| Literature DB >> 34287383 |
John Paul Dongo1, Stephen M Graham1,2, Joseph Nsonga1, Fred Wabwire-Mangen3, Elizabeth Maleche-Obimbo4, Ezekiel Mupere5, Rodrigo Nyinoburyo6, Jane Nakawesi6, Gerald Sentongo7, Pauline Amuge7, Anne Detjen8, Frank Mugabe9, Stavia Turyahabwe9, Moorine P Sekadde9, Stella Zawedde-Muyanja10.
Abstract
Childhood tuberculosis (TB) is consistently under-detected in most high-burden countries, including Uganda, especially in young children at high risk for severe disease and mortality. TB preventive treatment (TPT) for high-risk child contacts is also poorly implemented. The centralised concentration of services for child TB at the referral level is a major challenge in the prevention, detection and treatment of TB in children. In 2015, the DETECT Child TB Project was implemented in two districts of Uganda and involved decentralisation of healthcare services for child TB from tertiary to primary healthcare facilities, along with establishing linkages to support community-based household contact screening and management. The intervention resulted in improved case finding of child and adult TB cases, improved treatment outcomes for child TB and high uptake and completion of TPT for eligible child contacts. A detailed description of the development and implementation of this project is provided, along with findings from an external evaluation. The ongoing mentorship and practical support for health workers to deliver optimal services in this context were critical to complement the use of training and training tools. A summary of the project's outcomes is provided along with the key challenges identified and the lessons learnt.Entities:
Keywords: case detection; child; contact management; implementation; tuberculosis
Year: 2021 PMID: 34287383 PMCID: PMC8293469 DOI: 10.3390/tropicalmed6030131
Source DB: PubMed Journal: Trop Med Infect Dis ISSN: 2414-6366
Figure 1Map of Uganda showing the location of the DETECT Child TB participating districts and the control districts.
Summary of findings from evaluation of DETECT Child TB Project [14,15].
| Project Outcome | Data Analysis # | External Evaluation Findings |
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| Proportion of all diagnosed child TB cases by health facility level * | Baseline: 96% at level V, 3% at level IV and 1% at level III | The DETECT model demonstrated that child TB services can be successfully decentralised with the greatest increase in detection occurring at the level III facility in both districts. |
| Health worker knowledge, Wakiso District | Average (range) test score | The ability and confidence of health workers in peripheral health facilities to diagnose TB in children was improved and the numbers of of unnecessary referrals were reduced. |
| Health worker knowledge, Kabarole District | Average (range) test score | |
| Number of functional TB basic management units for diagnosis and treatment by district | Baseline: 24 in Kabarole and 41 in Wakiso District | Repair of non-functional microscopes and re-training of laboratory personnel benefit TB services and detection for all ages. |
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| Caseload of child TB and as a proportion of total TB notifications | 139% increase in 0–14 years | The majority of respondents from the focus group discussions and in-depth interviews felt that the project had improved delivery of TB services, as it had accomplished the following: built capacity of health workers; increased detection of child TB cases; increased confidence in child TB management; strengthened facility and community household contact-tracing activities; built and increased community trust in healthcare workers through integration; contributed to a reduction in deaths in children. |
| TB cases in young children, proportion of all child TB cases | Increase in <5 years ageBaseline: 99, 36.5% | |
| Bacteriologically confirmed (BC) TB cases in children | 61% increase in BC cases detected, but proportion with BC remained low in children. | |
| Cases of TB in older adolescents and adults | 32% increase | |
| Treatment success, cure or treatment complete | Significant improvement | |
| Died or treatment failure | Reduction in poor outcomes: | |
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| Training and support of community health workers to implement | 178 (target was 168) community health workers received training | At least two per facility were trained over 2 days, provided with job aides and recording tools, linked with the facility-based TB focal person for ongoing mentorship and supervision. |
| Households screened | 1617 households with 2270 child contacts | The project increased screening of households of smear-positive TB patients by 142%. |
| Child contacts with positive symptom screen | 602 (27%) of 2270 child contacts were symptomatic | Screening symptoms used were cough, weight loss or poor weight gain, fever or lethargy/reduced playfulness. |
| Child contacts evaluated for TB disease | 486 (81%) of 602 symptomatic child contacts | 19% of symptomatic child contacts did not present to the health facility for further evaluation. |
| Child contacts diagnosed with TB | 55 child TB cases detected | Lower numbers than expected for overall case detection—2.4% of all child contacts. Of symptomatic child contacts who presented to the facility for evaluation, 11% diagnosed with TB. |
| Child contacts eligible for TPT | 910 young child contacts without active TB identified | Challenges with availability of isoniazid-alone preparation for TPT at beginning of project. |
| Eligible child contacts who initiated IPT | 670 or 77% of 910 eligible | Remarkable improvements in IPT uptake noted in both districts over time but lower than the 90% target. |
| Child contacts who completed IPT | 569 or 85% of 670 who commenced IPT | Although short of the 90% target, a high rate of completion. |
TB: tuberculosis; TPT: tuberculosis preventive treatment; IPT: isoniazid preventive treatment. # Comparison was between two separate 18-month periods: baseline or pre-implementation was January 2014–June 2015; and implementation was July 2015–December 2016. * Level V: regional referral hospital for the district; level IV: secondary level health facility with laboratory and inpatient care; level III: primary level health facility with sputum smear microscopy available. ^ Routine household screening by community health workers was introduced by the project, and so there were no baseline programmatic data.
Figure 2System of referral and patient management between the community and healthcare facilities. HH: household; IPT: isoniazid preventive treatment.
Challenges identified and lessons learnt from the DETECT Child TB Project.
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Feasibility for expansion: The human resources and investment required to establish and scale-up effective decentralisation of services to additional districts or to national coverage may be challenging in a resource-limited setting. A formal evaluation of the cost-effectiveness of the completed pilot project is underway. Sustainability: The time and effort required to provide training of trainers and then training for healthcare workers at primary care and community, followed-up by continuous quality improvement efforts through regular meetings and support may be difficult to sustain. The DETECT Child TB Project model is being applied in other districts in Uganda and has informed operational research and programmatic activities in other countries in the region. Diagnostic support: Although appropriate sampling techniques and laboratory services for bacteriological confirmation remain important, the main emphasis for improving diagnosis of child TB should focus on improving healthcare worker skills to make a clinical diagnosis of TB and increasing availability to diagnostic to aid clinical diagnosis, e.g., chest X-ray. Treatment: TB treatment and TPT dosage guidelines by weight bands must be available as well as appropriate preparations for young children, such as child-friendly fixed-dose combinations for treatment and single-drug formulations for TPT. The fixed-dose combinations for young children are now widely available, and the preparation that is used for continuation phase treatment (4RH) is also suitable, effective and safe as TPT (3RH) for young child contacts without active TB or HIV. Documentation of household contact tracing activities was manually done, which posed challenges in tracking child TB contacts referred from the households to the health system. However, this improved with continued mentoring and supervision of community healthcare workers. Challenges for household contact screening and management included the following:
Low case detection especially as symptomatic child contacts referred from households did not always present for further evaluation. HIV testing of well contacts without symptoms was not performed, and so there were missed opportunities for people living with HIV to receive IPT. Refusal by parents to give IPT, usually because they were not convinced that their well child should receive medicine daily for months. |
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Sustainability and scalability: District health teams and political leadership stated that the input and resources provided by implementation partners were pivotal to the success of the DETECT Child TB intervention and, thus a requirement for it to be sustained in the two pilot districts or to be successfully implemented in other districts. Health system strengthening: Training in a workshop setting followed by mentoring and supervision were crucial to effect lasting improvement in healthcare worker confidence and competence for child TB care. Wider capacity strengthening: An integrated approach can provide important benefits for all aspects of TB detection and care beyond the primary focus of the intervention, which in this project was the detection, treatment and prevention of TB in children. Training tools: The Union’s resources and online course on child TB were highly valued for initial group training and continuous in-service updates for healthcare workers. Decentralised detection of child TB: The diagnosis of TB in children, including clinical diagnosis in young children, can be achieved at the primary and secondary health facility level where most sick children with TB initially present. Decentralised treatment of child TB: TB in children can be successfully treated with a first-line treatment regimen at the primary and secondary health facility level. Community-based contact screening and management: Community healthcare workers can be successfully engaged to provide integrated care for household contacts of TB cases, including the detection and referral of symptomatic child contacts. Preventive treatment: Linkage of household contacts with primary care facilities through community healthcare workers can achieve high rates of uptake and completion of TPT. Coordination, communication and management through the consortium of partners was vital for the success of the project. |