Nisar Muhammad Umer, Munir Muhammad Bilal, Sharbaugh Michael S, Thoma Floyd W, Althouse Andrew D, Saba Samir
Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
Heart and Vascular Institute, West Virginia University, Morgantown, WV, USA.
Indian Pacing Electrophysiol J. 2018 Jan-Feb;18(1):6-12. doi: 10.1016/j.ipej.2017.07.010. Epub 2017 Jul 19.
Atrial fibrillation (AF) is the most common sustained arrhythmia encountered in clinical practice. Patients presenting with AF are often admitted to hospital for rhythm or rate control, symptom management, and/or anticoagulation. We investigated temporal trends in AF hospitalizations in United States from 1996 to 2010.
Data were obtained from the National Hospital Discharge Survey (NHDS), a national probability sample survey of discharges conducted annually by National Center for Health Statistics. Because of the survey design, sampling weights were applied to the raw NHDS data to produce national estimates. Hospitalizations with a primary diagnosis of AF were identified using International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) code of 427.31. Weighted least squares regression was used to test for linear trends in the number of AF admissions, length of stay, and inpatient mortality. We further stratified AF admissions based on patients' age, gender, and race.
Admissions for a primary diagnosis of AF increased from approximately 286,000 in 1996 to about 410,000 in 2010 with a significant linear trend (β = 9470 additional admissions per year, p < 0.001). The trend of increased AF admissions was uniform across patient sub-groups. Overall, mean length of stay for AF admissions was 3.75 days, and this remained relatively stable over time (β = 0.002 days, p = 0.884). Inpatient mortality was 0.96% and also remained stable over time (β = 0.031%, p = 0.181).
Our data demonstrate an increase in the number of AF admissions but constant length of stay and mortality over time.
心房颤动（AF）是临床实践中最常见的持续性心律失常。患有AF的患者常因节律或心率控制、症状管理和/或抗凝治疗而入院。我们调查了1996年至2010年美国AF住院治疗的时间趋势。
数据来自国家医院出院调查（NHDS），这是一项由国家卫生统计中心每年进行的全国出院概率抽样调查。由于调查设计，对原始NHDS数据应用抽样权重以得出全国估计数。使用国际疾病分类第9版临床修订本（ICD-9-CM）代码427.31确定以AF为主要诊断的住院病例。加权最小二乘回归用于检验AF入院人数、住院时间和住院死亡率的线性趋势。我们还根据患者的年龄、性别和种族对AF入院病例进行了分层。
以AF为主要诊断的入院人数从1996年的约286,000例增加到2010年的约410,000例，呈显著线性趋势（β=每年增加9470例入院，p<0.001）。AF入院人数增加的趋势在各患者亚组中是一致的。总体而言，AF入院患者的平均住院时间为3.75天，且随时间相对保持稳定（β=0.002天，p=0.884）。住院死亡率为0.96%，也随时间保持稳定（β=0.031%，p=0.181）。
我们的数据表明AF入院人数增加，但住院时间和死亡率随时间保持不变。
