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Humidity control for chronic asthma

  • Review
  • Intervention

Authors


Abstract

Background

Humidity control measures in the home environment of patients with asthma have been recommended, however there is no consensus about the usefulness of these measures.

Objectives

To study the effect of dehumidification of the home environment on asthma control.

Search methods

The clinical trials registers of the Cochrane Collaboration and Cochrane Airways Group were searched. Searches were current as of October 2007.

Selection criteria

Randomized controlled trials on the use of humidity control measures in the home environment of patients with asthma were evaluated for inclusion.

Data collection and analysis

Data were extracted using a pre-designed data extraction form. No data was available for entering into RevMan for analysis.

Main results

One trial was included. The trial compared mechanical ventilation with or without high efficiency vacuum cleaners and did not show any clinical benefit to asthma patients. There was a decline in the house dust mite count and the antigen level. This open trial had a low sample size.

Authors' conclusions

There is a need for studying the health benefits of dehumidification by a double blind randomized controlled trial with adequate sample size measuring clinical outcomes in patients of asthma.

摘要

背景

以濕度控制治療慢性氣喘

已有建議氣喘患者在家庭環境中執行濕度控制的措施,然而,對於這些措施的用處仍未有共識。

目標

研究家庭環境除濕對氣喘控制的效應。

搜尋策略

搜尋Cochrane Collaboration及Cochrane Airways Group的臨床試驗登錄,搜尋至2007年10月。

選擇標準

針對氣喘患者在家庭環境中使用濕度控制的措施的隨機對照試驗被評估是否適合納入。

資料收集與分析

利用預設之數據摘錄表格摘錄數據。沒有獲得數據輸入RevMan進行分析。

主要結論

納入一項試驗。此一試驗比較有或沒有配備高效能真空清淨器的機械式呼吸器,並未顯示對氣喘病人有任何臨床效益。家中塵蠓數及抗原濃度皆有減少。

作者結論

需要有足夠樣本數且測量氣喘病人臨床結果的雙盲隨機對照試驗來探討除濕對健康的效益。

翻譯人

本摘要由中國醫藥大學附設醫院陳祖裕翻譯。

此翻譯計畫由臺灣國家衛生研究院(National Health Research Institutes, Taiwan)統籌。

總結

沒有足夠證據顯示除濕器對慢性氣喘患者具有效益。氣喘病人在家庭環境中除濕對健康的效益已被研究。只有一項研究符合要求而被納入本回顧。沒有證據可用以支持氣喘病人在臨床上使用除濕。建議進行以探討氣喘病人臨床狀態及生活品質導向且樣本數及方法學均充分的隨機對照試驗。

Plain language summary

Humidity control for chronic asthma

The health benefits of dehumidification of the home environment of patients with asthma were studied. Only one study qualified to be included in the review. No evidence is available to support the use of dehumidification on the clinical status of asthma patients. A randomised controlled trial, of adequate sample size and methodology, is recommended which studies the clinical status and quality of life for patients with asthma.

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