Peri-operative SARS-CoV-2 infection increases postoperative mortality. The aim of this study was to determine the optimal duration of planned delay before surgery in patients who have had SARS-CoV-2 infection. This international, multicentre, prospective cohort study included patients undergoing elective or emergency surgery during October 2020. Surgical patients with pre-operative SARS-CoV-2 infection were compared with those without previous SARS-CoV-2 infection. The primary outcome measure was 30-day postoperative mortality. Logistic regression models were used to calculate adjusted 30-day mortality rates stratified by time from diagnosis of SARS-CoV-2 infection to surgery. Among 140,231 patients (116 countries), 3127 patients (2.2%) had a pre-operative SARS-CoV-2 diagnosis. Adjusted 30-day mortality in patients without SARS-CoV-2 infection was 1.5% (95%CI 1.4-1.5). In patients with a pre-operative SARS-CoV-2 diagnosis, mortality was increased in patients having surgery within 0-2 weeks, 3-4 weeks and 5-6 weeks of the diagnosis (odds ratio (95%CI) 4.1 (3.3-4.8), 3.9 (2.6-5.1) and 3.6 (2.0-5.2), respectively). Surgery performed ≥ 7 weeks after SARS-CoV-2 diagnosis was associated with a similar mortality risk to baseline (odds ratio (95%CI) 1.5 (0.9-2.1)). After a ≥ 7 week delay in undertaking surgery following SARS-CoV-2 infection, patients with ongoing symptoms had a higher mortality than patients whose symptoms had resolved or who had been asymptomatic (6.0% (95%CI 3.2-8.7) vs. 2.4% (95%CI 1.4-3.4) vs. 1.3% (95%CI 0.6-2.0), respectively). Where possible, surgery should be delayed for at least 7 weeks following SARS-CoV-2 infection. Patients with ongoing symptoms ≥ 7 weeks from diagnosis may benefit from further delay.

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SARS-CoV-2 has been associated with an increased rate of venous thromboembolism in critically ill patients. Since surgical patients are already at higher risk of venous thromboembolism than general populations, this study aimed to determine if patients with peri-operative or prior SARS-CoV-2 were at further increased risk of venous thromboembolism. We conducted a planned sub-study and analysis from an international, multicentre, prospective cohort study of elective and emergency patients undergoing surgery during October 2020. Patients from all surgical specialties were included. The primary outcome measure was venous thromboembolism (pulmonary embolism or deep vein thrombosis) within 30 days of surgery. SARS-CoV-2 diagnosis was defined as peri-operative (7 days before to 30 days after surgery); recent (1-6 weeks before surgery); previous (≥7 weeks before surgery); or none. Information on prophylaxis regimens or pre-operative anti-coagulation for baseline comorbidities was not available. Postoperative venous thromboembolism rate was 0.5% (666/123,591) in patients without SARS-CoV-2; 2.2% (50/2317) in patients with peri-operative SARS-CoV-2; 1.6% (15/953) in patients with recent SARS-CoV-2; and 1.0% (11/1148) in patients with previous SARS-CoV-2. After adjustment for confounding factors, patients with peri-operative (adjusted odds ratio 1.5 (95%CI 1.1-2.0)) and recent SARS-CoV-2 (1.9 (95%CI 1.2-3.3)) remained at higher risk of venous thromboembolism, with a borderline finding in previous SARS-CoV-2 (1.7 (95%CI 0.9-3.0)). Overall, venous thromboembolism was independently associated with 30-day mortality ). In patients with SARS-CoV-2, mortality without venous thromboembolism was 7.4% (319/4342) and with venous thromboembolism was 40.8% (31/76). Patients undergoing surgery with peri-operative or recent SARS-CoV-2 appear to be at increased risk of postoperative venous thromboembolism compared with patients with no history of SARS-CoV-2 infection. Optimal venous thromboembolism prophylaxis and treatment are unknown in this cohort of patients, and these data should be interpreted accordingly.

Background: Intestinal obstruction in children is a very common cause of admission in hospitals with usually a high mortality andmorbidity rate. There is a geographical variability in patterns of intestinal obstruction in pediatric population around the globe.Objectives: To evaluate patterns of presentation and surgical outcome of pediatric intestinal obstruction in Pakistan.Material and Methods: A prospective observational study with non-probability sampling technique was done in the departmentPediatric Surgery (East Surgical Unit), The Children's Hospital, Pakistan Institute of Medical Sciences (PIMS), Islamabad,Pakistan, from January to December 2017. Operated cases of intestinal obstruction from 1 day to 12 years were included. Age,patterns of presentation, sign and symptoms, surgical intervention, complications, outcome and correlation between variableswere studied.Results: Total cases were 316 (231 males, 85 females). Congenital Causes of intestinal obstruction in descending order wereAnorectal Malformations(75),Jejuno-Ileal Atresia(28), Hirschsprung Disease(27), Meckel's Diverticulum(17), DuodenalAtresia(16), Malrotation(12), Meconium Ileus(11), Midgut Volvulus(8), Mesenteric cyst(1) and Rectal Atresia(1).Acquired causeswere Intussusception(40), Perforated Appendix(20), Infantile Hypertrophic Pyloric Stenosis(14), Band Obstruction(12), BluntAbdominal Trauma(10), Obstructed Inguinal hernia (9), Worm infestation(9), Enteric Perforation(3), Necrotizing Enterocolitis(3).The overall mortality rate was 3.5% and postoperative complications rate was 40.8%. Statistically significant relationship wasfound between Age and post operative complications (P=0.048), Age and outcome (P=0.002) and between post operativecomplications and outcome (p<0.001).Conclusions: Causes of intestinal obstruction vary according to the age and geographical area. Accurate and timely diagnosis ofthe cause of intestinal obstruction along with prevention and treatment of sepsis can reduce morbidity and mortality.Key words: Intestinal obstruction; Children; Congenital; Acquired Causes; Neonate; Pakistan

She was diagnosed as a case of nephrotic syndrome associated with primary hypothyroidism. She had short stature and was malnourished, but had no family history of hypothyroidism or renal diseases. She also had no consanguinity. She was treated with oral steroid and levothyroxin associated with nutritional support. Her condition improved with the treatment. At regular follow up her height and nutritional status was improved. Though hypothyroidism may be associated with nephrotic syndrome, it should be carefully evaluated.