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The Medical Director of the Cardiac Center of Ethiopia was formally notified, and all patient data were anonymized to maintain confidentiality. Given the retrospective nature of the study, the ethics committee waived the requirement for informed consent. Data collection adhered to strict confidentiality protocols, and all information was used solely for research purposes. Full documentation of ethical approvals is maintained and available upon request from the corresponding author.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"377"}}