Outcome and Complications Following Diagnostic Cardiac Catheterisation in Older People

Jenny Walsh Radiology Specialist Registrar; Mark Hargreaves Consultant Cardiologist, Pennine Acute NHS Trust

Disclosures

Br J Cardiol. 2014;21(1):1-4. 

In This Article

Method

A total of 17,325 patients underwent DCC at the Silver Heart Unit, a secondary referral centre within a district general hospital between January 2005 and November 2010. We used computer-generated random numbers to identify 100 patients aged 80 years and older at the time of DCC (group A). A control group (group B) of 100 patients under 70 years of age at the time of DCC was identified by the same method. All patients had been referred for assessment of suspected coronary artery disease (CAD). Patients referred for DCC for other reasons (e.g. valvular heart disease) were not included. Clinical and demographic information was obtained from clinic letters and the computerised pathology system. For each patient the following data were obtained:

  • Age and gender

  • Elective or emergency procedure

  • Number of angina medications at the time of DCC

  • Cardiovascular risk factors:

    • total cholesterol (>5 mmol/L)

    • diabetes

    • renal impairment (estimated glomerular filtration rate [eGFR] <60 ml/min)

    • hypertension

    • smoking status

    • peripheral vascular disease (PVD)

    • history of transient ischaemic attack (TIA) or stroke.

The 'primary outcome' was the preferred intervention following DCC, and the 'secondary outcome' was the intervention the patient eventually received. Both decisions were documented, as were any complications relating to the DCC.

Data were collected from online systems and verified by comparing the data with the hospital case notes in a small, randomly selected sample of 10 patients in each group.

Data were analysed using the Chi-squared statistic and Student's unpaired t-test.

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