25 June 2003
Med Sci Monit 2003; 9(6): RA126-133 :: ID: 12902
Accessory mitral valve tissue (AcMVT) is a rare congenital malformation causing left ventricular outflow tract obstruction (LVOTO). The analysis of various published reports reveals 90 patients presenting with AcMVT, ranging in age from newborns to 77 years old. Severe LVOTO is present in most cases, though mild LVOTO was found in 15 patients (16.7%), and 3 other patients (3.3%) presented with no LVOTO. In our practice, we found this anomaly in 5 patients; one presenting with severe LVOTO, two with mild LVOTO, and another who developed moderate LVOTO after a myocardial infarction episode. 68 patients (75.5%) underwent cardiac surgery, with a postoperative mortality of 6 (8.9%). Postoperatively, a residual mild gradient across the left ventricular outflow tract was identified in 9 patients (13.2%). Nine other patients (13.2%) required reoperation due to severe LVOTO. Mild-to-moderate postoperative mitral or aortic valve regurgitation was found in 7 (10.3%) and 5 (7.3%) patients, respectively. Based on reported intraoperative findings, we have classified this anomaly as Type I-FIXED TYPE (A – nodular, B – Membranous), Type II-Mobile type (A – Pedunculated, B – leaflet-like). Type IIB is divided into 1) rudimentary chordae and 2) developed chordae. Based in our own experience and after the analysis of various reports, we conclude that patients with AcMVT causing LVOTO may undergo safe mass excision with acceptable postoperative mortality and morbidity. The removal of the AcMVT should in no way compromise mitral valve function, and its excision should be made subject to careful evaluation of the surrounding structures.
Keywords: Adolescent, Cardiac Surgical Procedures - methods, Child, Preschool, Echocardiography, Transesophageal, Infant, Newborn, Mitral Valve - pathology, Mitral Valve Insufficiency - surgery, Mitral Valve Insufficiency - ultrasonography
01 January 2022 : EditorialEditorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Patients
Med Sci Monit 2022; 28:e935952
11 January 2022 : Clinical ResearchA Remote Questionnaire-Based Study to Compare Alcohol Use in 1030 Final-Year High School Students in Split-...
Med Sci Monit In Press; DOI: 10.12659/MSM.935567
08 November 2021 : Database AnalysisVirtual Screening and Molecular Docking to Study the Mechanism of Chinese Medicines in the Treatment of Cor...
Med Sci Monit In Press; DOI: 10.12659/MSM.934102
31 December 2021 : Clinical ResearchA Prospective Observational Study of 42 Patients with COVID-19 infection and a History of Hepatitis C Virus...
Med Sci Monit 2021; 27:e935075
19 Jan 2022 : Clinical ResearchA Retrospective Study to Compare the Effects of Methylprednisolone and Dexamethasone in 35 Patients with An...
Med Sci Monit In Press; DOI: 10.12659/MSM.934703
17 Jan 2022 : Clinical ResearchUnveiling the Differences in Biological Properties of Dental Pulp Stem Cells from Normal and Inflamed Pulp:...
Med Sci Monit In Press; DOI: 10.12659/MSM.934511
14 Jan 2022 : Database AnalysisIdentification of Key Genes Associated with Brain Metastasis from Breast Cancer: A Bioinformatics Analysis
Med Sci Monit In Press; DOI: 10.12659/MSM.935071
Most Viewed Current Articles
30 Dec 2021 : Clinical ResearchRetrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...
Med Sci Monit 2021; 27:e935379
01 Nov 2020 : Review articleLong-Term Respiratory and Neurological Sequelae of COVID-19
Med Sci Monit 2020; 26:e928996
05 Mar 2020 : Clinical ResearchThe Effects of Social Support on Sleep Quality of Medical Staff Treating Patients with Coronavirus Disease ...
Med Sci Monit 2020; 26:e923549