Natural history and prognostic implications of left ventricular end-diastolic pressure in reperfused ST-segment elevation myocardial infarction: an analysis of the thrombolysis in myocardial infarction (TIMI) II randomized controlled trial

• Published in: BMC cardiovascular disorders 2021-05, Vol.21 (1), p.243-243, Article 243
• Main Authors: Khan, Arshad A, Al-Omary, Mohammed S, Collins, Nicholas J, Attia, John, Boyle, Andrew J
• Format: Article
• Language: English
• Subjects: Aged; Angioplasty; Blood pressure; Cardiac arrhythmia; Cardiac Catheterization; Cardiac stress tests; Care and treatment; Catheterization; Congestive heart failure; Coronary Artery Bypass - adverse effects; Ejection fraction; Female; Health aspects; Heart attack; Heart attacks; Heart failure; Humans; Intubation; Left ventricular end diastolic pressure; Left ventricular function; Male; Middle Aged; Mortality; Myocardial infarction; Natural history; New South Wales; Patient outcomes; Percutaneous Coronary Intervention - adverse effects; Prognosis; Reperfusion; ST Elevation Myocardial Infarction - diagnosis; ST Elevation Myocardial Infarction - physiopathology; ST Elevation Myocardial Infarction - therapy; ST-segment elevation myocardial infarction; Thrombolysis; Thrombolytic therapy; Thrombolytic Therapy - adverse effects; Time Factors; Treatment Outcome; Variables; Veins & arteries; Ventricle; Ventricular Function, Left; Ventricular Pressure
• ISSN: 1471-2261; 1471-2261
• DOI: 10.1186/s12872-021-02046-x

The aim of the current study is to assess the natural history and prognostic value of elevated left ventricular end-diastolic pressure (LVEDP) in patients with ST-segment elevation myocardial infarction (STEMI) after reperfusion with thrombolysis; we utilize data from the Thrombolysis in Myocardial Infarction (TIMI) II study. A total of 3339 patients were randomized to either an invasive (n = 1681) or a conservative (n = 1658) strategy in the TIMI II study following thrombolysis. To make the current cohort as relevant as possible to modern pharmaco-invasively managed cohorts, patients in the invasive arm with TIMI flow grade ≥ 2 (N = 1201) at initial catheterization are included in the analysis. Of these, 259 patients had a second catheterization prior to hospital discharge, and these were used to define the natural history of LVEDP in reperfused STEMI. The median LVEDP for the whole cohort was 18 mmHg (IQR: 12-23). Patients were divided into quartiles by LVEDP measured during the first cardiac catheterization. During a median follow up of 3 (IQR: 2.1-3.2) years, quartile 4 (highest LVEDP) had the highest incidence of mortality and heart failure admissions. In the cohort with paired catheterization data, the LVEDP dropped slightly from 18 mmHg (1QR: 12-22) to 15 mmHg (IQR: 10-20) (p = 0.01) from the first to the pre-hospital discharge catheterization. LVEDP remains largely stable during hospitalisation post-STEMI. Elevated LVEDP is a predictor of death and heart failure hospitalization in STEMI patients undergoing successful thrombolysis.