Cilostazol for the prevention of pneumonia: a systematic review

Abstract Background Pneumonia is a very common disease, especially among the elderly. Various drugs’ preventive effects against pneumonia have been reported. The antiplatelet drug cilostazol is used to prevent pneumonia, but the robustness of its efficacy is unclear. This review estimates the effect...

Full description

Bibliographic Details
Main Authors: Hirotaka Nakashima, Kazuhisa Watanabe, Hiroyuki Umegaki, Yusuke Suzuki, Masafumi Kuzuya
Format: Article
Language:English
Published: BMC 2018-04-01
Series:Pneumonia
Subjects:
Online Access:http://link.springer.com/article/10.1186/s41479-018-0046-5
_version_ 1811277677076676608
author Hirotaka Nakashima
Kazuhisa Watanabe
Hiroyuki Umegaki
Yusuke Suzuki
Masafumi Kuzuya
author_facet Hirotaka Nakashima
Kazuhisa Watanabe
Hiroyuki Umegaki
Yusuke Suzuki
Masafumi Kuzuya
author_sort Hirotaka Nakashima
collection DOAJ
description Abstract Background Pneumonia is a very common disease, especially among the elderly. Various drugs’ preventive effects against pneumonia have been reported. The antiplatelet drug cilostazol is used to prevent pneumonia, but the robustness of its efficacy is unclear. This review estimates the effectiveness of cilostazol for preventing pneumonia in elderly individuals. Methods The following databases were searched from the earliest record to January 2016, without language restriction (the secondary search was conducted on February 2017): MEDLINE, Cochrane Library, CINAHL, and Ichushi-Web. Studies were included if they were published randomized controlled trials investigating the preventive effect of cilostazol on pneumonia in the elderly. The outcome was the incidence of pneumonia. Results Two trials were identified that met the search criteria (1423 participants). Both trials compared cilostazol with no antiplatelet in patients with a history of cerebral infarction. A meta-analysis was not performed because of the small number of trials and the heterogeneity of the data. Both trials suggested that cilostazol reduced the incidence of pneumonia (risk ratio [RR] 0.40; 95% confidence interval [CI] 0.22–0.73 in one trial, RR 0.20; 95% CI 0.06–0.69 in the other) and the recurrence of cerebral infarction (0.43; 0.21–0.90, 0.53; 0.34–0.81, respectively). The quality of evidence provided by the trials was very low, mainly because of the high risk of bias. Conclusions It is difficult to draw conclusions on the basis of two trials. Moreover, in the two trials, cilostazol could have reduced the incidence of pneumonia via a reduction of the recurrence of cerebral infarction, which suggests that other antiplatelets could also have the same effects. Stronger evidence is required from large trials assessing the effectiveness of cilostazol for the prevention of pneumonia. Trial registration PROSPERO (CRD42016036724).
first_indexed 2024-04-13T00:21:03Z
format Article
id doaj.art-4be32d9056124eba96b936c344164e8e
institution Directory Open Access Journal
issn 2200-6133
language English
last_indexed 2024-04-13T00:21:03Z
publishDate 2018-04-01
publisher BMC
record_format Article
series Pneumonia
spelling doaj.art-4be32d9056124eba96b936c344164e8e2022-12-22T03:10:46ZengBMCPneumonia2200-61332018-04-011011710.1186/s41479-018-0046-5Cilostazol for the prevention of pneumonia: a systematic reviewHirotaka Nakashima0Kazuhisa Watanabe1Hiroyuki Umegaki2Yusuke Suzuki3Masafumi Kuzuya4Centre for Community Liaison and Patient Consultations, Nagoya University HospitalDepartment of Community Healthcare and Geriatrics, Nagoya University Graduate School of MedicineDepartment of Community Healthcare and Geriatrics, Nagoya University Graduate School of MedicineCentre for Community Liaison and Patient Consultations, Nagoya University HospitalDepartment of Community Healthcare and Geriatrics, Nagoya University Graduate School of MedicineAbstract Background Pneumonia is a very common disease, especially among the elderly. Various drugs’ preventive effects against pneumonia have been reported. The antiplatelet drug cilostazol is used to prevent pneumonia, but the robustness of its efficacy is unclear. This review estimates the effectiveness of cilostazol for preventing pneumonia in elderly individuals. Methods The following databases were searched from the earliest record to January 2016, without language restriction (the secondary search was conducted on February 2017): MEDLINE, Cochrane Library, CINAHL, and Ichushi-Web. Studies were included if they were published randomized controlled trials investigating the preventive effect of cilostazol on pneumonia in the elderly. The outcome was the incidence of pneumonia. Results Two trials were identified that met the search criteria (1423 participants). Both trials compared cilostazol with no antiplatelet in patients with a history of cerebral infarction. A meta-analysis was not performed because of the small number of trials and the heterogeneity of the data. Both trials suggested that cilostazol reduced the incidence of pneumonia (risk ratio [RR] 0.40; 95% confidence interval [CI] 0.22–0.73 in one trial, RR 0.20; 95% CI 0.06–0.69 in the other) and the recurrence of cerebral infarction (0.43; 0.21–0.90, 0.53; 0.34–0.81, respectively). The quality of evidence provided by the trials was very low, mainly because of the high risk of bias. Conclusions It is difficult to draw conclusions on the basis of two trials. Moreover, in the two trials, cilostazol could have reduced the incidence of pneumonia via a reduction of the recurrence of cerebral infarction, which suggests that other antiplatelets could also have the same effects. Stronger evidence is required from large trials assessing the effectiveness of cilostazol for the prevention of pneumonia. Trial registration PROSPERO (CRD42016036724).http://link.springer.com/article/10.1186/s41479-018-0046-5AntiplateletCilostazolElderlyPneumoniaSwallowing function
spellingShingle Hirotaka Nakashima
Kazuhisa Watanabe
Hiroyuki Umegaki
Yusuke Suzuki
Masafumi Kuzuya
Cilostazol for the prevention of pneumonia: a systematic review
Pneumonia
Antiplatelet
Cilostazol
Elderly
Pneumonia
Swallowing function
title Cilostazol for the prevention of pneumonia: a systematic review
title_full Cilostazol for the prevention of pneumonia: a systematic review
title_fullStr Cilostazol for the prevention of pneumonia: a systematic review
title_full_unstemmed Cilostazol for the prevention of pneumonia: a systematic review
title_short Cilostazol for the prevention of pneumonia: a systematic review
title_sort cilostazol for the prevention of pneumonia a systematic review
topic Antiplatelet
Cilostazol
Elderly
Pneumonia
Swallowing function
url http://link.springer.com/article/10.1186/s41479-018-0046-5
work_keys_str_mv AT hirotakanakashima cilostazolforthepreventionofpneumoniaasystematicreview
AT kazuhisawatanabe cilostazolforthepreventionofpneumoniaasystematicreview
AT hiroyukiumegaki cilostazolforthepreventionofpneumoniaasystematicreview
AT yusukesuzuki cilostazolforthepreventionofpneumoniaasystematicreview
AT masafumikuzuya cilostazolforthepreventionofpneumoniaasystematicreview