Publishing Trends in International Humanitarian Cleft Lip and Palate Care: A Systematic Review.

Background: Humanitarian outreach delivers essential cleft lip and palate (CLP) care in low- and middle-income countries. Objective: To review the literature regarding humanitarian CLP care and determine if a shift toward more sustainable care delivery is observed. Methods: A systematic review was performed on articles describing CLP repair in humanitarian settings from 1985 to 2020. Publications were categorized into trip reports, outcomes, teaching, and public health. Articles were stratified into three 12-year intervals (T1-T3) for analysis. Results: A total of 246 publications were included. Average annual publications increased 15.4-fold from T1 to T3 ( p  < 0.001). Among publications focused on delivering CLP-related care, descriptive trip report articles trended downward (58% in T1 vs. 42% in T3), whereas outcome-focused publications trended upward (42% in T1 vs. 58% T3). Public health research represented the greatest percentage of publications in T3 (50%). There were 22 teaching-related publications in T3 and only one in prior years. Conclusion: Research trends demonstrate a shift away from focusing solely on the number of surgical cases completed and toward more sustainable models of care delivery that address barriers to receiving longitudinal care.