Publications by authors named "Godfrey L Kweka"

Background: Preliminary data suggests that the burden of acute coronary syndrome (ACS) is high in Tanzania. After efforts to improve ACS care, we sought to describe ACS diagnosis rates, care processes, and outcomes in a Tanzanian Emergency Department (ED).

Methods: Adults presenting to a northern Tanzanian ED with acute chest pain or shortness of breath were enrolled from November 2020 to January 2023.

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Background: Nonspecific electrocardiogram (ECG) findings are associated with increased morbidity and mortality in high-income settings. ECGs are increasingly available in emergency departments (EDs) in low- and middle-income countries (LMICs), however the prognostic value of nonspecific ECG findings in resource-limited settings, particularly in sub-Saharan Africa, remains unclear.

Objective: To assess the association between nonspecific ECG findings and 30-day mortality among patients presenting with chest pain and shortness of breath to a Tanzanian ED.

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Background: Chronic myocardial injury is a condition defined by stably elevated cardiac biomarkers without acute myocardial ischemia. Although studies from high-income countries have reported that chronic myocardial injury predicts adverse prognosis, there are no published data about the condition in sub-Saharan Africa.

Methods: Between November 2020 and January 2023, adult patients with chest pain or shortness of breath were recruited from an emergency department in Moshi, Tanzania.

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Introduction: Myocardial Infarction (MI) is a leading cause of death worldwide. In high income countries, quality improvement strategies have played an important role in increasing uptake of evidence-based MI care and improving MI outcomes. The incidence of MI in sub-Saharan Africa is rising, but uptake of evidence-based care in northern Tanzania is low.

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Background: Evidence-based care for acute myocardial infarction (AMI) reduces morbidity and mortality. Prior studies in Tanzania identified substantial gaps in the uptake of evidence-based AMI care. Implementation science has been used to improve uptake of evidence-based AMI care in high-income settings, but interventions to improve quality of AMI care have not been studied in sub-Saharan Africa.

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Background: Uptake of evidence-based care for acute myocardial infarction (AMI) is suboptimal in Tanzania, but there are currently no published interventions to improve AMI care in sub-Saharan Africa.

Objectives: Co-design a quality improvement intervention for AMI care tailored to local contextual factors.

Methods: An interdisciplinary design team consisting of 20 physicians, nurses, implementation scientists, and administrators met from June 2022 through August 2023.

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Objective: The HEART score successfully risk stratifies emergency department (ED) patients with chest pain in high-income settings. However, this tool has not been validated in low-income countries.

Methods: This is a secondary analysis of a prospective observational study that was conducted in a Tanzanian ED from January 2019 through January 2023.

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Introduction: People with HIV (PLWH) have an increased risk myocardial infarction (MI), and evidence suggests that MI is under-diagnosed in Tanzania. However, little is known about barriers to MI care among PLWH in the region.

Methods: In this qualitative study grounded in phenomenology, semi-structured interviews were conducted in northern Tanzania.

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Introduction: HIV confers increased risk of myocardial infarction (MI), but there has been little study of ischemic electrocardiogram (ECG) findings among people with HIV in sub-Saharan Africa.

Objectives: To compare the prevalence of ischemic ECG findings among Tanzanians with and without HIV and to identify correlates of ischemic ECG changes among Tanzanians with HIV.

Methods: Consecutive adults presenting for routine HIV care at a Tanzanian clinic were enrolled.

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Background: Little is known about long-term outcomes and uptake of secondary preventative therapies following acute myocardial infarction (AMI) in sub-Saharan Africa.

Methods: Consecutive patients presenting with AMI (as defined by the Fourth Universal Definition of AMI Criteria) to a northern Tanzanian referral hospital were enrolled in this prospective observational study. Follow-up surveys assessing mortality, medication use, and rehospitalization were administered at 3, 6, 9, and 12 months following initial presentation, by telephone or in person.

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Article Synopsis
  • HIV is linked to a higher risk of cardiovascular diseases, but there’s a lack of research on this issue in sub-Saharan Africa.
  • A study involving 500 Tanzanian adults receiving outpatient HIV care found that 34.6% had hypertension, with a high percentage being unaware of their condition.
  • The study identified older age and higher body mass index as significant predictors of uncontrolled hypertension, suggesting a need for better screening and treatment for hypertension, diabetes, and obesity in this population.
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Introduction: Data describing atrial fibrillation (AF) care in emergency centres (ECs) in sub-Saharan Africa is lacking. We sought to describe the prevalence and outcomes of AF in a Tanzanian EC.

Methods: In a prospective, observational study, adults presenting with chest pain or shortness of breath to a Tanzanian EC were enrolled from January through October 2019.

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Objectives: To describe knowledge, attitudes, and practices (KAP) regarding ischemic heart disease (IHD) among adults with HIV in Tanzania.

Methods: Adults presenting for routine HIV care at a clinic in northern Tanzania were consecutively enrolled and were administered a standardised KAP survey. For each participant, an IHD knowledge score was calculated by tallying correct answers to the IHD knowledge questions, with maximum score 10.

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Objective: There is a rising burden of myocardial infarction (MI) within sub-Saharan Africa. Prospective studies of detailed MI outcomes in the region are lacking.

Methods: Adult patients with confirmed MI from a prospective surveillance study in northern Tanzania were enrolled in a longitudinal cohort study after baseline health history, medication use, and sociodemographic data were obtained.

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Background: The burden of heart failure is growing in sub-Saharan Africa, but there is a dearth of data characterizing care and outcomes of heart failure patients in the region, particularly in emergency department settings.

Methods: In a prospective observational study, adult patients presenting with shortness of breath or chest pain to an emergency department in northern Tanzania were consecutively enrolled. Participants with a physician-documented clinical diagnosis of heart failure were included in the present analysis.

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Background Evidence suggests that acute coronary syndrome (ACS) is underdiagnosed in sub-Saharan Africa. Triage-based interventions have improved ACS diagnosis and management in high-income settings but have not been evaluated in sub-Saharan African emergency departments (EDs). Our objective was to estimate the effect of a triage-based screening protocol on ACS diagnosis and care in a Tanzanian ED.

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Background: Growing evidence suggests that under-diagnosis of acute myocardial infarction (AMI) may be common in sub-Saharan Africa. Prospective studies of routine AMI screening among patients presenting to emergency departments in sub-Saharan Africa are lacking. Our objective was to determine the prevalence of AMI among patients in a Tanzanian emergency department.

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Background: Acute coronary syndrome (ACS) is thought to be a rare diagnosis in sub-Saharan Africa, but little is known about diagnostic practices for patients with possible ACS symptoms in the region.

Objective: To describe current care practices for patients with ACS symptoms in Tanzania to identify factors that may contribute to ACS under-detection.

Methods: Emergency department patients with chest pain or shortness of breath at a Tanzanian referral hospital were prospectively observed.

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Background: Little is known about healthcare-seeking behaviour and barriers to care for cardiovascular disease (CVD) in sub-Saharan Africa.

Methods: Emergency department patients in Tanzania with acute CVD were prospectively enrolled. Questionnaires were administered at enrollment and 30 d later.

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Background: The incidence of acute coronary syndrome (ACS) is growing across sub-Saharan Africa and many healthcare systems are ill-equipped for this growing burden. Evidence suggests that healthcare providers may be underdiagnosing and undertreating ACS, leading to poor health outcomes. The goal of this study was to examine provider perspectives on barriers to ACS care in Tanzania in order to identify opportunities for interventions to improve care.

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