Heart disease in East Timor: cross-sectional analysis of 474 patients attending Timor-Leste's first cardiology service

Telemedicine to Timor-Leste: implementing an international cardiac telehealth service during population dislocation, floods and COVID-19

Background

The East Timor Hearts Fund (ETHF) has provided cardiac services in Timor‐Leste since 2010, conducting three clinics yearly. With international border closures due to the COVID‐19 pandemic, development of collaborative telehealth services was required.

Methods

Scoping discussions identified major challenges (structural, patient‐related and medical system‐related). At two pilot clinics, patient history, investigation and management were collated. Clinic metrics were compared to an index face‐to‐face clinic in February 2019. Post‐clinic discussions identified areas of success and shortfall in the conduct of the telehealth clinics.

Results

23 patients were reviewed at the online telehealth clinics held onsite at Timorese medical facilities. Compared to an index 2019 clinic,there were markedly lower numbers of new referrals (2 vs 190 patients, 8.7% vs 59.4%). Patients seen at the online clinic were predominantly female (17/23, 73.9%) and Dili‐based (18/23, 78.3%) with a mean age of 25.9 ± 7.2 years old. The majority (12/23, 52.2%) had isolated rheumatic mitral valve disease. Investigations including electrocardiography, pathology, echocardiography and 6‐minute walk tests were conducted in select patients. Medication advice was provided for 10 (43.5%) patients. 11 patients (47.8%) were deemed to require urgent intervention. Post‐clinic discussions indicated general satisfaction with telehealth clinics, although frustration at current inability to provide interventional services was highlighted.

Conclusion

Our pilot telehealth clinics indicate that capacity‐building telemedicine can be rapidly implemented in an emergency setting internationally. Clinic design benefits from careful identification and resolution of challenges to optimise flow. Cardiac patients in Timor‐Leste have a significant burden of disease amenable to intervention.

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Morbidity and mortality of rheumatic heart disease and acute rheumatic fever in the inpatient setting in Timor-Leste

AIM

To describe the clinical features, treatment and outcomes of acute rheumatic fever (ARF) and rheumatic heart disease (RHD) in children admitted to the national referral hospital in Dili, Timor-Leste.

METHODS

This prospective study documented cases of ARF and RHD in children aged 14 years and under who were admitted between June 2017 and May 2019. ARF was diagnosed using an adapted version of the 2015 Jones criteria and presumed (rather than proven) exposure to group A Streptococcus. Clinical and echocardiographic findings, comorbidities and discharge outcomes are reported.

RESULTS

A total of 63 patients were admitted with ARF or RHD; 54 were diagnosed with RHD for the first time. Median age was 11 years (range 3-14); 48% were female. Of those with echocardiograms, 56/58 had RHD, 55/56 (98%) had mitral regurgitation (37/55 (67%) severe), 11/56 (20%) had mitral stenosis and 43/56 (77%) had aortic regurgitation. Left ventricular dysfunction (55%), pulmonary hypertension (64%) and cardiac failure (78%) were common. Four (6%) patients died in hospital, and 30/59 (51%) of surviving patients were lost to follow up.

CONCLUSIONS

Community echocardiography screening has reported a high prevalence of undetected mild to moderate cases of RHD in Timor-Leste, whereas this hospital study documents mostly severe disease among hospitalised patients with a high case fatality rate and loss to follow up. RHD is a significant health problem in Timor-Leste and improved recognition and diagnosis, as well as effective delivery of treatment and follow-up are imperative.

Single-View Echocardiography by Nonexpert Practitioners to Detect Rheumatic Heart Disease: A Prospective Study of Diagnostic Accuracy

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Background:

Echocardiographic screening can detect asymptomatic cases of rheumatic heart disease (RHD), facilitating access to treatment. Barriers to implementation of echocardiographic screening include the requirement for expensive equipment and expert practitioners. We aimed to evaluate the diagnostic accuracy of an abbreviated echocardiographic screening protocol (single parasternal-long-axis view with a sweep of the heart) performed by briefly trained, nonexpert practitioners using handheld ultrasound devices.

Methods:

Participants aged 5 to 20 years in Timor-Leste and the Northern Territory of Australia had 2 echocardiograms: one performed by an expert echocardiographer using a GE Vivid I or Vivid Q portable ultrasound device (reference test), and one performed by a nonexpert practitioner using a GE Vscan handheld ultrasound device (index test). The accuracy of the index test, compared with the reference test, for identifying cases with definite or borderline RHD was determined.

Results:

There were 3111 enrolled participants; 2573 had both an index test and reference test. Median age was 12 years (interquartile range, 10–15); 58.2% were female. Proportion with definite or borderline RHD was 5.52% (95% CI, 4.70–6.47); proportion with definite RHD was 3.23% (95% CI, 2.61–3.98).

Compared with the reference test, sensitivity of the index test for definite or borderline RHD was 70.4% (95% CI, 62.2–77.8), specificity was 78.1% (95% CI, 76.4–79.8).

Conclusions:

Nonexpert practitioners can be trained to perform single parasternal-long-axis view with a sweep of the heart echocardiography. However, the specificity and sensitivity are inadequate for echocardiographic screening. Improved training for nonexpert practitioners should be investigated.

Taking the pulse of Timor-Leste's cardiac needs: a 10-year descriptive time-trend analysis

BACKGROUND

Timor-Leste is one of the poorest countries in the world. The East Timor Hearts Fund is a charitable organisation involving Australian cardiologists providing outreach screening and access to cardiac interventions.

AIMS

To assess ten years of clinical volume, demographics and patient outcomes. Our intention was to identify existing limitations to facilitate planning for further capacity building over the next decade.

METHODS

The East Timor Hearts Fund database was sectioned into 2-year intervals (2009/2010, 2011/2012, 2013/2014, 2015/2016 and 2017/2018). Demographics and clinical outcomes of patients were compared, with subgroup analysis of adult (>18 years old), paediatric and interventional patients.

RESULTS

Over 10 years, 2050 patient encounters have occurred; 1119 (54.6%) encounters occurred in 2017/2018; 73.6% of patients were assessed in the capital Dili. Rheumatic and congenital cardiac diseases remain very common (39.1% of adult new patients and 74.2% of paediatric new patients), with 1.4% of new patients exhibiting both pathologies. The number of new patients with rheumatic or congenital heart disease tripled in 2017/2018 compared to 2009/2010 (99 vs 34 patients, P < 0.0001). Paediatric case volume increased over 10-fold over 10 years (288 new patients in 2017/2018 vs 24 in 2009/2010, P < 0.0001), with corresponding increase in proportion of paediatric interventions (59.4% in 2017/2018 vs 25.0% in 2009/2010, P = 0.027). For patients undergoing intervention (n = 87), post-procedural complications and mortality are extremely low (3.4% and 1.1%, respectively), with all eligible patients attending at least one post-procedure appointment.

CONCLUSION

Demand for cardiac services in Timor-Leste is rising exponentially, with inequitable geographic coverage. Rheumatic and congenital cardiac diseases remain priorities for assessment, and paediatric case volume is increasing. Patients undergoing intervention experience good medical outcomes.

The RECARDINA Study protocol: diagnostic utility of ultra-abbreviated echocardiographic protocol for handheld machines used by non-experts to detect rheumatic heart disease

INTRODUCTION

Rheumatic heart disease (RHD) causes significant morbidity and mortality in young people from disadvantaged populations. Early detection through echocardiography screening can facilitate early access to treatment. Large-scale implementation of screening could be feasible with the combination of inexpensive standalone ultrasound transducers and upskilling non-expert practitioners to perform abbreviated echocardiography.

METHODS AND ANALYSIS

A prospective cross-sectional study will evaluate an abbreviated echocardiography screening protocol for the detection of latent (asymptomatic) RHD in high-risk populations. The study will evaluate the diagnostic accuracy of health worker conducted single parasternal long axis view with a sweep using handheld devices (SPLASH) (Philips Lumify S4-1 phased array transducer). Each participant will have at least one reference test performed on the same day by an expert echocardiographer. Diagnosis of RHD will be determined by a panel of three experts, using 2012 World Heart Federation criteria. Sensitivity and specificity of the index test will be calculated with 95% CIs, to determine diagnostic accuracy of a screen-and-refer approach to echocardiography screening for RHD. Remote review of SPLASH images obtained by health workers will facilitate evaluation of the sensitivity and specificity of an alternative approach, using external review of health worker obtained SPLASH images to decide onward referral.

ETHICS AND DISSEMINATION

Ethics approval was obtained from the Human Research Ethics Committee of the Northern Territory Department of Health and Menzies School of Health Research, for the project to be carried out in Timor-Leste (HREC 2019-3399), and in Australia, following review by the Aboriginal Ethics subcommittee (HREC 2019-334). Ethical and technical approval was granted in Timor-Leste, by the Institute National of Health Research Ethics and Technical Committee (1073-MS-INS/GDE/VII/2019). Study results will be disseminated in the communities involved in the study, and through peer-reviewed publications and conference abstracts.

TRIAL REGISTRATION NUMBER

The Australia New Zealand Clinical Trials Registry (ACTRN12620000122954).

Breast disease in Timor-Leste

BACKGROUND

Surgically treatable conditions are well documented in high-income countries. There is a gap in epidemiological understanding of breast pathology in many developing countries, Timor-Leste among them. This study was conducted to determine the burden of breast disease and to inform public health measures to address early detection, diagnosis and management.

METHODS

A retrospective quantitative case-control study was conducted at Guido Valadares National Hospital in Dili. Patients were included if they attended surgical outpatients or had a pathology specimen recorded between 1 September 2016 and 1 September 2017.

RESULTS

There were 444 female patients with a clinical diagnosis of breast disease over the 12-month period. The average age was 33.7 years. There were 188 (42.3% of total sample) cases of fibroadenoma and 122 (27.4% of total sample) diagnoses consistent with non-specific lumps. Of the 116 female patients presenting to Guido Valadares National Hospital who had a biopsy, 62.6% were malignant or hyperplastic in nature, and 86% of those with a malignant biopsy had clinically locally advanced disease.

CONCLUSION

Breast conditions including cancer in Timor-Leste are relatively common and occur in young women in the prime of their lives (37 years of age). Developing a national cancer registry and funding directed towards improving early presentation and good clinical care of breast cancer patients will be critical for reducing early morbidity and mortality and improving other patient outcomes including income loss, gender health inequality and the intergenerational effects of early parental death.

Adult and Paediatric Cardiac Intervention in Timor-Leste: Disease Burden, Demographics and Clinical Outcomes

BACKGROUND

The East Timor Hearts Fund (ETHF) is a charitable organisation of Australian cardiologists providing outreach screening in Timor-Leste. For patients requiring intervention, ETHF arranges logistics, procedures, and postoperative care. The aim of this project is to evaluate outcomes of patients requiring intervention.

METHODS

The ETHF database of all patients was utilised to identify patients with disease warranting surgical or percutaneous intervention. Both patients who underwent intervention and those who did not proceed to intervention were included in this study. Patients who had intervention arranged by other organisations but have then had follow-up with ETHF were also included. Overall demographics and pre and postoperative factors were assessed, with sub-group analysis of adult and paediatric patients to identify any differences in care.

RESULTS

Of 221 patients requiring intervention, 101 patients underwent intervention, receiving 22 different operations or procedures. Patients were predominantly young (median age 17.5 years) and female (64.7%), with rheumatic heart disease (63.8%). Twenty-four (24) (33.3%) women aged 15-45 years old with cardiac disease warranting intervention were documented as pregnant or breastfeeding at time of clinic assessment. Of patients who did not proceed to intervention, adults were more likely to be lost to follow-up (42.4% vs 18.5%) while paediatric patients were more likely to experience progression of disease (18.5% vs 7.5%, p=0.005). Median waitlist time was 5 months, with no significant difference between adults and children, correlating with a preoperative mortality rate of 5.4%. For patients who underwent intervention, post-procedure mortality was extremely low (0.9%) and attendance of at least one post-procedure review was excellent (99.0%). Eleven (11) (10.9%) patients have required repeat intervention, with no difference in rates between adult and paediatric patients. Length of follow-up extends up to 20 years for some patients.

CONCLUSION

The Timor-Leste interventional cohort was predominantly a young female population with rheumatic and congenital cardiac disease. There were also high rates of pregnancy amongst female patients with severe cardiac disease. Delayed access to intervention may result in preoperative adverse events and mortality, and is a key target for improvement. Patients who undergo intervention have very low post-procedural mortality, good adherence to early medical follow-up and good long-term outcomes.

Single Parasternal-Long-Axis-View-Sweep Screening Echocardiographic Protocol to Detect Rheumatic Heart Disease: A Prospective Study of Diagnostic Accuracy

BACKGROUND

Echocardiographic screening in school-aged children can detect rheumatic heart disease (RHD) prior to the manifestation of symptoms of heart failure. The challenge is making this practical and affordable on a global scale. This study aims to evaluate the diagnostic utility of an ultra-abbreviated echocardiographic screening protocol involving a single parasternal-long-axis-view-sweep of the heart (SPLASH) in two dimensional (2D) and colour Doppler imaging (index test).

METHODS

This prospective study of diagnostic accuracy compared the diagnostic utility of the index screening test with a comprehensive reference test (standard echocardiographic screening protocols) as per World Heart Federation (WHF) echocardiographic criteria. School students in Timor-Leste aged 5-20 years were enrolled. Both index and reference test images were acquired by cardiologists on Vivid I or Q machines (GE Healthcare, Marlborough, MA, USA).

RESULTS

A total of 1,365 participants were screened; median age was 11 years. The estimated prevalence of definite and borderline RHD was 35.2 per 1,000. Congenital heart disease was identified in 11 children (0.8%) with two needing cardiac surgery. Abnormal SPLASH views were found in 109/1365 (7.99%). No cases of RHD or significant congenital heart disease were missed. Sensitivity and specificity of the abbreviated protocol for detecting RHD were 1.0 and 0.95 respectively.

CONCLUSIONS

A simplified echocardiography screening protocol using SPLASH is highly sensitive and specific and could significantly improve the efficiency of RHD screening. It has the potential to expedite training of health workers whilst protecting the modesty of students.

Respiratory problems in low-resource settings

PURPOSE OF REVIEW

Chronic breathlessness is common in patients with advanced illness who require palliative care. Achieving good symptom control can be challenging. More people with advanced illness live in low and middle income than in high-income countries, but they are much less likely to receive palliative care. Most of the emerging evidence for the palliative management of chronic breathlessness is from high-income countries. This review explores the context of chronic breathlessness in low-income settings, how evidence for control of chronic breathlessness might relate to these settings and where further work should be focused.

RECENT FINDINGS

Systems for control of noncommunicable diseases (NCDs) in these low-income contexts are poorly developed and health services are often overwhelmed with high levels both of NCD and communicable disease. Multidisciplinary and holistic approaches to disease management are often lacking in these settings. Developing an integrated primary care approach to NCD management is increasingly recognized as a key strategy and this should include palliative care. Most evidence-based approaches to the control of chronic breathlessness could be adapted for use in these contexts SUMMARY: Hand held fans, breathing techniques, graded exercise and use of low-dose morphine can all be used in low-income settings particularly in the context of holistic care. Research is needed into the most effective ways of implementing such interventions and palliative care needs to be promoted as a fundamental aspect of NCD management.