Dr. Smith's ECG Blog

JANUARY 23, 2024

The physiologic reason for this — is thought to be the result of momentarily increased circulation from mechanical contraction arising from the "sandwiched in" QRS complex. The QRS complex in ECG #1 is wide.

Tachycardia 106

Tachycardia Arrhythmia Heart Disease Sudden Cardiac Death 106

Dr. Smith's ECG Blog

NOVEMBER 24, 2017

The rule of thumb is less accurate, and the risk is higher because a long QT in the presence of bradycardia ("pause dependent" Torsades) predisposes to Torsades. 6) Use a different rule of thumb for bradycardia : Manually approximate both the QT and the RR interval. 3) At heart rates below 60, far more caution is due.

Bradycardia 52

Bradycardia Article Atrial Fibrillation Chest Pain 52

Dr. Smith's ECG Blog

JANUARY 30, 2019

Pediatric and elderly patients were more predisposed to developing an arrhythmic event in the setting of fever [7]. Circulation, 117, 1890–1893. [3]: Recently the rate of true arrhythmic events related to fevers in the classic Brugada Type 1 syndrome was explored by Michowitz et al. Heart Rhythm, 13(7): 1515-1520. [2]:

Heart Rhythm 52

Heart Rhythm Sudden Cardiac Death Arrhythmia STEMI 52

Dr. Smith's ECG Blog

DECEMBER 5, 2023

Acute coronary syndrome in a pediatric patient? An ECG was perfomed on arrival to our ED: NSR with ST elevation II,III, aVF with reciprocal depression in aVL Would you refer this pediatric patient for emergent PCI? Circulation. Circulation. Erratum in: Circulation. mg/L and a normal WBC of 8.8. doi: 10.1161/CIR.0000000000001001.

Pediatrics 119

Pediatrics Pericarditis COVID-19 Congenital Heart Disease 119