Distinction between atrioventricular reciprocating tachycardia and atrioventricular node re-entrant tachycardia in the adult population based on P wave location Should we reconsider the value of some ECG criteria according to gender and age?
Why the study?
Does P wave location on ECG reliably distinguish between AVNRT and AVRT when considering gender and age in adult patients without pre-excitation?
Population
161 successive adult patients without pre-excitation presenting with narrow QRS tachycardia
Design
Cohort
Authors
Discussion
Loading...
Member takes
Implication
Visible P waves warrant caution inferring AVRT over AVNRT in women; leaves open prospective validation of sex-adjusted ECG criteria.
Structured PICO
Does P wave location on ECG reliably distinguish between AVNRT and AVRT when considering gender and age in adult patients without pre-excitation?
P
Population
161 successive adult patients without pre-excitation presenting with narrow QRS tachycardia (137 anterior slow-fast AVNRT and 26 orthodromic AVRT)
I
Intervention
ECG P wave location analysis (invisible, visible after QRS, or R' in V1 and/or S in II) stratified by gender and age
O
Outcome
Mechanism of arrhythmia (AVNRT vs AVRT) assessed by electrophysiological study and confirmed by radiofrequency ablation efficacysurrogate
While visible P waves on ECG traditionally suggest AVRT, this finding is frequently caused by AVNRT in elderly and female patients, highlighting the need to consider demographic factors in ECG interpretation.
Cite This Study
Philippe Maury (2002) studied this question.