Surgery and the first 8000 days of life: a review

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Abstract The first 8000 days of life, from birth to adulthood, encompasses critical phases that shape a child's health and development. While global health efforts have focused on the first 1000 days, the next 7000 days (ages 2–21) are equally vital, especially concerning the unmet burden of surgical conditions in low- and middle-income countries (LMICs). Approximately 1.7 billion children globally lack access to essential surgical care, with LMICs accounting for 85% of these unmet needs. Common surgical conditions, including congenital anomalies, injuries, infections, and pediatric cancers, often go untreated, contributing to significant mortality and disability. Despite the substantial need, LMICs face severe workforce and infrastructure shortages, with most pediatric surgical conditions requiring specialized skills, equipment, and tailored healthcare systems. Economic analyses have shown that pediatric surgical interventions are cost-effective, with substantial societal benefits. Expanding surgical care for children in LMICs demands investments in workforce training, infrastructure, and health systems integration, complemented by innovative funding and equitable global partnerships. Prioritizing surgical care within national health policies and scaling up children's surgery through initiatives like the Optimal Resources for Children's Surgical Care can improve health outcomes, align with Sustainable Development Goals, and foster equity in global health. Addressing the surgical care gap in LMICs will reduce preventable mortality, enhance quality of life, and drive sustainable growth, emphasizing surgery as an essential component of universal health coverage for children.