Outcomes post Ozaki procedure among children with aortic valve disease at Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania: a retrospective descriptive study

Abstract Background Aortic valve reconstruction using glutaraldehyde-treated autologous pericardium, also called Ozaki procedure, is a surgical procedure for patients with aortic valve disease. Gratifying results have been reported in adult patients, however, limited published data is available in p...

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Main Authors: Zawadi Edward Kalezi, Alphonce Nsabi Simbila, Stella Mongella, Deogratias Nkya, Godwin Sharau, Felix Shonyela, Vivienne Mlawi, Naizihijwa Majani
Format: Article
Language:English
Published: BMC 2024-03-01
Series:BMC Cardiovascular Disorders
Subjects:
Online Access:https://doi.org/10.1186/s12872-024-03829-8
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author Zawadi Edward Kalezi
Alphonce Nsabi Simbila
Stella Mongella
Deogratias Nkya
Godwin Sharau
Felix Shonyela
Vivienne Mlawi
Naizihijwa Majani
author_facet Zawadi Edward Kalezi
Alphonce Nsabi Simbila
Stella Mongella
Deogratias Nkya
Godwin Sharau
Felix Shonyela
Vivienne Mlawi
Naizihijwa Majani
author_sort Zawadi Edward Kalezi
collection DOAJ
description Abstract Background Aortic valve reconstruction using glutaraldehyde-treated autologous pericardium, also called Ozaki procedure, is a surgical procedure for patients with aortic valve disease. Gratifying results have been reported in adult patients, however, limited published data is available in paediatric population. This study looked at clinical characteristics and early outcomes of children who underwent Ozaki procedure at our Institute. Methods This was a retrospective descriptive study conducted on children who underwent aortic valve reconstruction at Jakaya Kikwete Cardiac Institute (JKCI) from January 2019 through December 2022. Medical records of these children were reviewed to extract data on demographics, clinical characteristics, redo surgical interventions and survival. Results A total of 10 children underwent Ozaki procedure during the study period. Eight children had severe aortic regurgitation while 2 had severe aortic stenosis preoperatively. All children had either none or trivial aortic regurgitation immediately after surgery. None of them had redone operations throughout the follow-up period. There was no in-hospital mortality, however, one child died one-year after surgery. The mean follow-up period was 1.6 years with the longest follow-up time of 4 years. Conclusion Ozaki procedure showed encouraging early results among children with aortic valve disease who underwent surgical repair by this technique. Future studies with larger sample sizes and longer follow up periods to evaluate long-term results in this population are recommended.
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spelling doaj.art-fb1ded6adb29487b922a407a47b886aa2024-03-24T12:10:02ZengBMCBMC Cardiovascular Disorders1471-22612024-03-012411510.1186/s12872-024-03829-8Outcomes post Ozaki procedure among children with aortic valve disease at Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania: a retrospective descriptive studyZawadi Edward Kalezi0Alphonce Nsabi Simbila1Stella Mongella2Deogratias Nkya3Godwin Sharau4Felix Shonyela5Vivienne Mlawi6Naizihijwa Majani7Department of Paediatric cardiology, Jakaya Kikwete Cardiac InstituteEmergency Medicine Department, Muhimbili University of Health and Allied SciencesDepartment of Paediatric cardiology, Jakaya Kikwete Cardiac InstituteDepartment of Paediatrics and Child Health, Muhimbili University of Health and Allied SciencesDepartment of Paediatric cardiology, Jakaya Kikwete Cardiac InstituteDepartment of Paediatric cardiology, Jakaya Kikwete Cardiac InstituteDepartment of Paediatric cardiology, Jakaya Kikwete Cardiac InstituteDepartment of Paediatric cardiology, Jakaya Kikwete Cardiac InstituteAbstract Background Aortic valve reconstruction using glutaraldehyde-treated autologous pericardium, also called Ozaki procedure, is a surgical procedure for patients with aortic valve disease. Gratifying results have been reported in adult patients, however, limited published data is available in paediatric population. This study looked at clinical characteristics and early outcomes of children who underwent Ozaki procedure at our Institute. Methods This was a retrospective descriptive study conducted on children who underwent aortic valve reconstruction at Jakaya Kikwete Cardiac Institute (JKCI) from January 2019 through December 2022. Medical records of these children were reviewed to extract data on demographics, clinical characteristics, redo surgical interventions and survival. Results A total of 10 children underwent Ozaki procedure during the study period. Eight children had severe aortic regurgitation while 2 had severe aortic stenosis preoperatively. All children had either none or trivial aortic regurgitation immediately after surgery. None of them had redone operations throughout the follow-up period. There was no in-hospital mortality, however, one child died one-year after surgery. The mean follow-up period was 1.6 years with the longest follow-up time of 4 years. Conclusion Ozaki procedure showed encouraging early results among children with aortic valve disease who underwent surgical repair by this technique. Future studies with larger sample sizes and longer follow up periods to evaluate long-term results in this population are recommended.https://doi.org/10.1186/s12872-024-03829-8Ozaki procedureAortic valvePaediatricsTanzania
spellingShingle Zawadi Edward Kalezi
Alphonce Nsabi Simbila
Stella Mongella
Deogratias Nkya
Godwin Sharau
Felix Shonyela
Vivienne Mlawi
Naizihijwa Majani
Outcomes post Ozaki procedure among children with aortic valve disease at Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania: a retrospective descriptive study
BMC Cardiovascular Disorders
Ozaki procedure
Aortic valve
Paediatrics
Tanzania
title Outcomes post Ozaki procedure among children with aortic valve disease at Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania: a retrospective descriptive study
title_full Outcomes post Ozaki procedure among children with aortic valve disease at Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania: a retrospective descriptive study
title_fullStr Outcomes post Ozaki procedure among children with aortic valve disease at Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania: a retrospective descriptive study
title_full_unstemmed Outcomes post Ozaki procedure among children with aortic valve disease at Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania: a retrospective descriptive study
title_short Outcomes post Ozaki procedure among children with aortic valve disease at Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania: a retrospective descriptive study
title_sort outcomes post ozaki procedure among children with aortic valve disease at jakaya kikwete cardiac institute dar es salaam tanzania a retrospective descriptive study
topic Ozaki procedure
Aortic valve
Paediatrics
Tanzania
url https://doi.org/10.1186/s12872-024-03829-8
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