Garcia-Olivé Ignasi, Fiz Jose Antonio, Sanz-Santos Jose, Andreo Felipe, Sánchez-Martínez Estefanía, Sampere Jaume, Muchart Jordi, Michavila Josep Maria, Ruiz-Manzano Juan
Respiratory Service, Hospital Universitari Germans Trias i Pujol, Carretera del Canyetsn, Badalona, Barcelona, 08916, Spain.
Multidiscip Respir Med. 2012 Dec 5;7(1):50. doi: 10.1186/2049-6958-7-50.
Although some authors have suggested that there is some seasonal periodicity in hemoptysis, temporal patterns of hemoptysis have been poorly investigated. The aim of this study is to describe the temporal pattern of severe hemoptysis which required bronchial artery embolization (BAE).
All consecutive patients with at least one episode of hemoptysis which required BAE during a 13-year period were included. Recurring hemoptysis requiring BAE in a patient with previous embolization was included as a new hemoptysis event, unless it occurred within one month from the prior event. Lineal regression was applied to compute the tendency of occurrence of cases along 13 years of record data. The daily and monthly distributions of embolizations were used to study the weekly and monthly seasonal indexes.
Hemoptysis requiring BAE occurred with some monthly variation demonstrated with two monthly peaks, with the first one occurring during April and the second one during November.
Hemoptysis occurred with two monthly peaks. This seasonal trend might be due to different prevalence of respiratory tract infections or to some weather variables. Identification of significant environmental factors could be useful to improve preventive measures.
尽管一些作者认为咯血存在一定的季节性周期，但咯血的时间模式尚未得到充分研究。本研究的目的是描述需要进行支气管动脉栓塞术（BAE）的严重咯血的时间模式。
纳入在13年期间所有至少有一次咯血发作且需要进行BAE的连续患者。既往有栓塞史且再次出现需要BAE的咯血患者，除非在前次事件发生后1个月内出现，否则作为新的咯血事件纳入。应用线性回归分析13年记录数据中病例发生的趋势。栓塞的每日和每月分布用于研究每周和每月的季节指数。
需要BAE的咯血呈现出一定的月度变化，有两个月度高峰，第一个高峰出现在4月，第二个高峰出现在11月。
咯血有两个月度高峰。这种季节性趋势可能是由于呼吸道感染的不同患病率或某些天气变量所致。识别重要的环境因素可能有助于改进预防措施。
