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Meta-Analysis
. 2017 Mar 14;3(3):CD001876.
doi: 10.1002/14651858.CD001876.pub3.

Corticosteroids for tuberculous pleurisy

Affiliations
Meta-Analysis

Corticosteroids for tuberculous pleurisy

Hannah Ryan et al. Cochrane Database Syst Rev. .

Abstract

Background: Corticosteroids used in addition to antituberculous therapy have been reported to benefit people with tuberculous pleurisy. However, research findings are inconsistent and raise doubt as to whether such treatment is worthwhile. There is also concern regarding the potential adverse effects of corticosteroids, especially in HIV-positive people.

Objectives: To evaluate the effects of adding corticosteroids to drug regimens for tuberculous pleural effusion.

Search methods: In April 2016, we searched the Cochrane Infectious Diseases Group Specialized Register, CENTRAL (the Cochrane Library), MEDLINE, Embase, LILACS, Current Controlled Trials, and the reference lists of articles identified by the literature search.

Selection criteria: Randomized controlled trials (RCTs) and quasi-RCTs that compared any corticosteroid with no treatment, placebo, or other active treatment (both groups should have received the same antituberculous drug regimen) in people diagnosed with tuberculous pleurisy.

Data collection and analysis: Two review authors independently screened the search results, extracted data from the included trials, and assessed trial methodological quality using the Cochrane 'Risk of bias' tool. We analysed the data using risk ratios (RR) with 95% confidence intervals (CIs). We applied the fixed-effect model in the absence of statistically significant heterogeneity.

Main results: Six trials with 590 participants met the inclusion criteria, which were conducted in Asia (three trials), Africa (two trials), and Europe (one trial). Two trials were in HIV-negative people, one trial was in HIV-positive people, and three trials did not report HIV status.Corticosteroids may reduce the time to resolution of pleural effusion. Risk of residual pleural effusion on chest X-ray was reduced by 45% at eight weeks (RR 0.54, 95% CI 0.37 to 0.78; 237 participants, 2 trials, low certainty evidence), and 65% at 24 weeks (RR 0.35, 95% CI 0.18 to 0.66; 237 participants, 2 trials, low certainty evidence).Compared with control, corticosteroids may reduce the risk of having pleural changes (such as pleural thickening or pleural adhesions), on chest X-ray at the end of follow-up by almost one third (RR 0.72, 95% CI 0.57 to 0.92; 393 participants, 5 trials,low certainty evidence), which translates to an absolute risk reduction of 16%.One trial reported deaths in people that were HIV-positive, with no obvious difference between the groups; the trial authors' analysis suggests that the deaths observed in this trial were related to HIV disease rather than pleural TB (RR 0.91, 95% CI 0.64 to 1.31; 197 participants, 1 trial).We found limited data on long-term functional respiratory impairment on 187 people in two trials, which reported that average percentage predicted forced vital capacity was similar in the group receiving prednisolone and in the control group (very low certainty evidence).The risk of adverse events that led to discontinuation of the trial drug was higher in people with pleural TB receiving corticosteroids (RR 2.78, 95% CI 1.11 to 6.94; 587 participants, 6 trials, low certainty evidence). The trial in HIV-positive people reported on six different HIV-related infections, with no obvious differences. However, cases of Kaposi's sarcoma were only seen in the corticosteroid group (with 6/99 cases in the steroid group compared to 0/98 in the control group) (very low certainty evidence).

Authors' conclusions: Long-term respiratory function is potentially the most important outcome for assessing the effects of adjunctive treatments for people with pleural TB. However, the information on the impact of pleural TB on long-term respiratory function is unknown and could be eclipsed by other risk factors, such as concurrent pulmonary TB, smoking, and HIV. This probably needs to be quantified to help decide whether further trials of corticosteroids for pleural TB would be worthwhile.

PubMed Disclaimer

Conflict of interest statement

HR was employed by the Cochrane Infectious Diseases Group, which is funded by a grant from the UK Government DFID.

PD is employed by the National Institute for Research in Tuberculosis, Chennai, a permanent institute under the Indian Council of Medical Research, which is funded by the Government of India through the Ministry of Health and Family Welfare.

HR and PD conducted the preliminary work that contributed to the conception and design of this Cochrane Review as part of the evidence review process for the Indian Extra‐Pulmonary TB (INDEX‐TB) Guidelines, a guideline for extrapulmonary TB commissioned by the Ministry of Health and Family Welfare, Government of India. Global Health Advocates funded this guideline, and the All India Institute of Medical Sciences, New Delhi convened it.

Figures

1
1
Study flow diagram.
2
2
'Risk of bias' graph: review authors' judgements about each 'Risk of bias' item presented as percentages across all included trials.
3
3
'Risk of bias' summary: review authors' judgements about each 'Risk of bias' item for each included trial.
1.1
1.1. Analysis
Comparison 1 Corticosteroids versus control (placebo or no steroids), Outcome 1 Residual pleural effusion on chest X‐ray.
1.2
1.2. Analysis
Comparison 1 Corticosteroids versus control (placebo or no steroids), Outcome 2 Pleural changes at the end of treatment (pleural thickening and pleural adhesions).
1.3
1.3. Analysis
Comparison 1 Corticosteroids versus control (placebo or no steroids), Outcome 3 Death from any cause.
1.4
1.4. Analysis
Comparison 1 Corticosteroids versus control (placebo or no steroids), Outcome 4 Adverse events leading to study drug discontinuation.
1.5
1.5. Analysis
Comparison 1 Corticosteroids versus control (placebo or no steroids), Outcome 5 HIV‐associated adverse events.
2.1
2.1. Analysis
Comparison 2 Effect of study quality on the outcome residual pleural fluid on chest X‐ray, Outcome 1 Residual pleural fluid on chest X‐ray ‐ studies at high risk of selection bias excluded.
2.2
2.2. Analysis
Comparison 2 Effect of study quality on the outcome residual pleural fluid on chest X‐ray, Outcome 2 Residual pleural fluid on chest X‐ray ‐ studies at high risk of selection bias included.

Update of

References

References to studies included in this review

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ChiCTR‐TRC‐10000747 {published data only}
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References to other published versions of this review

Engel 2007
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