Pediatric brain tumor care in a Sub-Saharan setting: current poise of a precariously loaded dice.

OBJECTIVE: To evaluate the current status of pediatric brain tumor (PBT) care and identify determinants and profiles of survival and school attendance. METHODS: An 8-year institution-based prospective longitudinal study. All cases investigated with neuroimaging and treated were enrolled. Data was analyzed with SPSS (Inc) Chicago IL, USA version 23. Chi Square test, One-way ANOVA and confidence limits were used to evaluate associations at the 95% level of significance. Ethical approval for our study was obtained Health Research Ethics Committee of our hospital. RESULTS: Among 103 patients enrolled, 92 satisfied our study criteria. There were 45 males and 39 females, M: F = 0.8. The mean age was 9.5 ± 2.1 years 95%CI with a range of 7 months to 16 years. The most common symptom was headache for supratentorial lesions (73%) and gait disturbance (80.2%) for infratentorial lesions. More tumors were supratentorial in location 51 (55.4%), 35 (38.1%) were infratentorial and 6 (6.5%) were transtentorial. Craniopharyngiomas (n = 23), medulloblastomas (n = 22) and astrocytomas (n = 15) were the most common tumors. Hemoglobin genotype (AA and AS) had some influence on tumor phenotype FT, P = 0.033. 76 cases were microsurgically resected while 16 patients were treated with radiotherapy alone. The 30-day mortality for operated cases is 7.2 ± 0.7%. Overall 1-year and 5-year survival was 66.7 and 52.3%, respectively. School attendance, performance and outcome varied among treatment subgroups. CONCLUSION: Survival profile in this series suggests some improvement in comparison to previous studies from our region, Hemoglobin genotype profiles may signature paediatric brain tumor phenotypes in our setting.

Improving capacity and access to neurosurgery in sub-Saharan Africa using a twinning paradigm pioneered by the Swedish African Neurosurgical Collaboration.

BACKGROUND: The unmet need for neurosurgery in sub-Saharan Africa is staggering. Resolving this requires strategies that synergize salient local resources with tailored foreign help. This study is a trial of a twinning model adopted by the Swedish African Neurosurgical Collaboration (SANC). METHODS: A multi-step neurosurgical twinning technique, International Neurosurgical Twinning Modeled for Africa (INTIMA), developed through a collaboration between African and Swedish neurosurgical teams was adopted for a neurosurgical mission in March 2019. The pioneering steps are evaluated together with data of treated patients prospectively acquired using SPSS Chicago Inc., Version 23. Associations were analyzed using chi-square tests, while inferences were evaluated at 95% level of significance. RESULTS: The SANC global neurosurgery mission targeted microsurgical brain tumor resection. Fifty-five patients were operated on during the mission and subsequent 3 months. Patients' ages ranged from 3 months to 69 years with a mean of 30.6 ± 2.1 years 95% CL. Seven cases were performed during the first mission, while 48 were performed after the mission. Compared to 3 months before SANC when only 9 brain tumors were resected, more tumors were resected (n = 25) within the 3 consecutive months from the mission (X2 = 14.2, DF = 1, P = 0.000). Thirty-day mortality following tumor resection was also lower, X2 = 4.8, DF = 1, P = 0.028. CONCLUSION: Improvements in capacity and short-term outcome define our initial pioneering application of a neurosurgical twinning paradigm pioneered by SANC.

Effect of cardia banding and improved anaesthetic care on outcome of oesophageal atresia in a developing country.

We comparatively analysed cases of oesophageal atresia (OA) managed in Enugu, south-eastern Nigeria from October 2010 to September 2015 to evaluate our short-term outcome with management following incorporation of temporary cardia banding to gastrostomy for late presenting cases and improved anaesthesia in 2013. Overall, 19 cases were analysed. The clinical parameters did not differ in the cases managed before (Group A) and after (Group B) these introductions. Four (21.1%) cases had primary repair (2 per group), six (31.6%) had delayed primary repair after treatment of pneumonitis (Group A 5; Group B 1) and nine (47.3%) had delayed primary repair after gastrostomy (Group A 4; Group B 5). Anaesthesia-related mortality dropped from 53.8 to 7.7% and survival improved from 9.1 to 62.5% following the introductions. Despite persisting barriers to care, outcome of OA in our setting may improve with better anaesthesia and incorporation of temporary cardia banding to gastrostomy.

Neonatal surgery in a developing country: Outcome of co-ordinated interdisciplinary collaboration.

AIM: Neonatal surgery in low-income and middle-income countries has a poorer outcome when compared with high-income countries. This study evaluated the management challenges and outcomes of neonatal surgery before and after the introduction of focused interdisciplinary team management in 2013. METHODS: We retrospectively analysed neonatal surgery undertaken at two referral hospitals in Enugu, south-eastern Nigeria from January 2011 to November 2015. Cases managed prior to July 2013 (group A) were compared with those managed from July 2013 (group B). RESULTS: There were 91 cases (group A, 47; group B, 44). The common neonatal conditions were oesophageal atresia (21), anorectal malformation (18) and intestinal atresia (18). The surgical conditions, birthweight, age at presentation and associated anomalies did not differ in the two groups. The treatment was also similar except in oesophageal atresia, where cardiac banding was added to the temporary gastrostomy in late presenting cases with undernutrition in group B. Postoperative complications occurred in 43 (47.3%) cases (group A, 55.3%; group B, 38.6%; P > 0.05), and the overall mortality was 33 (35.3%: group A, 48.9%; group B, 22.7%: P < 0.05). Causes of mortality were unremitting sepsis (group A, 11; group B, 5), anaesthesia complications (group A, 5; group B, 0) and respiratory complication (group A, 7; group B, 5). Delayed presentation, inadequate facilities and defective health insurance scheme were challenges in the two groups. CONCLUSION: Despite the persisting challenges, co-ordinated team management may result in the modest improvement of outcomes of neonatal surgery in our setting. Addressing these challenges may further improve outcomes.

Neonatal surgery in Africa: a systematic review and meta-analysis of challenges of management and outcome.

BACKGROUND: Advances in diagnostic techniques and perioperative care have greatly improved the outcome of neonatal surgery. Despite this, disparity still exists in the outcome of neonatal surgery between high-income countries and low-income and middle-income countries. This study reviews publications on neonatal surgery in Africa over 20 years with a focus on challenges of management, trends in outcome, and potential interventions to improve outcome. METHODS: We did a literature review by searching PubMed and African Index Medicus for original articles published in any language between January, 1995, and September, 2014, with the search terms "neonatal surgery" and "Africa", further supplemented by "(surgery OR anaesthesia) AND (neonatal OR newborn) AND (developing countries OR Africa)". A data extraction sheet was used to collect information, including type of study, demographics, number of cases, outcome, challenges, and suggestions to improve outcome. For the meta-analysis, data were analysed by χ(2) test or Student's t-test as appropriate. In all, the significance level was set to p<0·05. FINDINGS: We identified 859 published papers, of which 51 studies from 11 countries met the inclusion criteria. The 16 studies in the first 10 years (before 2005; group A) were compared with the 35 in the last 10 years (2005-14; group B). Nigeria (n=32; 62·7%), South Africa (n=7; 13·7%), Tanzania (n=2; 3·9%), and Tunisia (n=2; 3·9%) were the predominant source of the publications, of which were retrospective in 38 (74·5%) studies and prospective in 13 (25·5%) studies. The mean sample size of the studies was 97·8 (range 5-640). Overall, 4989 neonates were studied, with median age of 6 days (range 1-30). Common neonatal conditions reported were intestinal atresia in 28 (54·9%) studies, abdominal wall defects in 27 (52·9%), anorectal malformations in 24 (47·1%), and Hirschsprung's disease, necrotising enterocolitis, and volvulus neonatorum in 23 (45·1%) each. Mortality was lowest (<3%) in spina bifida and facial cleft procedures, and highest (>50%) in emergency neonatal surgeries involving bowel perforation, bowel resection, congenital diaphragmatic hernia, oesophageal atresia, and ruptured omphalocele or gastroschisis. Overall average mortality rate was higher in group A than in group B (36·9% vs 29·1%; p<0·001), but mortality did not vary between the groups for similar neonatal conditions. The major documented challenges were delayed presentation and inadequate facilities in 39 (76·5%) studies, dearth of trained support personnel in 32 (62·7%), and absence of neonatal intensive care in 29 (56·9%). The challenges varied from country to country but did not differ in the two groups. INTERPRETATION: Improvement has been achieved in outcomes of neonatal surgery in Africa in the past two decades, although several of the studies reviewed are retrospective and poorly designed. Cost-effective adaptations for neonatal intensive care, improved health-care funding, coordinated neonatal surgical care via regional centres, and collaboration with international partners are potential interventions that could help to address the challenges and further improve outcome. FUNDING: None.

Challenges of management and outcome of neonatal surgery in Africa: a systematic review.

BACKGROUND: Disparity still exists in the outcome of neonatal surgery between high-income countries and low-income and middle-income countries. This study reviews publications on neonatal surgery in Africa over 20 years with a focus on challenges of management, trends in outcome, and potential interventions to improve outcome. METHODS: We did a literature review by searching PubMed and African Index Medicus for original articles published in any language between January 1995 and September 2014. A data extraction sheet was used to collect information, including type of study, demographics, number of cases, outcome, challenges, and suggestions to improve outcome. RESULTS: A total of 51 studies from 11 countries met the inclusion criteria. The 16 studies in the first 10 years (1995-2004; group A) were compared with the 35 in the last 10 years (2005-2014; group B). Nigeria (n = 32; 62.7 %), South Africa (n = 7; 13.7 %), Tanzania (n = 2; 3.9 %), and Tunisia (n = 2; 3.9 %) were the predominant sources of the publications, which were retrospective in 38 (74.5 %) studies and prospective in 13 (25.5 %) studies. The mean sample size of the studies was 95.1 (range 5-640). Overall, 4849 neonates were studied, with median age of 6 days (range 1-30 days). Common neonatal conditions reported were intestinal atresia in 28 (54.9 %) studies, abdominal wall defects in 27 (52.9 %), anorectal malformations 25 in (49.0 %), and Hirschsprung's disease, necrotising enterocolitis, and volvulus neonatorum in 23 (45.1 %) each. Mortality was lowest (<3 %) in spina bifida and facial cleft procedures, and highest (>50 %) in emergency neonatal surgeries involving bowel perforation, bowel resection, congenital diaphragmatic hernia, oesophageal atresia, and ruptured omphalocele or gastroschisis. Overall average mortality rate was higher in group A than group B (36.9 vs 29.1 %; p < 0.001), and varied between the groups for some conditions. The major documented challenges were delayed presentation and inadequate facilities in 39 (76.5 %) studies, dearth of trained support personnel in 32 (62.7 %), and absence of neonatal intensive care in 29 (56.9 %). The challenges varied from country to country but did not differ in the two groups. CONCLUSION: Improvement has been achieved in outcomes of neonatal surgery in Africa in the past two decades, although several of the studies reviewed are retrospective and poorly designed. Cost effective adaptations for neonatal intensive care, improved health-care funding, coordinated neonatal surgical care via regional centres, and collaboration with international partners are potential interventions that could help to address the challenges and further improve outcome.

Phaeochromocytoma in a 20-year-old Nigerian, resolving the dilemma of benignity or malignancy.

Pheochromocytomas are rare tumors that present a diagnostic challenge in developing countries. They occur in the adrenal gland and as paragangliomas along the sympathetic chain. Clinical features are usually those of sustained or paroxysmal hypertension and complications thereof. Surgical extirpation remains the mainstay of treatment and is greatly facilitated by accurate pre-operative tumor localization. Pre-operative medical management with antihypertensive medication has led to significant reductions in peri-operative mortality. Determination of malignancy is difficult in the absence of obvious metastases. We present a case of left adrenal phechromocytoma that was stabilized. Adrenalectomy had a good outcome and the patient has so far been followed up for a year.

A retrospective study of the outcome of cesarean section for women with severe pre-eclampsia in a third world setting.

OBJECTIVE: To compare the outcome of subarachnoid block (spinal anesthesia) and general anesthesia in Cesarean delivery for women with severe pre-eclampsia. METHODS: A retrospective study of women with severe pre-eclampsia requiring Cesarean section from January 2005 to June 2009 was carried out. Maternal age, parity, gestational age at delivery, booking status, Apgar scores, maternal and perinatal mortality of the sub-arachnoid block group were compared with those of general anesthesia group using χ(2), Student t-test and Fischer exact test. RESULTS: There were no significant difference between the two groups in overall maternal mortality (5.4% vs. 11.9%, P=0.5) and perinatal mortality (2.7% vs. 11.9%, P=0.15). The general anesthesia group had significantly more birth asphyxia than the spinal group (55.9% vs. 27.0%, P=0.0006). CONCLUSION: There was no significant difference in the maternal and perinatal mortality outcome of cesarean delivery between women with severe pre-eclampsia who had regional anesthesia and those that had general anesthesia. There was significantly higher proportion of birth asphyxia in babies of women who received general anesthesia.