Palpitations: documentation that holds up
Most palpitations are benign, but a few signal a rhythm that can cause sudden death. The defensible chart documents the ECG interpretation (looking for the dangerous substrates), the red-flag history, and — for intermittent symptoms with a normal ECG — the monitoring plan rather than a flat "reassured."
01What's at stake
The ECG is the one near-universal test, because the dangerous causes hide there or in the history: ventricular tachycardia, pre-excitation (WPW), the channelopathies (long QT, Brugada), and structural disease (HOCM, ARVC). When the rhythm is intermittent and the ECG is normal, the safety net is appropriate ambulatory monitoring and follow-up.
02Can't-miss causes
- Ventricular tachycardia — sustained/wide-complex; structural heart disease.
- Pre-excitation (WPW) — delta wave; danger with AF (avoid AV-nodal blockers).
- Channelopathies — long QT, Brugada pattern, short QT.
- Structural disease — HOCM, arrhythmogenic RV cardiomyopathy.
- Secondary causes — ACS, PE, electrolyte derangement, thyrotoxicosis, stimulants/drugs.
03History & exam red flags
- Syncope or near-syncope with the palpitations? → malignant arrhythmia
- Exertional onset, or known/suspected structural heart disease? → VT/HOCM
- Family history of sudden death <50 or inherited arrhythmia? → channelopathy/cardiomyopathy
- Sustained, rapid, irregular, or "pounding" with chest pain/dyspnea? → tachyarrhythmia / ACS / PE
- Weight loss/tremor, stimulant use, vomiting/diuretics? → thyroid / drugs / electrolytes
Skip the typing
Work the case in the Palpitations Workup — it records the ECG, electrolytes, and TSH, and assembles an MDM that documents the dangerous rhythms and secondary causes were considered and the disposition reasoning.
04Testing & disposition
- 12-lead ECG on everyone — hunt for VT, a delta wave (WPW), prolonged QTc, Brugada pattern, LVH/HOCM features, ischemia, and ectopy; capture a rhythm strip if symptomatic.
- Targeted tests — electrolytes, TSH, troponin if ACS suspected; hCG; tox when indicated.
- Echo for suspected structural disease (often outpatient).
- Intermittent symptoms, normal ECG → ambulatory monitoring (Holter/event/patch monitor) and cardiology follow-up; admit/monitor when red flags or a documented dangerous rhythm are present.
05What to document
06Where charts fail
- No documented ECG interpretation (the one near-universal test).
- Missing a delta wave (WPW), long QT, or Brugada pattern on the ECG.
- Not eliciting the red flags — syncope, exertional onset, family history of sudden death.
- "Reassured" for intermittent symptoms without arranging ambulatory monitoring.
- Overlooking secondary causes (thyroid, electrolytes, stimulants, PE).
07Sources
- Wexler RK, Pleister A, Raman SV. Outpatient approach to palpitations. Am Fam Physician. 2017;96(12):784-789.
- Raviele A, Giada F, Bergfeldt L, et al. Management of patients with palpitations: a position paper from the European Heart Rhythm Association. Europace. 2011;13(7):920-934.
- Probst MA, Mower WR, Kanzaria HK, et al. Analysis of emergency department visits for palpitations (NHAMCS). Am J Cardiol. 2014;113(10):1685-1690.
- Giada F, Gulizia M, Francese M, et al. Recurrent unexplained palpitations: the role of prolonged monitoring (RUP study). J Am Coll Cardiol. 2007;49(19):1951-1956.
© 2026 Kim Trinh, MD. All rights reserved. Educational only — synthesized from primary literature. Synthetic examples. Not medical advice — apply local protocol and judgment.