Use of exchange blood transfusion in the management of severe COVID-19 infection in pregnancy: experience from Lagos, Nigeria.

Coronavirus disease 2019 (COVID-19) presents with symptoms that may be mild or severe. The individual with the severe form of the disease usually presents with a constellation of respiratory symptoms typical of acute respiratory distress syndrome. In this report, we present our experience of the successful management of an oxygen-dependent pregnant woman with severe COVID-19 infection who had 2 sessions of partial exchange blood transfusion. We discussed the principles that informed this intervention and the need to adopt this novel approach in the care of severe COVID-19 infection.

A Comparison of the Effect of Isoflurane and Propofol on Liver Enzymes.

Background: Isoflurane and propofol are routinely used for the maintenance of general anaesthesia. However, recently, they have been implicated in hepatotoxicity resulting in acute liver failure. Objective: We compared the effects of isoflurane and propofol on liver enzymes; aspartate transaminases (AST), alanine transaminases (ALT), alkaline phosphatase (ALP) and total bilirubin (Tbil) following general anaesthesia. Materials and Methods: This randomized, controlled clinical trial involved 60 ASA I and II patients aged 18-64 years scheduled for elective surgery requiring general anaesthesia. Anaesthesia was induced with intravenous sodium thiopentone 5 mg/kg and atracurium 0.5 mg/kg, and maintained in group I with isoflurane (MAC, 0.8%-1.5%) and in group P with (propofol infusion, 100-200µg/kg/minute). Blood samples were taken pre-induction, immediate- and 24 hours post operatively. The serum levels of AST, ALT, ALP, Tbil were analyzed and compared in both groups. Risk factors for post operative hepatotoxicity were determined. Result: Propofol caused a significant reduction in ALP (P = 0.005) but increase in Tbil (P = 0.010) 24 hours postoperatively. Though isoflurane had consistently higher values of AST, ALP and Tbil than propofol, only the mean AST values at 24 hours post-operative was significantly higher (P = 0.045). There was a significant increase in the 24 hours post-operative Tbil following massive blood loss; [odd ratio 23.91, 95%, CI (1.685-339.315)], P = 0.019. Conclusion: Both agents had a varied effect on liver enzymes. Isoflurane resulted in a significantly higher increase in 24 hours post-operative serum AST than propofol. Propofol caused a significant increase in 24 hours post-operative total bilirubin. Caution is therefore recommended in their use in patients with altered liver enzymes.

Nigerian surgical outcomes - Report of a 7-day prospective cohort study and external validation of the African surgical outcomes study surgical risk calculator.

BACKGROUND: Surgical outcomes study for individual nations remains important because of international differences in patterns of surgical disease. We aimed to contribute to data on post-operative complications, critical care admissions and mortality following elective surgery in Nigeria and also validate the African Surgical Outcomes Study (ASOS) surgical risk calculator in our adult patient cohort. MATERIALS AND METHODS: We conducted a 7-day, national prospective observational cohort study in consented consecutive patients undergoing elective surgery with a planned overnight hospital stay following elective surgery during a seven-day study period. The outcome measures were in-hospital postoperative complications, critical care admissions and in-hospital mortality censored at 30 days. Also, we identified variables which significantly contributed to higher ASOS surgical risk score. External validation was performed using area under the receiver operating characteristic curve (ROC) for discrimination assessment and Hosmer-Lemeshow test for calibration. RESULTS: A total of 1,425 patients from 79 hospitals participated in the study. Postoperative complications occurred in 264(18.5%, 95% CI 16.6-20.6), 20(7.6%) of whom were admitted into the ICU and 16(6.0%) did not survive. Total ICU admission was 57 (4%), with mortality rate of 23.5% following planned admission and overall in-hospital death was 22(1.5%, 95% CI 0.9-2.2). All prognostic factors in the ASOS risk calculator were significantly associated with higher ASOS score and the scoring system showed moderate discrimination (0⋅73, 95% CI 0.62-0.83). Hosmer-Lemeshow χ2 test revealed scale was well calibrated in the validation cohort. CONCLUSION: NiSOS validates the findings of ASOS and the ability of the ASOS surgical risk calculator to predict risk of developing severe postoperative complications and mortality. We identified failure-to-rescue as a problem in Nigeria. Furthermore, this study has provided policy makers with benchmarks that can be used to monitor programmes aimed at reducing the morbidity and mortality after elective surgery. We recommend the adoption of the ASOS surgical risk calculator as a tool for risk stratification preoperatively for elective surgery.

Transabdominal repair of vesicovaginal fistulae: A 10-year tertiary care hospital experience in Nigeria.

BACKGROUND: Vesicovaginal fistula (VVF) is still a major cause for concern in many developing countries. Arguments continue as to the best approach for repair. This study aimed to present our experience with transabdominal VVF repair. SUBJECTS AND METHODS: This was a 10-year retrospective review of transabdominal VVF repair. Important data extracted from the case notes included patients' demography, aetiology, previous repair, operative findings, procedures and treatment outcome. Data were analysed using SPSS version 21. Bivariate analysis of factors affecting treatment outcome was carried out with the level of significance set at P < 0.05. RESULTS: Fifty-three VVF repairs were carried out in 51 patients. Mean age was 29.8 ± 15.4 years. Forty-five (84.9%) had previous repairs. The aetiologies of VVFs were prolonged obstructed labour in 41 (80.4%) and post-operative in 10 (19.6%). Forty-one repairs were through a transperitoneal transvesical approach whereas 12 had an extraperitoneal transvesical approach. The fistulae diameter ranged from 0.3 to 2.8 cm with an average of 1.64 cm. Six had ureteric re-implantation; (bilateral in two patients). Repair was successful in 47 (88.7%) cases, which translated to the overall success rate of 92.1% in the 51 patients treated. Success rate was higher (95.6%) for the subset of patients who had previous transvaginal repairs. Catheter blockage in the post-operative period was a significant factor that had effect on outcome (P < 0.015). CONCLUSION: Transabdominal repair recorded an excellent result in patients who had previously failed transvaginal repairs and may be considered as the first option in these patients.

Combined intrarectal lidocaine gel and periprostatic nerve block: A 'balanced' anaesthesia for transrectal ultrasound-guided prostate biopsy?

BACKGROUND AND AIM: Periprostatic nerve block (PNB) which appears to be the gold standard for pain relief during transrectal ultrasound-guided prostate (TrusP) biopsy has been proven to be lacking in providing satisfactory anaesthesia during transrectal ultrasound (Trus) probe insertion into the anorectum necessitating the addition of another technique to produce a 'balanced' anaesthesia. The aim of this study was to determine whether combined intrarectal lidocaine gel and periprostatic nerve block (cGPNB) will provide adequate anaesthesia at all stages of TrusP compared with caudal block (CB). PATIENTS AND METHODS: Data were prospectively collected from patients with indications for TrusP who were randomly assigned to either cGPNB (Group A) or CB (Group B). Comparative analysis of the numerical rating pain score (NRS) between two groups was done after administration of anaesthesia, Trus probe insertion, biopsy needle puncture of the prostate and 1 h after biopsy. RESULTS: There were 56 patients in Group A and 53 in Group B. There was no significant difference in NRS grouping between the two arms of the study after administration of anaesthesia (P = 0.93), biopsy needle puncture of the prostate (P = 0.28) and 1 h after the procedure (P = 0.39). There was no statistically significant difference in the number of patients with no/mild pain between the two arms of the study during probe insertion (P = 0.65). None of the patients in both arms of the study had severe pain. Across Group A and B, 35 (62.5%) versus 40 (75.5%), 20 (35.7%) versus 11 (20.8%) and 1 (1.8%) versus 2 (3.8%) adjudged the procedure as very tolerable, fairly tolerable and intolerable respectively (P = 0.20). All the patients in Group A versus 49 (92.5%) in Group B will choose the same anaesthesia for subsequent biopsies (P = 0.11). CONCLUSIONS: cGPNB provides balanced anaesthesia at all stages of TrusP with excellent patient tolerability.

Neonatal burns in Lagos, South-Western Nigeria: Epidemiology and outcome of management.

BACKGROUND: Burns in the neonate are rare and result mostly from iatrogenic sources in developed countries. The socioeconomic settings of developing countries are different from those in the developed countries. A review of the epidemiology and management of burns in the neonates in Lagos, Nigeria is presented. METHODS: The case notes of burns in patients less than 29 days-old from 2004 to 2008 in 4 tertiary health institutions in Lagos were retrieved from the Medical Records Department; necessary data were extracted and analyzed. RESULTS: There were 21 neonates with burns within the study period. The incidence of neonatal burns ranged between 0.5 and 2.5%/year. The mean age was 16.38 ± 1.84 days and the mean BSA of 26.00 ± 5.53%. The etiology of burns was thermal in 19(90.5%) and chemical in 2(9.5%). Hypokalemia was common at early stages of their treatment. Burns were sustained at home in 90.5% of the cases. The mortality rate was 43.5%. Inhalation and thermal injuries were associated with most of the deaths. CONCLUSION: Domestic incidents from flames are the commonest causes of neonatal burns in the study environment. These are associated with prolonged morbidity and high mortality rate. Health education, highlighting methods of prevention should be undertaken in the community. Well equipped burn centers should be established to treat burns in all age groups.