-1019, 2018-Obesity has been previously noted as a major issue in the National Football League (NFL), where it has been shown that 97% of all players demonstrate a body mass index (BMI) of ≥25...
April 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29320566/the-effect-of-time-of-day-and-chest-physiotherapy-on-multiple-breath-washout-measures-in-children-with-clinically-stable-cystic-fibrosis
#12
Christian Voldby, Kent Green, Susanne Rosthøj, Thomas Kongstad, Lue Philipsen, Frederik Buchvald, Marianne Skov, Tania Pressler, Per Gustafsson, Kim G Nielsen
BACKGROUND: In this pilot study we investigated daytime variation of multiple breath nitrogen washout (N2MBW) measures in children with clinically stable cystic fibrosis. To our knowledge the effect of time-of-day on multiple breath washout measures in patients with cystic fibrosis has not previously been reported. Furthermore, we assessed the influence of chest physiotherapy on N2MBW measures. METHODS: Ten school children with cystic fibrosis performed N2MBW followed by spirometry and plethysmography in the morning and afternoon at three visits that were one month apart...
2018: PloS One
https://www.readbyqxmd.com/read/29251031/correlation-between-time-lag-of-arterial-plethysmographic-waveforms-and-systemic-vascular-resistance-a-prospective-study
#13
Radhakrishnan Muthuchellappan, Ramesh V J, Umamaheswara Rao Ganne S, Thennarasu K, Anjana Jacob, Sripathy G, Bhadrinarayan V, Mohanvelu K
Blood pressure (BP), a surrogate of cardiac output (CO), is also dependent on systemic vascular resistance (SVR). But SVR is not routinely monitored in daily clinical practice. We hypothesise that the time difference between the peripheral arterial waveform and the finger plethysmographic waveform (time lag index - TLi) could indicate the systemic vascular resistance. In this study, we correlated TLi with the systemic vascular resistance measured by minimally invasive CO monitor (pulse contour analysis). SVR changes in response to administration of mannitol were studied...
January 2018: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/29249773/does-pneumoperitoneum-affect-perfusion-index-and-pleth-variability-index-in-patients-receiving-combined-epidural-and-general-anesthesia
#14
Zen'ichiro Wajima, Toshiya Shiga, Kazuyuki Imanaga
Plethysmographic variability index (PVI) is a dynamic index used for the purpose of fluid responsiveness in patients, and the effect of pneumoperitoneum on PVI is still unclear. We therefore attempted to determine whether PVI and perfusion index (PI) change before/after pneumoperitoneum in patients receiving combined epidural and general anesthesia, which is a common anesthesia method with intravenous remifentanil. Twenty patients underwent laparoscopic cholecystectomy or colectomy. Immediately before pneumoperitoneum, variables were measured at baseline I and were then measured every min for 5 min after pneumoperitoneum start...
January 9, 2018: Bioscience Trends
https://www.readbyqxmd.com/read/29203173/evaluation-of-the-dynamic-predictors-of-fluid-responsiveness-in-dogs-receiving-goal-directed-fluid-therapy
#15
Maja J Drozdzynska, Yu-Mei Chang, Giacomo Stanzani, Ludovic Pelligand
OBJECTIVES: Goal-directed fluid therapy (GDFT) based on pulse pressure variation (PPV) was used in anaesthetized dogs undergoing abdominal surgeries. The aims were 1) to evaluate the success rate of the PPV ≥13% in detecting fluid responsiveness [delta stroke volume (ΔSV) ≥10%]; 2) to assess the correlation between PPV, systolic pressure variation (SPV), Plethysmograph Variability Index (PVI) and central venous pressure (CVP) and 3) to establish the threshold value for the PVI that would predict a PPV value of ≥13% and indirectly discriminate responders from nonresponders to fluid therapy...
January 2018: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29189318/standardised-noxious-stimulation-guided-individual-adjustment-of-remifentanil-target-controlled-infusion-to-prevent-haemodynamic-responses-to-laryngoscopy-and-surgical-incision-a-randomised-controlled-trial
#16
Aline Defresne, Luc Barvais, François Clement, Vincent Bonhomme
BACKGROUND: The surgical plethysmographic index (SPI) is one of the available indexes of the nociception-antinociception (NAN) balance. Individually adjusting the NAN balance to prevent somatic responses to noxious stimulation remains a challenge. OBJECTIVES: To assess whether guiding remifentanil administration according to the SPI response to a calibrated noxious stimulus (NANCAL) can blunt the haemodynamic response to tracheal intubation and surgical incision...
March 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29183008/correlates-of-pulmonary-function-in-children-with-sickle-cell-disease-and-elevated-fetal-hemoglobin
#17
Adekunle D Adekile, Asmaa Azab, Abdullah Owayed, Mousa Khadadah
OBJECTIVE: The current study was carried out to compare pulmonary function tests (PFT) in pediatric Kuwaiti sickle cell disease (SCD) patients to age-matched normal controls and to investigate the association of PFTS to selected clinical and laboratory parameters. SUBJECTS AND METHODS: There were 38 patients with SCD and 36 controls in the study. The patients were recruited from the Pediatric Hematology Clinics of Mubarak Al-Kabeer and Al-Amiri Hospitals, Kuwait and were studied in steady state...
November 28, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/29163200/a-pulse-wave-velocity-based-method-to-assess-the-mean-arterial-blood-pressure-limits-of-autoregulation-in-peripheral-arteries
#18
Ananya Tripathi, Yurie Obata, Pavel Ruzankin, Narwan Askaryar, Dan E Berkowitz, Jochen Steppan, Viachaslau Barodka
Background: Constant blood flow despite changes in blood pressure, a phenomenon called autoregulation, has been demonstrated for various organ systems. We hypothesized that by changing hydrostatic pressures in peripheral arteries, we can establish these limits of autoregulation in peripheral arteries based on local pulse wave velocity (PWV). Methods: Electrocardiogram and plethysmograph waveforms were recorded at the left and right index fingers in 18 healthy volunteers. Each subject changed their left arm position, keeping the right arm stationary...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29122914/pulmonary-function-deficits-in-newborn-screened-infants-with-cystic-fibrosis-managed-with-standard-uk-care-are-mild-and-transient
#19
Gwyneth Davies, Janet Stocks, Lena P Thia, Ah-Fong Hoo, Andrew Bush, Paul Aurora, Lucy Brennan, Simon Lee, Sooky Lum, Philippa Cottam, Joanne Miles, Jane Chudleigh, Jane Kirkby, Ian M Balfour-Lynn, Siobhán B Carr, Colin Wallis, Hilary Wyatt, Angie Wade
With the advent of novel designer molecules for cystic fibrosis (CF) treatment, there is huge need for early-life clinical trial outcomes, such as infant lung function (ILF). We investigated the degree and tracking of ILF abnormality during the first 2 years of life in CF newborn screened infants.Forced expiratory volume in 0.5 s (FEV0.5), lung clearance index (LCI) and plethysmographic functional residual capacity were measured at ∼3 months, 1 year and 2 years in 62 infants with CF and 34 controls...
November 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29119007/endothelial-dysfunction-is-associated-with-activation-of-the-type-i-interferon-system-and-platelets-in-patients-with-systemic-lupus-erythematosus
#20
Helena Tydén, Christian Lood, Birgitta Gullstrand, Christoffer Tandrup Nielsen, Niels H H Heegaard, Robin Kahn, Andreas Jönsen, Anders A Bengtsson
Objectives: Endothelial dysfunction may be connected to cardiovascular disease (CVD) in systemic lupus erythematosus (SLE). Type I interferons (IFNs) are central in SLE pathogenesis and are suggested to induce both endothelial dysfunction and platelet activation. In this study, we investigated the interplay between endothelial dysfunction, platelets and type I IFN in SLE. Methods: We enrolled 148 patients with SLE and 79 sex-matched and age-matched healthy controls (HCs)...
2017: RMD Open
keyword
keyword
108395
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"