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https://www.readbyqxmd.com/read/29449080/influence-of-exercise-modality-on-cardiac-parasympathetic-and-sympathetic-indices-during-post-exercise-recovery
#1
Scott Michael, Ollie Jay, Kenneth S Graham, Glen M Davis
OBJECTIVES: This study investigated indirect measures of post-exercise parasympathetic reactivation (using heart-rate-variability, HRV) and sympathetic withdrawal (using systolic-time-intervals, STI) following upper- and lower-body exercise. DESIGN: Randomized, counter-balanced, crossover. METHODS: 13 males (age 26.4±4.7years) performed maximal arm-cranking (MAX-ARM) and leg-cycling (MAX-LEG). Subsequently, participants undertook separate 8-min bouts of submaximal HR-matched exercise of each mode (ARM and LEG)...
February 12, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29217244/intraoperative-transesophageal-and-postoperative-transthoracic-echocardiographic-evaluation-of-a-mechanical-heart-valve-prosthesis-implanted-at-aortic-position
#2
Saravana Babu, Rupa Sreedhar, Shrinivas V Gadhinglajkar, Prasanta Kumar Dash, Subin Sukesan, Vivek Pillai, Varghese T Panicker, Lovhale Pravin Shriram, Neelam Aggarwal
OBJECTIVE: The aims of this study were to evaluate the intraoperative transesophageal echocardiographic (iTEE) characteristics and Doppler flow profile of aortic Chitra heart valve prosthesis (CHVP) under stable hemodynamic and loading conditions, and to compare and correlate the iTEE data with the postoperative transthoracic echocardiography (TTE) data obtained at 48 hours (TTE1) and 3 months (TTE2) after the surgery. DESIGN: Prospective, observational study. SETTING: University-level tertiary referral hospital...
September 6, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29045166/driver-injury-in-near-and-far-side-impacts-update-on-the-effect-of-front-passenger-belt-use
#3
Chantal S Parenteau, David C Viano
PURPOSE: This is a study that updates earlier research on the influence of a front passenger on the risk for severe driver injury in near-side and far-side impacts. It includes the effects of belt use by the driver and passenger, identifies body regions involved in driver injury and identifies the sources for severe, driver head injury. METHODS: 1997-2015 NASS-CDS data was used to investigate the risk for MAIS 4+F driver injury in near-side and far-side impacts by front-passenger belt use and as a sole occupant in the driver seat...
October 18, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28720195/early-ejection-seats-in-germany
#4
Viktor Harsch
No abstract text is available yet for this article.
August 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28702808/longer-exercise-duration-delays-post-exercise-recovery-of-cardiac-parasympathetic-but-not-sympathetic-indices
#5
Scott Michael, Ollie Jay, Kenneth S Graham, Glen M Davis
PURPOSE: This study investigated non-invasive indices of post-exercise parasympathetic reactivation (using heart rate variability, HRV) and sympathetic withdrawal (using systolic time intervals, STI) following different exercise durations. METHODS: 13 healthy males (age 26.4 ± 4.7 years) cycled at 70% heart rate (HR) reserve for two durations-8 min (SHORT) and 32 min (LONG)-on separate occasions: HRV (including natural logarithm of root mean square of successive differences, Ln-RMSSD) and STI (including pre-ejection period, PEP) were assessed throughout 10 min seated recovery...
July 12, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28657420/driver-and-front-passenger-injury-in-frontal-crashes-update-on-the-effect-of-unbelted-rear-occupants
#6
Chantal S Parenteau, David C Viano
PURPOSE: This is a study of the influence of an unbelted rear occupant on the risk of severe injury to the front seat occupant ahead of them in frontal crashes. It provides an update to earlier studies. METHODS: 1997-2015 NASS-CDS data were used to investigate the risk for severe injury (Maximum Abbreviated Injury Score [MAIS] 4+F) to belted drivers and front passengers in frontal crashes by the presence of a belted or unbelted passenger seated directly behind them or without a rear passenger...
January 2, 2018: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28561596/higher-exercise-intensity-delays-postexercise-recovery-of-impedance-derived-cardiac-sympathetic-activity
#7
Scott Michael, Ollie Jay, Kenneth S Graham, Glen M Davis
Systolic time intervals (STIs) provide noninvasive insights into cardiac sympathetic neural activity (cSNA). As the effect of exercise intensity on postexercise STI recovery is unclear, this study investigated the STI recovery profile after different exercise intensities. Eleven healthy males cycled for 8 min at 3 separate intensities: LOW (40%-45%), MOD (75%-80%), and HIGH (90%-95%) of heart-rate (HR) reserve. Bio-impedance cardiography was used to assess STIs - primarily pre-ejection period (PEP; inversely correlated with cSNA), as well as left ventricular ejection time (LVET) and PEP:LVET - during 10 min seated recovery immediately postexercise...
May 31, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28363949/incidental-finding-of-anomalous-circumflex-coronary-artery-from-right-coronary-sinus-prior-to-aortic-valve-surgery
#8
Amer Harky, Alexander Hof, Mohammad U Ahmad, Rakesh Uppal
Anomalous origin of the left circumflex (Cx) artery is a common and mostly benign coronary artery anomaly. We report the case of a man aged 52 years who presented to his local hospital with progressive breathlessness on exertion and syncopal episodes. His admission transthoracic echocardiography (TTE) showed bicuspid aortic valve, severe aortic stenosis with a valve area of 0.5 cm(2) and his left ventricular ejection fraction (LVEF) was 27%. His coronary angiogram showed normal coronary arteries but anomalous origin of the Cx artery from the right coronary...
March 31, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28363171/severe-soft-tissue-injuries-of-the-upper-extremity-in-motor-vehicle-crashes-involving-partial-ejection-the-protective-role-of-side-curtain-airbags
#9
Robert Kaufman, Laura Fraade-Blanar, Angelo Lipira, Jeffrey Friedrich, Eileen Bulger
INTRODUCTION: Partial ejection (PE) of the upper extremity (UE) can occur in a motor vehicle crash (MVC) resulting in complex and severe soft tissue injuries (SSTI). This study evaluated the relationship between partial ejection and UE injuries, notably SSTIs, in MVCs focusing on crash types and characteristics, and further examined the role of side curtain airbags (SCABs) in the prevention of partial ejection and reducing SSTI of the UE. METHODS: Weighted data was analyzed from the National Automotive Sampling System Crashworthiness Data System (NASS-CDS) from 1993 to 2012...
May 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28070214/youth-traffic-related-injuries-a-prospective-study
#10
Michal Grivna, Hani O Eid, Fikri M Abu-Zidan
BACKGROUND: Traffic-related injuries are the most common cause of morbidity and mortality of the youth. Our aim was to study epidemiology, risk factors and outcome of hospitalized youth patients injured in road traffic collisions in order to give recommendations for prevention. METHODS: We prospectively studied all youth (15-24 years) patients having traffic-related injuries who were admitted to Al Ain or Tawam Hospitals, Al Ain City, or who died after arrival to these hospitals during an 18 months period...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/27902676/dural-sinus-cerebral-venous-thrombosis-in-a-pediatric-trauma-patient-a-rare-complication-after-closed-head-injury
#11
Jonathan Wilcher, Michelle Pannell
OBJECTIVE: Closed head injury rarely predisposes patients, particularly children, to the development of dural sinus thrombosis. In addition, most cases of sinus thrombosis are subacute in nature. The following is a case report of a precipitous course of dural sinus thrombosis after closed head injury in a pediatric trauma patient. DESCRIPTION: A 14-year-old African American girl presented to the emergency department as a trauma activation. She was an unrestrained rear-seat passenger involved in a motor vehicle collision during which she was ejected...
December 2016: Pediatric Emergency Care
https://www.readbyqxmd.com/read/27824420/-the-physical-examination-a-vanishing-art
#12
Ernst Tönnesmann, Diane Goltz, Thorsten Lewalter, Armin Welz
This report describes the case of a 63-year-old female patient who presented with progressive dyspnea to a specialized internal medicine practice. Prior consultations with her primary care physician and a cardiologist followed by hospitalizations in an acute care hospital and in a specialist clinic for cardiology had not yielded a conclusive diagnosis. During the physical examination, significant bilateral lower extremity edema, as well as pronounced jugular venous distention was noted while in a seated position...
October 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27747737/factors-associated-with-mortality-in-rear-seated-adult-passengers-involved-in-fatal-motor-vehicle-crashes-on-us-roadways
#13
Eli Raneses, Joyce C Pressley
BACKGROUND: Recent efforts to pass rear seat belt laws for adults have been hampered by large gaps in the scientific literature. This study examines driver, vehicle, crash, and passenger characteristics associated with mortality in rear-seated adult passengers. METHODS: The Fatality Analysis Reporting System (FARS) 2010 to 2011 was used to examine motor vehicle occupant mortality in rear-seated adult passengers 18 years and older. Side crash vehicle safety ratings were assessed in a subset analysis of vehicles struck on the same side as the rear-seated passenger...
December 2015: Injury Epidemiology
https://www.readbyqxmd.com/read/27488483/rear-seat-seatbelt-laws-and-restraint-use-in-rear-seated-teen-passengers-traveling-in-passenger-vehicles-involved-in-a-fatal-collision-on-a-us-roadway
#14
Joyce C Pressley, Hajere J Gatollari, Chang Liu
BACKGROUND: There is widespread belief that after childhood rear-seated motor vehicle occupants do not need to wear-seat seatbelts to travel safely. This belief is reflected in the fact that, in many states, teen passengers can ride legally unbelted in the rear seat of a passenger vehicle. METHODS: The Fatality Analysis Reporting System for 2010-2011 was used to examine factors associated with teen use of rear-seat seatbelts (n = 3,655) and with injury outcomes of belted and unbelted rear-seated teen passengers traveling in a passenger vehicle on a US roadway...
October 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27065879/differences-in-left-ventricular-global-function-and-mechanics-in-paralympic-athletes-with-cervical-and-thoracic-spinal-cord-injuries
#15
Katharine D Currie, Christopher R West, Andrei V Krassioukov
Following a spinal cord injury, there are changes in resting stroke volume (SV) and its response to exercise. The purpose of the following study was to characterize resting left ventricular structure, function, and mechanics in Paralympic athletes with tetraplegia (TETRA) and paraplegia (PARA) in an attempt to understand whether the alterations in SV are attributable to inherent dysfunction in the left ventricle. This retrospective study compared Paralympic athletes with a traumatic, chronic (>1 year post-injury), motor-complete spinal cord injury (American Spinal Injury Association Impairment Scale A-B)...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/26773695/effectiveness-of-the-revision-to-fmvss-301-fars-and-nass-cds-analysis-of-fatalities-and-severe-injuries-in-rear-impacts
#16
COMPARATIVE STUDY
David C Viano, Chantal S Parenteau
PURPOSE: This study investigated the change in the fatality and severe injury risks in rear impacts with vehicle model years (MY) grouped prior to, during the phase-in and after the revision to FMVSS 301. METHODS: FARS and NASS-CDS data were used to determine the injury risks of non-ejected occupants in light vehicles involving non-rollover, rear impacts. The data were analyzed by MY groups: 1996-2001, 2002-2007 and 2008+ to represent the years prior to, during the phase-in and post-revision phase-in of FMVSS 301...
April 2016: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/26562003/the-effect-of-head-massage-on-the-regulation-of-the-cardiac-autonomic-nervous-system-a-pilot-randomized-crossover-trial
#17
RANDOMIZED CONTROLLED TRIAL
Mir Sohail Fazeli, Mir-Masoud Pourrahmat, Mailan Liu, Ling Guan, Jean-Paul Collet
OBJECTIVES: To evaluate the effect of a single 10-minute session of Chinese head massage on the activity of the cardiac autonomic nervous system via measurement of heart rate variability (HRV). DESIGN: In this pilot randomized crossover trial, each participant received both head massage and the control intervention in a randomized fashion. SETTINGS/LOCATION: The study was conducted at Children's & Women's Health Centre of British Columbia between June and November 2014...
January 2016: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/26513698/blood-pressure-changes-in-patients-with-chronic-heart-failure-undergoing-slow-breathing-training
#18
RANDOMIZED CONTROLLED TRIAL
Tomasz Drozdz, Grzegorz Bilo, Dorota Debicka-Dabrowska, Marek Klocek, Gabriella Malfatto, Grzegorz Kielbasa, Katarzyna Styczkiewicz, Agnieszka Bednarek, Danuta Czarnecka, Gianfranco Parati, Kalina Kawecka-Jaszcz
BACKGROUND: Slow breathing training (SBT) has been proposed as a new non-pharmacological treatment able to induce favorable effects in patients with chronic heart failure (CHF). However, no information is available regarding its effects on orthostatic blood pressure (BP) changes in these patients, an issue of practical relevance given the reported BP-lowering effect of SBT. The aim of this study is to evaluate the influence of SBT on BP and whether SBT induces orthostatic hypotension (OH) or changes in quality of life (QoL) in CHF patients...
2016: Blood Pressure
https://www.readbyqxmd.com/read/26493954/ventilation-heterogeneity-is-increased-in-patients-with-chronic-heart-failure
#19
Kirk Kee, Christopher Stuart-Andrews, Kris Nilsen, Jeremy P Wrobel, Bruce R Thompson, Matthew T Naughton
In the healthy lung, ventilation is distributed heterogeneously due to factors such as anatomical asymmetry and gravity. This ventilation heterogeneity increases pathologically in conditions such as asthma, chronic obstructive lung disease, and cystic fibrosis. In chronic heart failure, lung biopsy demonstrates evidence of peripheral lung fibrosis and small airways narrowing and distortion. We hypothesized that this would lead to increased ventilation heterogeneity. Furthermore, we proposed that rostral fluid shifts when seated patients lie supine would further increase ventilation heterogeneity...
October 2015: Physiological Reports
https://www.readbyqxmd.com/read/26388083/factors-associated-with-delayed-ejection-in-mishaps-between-1993-and-2013
#20
John E Miles
INTRODUCTION: The purpose of this investigation was to identify factors associated with Air Force aviators delaying ejection during in-flight emergencies. METHODS: The investigator reviewed all reports within the Air Force Safety Automated System describing mishaps that resulted in the destruction of Air Force ejection-seat equipped aircraft between 1993 and 2013. Crewmembers were classified as either timely or delayed ejectors based on altitude at onset of emergency, altitude at ejection, and a determination regarding whether or not the aircraft was controlled during the mishap sequence...
September 2015: Aerospace Medicine and Human Performance
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