School of Health Sciences (SHS) Researches

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Browsing School of Health Sciences (SHS) Researches by Author "Carlos Cabrera, Dreque"

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    Diabetic Foot Ulcers: Surgical Characteristics, Treatment Modalities and Short-Term Treatment Outcomes at a Tertiary Hospital in South-Western Uganda
    (Open Access Surgery, 2022) Mvuyo Maqhawe, Sikhondze; Deus, Twesigye; Charles Newton, Odongo; David, Mutiibwa; Edson, Tayebwa; Leevan, Tibaijuka; Samuel D, Ayana; Carlos Cabrera, Dreque
    Abstract Background: Diabetic foot ulcers (DFUs) are a prevalent and serious consequence of poorly controlled diabetes. Hospitalizations are frequent among DFU patients, and these patients are at risk of lower extremity amputations (LEA). Uganda has few studies detailing DFUs and their management. We described the surgical characteristics, treatment modalities and short-term treatment outcomes of DFUs at Mbarara Regional Referral Hospital, in southwestern Uganda. Methods: A prospective cohort study involving 62 patients with DFUs was conducted from February 2021 to September 2021. We captured socio-demographic data, surgical characteristics, treatment and treatment outcomes of DFUs over a 5-week follow-up period, through an interviewer-administered structured questionnaire. Descriptive statistics were used at analysis. Results: The mean age of participants was 57.0 ± 12.27 years, comprising 35 (56.5%) females. Majority had diabetes mellitus (DM) for more than 10 years, predominantly type 2 (93.5%), and 33.9% with very poor glycaemic control (HBA1c>9.5%). Most ulcers involved the toes (27.4%), with 80.7% being large (>3 cm2 ). Severe DFUs (Wagner grade 3–5) were seen in 66.2% of patients. Clinically infected ulcers mainly had Pseudomonas spp cultured. Arterial occlusion was detected in 35.5% through lower extremity Doppler ultrasonography. Initial surgical interventions were surgical debridement and LEA performed in 50.0% and 46.8%, respec tively. Eight (42.1%) patients suffered surgical site infection, while 26.3% had persistent gangrene after initial surgery. Revision surgery was performed in 25.8% of the participants. Mortality rate was 1.6%, and mean length of hospital stay was 17.0 ± 11.1 days. Conclusion: More than half of the patients had advanced DFUs (Wagner grades 3–5). Poor glycemic control and late presentation were common. Lower extremity amputation was a common initial treatment modality for DFUs. Routine lower extremity Doppler ultrasonography is recommended to assess peripheral arterial disease for DFU patients. Wound swabbing for culture and sensitivity testing is encouraged for appropriate antibiotic coverage
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    Etiology, Clinical Presentations, and Short-Term Treatment Outcomes of Extrahepatic Obstructive Jaundice in South-Western Uganda
    (Clinical and Experimental Gastroenterology journal, 2022-11-13) Charles Newton, Odongo; Carlos Cabrera, Dreque; David, Mutiibwa; Felix, Bongomin; Felix, Oyania; Mvuyo Maqhawe, Sikhondze; Moses, Acan; Raymond, Atwine; Fred, Kirya; Martin, Situma
    Background: The diagnosis of extrahepatic obstructive jaundice (EHOJ) remains a challenge and is often made late in low-resource settings. Systematic data are limited on the etiology and prognosis of patients with obstructive jaundice in Uganda. The objective of this study was to determine the etiology, clinical presentations, and short-term treatment outcomes of patients managed for EHOJ at Mbarara Regional Referral Hospital (MRRH) in south-western Uganda. Methods: Between September 2019 and May 2020, we prospectively enrolled a cohort of patients who presented with EHOJ at MRRH. A pretested, semi-structured data collection tool was used to abstract data from both the study participants and their files. Results: A total of 72 patients, 42 (58.3%) of whom were male with a median age of 56 (range of 2 months to 95 years) were studied. Forty-two (58.3%) participants had malignancies: Pancreatic head tumors 20 (27.8%), cholangiocarcinoma 13 (18.1%), duodenal cancers 5 (6.94%), and gall bladder cancer 4 (5.6%). The remaining 30 (41.7%) participants had benign etiologies: choledocholithiasis 10 (13.9%), biliary atresia 7 (9.7%), pancreatic pseudo cyst 6 (8.3%), Mirizzi syndrome 5 (6.9%) and 1 (1.4%) each of chronic pancreatitis and choledochal cyst. Sixty-seven (93.1%) patients presented with right upper quadrant tenderness, 65 (90.3%) abdominal pain and 55 (76.3%) clay-colored stool. Cholecystectomy 11 (25.6%) and cholecystojejunostomy + jejunojejunostomy 8 (18.6%) were the commonest procedures performed. Twelve (17.0%) of cases received chemotherapy (epirubicin/cisplatin/capecitabine) for pan creatic head tumors and (gemcitabine/oxaliplatine) for cholangiocarcinoma. Mortality rate was 29.2% in the study, of which malignancy carried the highest mortality 20 (95.24%). Conclusion: Malignancy was the main cause of EHOJ observed in more than half of the patients. Interventions aimed at early recognition and appropriate referral are key in this population to improve outcomes.