Preoperative aspirin increases the risk for postoperative bleeding. However, this did not result in an increased need for chest re-exploration and did not increase the rates of PRBC transfusion when preoperative low-dose (≤160 mg/d) aspirin was administered. Aspirin at any dose is associated with decreased mortality and AKI and low-dose aspirin (≤160 mg/d) decreases the incidence of perioperative MI.

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A best evidence topic in cardiac surgery was written according to a structured protocol. The question addressed was whether thoracoscopic patent ductus arteriosus (PDA) closure is superior to conventional surgery. Altogether 821 papers were found using the reported search, 11 of which represented the best evidence to answer the clinical question. The authors, journal, date and country of publication, patient group studied, study type, relevant outcomes and results of these papers are tabulated. Eleven studies included in the analysis consisted of two prospective and three retrospective, non-randomized studies and six case series. Four included studies focused only on preterm infants, three studies enrolled neonates and the other four analysed all age groups from neonates to older children or young adults. There were no differences in mortality between video-assisted thoracoscopic surgery (VATS) and conventional surgery. Two studies suggested that VATS offers shorter operative times. Two papers observed shorter hospital stay, although the other two noted no significant difference. A large prospective trial found VATS to be associated with a lower number of postoperative complications in neonates and infants, whereas other studies suggested no significant differences in short-term postoperative complications. There is little evidence to suggest better musculoskeletal status and cosmesis in neonates following VATS. Conversion from thoracoscopy to thoracotomy described in six papers was seldom and it did not lead to any additional complications. All observational studies confirmed that both techniques are free from major adverse cardiovascular complications and these two techniques can be safely used in all patients qualified for surgical PDA closure. Two studies compared cost-effectiveness between the two techniques; one of them described VATS as significantly more cost-efficient, whereas the other study observed no difference. However, it should be noted that data were provided from different countries and time periods. The results presented suggest that there are no significant differences in early clinical outcomes between VATS and thoracotomy in all age groups. However, where differences have been shown, such as pain, postoperative complications, length of hospital and ICU stay and cost, these favour the VATS approach.