ECG Findings Associated With Cocaine Use in Humans - Page 5
In this setting, the QT interval prolongation (or shortening) reported was generally modest and this parameter often remained within normal limits. Furthermore, only one study described TdP in ...
ECG Challenge: What Is This Irregularly Irregular Rhythm?
2016年3月24日 · The QRS complexes have a normal duration (0.10 sec) and axis between 0° and +90° (positive QRS complex in leads I and aVF). ... Sinus arrhythmia (one P wave …
ECG Findings Associated With Cocaine Use in Humans - Page 4
A study investigating the effects of acute cocaine administration in 14 habitual users by Magnano et al. found a small but significant decrease in PR interval length within 2 min following ...
ECG Challenge: Irregular Pulse in a Hypertensive Patient - Medscape
2024年9月27日 · A P wave occurs before each QRS complex (+) with a stable PR interval (0.20 sec). The P waves are positive in leads I, II, aVF, and V4-V6. This is a normal sinus rhythm.
ECG Challenge: Hyperlipidemia and Irregular Pulse - Medscape
2024年5月22日 · The rate is 75 beats/min. Considering this PP interval, these are regular P waves seen throughout (*). All the PR intervals are the same (0.16 sec). The P waves are …
Methadone-Associated Q-T Interval Prolongation and Torsades
Introduction. Q-T interval prolongation occurs when there is an interruption in the normal balance and flow of ions in the myocardium, increasing the time it takes for repolarization to occur ...
ECG Challenge: What's Causing This Long Pause? - Page 2
2023年8月8日 · The rhythm is regular except for one long RR interval or pause (↔). The rate of the regular QRS complexes is 48 beats/min. A P wave occurs before each QRS complex (+) …
ECG Challenge: COPD Flare-Up and Irregular Heartbeat - Page 2
2024年3月19日 · The following PR interval ( ) is longer (0.36 sec), and the PR intervals become progressively longer thereafter until there is a nonconducted P wave (↓) after complexes 5 and …
ECG Findings Associated With Cocaine Use in Humans - Medscape
Shortened PR interval, lengthened QRS with slurred upstroke of R waves (deep Q waves) in V2–V3 (WPW pattern) ... although often attributable to normal variant of early repolarization; …
PR Prolongation - Medscape
2009年6月23日 · Risk of Events Associated With Each 20-Ms Increment in PR Interval. End point. Multivariable adjusted hazard ratio (95% CI) Atrial fibrillation. 1.11 (1.02–1.22) Pacemaker …