PT  - JOURNAL ARTICLE
AU  - Pishoy Gouda
AU  - George Veenhuyzen
AU  - Bryan Har
TI  - Fifty-year-old woman with lightheadedness
AID  - 10.1136/heartjnl-2017-311201
DP  - 2017 Aug 01
TA  - Heart
PG  - 1224--1224
VI  - 103
IP  - 15
4099  - http://heart.bmj.com/content/103/15/1224.short
4100  - http://heart.bmj.com/content/103/15/1224.full
SO  - Heart2017 Aug 01; 103
AB  - Clinical introduction A 50-year-old woman presented to the emergency department with a 3-year history of worsening episodes of lightheadedness, anxiety and diaphoresis. She was otherwise healthy. Her cardiovascular physical examination was normal apart from an irregularly irregular pulse of 105 beats per minute. When she arrived in the emergency department, a 12-lead ECG was obtained (figure 1).Figure 1 Patient’s ECG.Question What is the most likely diagnosis?Atrial fibrillation (AF)Atrial premature beatsAtrioventricular (AV) reciprocating tachycardiaDual AV nodal non-reentrant tachycardia (DAVNNT)AV nodal re-entrant tachycardiaQuestion