Journal Article
Review
Systematic Review
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Medical Therapies for Adult Chronic Sinusitis: A Systematic Review.

JAMA 2015 September 2
IMPORTANCE: Chronic sinusitis is a common inflammatory condition defined by persistent symptomatic inflammation of the sinonasal cavities lasting longer than 3 months. It accounts for 1% to 2% of total physician encounters and is associated with large health care expenditures. Appropriate use of medical therapies for chronic sinusitis is necessary to optimize patient quality of life (QOL) and daily functioning and minimize the risk of acute inflammatory exacerbations.

OBJECTIVE: To summarize the highest-quality evidence on medical therapies for adult chronic sinusitis and provide an evidence-based approach to assist in optimizing patient care.

EVIDENCE REVIEW: A systematic review searched Ovid MEDLINE (1947-January 30, 2015), EMBASE, and Cochrane Databases. The search was limited to randomized clinical trials (RCTs), systematic reviews, and meta-analyses. Evidence was categorized into maintenance and intermittent or rescue therapies and reported based on the presence or absence of nasal polyps.

FINDINGS: Twenty-nine studies met inclusion criteria: 12 meta-analyses (>60 RCTs), 13 systematic reviews, and 4 RCTs that were not included in any of the meta-analyses. Saline irrigation improved symptom scores compared with no treatment (standardized mean difference [SMD], 1.42 [95% CI, 1.01 to 1.84]; a positive SMD indicates improvement). Topical corticosteroid therapy improved overall symptom scores (SMD, -0.46 [95% CI, -0.65 to -0.27]; a negative SMD indicates improvement), improved polyp scores (SMD, -0.73 [95% CI, -1.0 to -0.46]; a negative SMD indicates improvement), and reduced polyp recurrence after surgery (relative risk, 0.59 [95% CI, 0.45 to 0.79]). Systemic corticosteroids and oral doxycycline (both for 3 weeks) reduced polyp size compared with placebo for 3 months after treatment (P < .001). Leukotriene antagonists improved nasal symptoms compared with placebo in patients with nasal polyps (P < .01). Macrolide antibiotic for 3 months was associated with improved QOL at a single time point (24 weeks after therapy) compared with placebo for patients without polyps (SMD, -0.43 [95% CI, -0.82 to -0.05]).

CONCLUSIONS AND RELEVANCE: Evidence supports daily high-volume saline irrigation with topical corticosteroid therapy as a first-line therapy for chronic sinusitis. A short course of systemic corticosteroids (1-3 weeks), short course of doxycycline (3 weeks), or a leukotriene antagonist may be considered in patients with nasal polyps. A prolonged course (3 months) of macrolide antibiotic may be considered for patients without polyps.

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