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Clin Respir J. 2018 Mar;12(3):857-864. doi: 10.1111/crj.12646. Epub 2017 May 31.

Efficacy of zinc given as an adjunct to the treatment of severe pneumonia: A meta-analysis of randomized, double-blind and placebo-controlled trials.

Wang L1, Song Y1,2,3.

Author information

1
Department of Pulmonary Medicine, Shanghai Respiratory Research Institute, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
2
Shanghai Public Health Clinical Center, Shanghai, 201508, China.
3
Zhongshan Hospital, Qingpu Branch, Fudan University, Shanghai, 201700, China.

Abstract

BACKGROUND:

Pneumonia is a major cause of morbidity and mortality of children. Zinc is known to play a central role in the immune system. The deficiency of zinc increased susceptibility to infectious diseases.

OBJECTIVE:

To investigate the clinical efficacy of zinc given as an adjunct therapy to the treatment of severe pneumonia.

METHODS:

The PubMed, Embase, MEDLINETM and the Cochrane Central Register of Controlled Trials were searched to identify all randomized, double-blind and placebo-controlled (DBPC) trials which evaluated the clinical efficacy of zinc given as an adjunct in the treatment of severe pneumonia and published between January 1966 and October 2015.

RESULTS:

Six randomized DBPC trials including 2216 patients with severe pneumonia were eligible. The results suggested that zinc given as an adjunct therapy to the treatment of severe pneumonia had no significant improvement of treatment failure (RR = 0.97, P = .71) and change of antibiotic therapy (RR = 1.09, P = .52). We also found a favorable trend for clinical deterioration of severe pneumonia but with no statistical significance (RR = 0.88, P = .55). Zinc produced a significant reduction in mortality caused by severe pneumonia (RR = 0.43, P = .01).

CONCLUSIONS:

Zinc given as an adjunct to the treatment of severe pneumonia is effective in reducing the mortality of severe pneumonia, and has no significant effects on treatment failure and change of antibiotic therapy.

KEYWORDS:

mortality; severe pneumonia; treatment failure; zinc

PMID:
28488366
DOI:
10.1111/crj.12646
[Indexed for MEDLINE]

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