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Di Virgilio E, Basile P, Carella MC, Monitillo F, Santoro D, Latorre MD, D’Alessandro S, Fusini L, Fazzari F, Pontone G, Guaricci AI. The Postoperative Paradoxical Septum (POPS): A Comprehensive Review on Physio-Pathological Mechanisms. J Clin Med 2024; 13:2309. [PMID: 38673582 PMCID: PMC11050797 DOI: 10.3390/jcm13082309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/13/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
The interventricular septum (IVS) is a core myocardial structure involved in biventricular coupling and performance. Physiologically, during systole, it moves symmetrically toward the center of the left ventricle (LV) and opposite during diastole. Several pathological conditions produce a reversal or paradoxical septal motion, such as after uncomplicated cardiac surgery (CS). The postoperative paradoxical septum (POPS) was observed in a high rate of cases, representing a unicum in the panorama of paradoxical septa as it does not induce significant ventricular morpho-functional alterations nor negative clinical impact. Although it was previously considered a postoperative event, evidence suggests that it might also appear during surgery and gradually resolve over time. The mechanism behind this phenomenon is still debated. In this article, we will provide a comprehensive review of the various theories generated over the past fifty years to explain its pathological basis. Finally, we will attempt to give a heuristic interpretation of the biventricular postoperative motion pattern based on the switch of the ventricular anchor points.
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Affiliation(s)
| | - Paolo Basile
- University Cardiology Unit, Interdisciplinary Department of Medicine, “Aldo Moro” University School of Medicine, AOUC Polyclinic, 70121 Bari, Italy; (P.B.); (M.C.C.); (F.M.); (D.S.); (M.D.L.)
| | - Maria Cristina Carella
- University Cardiology Unit, Interdisciplinary Department of Medicine, “Aldo Moro” University School of Medicine, AOUC Polyclinic, 70121 Bari, Italy; (P.B.); (M.C.C.); (F.M.); (D.S.); (M.D.L.)
| | - Francesco Monitillo
- University Cardiology Unit, Interdisciplinary Department of Medicine, “Aldo Moro” University School of Medicine, AOUC Polyclinic, 70121 Bari, Italy; (P.B.); (M.C.C.); (F.M.); (D.S.); (M.D.L.)
| | - Daniela Santoro
- University Cardiology Unit, Interdisciplinary Department of Medicine, “Aldo Moro” University School of Medicine, AOUC Polyclinic, 70121 Bari, Italy; (P.B.); (M.C.C.); (F.M.); (D.S.); (M.D.L.)
| | - Michele Davide Latorre
- University Cardiology Unit, Interdisciplinary Department of Medicine, “Aldo Moro” University School of Medicine, AOUC Polyclinic, 70121 Bari, Italy; (P.B.); (M.C.C.); (F.M.); (D.S.); (M.D.L.)
| | | | - Laura Fusini
- Department of Perioperative Cardiology and Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (L.F.); (F.F.); (G.P.)
| | - Fabio Fazzari
- Department of Perioperative Cardiology and Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (L.F.); (F.F.); (G.P.)
| | - Gianluca Pontone
- Department of Perioperative Cardiology and Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy; (L.F.); (F.F.); (G.P.)
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy
| | - Andrea Igoren Guaricci
- University Cardiology Unit, Interdisciplinary Department of Medicine, “Aldo Moro” University School of Medicine, AOUC Polyclinic, 70121 Bari, Italy; (P.B.); (M.C.C.); (F.M.); (D.S.); (M.D.L.)
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