Prognostic model to predict postoperative acute kidney injury in patients undergoing major gastrointestinal surgery based on a national prospective observational cohort study.

Background: Acute illness, existing co-morbidities and surgical stress response can all contribute to postoperative acute kidney injury (AKI) in patients undergoing major gastrointestinal surgery. The aim of this study was prospectively to develop a pragmatic prognostic model to stratify patients according to risk of developing AKI after major gastrointestinal surgery. Methods: This prospective multicentre cohort study included consecutive adults undergoing elective or emergency gastrointestinal resection, liver resection or stoma reversal in 2-week blocks over a continuous 3-month period. The primary outcome was the rate of AKI within 7 days of surgery. Bootstrap stability was used to select clinically plausible risk factors into the model. Internal model validation was carried out by bootstrap validation. Results: A total of 4544 patients were included across 173 centres in the UK and Ireland. The overall rate of AKI was 14·2 per cent (646 of 4544) and the 30-day mortality rate was 1·8 per cent (84 of 4544). Stage 1 AKI was significantly associated with 30-day mortality (unadjusted odds ratio 7·61, 95 per cent c.i. 4·49 to 12·90; P < 0·001), with increasing odds of death with each AKI stage. Six variables were selected for inclusion in the prognostic model: age, sex, ASA grade, preoperative estimated glomerular filtration rate, planned open surgery and preoperative use of either an angiotensin-converting enzyme inhibitor or an angiotensin receptor blocker. Internal validation demonstrated good model discrimination (c-statistic 0·65). Discussion: Following major gastrointestinal surgery, AKI occurred in one in seven patients. This preoperative prognostic model identified patients at high risk of postoperative AKI. Validation in an independent data set is required to ensure generalizability

Investigating factors that influence the practice of exclusive breastfeeding among mothers in an urban general hospital in Ghana: a cross-sectional study

Abstract Background In Ghana, only 52% of mothers exclusively breastfeed their babies and the rate of increase has been steadily slow across all geographical areas of Ghana. The purpose of this study was to determine the various factors that influence exclusive breastfeeding (EBF) among mothers who visited the child welfare clinic at the Tema General Hospital, Accra, Ghana. Methodology This descriptive cross-sectional study was carried out at the Child Welfare Clinic of the Tema General Hospital, Accra, Ghana. A random sampling technique was used to recruit mothers with children between the ages of 6 months and 24 months attending the Child Welfare Clinic. Mothers were interviewed with the aid of a structured questionnaire. Results Out of the 222 of mothers interviewed, 68.8% of them exclusively breastfed their infants up to 6 months. Mothers who have good knowledge were more than 3 times (AOR = 3.484, 95% CI 1.200, 10.122, P = 0.022) likely to breastfeed their children exclusively. Those who had positive attitudes towards EBF were about 4 times (COR: 4.018, 95% = 1.444, 11.181, P = 0.008) more likely to exclusively breastfeed than those who had poor attitudes towards EBF. Also, mothers whose spouses complained about EBF were about 3 times (AOR: 2.655, 95% CI 0.620, 11.365, P = 0.018) at increased odds of not exclusively breastfeeding their babies. Conclusions High rate of EBF among mothers who visited the child welfare clinic was found. The mothers' level of knowledge and attitude towards EBF significantly influenced the 6 months of EBF. Spouses also showed a high influence on whether or not mothers should exclusively breastfeed their babies