Universidade Federal de São Paulo, SP, Brazil.
Arq Bras Cardiol. 2011 Nov;97(5):402-7. doi: 10.1590/s0066-782x2011005000096. Epub 2011 Oct 7.
Advances in the treatment of heart failure (HF) have resulted in reduced mortality and hospitalization rates. On the other hand, when hospitalized, patients are at high risk of death.
As there are few studies in this group of patients in Brazil, we analyzed the numbers of hospitalization and deaths due to HF in the Brazilian Public Health System (SUS) in the city of São Paulo.
Historical prospective study carried out between 1992 and 2010. The data were obtained from DATASUS. We used Chi-square and t tests for comparison between the periods 1992-1993 and 2008-2009 and logistic regression models when appropriate. The level of significance was set at 5%.
There was a 32% decrease in the number of hospitalizations for HF between 1992-1993 and 2008-2009 (p = 0.002). The in-hospital mortality rate for HF was 15%, with a 15% increase in the period (p = 0.004). Between 1992 and 1993, the mean time of hospitalization for HF was 8.8 days. Between 2008 and 2009, it was 11.3 days (p = 0.001). August was the month with the highest incidence of hospitalizations for HF, 20% higher than in February, the month with the lowest incidence (p = 0.041).
This study showed changes in trends of hospitalization for HF and mortality over the last two decades. We emphasize important implications: 1: 32% decrease in the number of hospitalizations for HF in SUS hospitals in São Paulo; 2: 25% increase in hospitalization time, and 3: seasonal pattern of hospitalization for HF, with a peak in the third quarter.
心力衰竭（HF）治疗的进步降低了死亡率和住院率。另一方面，住院患者死亡风险很高。
由于巴西这一人群的研究较少，我们分析了巴西圣保罗市公立医疗系统（SUS）因 HF 住院和死亡的人数。
这是一项 1992 年至 2010 年间进行的历史前瞻性研究。数据来自 DATASUS。我们使用卡方检验和 t 检验比较了 1992-1993 年和 2008-2009 年两个时期，当合适时使用逻辑回归模型。显著性水平设为 5%。
1992-1993 年至 2008-2009 年期间，HF 住院人数减少了 32%（p=0.002）。HF 的院内死亡率为 15%，在此期间增加了 15%（p=0.004）。1992 年至 1993 年，HF 的平均住院时间为 8.8 天。2008 年至 2009 年，住院时间为 11.3 天（p=0.001）。8 月是 HF 住院人数最高的月份，比 2 月（住院人数最低的月份）高出 20%（p=0.041）。
本研究显示了过去二十年 HF 住院和死亡率趋势的变化。我们强调了重要的影响：1. SUS 医院因 HF 住院的人数减少了 32%；2. 住院时间增加了 25%；3. HF 住院的季节性模式，第三季度达到高峰。
