Wilms tumor treatment protocol compliance and the influence on outcomes for children in Tanzania.

BACKGROUND: Standardized Wilms tumor treatment protocols exist for low- and middle-income countries, but outcomes equivalent to high-income countries are not achieved outside of clinical trials. As Wilms tumor treatment protocols in Africa shift with increasing resource capacity, it is not known how treatment compliance to each stage of therapy affects outcomes and where the critical breakpoints are for protocol adherence in clinical practice. PROCEDURE: We describe both treatment outcomes and treatment protocol adherence in a retrospective single-center cohort study of pediatric Wilms tumor patients at a zonal cancer referral hospital in Tanzania from 2016 to 2019, treated per the International Society of Paediatric Oncology standard (2016-2017) or Tanzania adapted (2018-2019) therapy protocols. RESULTS: A total of 69 patients were evaluated. The two-year overall survival and event-free survival rates were 40% and 29%, respectively. Only 29% of patients completed recommended chemotherapy per protocol, and completion of preoperative and postoperative chemotherapy was predictive of two-year overall survival (odds ratio [OR] 14.4, p < .001). There were delays at almost every stage of treatment, especially time from preoperative chemotherapy to surgery (56 days), from surgery to pathology report (30 days), and from surgery to initiation of postoperative chemotherapy (38 days). CONCLUSIONS: Nonadherence with recommended Wilms tumor treatment guidelines due to key health system delays correlated to reduced overall survival rates, with chemotherapy nonadherence due to abandonment, lack of surgery, and deaths on therapy as the strongest contributors. Future interventions targeting health system delays and reducing deaths during therapy are critical to improving protocol compliance and increasing overall survival for pediatric Wilms tumor patients in low-resource settings.

Bacteriospermia, extended spectrum beta lactamase producing Gram-negative bacteria and other factors associated with male infertility in Mwanza, Tanzania: a need of diagnostic bacteriology for management of male infertility.

BACKGROUND: Infections caused by Extended spectrum beta lactamase (ESBL) producing bacterial are global challenge. There is limited information on the magnitude of bacteriospermia, ESBL producing Gram-negative bacteria (GNB) causing bacteriospermia and factors associated with male infertility. This study determined magnitude of bacteriospermia, ESBL-GNB and other factors association with infertility among presumptive infertile men in Mwanza, Tanzania. METHODS: A cross-sectional hospital-based study was conducted between May 2017 and July 2018 among 137 presumptive infertile men. Semen specimens were self-collected by masturbation into clean, sterile and none-spermicidal containers and processed following laboratory standard operating procedures (SOPs). Data analysis was done using STATA 13.0. RESULTS: Gram-negative bacteria were predominantly isolated (86.4%), of which 31.6% were ESBL producers. In a total 44 bacteria were isolated from semen culture. The blaCTX-M gene was detected in 75% of phenotypically confirmed ESBL producers. Infertility was independently found to be associated with abnormal spermatozoa morphology (OR (95%CI): 14.48(3.17-66.05)) and abnormal spermatozoa motility (OR (95%CI): 0.05(0.01-0.24)). However, neither bacteriospermia (OR (95%CI): 0.86(0.29-2.59)) nor ESBL bacteriospermia (OR (95%CI): 0.13(0.01-1.22)) was found to be associated with infertility. CONCLUSION: One third of bacteriospermia is due to ESBL-producers with history of antibiotic use being protective factor for infertility. Abnormal spermatozoa morphology and poor spermatozoa forward motility independently predicted infertility.

Prevalence and Associated Factors of Incidentally Diagnosed Prostatic Carcinoma among Patients Who Had Transurethral Prostatectomy in Tanzania: A Retrospective Study.

BACKGROUND: Prostatic carcinoma carries a high morbidity and mortality if it is not diagnosed early. In resource limited countries, patients are at increased risk of being diagnosed late as they are operated for presumed benign prostatic hyperplasia. The information on the magnitude and risk factors of this problem in our setting could assist in the overall optimization of care of patients at risk. METHODS: A retrospective study of patients who underwent prostatectomy for presumed benign prostatic enlargement was done at Bugando University Hspital in Tanzania. Patients' age, creatinine levels, urological Ultrasound, prostate specific antigen and Biopsy results were analyzed using STATA 11. The prevalence of incidental prostatic cancer was calculated and logistic regression was done for factors associated with incidental prostatic cancer. RESULTS: In total, 152 patients were included in this study. The median age was 69 (SD 9.4) years, 16 (10.53%,) and 49 (32.24%) participants had Hydronephrosis and elevated creatinine levels respectively. Eighty six (58.56%) patients had PSA >10 ng/mL and in total; 33 (21.71%) had incidental prostatic carcinoma. The incidental prostatic carcinoma was independently associated with age of 70- 80years (AOR=2.8, p = 0.013) and PSA levels >10ng/mL (AOR=3.2, p=0.014). CONCLUSIONS: The prevalence of incidental prostatic carcinoma is high among patients undergoing transurethral prostatectomy for presumed benign prostatic hyperplasia in Tanzania with increased risk at age of 70-80 years and among those with PSA >10ng/mL. A national awareness campaign coupled with focused screening of patients above 60 years could increase the detection rate of prostatic carcinoma and reduce the magnitude of incidental diagnosis of this disease.

Fournier's gangrene at a tertiary health facility in northwestern Tanzania: a single centre experiences with 84 patients.

BACKGROUND: Fournier's gangrene (FG) is a rare, rapidly progressive, necrotizing fasciitis of the external genitalia and perineum, leading to soft-tissue necrosis. Despite antibiotics and aggressive debridement, the mortality rate of FG remains high. This study describes our experiences in the management of FG and identifies prognostic factors. METHODS: This was a descriptive retrospective study of patients with FG treated at Bugando Medical Centre between November 2006 and April 2014. RESULTS: A total of 84 patients (M:F = 41:1) were studied. The median age was 34 years (range 15-76 years). The most common predisposing factor was diabetes mellitus (16.7%). Nine (11.3%) patients were HIV positive. Bacterial culture results were obtained in only 46 (54.8%) patients. Of these, 38(82.6%) had polymicrobial bacterial growth while 8 (17.4%) had monomicrobial bacterial growth. Escherichia coli (28.3%) were the most frequent bacterial organism isolated. All the microorganisms isolated showed high resistance to commonly used antibiotics except for Meropenem and imipenem, which were 100% sensitive each respectively. All patients were treated with a common approach of resuscitation, broad-spectrum antibiotics, and wide surgical excision. The median length of hospital stay (LOS) was 28 days and mortality rate was 28.6%. Systemic inflammatory response syndrome and diabetes mellitus were significantly associated with prolonged LOS (p < 0.001), whereas advancing age (>60 years), late presentation (>48 h), systemic inflammatory response syndrome on admission, diabetes mellitus, extension of infection to the abdominal wall, FG severity score >9 and HIV infection with CD4 count <200 µl/cells) were independent predictors of mortality (p < 0.001). CONCLUSION: Fournier's gangrene remains a very severe disease with high mortality rates. Early recognition of infection associated with invasive and aggressive treatment is essential for attempting to reduce mortality rates associated with this disease in our setting.