Holter ECG Report — 72-hour (10–13 Jul 2026)

Predominant rhythm: SINUS RHYTHM — a reassuring study. Total beats 382,391.

• Heart rate: min 78 bpm (13-Jul 05:16), max 115 bpm (10-Jul 22:28), average 88 bpm. Longest RR 1.07 s. Brady beats 0; tachy beats 13,498 (3.5 %); no pauses >2.5 s.
• Ventricular ectopics: 512 total (0.1 % burden) — 502 isolated, 5 couplets, also bigeminy forms; no VT runs (0 runs).
• Supraventricular ectopics: none. Atrial fibrillation: NOT present. AV block (2nd degree or higher): not present. SVT: not present. VTAC (≥3 beats): not present.
• Patient-triggered event: 1 — on 11-Jul (Sat) 09:00, symptoms "shortness of breath, weakness/fatigue, chest discomfort/pain" — rhythm within ±5 min: normal sinus rhythm (NSR).

Clinical significance: Over 72 hours covering her symptomatic episode, there is no arrhythmic correlate — no AF, no VT, no pauses, no high-grade block, and trivial ectopic burden (a big improvement on the in-hospital polymorphic PVC/VT episodes of Feb–Mar 2026 managed with Xylocard/Cordarone/Mexiletine). The reported chest discomfort/breathlessness occurred in sinus rhythm, pointing away from arrhythmia and toward her pulmonary/effusion status (severe PAH, re-accumulating pleural effusions) as the driver of symptoms. Resting rate runs high-normal (avg 88, min only 78 — blunted nocturnal dip).