Between 2018 and 2024, the "Love Heart Journey" initiative, spearheaded by China's Fuwai Hospital, fostered collaboration with Cambodia, Myanmar, and Laos through MOUs facilitated by Fuwai Yunnan Hospital. This effort led to the screening of 85,403 children for health issues across the three nations. In a significant humanitarian gesture, 128 children diagnosed with congenital heart disease were given the opportunity for complimentary treatment in China -- 91 from Cambodia, 25 from Myanmar, and 12 from Laos. The program also included professional development, training 12 medical staff from these countries in China. The project has been lauded by the governments and citizens of the involved countries, setting a benchmark for healthcare diplomacy and fostering goodwill in the Lancang-Mekong region.