The severe presentation and poor outcomes of rheumatic heart disease in Namibia: Lessons from the REMEDY study

Background. This paper reports the baseline characteristics and outcomes of 266 Namibian patients in the Global Registry of Rheumatic Heart Disease. Objective. To describe clinical findings and outcomes in a cohort of children and adults with rheumatic heart disease in Namibia. Methods. Prospective...

Full description

Bibliographic Details
Main Authors: T Auala, L Zühlke, L Sikwaya, H du Toit, G Karthikeyan, K Teo, S Yusuf, M E Engels, B M Mayosi, C T Hugo-Hamman
Format: Article
Language:English
Published: South African Medical Association 2023-04-01
Series:South African Medical Journal
Subjects:
Online Access:https://samajournals.co.za/index.php/samj/article/view/970
_version_ 1797368198862995456
author T Auala
L Zühlke
L Sikwaya
H du Toit
G Karthikeyan
K Teo
S Yusuf
M E Engels
B M Mayosi
C T Hugo-Hamman
author_facet T Auala
L Zühlke
L Sikwaya
H du Toit
G Karthikeyan
K Teo
S Yusuf
M E Engels
B M Mayosi
C T Hugo-Hamman
author_sort T Auala
collection DOAJ
description Background. This paper reports the baseline characteristics and outcomes of 266 Namibian patients in the Global Registry of Rheumatic Heart Disease. Objective. To describe clinical findings and outcomes in a cohort of children and adults with rheumatic heart disease in Namibia. Methods. Prospective study of all patients with rheumatic heart disease at Windhoek Central Hospital between January 2010 and November 2012. Results. A total of 266 patients were enrolled; median age was 22 years, 72.6% were <30 years old and 60.5% female. The majority (62.8%) had moderate-severe disease; 48.9% were in congestive cardiac failure. Secondary antibiotic prophylaxis was used by 34.2%. Warfarin was used by 75.3% (n=64/85) with clinical indications. Forty-seven (17.6%) had previous valve interventions, of whom 40 (15.0%) had mechanical valve replacements. Over a 2-year follow-up period 19.1% of patients died. Severe valve involvement at enrolment was independently associated with mortality (24.6% v. 5.1% in those without severe disease; hazard ratio 4.9; 95% confidence interval 1.50 - 15.98). Sixty-five (29.8%) of the 218 without previous intervention had valvular intervention after enrolment. Conclusions. In Namibia rheumatic heart disease affects young people who present with severe disease and have a high case fatality rate. Rates of secondary prevention were low. These findings have informed the National Programme for Prevention and Control of Rheumatic Heart Disease in Namibia.
first_indexed 2024-03-08T17:29:12Z
format Article
id doaj.art-e17808c7fe0d4d0d9af1ff7100fad72c
institution Directory Open Access Journal
issn 0256-9574
2078-5135
language English
last_indexed 2024-03-08T17:29:12Z
publishDate 2023-04-01
publisher South African Medical Association
record_format Article
series South African Medical Journal
spelling doaj.art-e17808c7fe0d4d0d9af1ff7100fad72c2024-01-02T17:26:50ZengSouth African Medical AssociationSouth African Medical Journal0256-95742078-51352023-04-01134b10.7196/SAMJ.2022.v113i3b.16831The severe presentation and poor outcomes of rheumatic heart disease in Namibia: Lessons from the REMEDY studyT Auala0L Zühlke1L Sikwaya2H du Toit3G Karthikeyan4K Teo5S Yusuf6M E Engels7B M Mayosi8C T Hugo-Hamman9Cardiac Unit, Windhoek Central Hospital, Ministry of Health and Social Services, Namibia; Department of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South AfricaDivision of Paediatric Cardiology, Department of Paediatrics and Child Health, Red Cross War Memorial Children’s Hospital and University of Cape Town, Cape Town, South Africa; Department of Cardiology, All India Institute of Medical Sciences, New Delhi, IndiaCardiac Unit, Windhoek Central Hospital, Ministry of Health and Social Services, NamibiaCardiac Unit, Windhoek Central Hospital, Ministry of Health and Social Services, NamibiaDepartment of Cardiology, All India Institute of Medical Sciences, New Delhi, IndiaPopulation Health Research Institute, Hamilton Health Sciences and McMaster University, Hamilton, ON, CanadaPopulation Health Research Institute, Hamilton Health Sciences and McMaster University, Hamilton, ON, CanadaDepartment of Medicine, Groote Schuur Hospital and University of Cape Town, Cape Town, South AfricaThe Deanery, Faculty of Health Sciences, University of Cape Town, Cape Town, South AfricaCardiac Unit, Windhoek Central Hospital, Ministry of Health and Social Services, Namibia; Division of Paediatric Cardiology, Department of Paediatrics and Child Health, Red Cross War Memorial Children’s Hospital and University of Cape Town, Cape Town, South Africa Background. This paper reports the baseline characteristics and outcomes of 266 Namibian patients in the Global Registry of Rheumatic Heart Disease. Objective. To describe clinical findings and outcomes in a cohort of children and adults with rheumatic heart disease in Namibia. Methods. Prospective study of all patients with rheumatic heart disease at Windhoek Central Hospital between January 2010 and November 2012. Results. A total of 266 patients were enrolled; median age was 22 years, 72.6% were <30 years old and 60.5% female. The majority (62.8%) had moderate-severe disease; 48.9% were in congestive cardiac failure. Secondary antibiotic prophylaxis was used by 34.2%. Warfarin was used by 75.3% (n=64/85) with clinical indications. Forty-seven (17.6%) had previous valve interventions, of whom 40 (15.0%) had mechanical valve replacements. Over a 2-year follow-up period 19.1% of patients died. Severe valve involvement at enrolment was independently associated with mortality (24.6% v. 5.1% in those without severe disease; hazard ratio 4.9; 95% confidence interval 1.50 - 15.98). Sixty-five (29.8%) of the 218 without previous intervention had valvular intervention after enrolment. Conclusions. In Namibia rheumatic heart disease affects young people who present with severe disease and have a high case fatality rate. Rates of secondary prevention were low. These findings have informed the National Programme for Prevention and Control of Rheumatic Heart Disease in Namibia. https://samajournals.co.za/index.php/samj/article/view/970Rheumatic Diseases
spellingShingle T Auala
L Zühlke
L Sikwaya
H du Toit
G Karthikeyan
K Teo
S Yusuf
M E Engels
B M Mayosi
C T Hugo-Hamman
The severe presentation and poor outcomes of rheumatic heart disease in Namibia: Lessons from the REMEDY study
South African Medical Journal
Rheumatic Diseases
title The severe presentation and poor outcomes of rheumatic heart disease in Namibia: Lessons from the REMEDY study
title_full The severe presentation and poor outcomes of rheumatic heart disease in Namibia: Lessons from the REMEDY study
title_fullStr The severe presentation and poor outcomes of rheumatic heart disease in Namibia: Lessons from the REMEDY study
title_full_unstemmed The severe presentation and poor outcomes of rheumatic heart disease in Namibia: Lessons from the REMEDY study
title_short The severe presentation and poor outcomes of rheumatic heart disease in Namibia: Lessons from the REMEDY study
title_sort severe presentation and poor outcomes of rheumatic heart disease in namibia lessons from the remedy study
topic Rheumatic Diseases
url https://samajournals.co.za/index.php/samj/article/view/970
work_keys_str_mv AT tauala theseverepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT lzuhlke theseverepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT lsikwaya theseverepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT hdutoit theseverepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT gkarthikeyan theseverepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT kteo theseverepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT syusuf theseverepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT meengels theseverepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT bmmayosi theseverepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT cthugohamman theseverepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT tauala severepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT lzuhlke severepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT lsikwaya severepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT hdutoit severepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT gkarthikeyan severepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT kteo severepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT syusuf severepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT meengels severepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT bmmayosi severepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy
AT cthugohamman severepresentationandpooroutcomesofrheumaticheartdiseaseinnamibialessonsfromtheremedystudy