Impact of a Prior Cancer Diagnosis on Quality of Care and Survival Following Acute Myocardial Infarction: Retrospective Population-Based Cohort Study in England.

BACKGROUND: An increasing proportion of patients with cancer experience acute myocardial infarction (AMI). We investigated differences in quality of AMI care and survival between patients with and without previous cancer diagnoses. METHODS: A retrospective cohort study using Virtual Cardio-Oncology Research Initiative data. Patients aged 40+ years hospitalized in England with AMI between January 2010 and March 2018 were assessed, ascertaining previous cancers diagnosed within 15 years. Multivariable regression was used to assess effects of cancer diagnosis, time, stage, and site on international quality indicators and mortality. RESULTS: Of 512 388 patients with AMI (mean age, 69.3 years; 33.5% women), 42 187 (8.2%) had previous cancers. Patients with cancer had significantly lower use of ACE (angiotensin-converting enzyme) inhibitors/angiotensin receptor blockers (mean percentage point decrease [mppd], 2.6% [95% CI, 1.8-3.4]) and lower overall composite care (mppd, 1.2% [95% CI, 0.9-1.6]). Poorer quality indicator attainment was observed in patients with cancer diagnosed in the last year (mppd, 1.4% [95% CI, 1.8-1.0]), with later stage disease (mppd, 2.5% [95% CI, 3.3-1.4]), and with lung cancer (mppd, 2.2% [95% CI, 3.0-1.3]). Twelve-month all-cause survival was 90.5% in noncancer controls and 86.3% in adjusted counterfactual controls. Differences in post-AMI survival were driven by cancer-related deaths. Modeling improving quality indicator attainment to noncancer patient levels showed modest 12-month survival benefits (lung cancer, 0.6%; other cancers, 0.3%). CONCLUSIONS: Measures of quality of AMI care are poorer in patients with cancer, with lower use of secondary prevention medications. Findings are primarily driven by differences in age and comorbidities between cancer and noncancer populations and attenuated after adjustment. The largest impact was observed in recent cancer diagnoses (<1 year) and lung cancer. Further investigation will determine whether differences reflect appropriate management according to cancer prognosis or whether opportunities to improve AMI outcomes in patients with cancer exist.

Prevalence and outcome of cirrhosis patients admitted to UK intensive care: a comparison against dialysis-dependent chronic renal failure patients.

PURPOSE: Patients with decompensated liver cirrhosis who are admitted to intensive care units (ICU) are perceived, within the UK, as having a particularly poor prognosis. METHODS: We performed a descriptive analysis of cirrhosis patients admitted to general critical care units 1995-2008 compared to patients admitted with pre-existing chronic renal failure. Data were obtained from the Intensive Care National Audit and Research Centre Case Mix Programme Database incorporating 192 adult critical care units in England, Wales and Northern Ireland. RESULTS: Cirrhosis accounted for 2.6 % (16,096 patients) of total admissions with mean age 52.5 years and male preponderance (~60 %). Hospital mortality was high (>55 %) although this improved 5 % in recent years, and median length of stay was short (2.5 days). Mortality in cirrhotics with severe sepsis requiring organ support was 65-90 %, compared to 33-39 % in those without. Conversely, patients with chronic renal failure had lower mortality (42 %) despite similar characteristics and higher acute physiology and chronic health evaluation (APACHE) II scores. The APACHE II score under-predicted mortality in cirrhotics. CONCLUSIONS: Cirrhosis patients exhibit worse outcomes compared to pre-existing renal failure patients, despite similar characteristics. Survival worsens considerably with organ failure, especially with sepsis. They represent a small number of admissions, albeit increasing over recent years, and, in general, have a short ICU stay. Patients with single organ failure have acceptable survival rates and mortality has improved; although we have no data on those refused ICU admission potentially causing survival bias. Given the extremely high mortality in patients with multi-organ failure, support should be limited/withdrawn in such patients.