Acute heart failure in subtropical climates: clinical characteristics, management, and outcomes in the Canary Islands versus continental Spain - the CANAR-ICA study results

Insuficiencia cardiaca aguda; Clima subtropical; Servicios de urgencias hospitalariosInsuficiència cardíaca aguda; Clima subtropical; Serveis d'urgències hospitalarisAcute heart failure; Subtropical climate; Hospital emergency servicesObjectives: To determine whether there are differences in the clinical characteristics, management, and outcome of episodes of acute heart failure (AHF) in residents of the Canary Islands, where the climate is subtropical, and episodes in continental Spain. Material and methods: Cases were identified in the registry for Epidemiology of Acute Heart Failure in Emergency Departments and categorized as in the Canary Islands or continental Spain. Data for 38 demographic, baseline, clinical, and therapeutic variables were extracted. We analyzed statistics for in-hospital and 30-day mortality, long hospital stay (more than 7 days), and a composite outcome after discharge (revisits or death within 30 days). The results for island and continental patients were compared and adjusted for between-group differences. Results: A total of 18 390 patients were studied, 697 islanders (3.8%) and 17 673 continental patients (96.2%). Comparisons showed that the islanders were younger; more often women; and more likely to have hypertension, diabetes, and a prior AHF episode. Their New York Heart Association functional class was also likely to be higher. However, their rates of dyslipidemia, valve disease, and functional dependence were lower, and they were also less likely to be on reninangiotensin system blockers. Although the severity of cardiac decompensation was similar in island and continental patients, the islanders received more intravenous treatments in the emergency department and were admitted less often. The adjusted risk of a long hospital stay was higher for the islanders (odds ratio [OR], 2.36; 95% CI, 1.52-3.02) but their risk for mortality and the composite outcome did not differ: in-hospital mortality, OR 0.97 (95% CI, 0.68-1.37); 30-day mortality, OR, 0.9 (95% CI, 0.67-1.27); and the post-discharge composite, OR, 1.19 (95% CI, 0.93-1.53). Conclusion: Baseline patient characteristics and clinical management of AHF episodes differ between the subtropical region and those in southern continental Europe. Hospitalization was required less often, but hospital stays were longer.Objetivo. Investigar si existen diferencias clínicas, asistenciales y evolutivas entre los episodios de insuficiencia cardiaca aguda (ICA) desarrollados en residentes en las Islas Canarias (CAN), de clima subtropical, y en los del territorio espa ñol continental (CON). Método. Los pacientes con ICA incluidos en el registro EAHFE se dividieron en CAN o CON. Se recogieron 38 varia bles demográficas, de estado clínico basal, clínicas y terapéuticas. Se analizó la mortalidad intrahospitalaria y a los 30 días, la hospitalización prolongada (> 7 días) y el evento combinado post-alta (reconsulta o muerte a 30 días). Se compararon los pacientes CAN y CON, ajustando los resultados por las diferencias entre grupos. Resultados. Se incluyeron 18.390 pacientes: CAN = 697 (3,8%), CON = 17.673 (96,2%). Tras el ajuste, los CAN eran más jóvenes, más frecuentemente mujeres, tenían más antecedentes de hipertensión, diabetes e ICA previa, y estaban en clase funcional más avanzada, pero tenían menos dislipemia, valvulopatías y dependencia funcional, y recibían me nos frecuentemente inhibidores del eje renina-angiotensina. Aunque la gravedad del episodio de descompensación fue similar, los CAN recibían más tratamientos endovenosos en urgencias y se hospitalizaban menos. El riesgo ajusta do de hospitalización prolongada en los CAN resultó incrementado (OR 2,36; IC 95%:1,52-3,02), pero no hubo dife rencias en la mortalidad intrahospitalaria (OR 0,97; IC 95%: 0,68-1,37), a 30 días (OR 0,9; IC 95%: 0,67-1,27) o en los eventos combinados post-alta a los 30 días (OR 1,19; IC 95%: 0,93-1,53). Conclusiones. Existen diferencias tanto en las características basales como en el manejo clínico de los episodios de insuficiencia cardiaca en los residentes de una región subtropical respecto a los de una zona meridional europea. Además, tienen menor necesidad de hospitalización, aunque estas son más prolongadas

Time-pattern of adverse outcomes after an infection-triggered acute heart failure decompensation and the influence of early antibiotic administration and hospitalisation: results of the PAPRICA-3 study.

To investigate whether patients with an acute heart failure (AHF) episode triggered by infection present different outcomes compared to patients with no trigger and the effects of early antibiotic administration (EAA) and hospitalisation. Two groups were made according to the AHF trigger: infection (G1) or none identified (G2). The primary outcome was 13-week (91-days) all-cause mortality, and secondary outcomes were 13-week post-discharge mortality, readmission or combined endpoint. Comparisons are presented as unadjusted and adjusted (MEESSI risk score) hazard ratios (uHR/aHR) for G1 compared to G2 patients, also estimated by weeks. Stratified analysis by EAA (provided/not provided) and patient disposition (discharged/hospitalised) was performed. We included 6727 patients (G1 = 3973; G2 = 2754). The 13-week mortality uHR was 1.11 (0.99-1.25; p = 0.06; with significant increases in the first 3 weeks), and the aHR was 0.91 (0.81-1.02; p = 0.11). There were no differences in unadjusted secondary post-discharge outcomes; however, G1 outcomes significantly improved after adjustment: aHR 0.83 (0.71-0.96; p = 0.01) for mortality, 0.92 (0.84-0.99; p = 0.04) for readmission, and 0.92 (0.85-0.99; p = 0.04) for the combined endpoint. We found a differentiated effect of hospitalisation (p  AHF triggered by infection is not associated with a higher mid-term mortality and has better post-discharge outcomes; however, the first 3 weeks are an extremely vulnerable period. Since hospitalisation could have a role in limiting adverse post-discharge events, and EAA in reducing mortality, these relationships should be prospectively explored in further studies

Ambient temperature and atmospheric pressure at discharge as precipitating factors in immediate adverse events in patients treated for decompensated heart failure

To investigate the relationship of ambient temperature and atmospheric pressure (AP) at patient discharge after an episode of acute heart failure (AHF) with very early post-discharge adverse outcomes. We analyzed 14,656 patients discharged after an AHF episode from 26 hospitals in 16 Spanish cities. The primary outcome was the 7-day post-discharge combined adverse event (emergency department -ED- revisit or hospitalization due to AHF, or all-cause death), and secondary outcomes were these three adverse events considered individually. Associations (adjusted for patient and demographic conditions, and length of stay -LOS- during the AHF index episode) of temperature and AP with the primary and secondary outcomes were investigated. We used restricted cubic splines to model the continuous non-linear association of temperature and AP with each endpoint. Some sensitivity analyses were performed. Patients were discharged after a median LOS of 5 days (IQR = 1-10). The highest temperature at discharge ranged from - 2 to 41.6 °C, and AP was from 892 to 1037 hPa. The 7-day post-discharge combined event occurred in 1242 patients (8.4%), with percentages of 7-day ED-revisit, hospitalization and death of 7.8%, 5.1% and 0.9%, respectively. We found no association between the maximal temperature and AP on the day of discharge and the primary or secondary outcomes. Similarly, there were no significant associations when the analyses were restricted to hospitalized patients (median LOS = 7 days, IQR = 4-11) during the index event, or when lag-1, lag-2 or the mean of the 3 post-discharge days (instead of point estimation) of ambient temperature and AP were considered. Temperature and AP on the day of patient discharge are not independently associated with the risk of very early adverse events during the vulnerable post-discharge period in patients discharged after an AHF episode

Influence of the length of hospitalisation in post-discharge outcomes in patients with acute heart failure: Results of the LOHRCA study.

To investigate the relationship between length of hospitalisation (LOH) and post-discharge outcomes in acute heart failure (AHF) patients and to ascertain whether there are different patterns according to department of initial hospitalisation. Consecutive AHF patients hospitalised in 41 Spanish centres were grouped based on the LOH (15 days). Outcomes were defined as 90-day post-discharge all-cause mortality, AHF readmissions, and the combination of both. Hazard ratios (HRs), adjusted by chronic conditions and severity of decompensation, were calculated for groups with LOH >6 days vs. LOH 6 days vs. LOH We included 8563 patients (mean age: 80 (SD = 10) years, 55.5% women), with a median LOH of 7 days (IQR 4-11): 2934 (34.3%) had a LOH 15 days. The 90-day post-discharge mortality was 11.4%, readmission 32.2%, and combined endpoint 37.4%. Mortality was increased by 36.5% (95%CI = 13.0-64.9) when LOH was 11-15 days, and by 72.0% (95%CI = 42.6-107.5) when >15 days. Conversely, no differences were found in readmission risk, and the combined endpoint only increased 21.6% (95%CI = 8.4-36.4) for LOH >15 days. Stratified analysis by hospitalisation departments rendered similar post-discharge outcomes, with all exhibiting increased mortality for LOH >15 days and no significant increments in readmission risk. Short hospitalisations are not associated with worse outcomes. While post-discharge readmissions are not affected by LOH, mortality risk increases as the LOH lengthens. These findings were similar across hospitalisation departments