PMID- 36684337 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230201 IS - 2296-875X (Print) IS - 2296-875X (Electronic) IS - 2296-875X (Linking) VI - 9 DP - 2022 TI - Case Report: Using Medtronic AP360 mechanical prosthesis in mitral valve replacement for patients with mitral insufficiency after primum atrial septal defect repair to reduce left ventricular outflow tract obstruction risk. PG - 1008444 LID - 10.3389/fsurg.2022.1008444 [doi] LID - 1008444 AB - BACKGROUND: Atrial septal defect is one of the most common congenital heart diseases in adults. Primum atrial septal defect (PASD) accounts for 4%-5% of congenital heart defects. Patients with PASD frequently suffer mitral insufficiency (MI), and thus, mitral valvuloplasty (MVP) or mitral valve replacement (MVR) is often required at the time of PASD repair. Unfortunately, recurrent unrepairable severe mitral regurgitation can develop in many patients undergoing PASD repair plus MVP in either short- or long-term after the repair surgery, requiring a re-do MVR. In those patients, the risk of left ventricular outflow tract obstruction (LVOTO) has increased. CASE PRESENTATION: We present five such cases, ranging in age from 24 to 47 years, who had a PASD repair plus MVP or MVR for 14-40 years while suffering moderate to severe mitral regurgitation. Using Medtronic AP360 mechanical mitral prostheses, only one patient experienced mild LVOTO. CONCLUSIONS: The use of Medtronic AP360 mechanical mitral prostheses to perform MVR in patients with MI who had a history of PASD repair can potentially reduce the risk of LVOTO. Long-term follow-up is required to further confirm this clinical benefit associated with AP360 implantation in patients with PASD. CI - (c) 2023 Guo, Yang, Han, Zhao, Chen, Zheng and Ni. FAU - Guo, Lei AU - Guo L AD - Department of Cardiovascular Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China. FAU - Yang, Qiqi AU - Yang Q AD - Department of Cardiovascular Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China. FAU - Han, Yu AU - Han Y AD - Department of Cardiovascular Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China. FAU - Zhao, Haige AU - Zhao H AD - Department of Cardiovascular Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China. FAU - Chen, Liangwei AU - Chen L AD - Department of Cardiovascular Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China. FAU - Zheng, Junnan AU - Zheng J AD - Department of Cardiovascular Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China. FAU - Ni, Yiming AU - Ni Y AD - Department of Cardiovascular Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China. LA - eng PT - Case Reports DEP - 20230106 PL - Switzerland TA - Front Surg JT - Frontiers in surgery JID - 101645127 PMC - PMC9852323 OTO - NOTNLM OT - LVOTO OT - MVR OT - PASD repair OT - case report OT - congenital heart disease COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/01/24 06:00 MHDA- 2023/01/24 06:01 PMCR- 2023/01/06 CRDT- 2023/01/23 04:22 PHST- 2022/07/31 00:00 [received] PHST- 2022/10/17 00:00 [accepted] PHST- 2023/01/23 04:22 [entrez] PHST- 2023/01/24 06:00 [pubmed] PHST- 2023/01/24 06:01 [medline] PHST- 2023/01/06 00:00 [pmc-release] AID - 10.3389/fsurg.2022.1008444 [doi] PST - epublish SO - Front Surg. 2023 Jan 6;9:1008444. doi: 10.3389/fsurg.2022.1008444. eCollection 2022.