Outcomes post Ozaki procedure among children with aortic valve disease at Jakaya Kikwete Cardiac Institute, Dar es Salaam, Tanzania: a retrospective descriptive study.

BACKGROUND: Aortic valve reconstruction using glutaraldehyde-treated autologous pericardium, also called Ozaki procedure, is a surgical procedure for patients with aortic valve disease. Gratifying results have been reported in adult patients, however, limited published data is available in paediatric population. This study looked at clinical characteristics and early outcomes of children who underwent Ozaki procedure at our Institute. METHODS: This was a retrospective descriptive study conducted on children who underwent aortic valve reconstruction at Jakaya Kikwete Cardiac Institute (JKCI) from January 2019 through December 2022. Medical records of these children were reviewed to extract data on demographics, clinical characteristics, redo surgical interventions and survival. RESULTS: A total of 10 children underwent Ozaki procedure during the study period. Eight children had severe aortic regurgitation while 2 had severe aortic stenosis preoperatively. All children had either none or trivial aortic regurgitation immediately after surgery. None of them had redone operations throughout the follow-up period. There was no in-hospital mortality, however, one child died one-year after surgery. The mean follow-up period was 1.6 years with the longest follow-up time of 4 years. CONCLUSION: Ozaki procedure showed encouraging early results among children with aortic valve disease who underwent surgical repair by this technique. Future studies with larger sample sizes and longer follow up periods to evaluate long-term results in this population are recommended.

Prevalence of anaemia and associated factors among preterm infants at six weeks chronological age at Muhimbili National Hospital, Dar es Salaam, Tanzania: a cross-sectional study.

Introduction: preterm infants are vulnerable to several medical complications including anaemia, a significant public health problem with consequences on neurodevelopment. This study looked at the magnitude of anaemia and its associated factors among preterm infants at 6 weeks chronological age in a paediatric clinic of Muhimbili National Hospital (MNH). Methods: this was a hospital based cross-sectional study conducted among preterm infants at 6 weeks chronological age attending follow-up clinic at MNH from October 2019 to March 2020. Parental interviews, medical records reviews and haemoglobin assessment was done during the clinic visits. Logistic regression was used to determine the association between studied factors and anaemia. Results: the proportion of preterm infants with anaemia at 6 weeks chronological age was 38.4% (142/370) with 74% of these infants having moderate anaemia. Morphological types of anaemia were normocytic (56.3%) and microcytic anaemia (4.9%). Two-thirds of preterm infants (62%) were on haematinics supplementation. Moderate preterm born at gestation age 32 to <34 weeks (OR=2.21, 95% CI 1.15-4.25, p=0.017), two or less phlebotomies (OR=2.3; 95% CI 1.23-4.30; P=0.010) and more than two phlebotomies (OR=7.2, 95% CI 3.62-14.16, p≤0.001) were significantly associated with anaemia. Conclusion: the proportion of preterm infants with anaemia at 6 weeks chronological age is high despite two-thirds being on haematinics supplementation. Moderate preterm and multiple phlebotomies significantly contributed to the occurrence of anaemia. Screening preterm infants for anaemia, appropriate management, and close follow-up are recommended to reduce its burden.

Late surgical ventricular septal defect closure in a low middle-income country setting: a case series.

BACKGROUND: Ventricular septal defect (VSD) is the commonest type of congenital heart lesion accounting for up to 40% of congenital heart defects. Well timed VSD closures are reported to yield excellent long-term outcomes. Late surgical VSD closures, particularly from the developing countries, are infrequently reported. CASE PRESENTATION: We report three cases of African children aged between 13 and 14 years who had late VSD presentations. They reported complaints of growth failure and recurrent respiratory infections since early infancy which necessitated frequent visits to primary health care facilities. They were found to have large ventricular septal defects by thoracic echocardiography. Diagnostic cardiac catheterization was done to all three patients to rule out irreversible pulmonary hypertension. After promising cardiac catheterization findings, they all underwent successful surgical VSD repair with good early outcomes. CONCLUSION: VSD surgical closure is ideal in children below 2 years, however, it can be done in children who present at advanced age despite being considered high risk patients. All three of our patients who presented late had successful surgical VSD repairs with promising immediate outcome. The role of genetics in the protection against developing irreversible pulmonary vascular disease in these patients is a possible area for future studies.

Authorship representation in global emergency medicine: a bibliometric analysis from 2016 to 2020.

INTRODUCTION: High-income country (HIC) authors are disproportionately represented in authorship bylines compared with those affiliated with low and middle-income countries (LMICs) in global health research. An assessment of authorship representation in the global emergency medicine (GEM) literature is lacking but may inform equitable academic collaborations in this relatively new field. METHODS: We conducted a bibliometric analysis of original research articles reporting studies conducted in LMICs from the annual GEM Literature Review from 2016 to 2020. Data extracted included study topic, journal, study country(s) and region, country income classification, author order, country(s) of authors' affiliations and funding sources. We compared the proportion of authors affiliated with each income bracket using Χ2 analysis. We conducted logistic regression to identify factors associated with first or last authorship affiliated with the study country. RESULTS: There were 14 113 authors in 1751 articles. Nearly half (45.5%) of the articles reported work conducted in lower middle-income countries (MICs), 23.6% in upper MICs, 22.5% in low-income countries (LICs). Authors affiliated with HICs were most represented (40.7%); 26.4% were affiliated with lower MICs, 17.4% with upper MICs, 10.3% with LICs and 5.1% with mixed affiliations. Among single-country studies, those without any local authors (8.7%) were most common among those conducted in LICs (14.4%). Only 31.0% of first authors and 21.3% of last authors were affiliated with LIC study countries. Studies in upper MICs (adjusted OR (aOR) 3.6, 95% CI 2.46 to 5.26) and those funded by the study country (aOR 2.94, 95% CI 2.05 to 4.20) had greater odds of having a local first author. CONCLUSIONS: There were significant disparities in authorship representation. Authors affiliated with HICs more commonly occupied the most prominent authorship positions. Recognising and addressing power imbalances in international, collaborative emergency medicine (EM) research is warranted. Innovative methods are needed to increase funding opportunities and other support for EM researchers in LMICs, particularly in LICs.

Traumatic hemifacial avulsion and degloving injury: a case report.

Gross maxillofacial injuries are challenging to manage because they can be complicated by airway obstruction, injuries to the cervical spine, and cranial structures. Deformities from such injuries have lasting psychological effects which if not addressed can be devastating. We present a 21-year-old male motorcyclist who was involved in a motor traffic collision and sustained avulsion and degloving of the forehead skin, left eyebrow, left upper and lower eyelids, the nose, the left cheek and part of the right cheek, upper and lower lips, and the skin overlying the chin. His airway was compromised; hence rapid sequence intubation was done to secure it. Thereafter single-stage primary reconstruction and repair were done. A multidisciplinary team approach involving different specialties yielded good outcomes for this patient's condition.

Clinical profile and mortality among adult patients presenting with altered mental status to the emergency departments of a tertiary hospital in Tanzania: a descriptive cohort study.

Introduction: Altered mental status (AMS) in the Emergency Department (ED) can be associated with morbidity and mortality. In high income countries, mortality rate is under 10% for patients presenting with AMS. There is a paucity of data on the profile and mortality amongst this group of patients in limited income countries. Methods: this was a prospective cohort study of adults ≥18 years presenting to the Emergency Departments of Muhimbili National Hospital (MNH) Upanga and Mloganzila in Tanzania with Altered Mental Status (AMS) unrelated to psychiatric illness or trauma, from August 2019 to February 2020. Patient demographic data, clinical profile, disposition and 7-day outcome were recorded. The outcome of mortality was summarized using descriptive statistics. Results: among 26,125 patients presenting during the study period, 2,311 (8.9%) patients had AMS and after exclusion for trauma and psychiatric etiology, 226 (9.8%) patients were included. The median age was 56 years (43-69 years) and 127 (56.2%) were male. Confusion 88 (38.9%) was the most common presenting symptom. Hypertension 121 (53.5%) was the most frequent associated comorbidity. The overall mortality was 80 (35.4%) within 7 days. Of 173 patients admitted to the wards, 54 (31.2%) died and of the 46 (20.4%) admitted to the intensive care unit (ICU), 20 (43.5%) died within 7 days. Six (2.7%) patients died in the emergency department. Conclusion: patients with AMS presenting to two EDs in Tanzania have substantially higher mortality than reported from Hospital Incident Command System (HICS). This could be due to underlying disease, comorbidities or management. Further research could help identify individual etiologies involved and high risk groups which can cater to better understanding this population.

Colon perforation by foreign body insertion for sexual gratification: a case report.

Occurrence of retained rectal foreign bodies with bowel perforation resulting from auto-eroticism is rare among males in Africa. Embarrassment attached to this condition may delay or derail acquisition of information and management. A 30-year-old male presented with abdominal pain and constipation for 3 days. Abdominal X-rays revealed free air-stripes under both hemidiaphragms and in the peripherals, a 25cm x 5.9cm lucent foreign body on the left side with proximal tapering. There was no evidence of intestinal obstruction. This was consistent with bowel perforation secondary to foreign body introduction. Exploratory laparotomy was performed, a plastic bottle of 250mls was removed from the colon. Transverse repair of a 10cm laceration extending from the rectum to the sigmoid was done and a colostomy placed. A high index of suspicion, a systematic approach and a lower threshold for imaging studies were key to successful management and favorable outcomes of this patient.