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A study conducted at the Children's Hospital of Chongqing Medical University in China explored the relationship between non-compaction of the ventricular myocardium (NVM) and large patent ductus arteriosus (PDA) in children. The research found that after interventional occlusion of PDA, the N/C ratio of all children significantly improved, and the NVM regressed over time without typical complications. The study concluded that hemodynamic changes and a decrease in left heart preload may lead to the complete regression of NVM after primary factors are addressed. [Extracted from the article]