Dr. Smith's ECG Blog
MAY 5, 2023
Krantz et al authored a State-of-the-Art Review on Cardiovascular Complications of Opioid Use ( JACC 77(2):205-223, 2021 ) — in which mechanisms from Opioid Overdose that detail arrhythmia production ( up to cardiac arrest ) are elucidated — thereby providing an explanation for the unusual arrhythmias in today's case.
Ken Grauer, MD
OCTOBER 13, 2023
Even if we stopped here — We could conclude the following: There is marked bradycardia in today's rhythm ( ie, Heart rate in the low 30s ). Finally — If today's patient does not have significant underlying coronary disease — then her bradycardia with AV block may be the result of SSS ( S ick S inus S yndrome ).
Ken Grauer, MD
JANUARY 20, 2024
Looking first at the long-lead II rhythm strip — there is significant bradycardia , with a heart R ate just under 40/minute. But the point to emphasize — is that it should only take seconds to recognize that there is bradycardia from significant AV block. = Would you approve her for a nonemergent surgical procedure?
Ken Grauer, MD
SEPTEMBER 22, 2023
The rhythm is sinus bradycardia at a rate just over 50/minute. The November 27, 2021 post ( LA-RA reversal ). Figure-2: The repeat ECG in today's case — recorded as soon as the treating clinician recognized the lead misplacement. ( To improve visualization — I've digitized the original ECG using PMcardio ).
Dr. Smith's ECG Blog
JULY 21, 2024
There was no evidence bradycardia leading up to the runs of PMVT ( as tends to occur with Torsades ). If there had been — a temporary atrial pacemaker could have been considered as a way of increasing the heart rate to suppress a bradycardia-dependent arrhythmia ("overdrive pacing").
Journal of Cardiovascular Electrophysiology
DECEMBER 1, 2023
Abstract Introduction Severe transitory episodes of bradycardia with subsequent syncope in children are common, and generally portend a benign prognosis. Patients with SP or AVB, 21 years of age or younger, who underwent CNA between 2015 and 2021 were included. Methods This is a single-center, case series study. The median age was 18.9
Ken Grauer, MD
OCTOBER 27, 2023
That said — obvious findings include: i ) Marked bradycardia! — The October 25, 2021 post in Dr. Smith's ECG Blog — My Comment ( at the bottom of the page ) reviews my approach to another case of a Dual-Level Wenckebach block. The rhythm in Figure-1 is complex — and defies precise interpretation without careful study. be regular! —
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