Nearly 25% of chronic ischaemic heart disease patients dead or hospitalised in six months

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Nearly a quarter of patients with chronic ischaemic cardiovascular disease are dead or hospitalised within six months, reports a European Society of Cardiology (ESC) study published in the European Journal of Preventive Cardiology.1

The Chronic Ischaemic Cardiovascular Disease (CICD) pilot registry was designed to learn what happens to these patients in the six months after being seen by a health professional. The observational study was conducted as part of the EURObservational Research Programme (EORP) of the ESC.

“Coronary artery disease is the leading cause of death worldwide yet some patients appear to get lost in the system after their initial visit to a hospital or outpatient clinic,” said lead author Michel Komajda, of the University Pierre and Marie Curie and Pitié-Salpêtrière Hospital in Paris, France.

The study included 2,420 patients from 100 hospitals and outpatient clinics in ten European countries. Participants had stable coronary disease2 or peripheral artery disease, the most common conditions seen by a cardiologist. Risk factors and treatments were recorded at the start of the study and have been previously reported.3 Treatments and outcomes were recorded at six months.

Follow-up data were available for 2,203 patients, of whom 522 (24%) had died or been rehospitalised during the six months. Factors significantly associated with the risk of dying or being rehospitalised were older age, with a hazard ratio (HR) of 1.17 for every ten years, history of peripheral revascularisation (HR 1.45), chronic kidney disease (HR 1.31) and chronic obstructive pulmonary disease (HR 1.42) (all p<0.05). The majority of the causes of death and rehospitalisation were cardiovascular.

Komajda said: “These patients are at high risk of dying or being rehospitalised in the short-term and should be carefully monitored by physicians. We identified clinical factors which are strongly associated with this high risk which can easily be assessed.”

The rate of prescription of angiotensin converting enzyme inhibitors, beta-blockers (both drugs reduce blood pressure) and aspirin was lower at six months compared to the start of the study (all p<0.02).

“In absolute numbers the reductions were modest but they did reach statistical significance”, Komajda said. “This shows that patients have a better chance of receiving recommended medications while in hospital or directly after an outpatient appointment. Six months later, drugs they should be taking to reduce the risk of death and rehospitalisation are prescribed less frequently.”

He added: “It is likely that there is insufficient handover of these patients to a cardiologist or GP and so their prescriptions are not renewed.”

While the study did not assess the reasons for the reduction in prescriptions, possible factors include patients getting tired of taking pills or not being able to afford them.

Six month rates of death and rehospitalisation were significantly higher in eastern, western and northern European countries compared to those in the south. Given the relatively small number of patients, Komajda acknowledged that firm conclusions could not be drawn, but pointed out: “We anticipated that outcomes would be better in Mediterranean countries and this was correct, probably because of the diet and other lifestyle reasons.”

Komajda concluded: “The study shows that patients with chronic ischaemic cardiovascular disease have a high risk of poor short-term outcomes. Yet some are not receiving recommended preventive medications which could improve their outlook. More efforts are needed to ensure that these patients continue to be monitored and treated after they leave hospital or an outpatient appointment.”

References

1 Komajda M, et al. The chronic ischaemic cardiovascular disease ESC Pilot Registry: Results of the six-month follow-up. European Journal of Preventive Cardiology. 2018. DOI: 10.1177/2047487317751955
2 Undergoing coronary revascularisation or not.
3 Komajda M, et al. EURObservational Research Programme: the Chronic Ischaemic Cardiovascular Disease Registry: Pilot phase (CICD-PILOT). Eur Heart J. 2016;37(2):152–160. doi: 10.1093/eurheartj/ehv437.

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