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findings from 12-lead electrocardiography

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https://www.readbyqxmd.com/read/28507628/does-vitamin-d-deficiency-effect-heart-rate-variability-in-low-cardiovascular-risk-population
#1
Ahmet Nalbant, Mehmet Bulent Vatan, Perihan Varım, Ceyhun Varım, Tezcan Kaya, Ali Tamer
AIM: This study aimed to evaluate the cardiac autonomic dysfunction and the cardiac arrhythmia risk using heart rate variability parameters in subjects with vitamin D deficiency and low cardiovascular risk. MATERIAL AND METHODS: One hundred five consecutive individuals, 54 patients with low vitamin D status and 51 healthy controls were enrolled in this study. The overall cardiac autonomic tone was quantified by using various heart rate variability parameters included mean RR interval, mean Heart Rate, mean of standard deviations of intervals for 24 hours (SDNN), standard deviation of averages of intervals (SDANN), mean of standard deviation of intervals for 5 minutes (SDNNI), root mean square of difference of successive intervals (rMSSD) and the proportion of intervals differing more than 50 ms (pNN50) values...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28449908/association-of-sleep-disordered-breathing-and-disturbed-cardiac-repolarization-in-patients-with-st-segment-elevation-myocardial-infarction
#2
Christoph Fisser, Alina Marcinek, Andrea Hetzenecker, Kurt Debl, Andreas Luchner, Ulrich Sterz, Jörg Priefert, Florian Zeman, Malcolm Kohler, Lars S Maier, Stefan Buchner, Michael Arzt
OBJECTIVE: In patients with ST-segment elevation myocardial infarction (STEMI), disturbed cardiac repolarization before percutaneous coronary intervention (PCI) is a risk factor for malignant ventricular arrhythmia. We tested the hypothesis that sleep-disordered breathing (SDB) in patients with STEMI is associated with disturbed cardiac repolarization. METHODS: Thirty-three patients with STEMI who underwent PCI were prospectively enrolled. To assess cardiac repolarization, the heart-rate corrected interval from the peak of the T wave to the end of the T wave (TpTec) and QTc intervals were assessed with 12-lead electrocardiography before PCI, within 24 h after PCI, and 12 weeks after PCI...
May 2017: Sleep Medicine
https://www.readbyqxmd.com/read/27484657/the-normal-electrocardiogram-resting-12-lead-and-electrocardiogram-monitoring-in-the-hospital
#3
REVIEW
Patricia R E Harris
The electrocardiogram (ECG) is a well-established diagnostic tool extensively used in clinical settings. Knowledge of cardiac rhythm and mastery of cardiac waveform interpretation are fundamental for intensive care nurses. Recognition of the normal findings for the 12-lead ECG and understanding the significance of changes from baseline in continuous cardiac monitoring are essential steps toward ensuring safe patient care. This article highlights historical developments in electrocardiography, describes the normal resting 12-lead ECG, and discusses the need for continuous cardiac monitoring...
September 2016: Critical Care Nursing Clinics of North America
https://www.readbyqxmd.com/read/22661123/effects-of-dose-ranging-of-adenosine-infusion-on-electrocardiographic-findings-during-and-after-general-anesthesia
#4
RANDOMIZED CONTROLLED TRIAL
Yan-Xia Sun, Ashraf S Habib, Tom Wenger, Irwin Gratz, David Glick, Rishimani Adsumelli, Mary R Creed, Tong J Gan
PURPOSE: To assess changes in the electrocardiogram (ECG) associated with intraoperative infusion of adenosine in patients undergoing open abdominal gynecological surgery. METHODS: One hundred and sixty-six patients undergoing gynecological surgery were randomly assigned to receive one of four doses of adenosine infusion (25, 50, 100, or 200 μg/kg/min) or matching placebo. Study drug administration was started at skin incision and discontinued at end of surgery...
October 2012: Journal of Anesthesia
https://www.readbyqxmd.com/read/14712187/influence-of-hand-carried-ultrasound-on-bedside-patient-treatment-decisions-for-consultative-cardiology
#5
COMPARATIVE STUDY
John Gorcsan, Prasant Pandey, L Elif Sade
To test the hypothesis that hand-carried ultrasound (HCU) may influence patient treatment on consultative cardiology rounds, 235 patients who were hospitalized (aged 65 +/- 10 years) were studied. First, routine treatment decisions regarding diagnostic workup and therapy were made from patient history, physical examination, 12-lead electrocardiogram, and chart data. Second, a goal-directed HCU study was performed in <10 minutes focusing on left ventricular global and regional function, wall thickness, and presence of pericardial effusion, followed by a reassessment of treatment decisions...
January 2004: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/1700076/electrocardiographic-ambulatory-monitoring-with-a-real-time-analysis-system
#6
A Ferraioli, G Scotto di Quaquaro, G Murino, C Romaldo, G Di Mauro
The analysis of records collected during long-term ambulatory electrocardiographic monitoring has traditionally involved the review of massive data, either manually or with the aid of interactive scanning computers. Many factors complicate this analysis, including the use of analog tape for storage of electrocardiographic waveforms, the need to analyze 100,000 waveforms from an average 24-hour study, and the need to deal with an interface that compresses 24 hours of data into as little as 6 minutes on a screen...
October 1990: Journal of Clinical Monitoring
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