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.

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.

Summary:Purpose: To investigate the risk of illnesses in a cohort of patients with epilepsy and in matched nonepilepsy controls, by type and complications.Methods: A total of 951 children and adults with idiopathic, cryptogenic, or remote symptomatic epilepsy and 904 matched controls seen in secondary and tertiary centers in eight European countries (England, Estonia, Germany, Italy, the Netherlands, Portugal, Russia, Slovenia) were followed prospectively for 17,484 and 17,206 person-months and asked to report any spontaneous complaint requiring medical attention (illness), its type and complications (hospitalization, absence from work or school, medical action). Risk assessment was done by actuarial methods, relative risks (RR), and 95% confidence intervals (CIs).Results: During the study period 644 patients (68%) and 504 controls (56%) reported an illness (p < 0.0001); 30% were seizure related. The cumulative probability of illness at 12 and 24 months was 49 and 86% in the cases and 39 and 75% in the controls (p < 0.0001). The largest differences regarded disorders affecting the nervous system (NS) (RR, 3.3; 95% CI, 2.3-4.2) and ear, nose, and throat (ENT) (RR, 1.3; 95% CI, 1.0-1.6). In patients with epilepsy, an NS illness was more likely to be followed by hospital admission, work absence, or medical intervention. All risks were significantly reduced after excluding seizure-related events.Conclusions: Patients with epilepsy are at higher risk of NS and ENT illnesses and complications than the general population. However, the risk of illness is significantly reduced when seizure-related events are excluded. Key Words: EpilepsyMorbidity-Illnesses.Patients with epilepsy have been thought to have a higher risk of illness than the general population, but comorbidity in epilepsy has been investigated in few population-based prevalence or analytic studies. Other clinical conditions and disabilities were reported by 47% of adults with epilepsy in Sweden, with psychiatric, cardiovascular, pulmonary, systemic, and renal diseases in decreasing order (1). Lifetime mental and gastric disorders were reported by 7 and 3% of adults with childhoodonset epilepsy in the Czech Republic (2). In Finland, somatic comorbidity was found in 84-95% of patients with childhood-onset epilepsy and 67-74% of controls (3). In a multicenter European cohort study of children and adults with idiopathic, cryptogenic, or remote symptomatic epilepsy, we found one or more illnesses at entry in 30% of cases compared with 17% of age-and sex-matched controls (4).These contrasting results may be explained by differences in the study populations and in the study design and methods. In addition, the morbidity risk attributable Accepted September 14, 2003. Address correspondence and reprint requests to Dr. E. Beghi at Istituto di Ricerche Farmacologiche "Mario Negri," Via Eritrea 62, 20157 Milano, Italy. E-mail: beghi@marionegri.it to the disease cannot be explored in studies on the prevalence of other clinical conditions in epilepsy. For these reasons, i...

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