Publications by authors named "Karam Alzuhairi"

Background: Landmark trials showed that invasive pressure measurement (Fractional Flow Reserve, FFR) was a better guide to coronary stenting than visual assessment. However, present-day interventionists have benefited from extensive research and personal experience of mapping anatomy to hemodynamics.

Aims: To determine if visual assessment of the angiogram performs as well as invasive measurement of coronary physiology.

View Article and Find Full Text PDF

Background: Advances in percutaneous coronary intervention (PCI) has made the possibility of facilitating same day discharge (SDD) of patients undergoing intervention. We sought to investigate the feasibility, safety and economic impact of such a service.

Methods: We retrospectively collected data on all patients undergoing outpatient PCI at our institution over a 12-month period.

View Article and Find Full Text PDF

Aims: To predict irreversible reduction in left ventricular ejection fraction (LVEF) during admission for ST-segment elevation myocardial infarction (STEMI) using cardiac magnetic resonance (CMR) in addition to classical clinical parameters. Irreversible reduction in LVEF is an important prognostic factor after STEMI which necessitates medical therapy and implantation of prophylactic implantable cardioverter defibrillator (ICD).

Methods And Results: A post-hoc analysis of DANAMI-3 trial program (Third DANish Study of Optimal Acute Treatment of Patients With ST-elevation Myocardial Infarction) which recruited 649 patients who had CMR performed during index hospitalization and after 3 months.

View Article and Find Full Text PDF

Introduction: National discharge registers are important and cost-effective data sources for administrative and research purposes, but their value depends much on the validity of the registered data. The objective of this study was to assess the validity of heart failure (HF) diagnoses (ICD10: I50.0-I50.

View Article and Find Full Text PDF

Background: Patients with non-ST-segment elevation myocardial infarction (NSTEMI) without obstructive coronary artery disease (CAD) are often managed differently than those with obstructive CAD, therefore we aimed in this study to examine the long-term prognosis of patients with NSTEMI according to the degree of CAD on coronary angiography (CAG).

Methods: We examined 8.889 consecutive patients admitted for first time NSTEMI during 2000-2011, to whom CAG was performed.

View Article and Find Full Text PDF

Introduction: The Danish National Patient Register (DNPR)is widely used for research and administrative purposes. However, its usability is highly dependent of the validity of the registered data. We therefore aimed to determine the positive predictive value (PPV) of angina pectoris and acute coronary syndrome (ACS) in the DNPR.

View Article and Find Full Text PDF

Aims: To examine temporal changes in incidence and 1-year mortality of first myocardial infarction (MI) in different age groups for both genders in Denmark over a 35-year period (1978-2012).

Methods And Results: Patients aged 30 years or older admitted with first MI in Denmark from 1978 to 2012 were included (n = 316 790). Overall, first MI incidence per 100 000 person-years (/105 p.

View Article and Find Full Text PDF

Objective: Schizophrenia is associated with a reduction of the lifespan by 20 years, with type II diabetes and cardiovascular disease contributing the most to the increased mortality. Unrecognised or silent myocardial infarction (MI) occurs in ~30% of the population, but the rates of unrecognised MI in patients with schizophrenia have only been sparsely investigated.

Method: Electrocardiograms (ECG) from three psychiatric hospitals in Denmark were manually interpreted for signs of previous MI.

View Article and Find Full Text PDF

Background: The diagnosis of acute myocardial infarction requires troponin assessment in at least two blood samples 6-9 hours apart, with an optional third sample 12-24 hours after admission if suspicion is high. Yet, in many institutions, this third sample is routinely drawn. This study aimed to evaluate cost-effectiveness of this third sample of troponin.

View Article and Find Full Text PDF