Feasibility of Rapid Case Ascertainment for Cancer in East Africa: An Investigation of Community-Representative Kaposi Sarcoma in the Era of Antiretroviral Therapy. (October 2021)

• Record Type: Journal Article
• Authors: Semeere, Aggrey; Byakwaga, Helen; Laker-Oketta, Miriam; Freeman, Esther; Busakhala, Naftali; Wenger, Megan; Kasozi, Charles; Ssemakadde, Matthew; Bwana, Mwebesa; Kanyesigye, Michael; Kadama-Makanga, Philippa; Rotich, Elyne; Kisuya, Job; Sang, Edwin; Maurer, Toby; Wools-Kaloustian, Kara; Kambugu, Andrew; Martin, Jeffrey
• Is Part Of: Cancer epidemiology. Volume 74(2021)
• Publication Date: 2021-10
• Subjects: Kaposi sarcoma -- HIV infection -- Rapid case ascertainment -- Feasibility -- Community -- Sub-Saharan Africa -- East Africa -- Uganda -- Kenya; Cancer -- Epidemiology -- Periodicals; Cancer -- Prevention -- Periodicals; Cancer -- Diagnosis -- Periodicals; Carcinogenesis -- Periodicals; 616.994005
• DOI: 10.1016/j.canep.2021.101997
• Languages: English
• ISSNs: 1877-7821

Abstract

Abstract: Background: Rapid case ascertainment (RCA) refers to the expeditious and detailed examination of patients with a potentially rapidly fatal disease shortly after diagnosis. RCA is frequently performed in resource-rich settings to facilitate cancer research. Despite its utility, RCA is rarely implemented in resource-limited settings and has not been performed for malignancies. One cancer and context that would benefit from RCA in a resource-limited setting is HIV-related Kaposi sarcoma (KS) in sub-Saharan Africa. Methods: To determine the feasibility of RCA for KS, we searched for all potential newly diagnosed KS among HIV-infected adults attending three community-based facilities in Uganda and Kenya. Searching involved querying of electronic medical records, pathology record review, and notification by clinicians. Upon identification, a team verified eligibility and attempted to locate patients to perform RCA, which included epidemiologic, clinical and laboratory measurements. Results: We identified 593 patients with suspected new KS. Of the 593, 171 were ineligible, mainly because biopsy failed to confirm KS (65%) or KS was not new (30%). Among the 422 remaining, RCA was performed within 1 month for 56% of patients and within 3 months for 65% (95% confidence interval: 59 to 70%). Reasons for not performing RCA included intervening death (47%), inability to contact (44%), refusal/unsuitable to consent (8.3%), and patient re-location (0.7%). Conclusions: We found that RCA ― an important tool for cancer research in resource-rich settings ― is feasible for the investigation of community-representative KS in East Africa. Feasibility of RCA for KS suggests feasibility for other cancers in Africa.