# Pediatric cardiac surgery in Argentina > Live situation record from CLSTR: https://clstr.news/situations/pediatric-cardiac-surgery-in-argentina > Updated: 2026-09-27T06:39:14.000Z. Sources: 8. Developments: 3. Medical specialists in Bariloche, Argentina, successfully performed a complex heart surgery on a 32-day-old premature infant weighing 1,331 grams. The procedure was conducted at the Hospital Zonal y Neonatología (also referred to as Hospital Zonal Ramón Carrillo) to close a patent ductus arteriosus after pharmacological treatments failed. To mitigate the risks associated with transporting the infant to a different facility, a pediatric cardiovascular surgery team traveled to Bariloche to perform the intervention locally. The hospital’s Level 3P Neonatology unit provided the necessary infrastructure, allowing local and external surgical teams to collaborate. The surgery was successful, and the patient remains under specialized care. ## Timeline ### 2026-09-27: Hospital Zonal Ramón Carrillo performs complex surgery on premature infant The Hospital Zonal Ramón Carrillo in Bariloche successfully performed a complex cardiovascular surgery on a 1.331 kg premature newborn, avoiding a risky medical transfer. 3 sources. https://clstr.news/cluster/hospital-zonal-ramn-carrillo-performs-complex-surgery-on-premature-infant ### 2026-09-25: Bariloche hospital performs complex heart surgery on premature infant A pediatric surgical team successfully operated on a 1,331-gram premature infant in Bariloche, Argentina, to treat a complex heart condition without requiring a risky medical transfer. 3 sources. https://clstr.news/cluster/bariloche-hospital-performs-complex-heart-surgery-on-premature-infant ### 2026-09-08: Argentina infant to undergo unprecedented heart surgery A seven-month-old Argentine infant, Emma, will undergo a pioneering open-heart surgery at Hospital Garrahan to treat severe dilated cardiomyopathy. 2 sources. https://clstr.news/cluster/argentina-infant-to-undergo-unprecedented-heart-surgery --- Cite as: Pediatric cardiac surgery in Argentina. CLSTR, https://clstr.news/situations/pediatric-cardiac-surgery-in-argentina