2009
DOI: 10.1164/rccm.200807-1067oc
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Temporal Clustering of Exacerbations in Chronic Obstructive Pulmonary Disease

Abstract: Exacerbations are not random events but cluster together in time such that there is a high-risk period for recurrent exacerbation in the 8-week period after an initial excerbation.

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Cited by 234 publications
(175 citation statements)
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“…After rhinovirus infection subjects with COPD reported significantly increased lower respiratory symptoms above their baseline symptoms and 10 of 11 fulfilled the predetermined criteria for an acute exacerbation that was based on accepted criteria from studies of naturally occurring exacerbations (2,(33)(34)(35). The control subjects also developed lower respiratory symptoms, but these were of lesser severity and duration than for the subjects with COPD.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…After rhinovirus infection subjects with COPD reported significantly increased lower respiratory symptoms above their baseline symptoms and 10 of 11 fulfilled the predetermined criteria for an acute exacerbation that was based on accepted criteria from studies of naturally occurring exacerbations (2,(33)(34)(35). The control subjects also developed lower respiratory symptoms, but these were of lesser severity and duration than for the subjects with COPD.…”
Section: Discussionmentioning
confidence: 99%
“…Daily total lower respiratory symptom scores were increased significantly over baseline on in the COPD group and on Days 3-9 in the control subjects ( Figure 1B). Daily lower respiratory symptoms were significantly greater in the COPD group compared with control subjects on Days 11,14,27,29,34,and 35. When the individual symptoms were analyzed daily breathlessness scores were increased over baseline on Days 5-12 in the COPD group, whereas breathlessness did not increase significantly in the control subjects ( Figure 1C).…”
Section: Clinical Responses To Rhinovirus Infectionmentioning
confidence: 92%
“…7 The concept of a frequent exacerbator phenotype was first introduced in an observational study using data from the London COPD cohort, which found a cutoff of approximately 2 exacerbations per patient per year to more likely predict recurrent exacerbations. 8 A recent pivotal observational study, Evaluation of COPD Longitudinally to Identify Predictive Surrogate Endpoints (ECLIPSE), further…”
mentioning
confidence: 99%
“…Действительно, при наб людении течения заболевания у пациентов с ХОБЛ на протяжении нескольких лет можно выявить, что наличие частых обострений в анамнезе является на илучшим предиктором будущих обострений [4,15,16]. Кроме того, получены доказательства, что при перенесенном обострении повышается восприимчи вость больного ХОБЛ к развитию последующего обо стрения, т. е. обострения имеют тенденцию к груп пированию во времены ′ е кластеры [17,18]. Наиболее опасным времены ′ м интервалом для развития по вторного нового обострения (или рецидива) являют ся первые 8 нед.…”
Section: этиология и эпидемиология обострений хоблunclassified
“…Наиболее опасным времены ′ м интервалом для развития по вторного нового обострения (или рецидива) являют ся первые 8 нед. после начального обострения [17,18].…”
Section: этиология и эпидемиология обострений хоблunclassified