Electrocardiograph changes, troponin levels and cardiac complications after orthopaedic surgery.

Introduction: The relationship between electrocardiograph (ECG) changes and troponin levels after the emergency orthopaedic surgery are not well characterised. The aim of this study was to determine the correlation between ECG changes (ischaemia or arrhythmia), troponin elevations perioperatively and cardiac complications.

Materials And Methods: One hundred and eighty-seven orthopaedic patients over 60 years of age were prospectively tested for troponin I and ECGs were performed on the fi rst 3 postoperative mornings or until discharge.

Does cardiology intervention improve mortality for post-operative troponin elevations after emergency orthopaedic-geriatric surgery? A randomised controlled study.

Objectives: Troponin elevations are common after emergency orthopaedic surgery and confer a higher mortality at one year. The objective was to determine if comprehensive cardiology care after emergency orthopaedic surgery reduces mortality at one year in patients who sustain a post-operative troponin elevation versus standard care.

Methods: A randomised controlled trial was conducted at a metropolitan teaching hospital in Melbourne, Australia.

N-terminal pro-brain natriuretic peptide and angiotensin-converting enzyme-2 levels and their association with postoperative cardiac complications after emergency orthopedic surgery.

The prognostic usefulness of the cardiac biomarkers N-terminal pro-brain natriuretic peptide (NT-proBNP) and angiotensin-converting enzyme 2 (ACE-2), in predicting adverse cardiac outcomes after orthopedic surgery is not well studied. The aim of our study was to determine the usefulness of perioperative NT-proBNP and ACE-2 for predicting cardiac events after emergency orthopedic surgery. The perioperative NT-proBNP and ACE-2 levels were determined in 187 consecutive patients aged >60 years who underwent orthopedic surgery with 1 year of follow-up for any cardiac complications (defined as acute myocardial infarction, congestive cardiac failure, atrial fibrillation, or major arrhythmia) and death.

Usefulness of N-terminal pro-brain natriuretic peptide to predict postoperative cardiac complications and long-term mortality after emergency lower limb orthopedic surgery.

After emergency orthopedic-geriatric surgery, cardiac complications are an important cause of morbidity and mortality. The utility of N-terminal pro-brain natriuretic peptide (NT-pro-BNP) for the prediction of cardiac complications and mortality was evaluated. NT-pro-BNP was tested pre- and postoperatively in 89 patients >60 years of age.

Troponin I and NT-proBNP (N-terminal pro-brain natriuretic peptide) do not predict 6-month mortality in frail older patients undergoing orthopedic surgery.

Objectives: To determine if troponin I and NT-proBNP were predictors of 6-month mortality after emergency orthopedic-geriatric surgery in a frail population.

Design: Prospective observational study.

Setting: Orthopedic-geriatric unit of a metropolitan hospital in Australia.

Incidence of post-operative troponin I rises and 1-year mortality after emergency orthopaedic surgery in older patients.

Objectives: to determine the incidence of post-operative troponin I rises and its association with 1-year all-cause mortality and cardiac events after emergency orthopaedic-geriatric surgery, which has not been studied before.

Methods: one hundred and two patients over the age of 60 were recruited and followed up at 1 year. All consented to serial troponin I measurements peri-operatively.