[Thoracoscopic clipping of patent ductus arteriosus: position of surgery in the era of transcatheter procedures]. / Torakoskopicheskoe klipirovanie otkrytogo arterial'nogo protoka: mesto khirurgii v épokhu transkateternykh tekhnologii.

AIM: To describe single-center evolution of the procedure and to evaluate the results of thoracoscopic clipping of patent ductus arteriosus (PDA) with diameter over 3,0 mm in term infants weighting over 4,0 kg. MATERIAL AND METHODS: Thoracoscopic clipping of PDA has been performed in 140 patients for the period from March 2012 to March 2018 in Meshalkin National Medical Research Center. Mean age was 4.0 years (range 3 months - 13 years), mean body mass index - 15.4±2.2 kg/m2. INCLUSION CRITERIA: PDA size 3.5-10 mm, Qp/Qs >1,3/1,0, weight 4.0-40 kg. Mean PDA size was 4.6±0.9 mm (range 3.5-8.0 mm), mean pulmonary artery pressure - 34.3±5.8 mm Hg, mean systemic/pulmonary flow Qp/Qs - 1.6±0.3. All patients underwent successful PDA closure through four-port technique under endotracheal general anesthesia and no need for pleural drainage. RESULTS: Mean procedure time was 24.5±15.5 min. In 29 (20,7%) cases we used titanium clips, in 11 (79.3%) - polymer locking ligating clips. There was 1 conversion to mini-thoracotomy. There were no deaths, bleeding or any other life-threatening complications. 94 (67.1%) patients were weaned from ventilator within operating theatre, in other 46 (32.9%) patients mean ventilation time in ICU was 1.3±1.0 hours. In-hospital postoperative complications: pneumothorax - 2 (1.4%) cases, recurrent laryngeal nerve dysfunction - 1 (0.7%), false croup - 1 (0.7%). There were 2 residual leakages in 2 (1.4%) patients in 10 and 6 months after titanium clip deployment. Both of them underwent transcatheter closure using the coil. Considering these cases all following patients underwent PDA closure by polymer locking ligating clips with no cases of residual leakage. CONCLUSION: Thoracoscopic PDA closure by polymer locking ligating clip is safe and effective technique for surgical management of PDA with diameter over 3.0 mm in term infants weighting over 4.0 kg.

[Robot-assisted atrial septal defect closure in adults: first experience in Russia]. / Robot-assistirovannoe zakrytie defekta mezhpredserdnoi peregorodki u vzroslykh: pervyi opyt v Rossii.

AIM: To analyze immediate results of minimally invasive robot-assisted atrial septal defect (ASD) closure in adults. MATERIAL AND METHODS: For the period from March 2012 to November 2016 sixty patients with contraindications to endovascular procedure have undergone robot-assisted atrial septal defect closure at Meshalkin Siberian Federal Biomedical Research Center. Mean age was 34.5±11.3 years, body mass index - 24.6±4.0 kg/m2. 48 (80%) patients had NYHA class II before surgery. In 37 (61.7%) patients isolated ASD with deficiency or absence of one edge was diagnosed, isolated ASD with primary septum aneurysm - in 16 (26.7%) cases, 7 (11.6%) patients had reticulate ASD. 5 (8.3%) patients had concomitant tricuspid valve insufficiency required surgical repair (suture annuloplasty). All operations were performed under cardiopulmonary bypass with peripheral cannulation. Right-sided anterolateral mini-thoracotomy was used in the first 43 patients. Following 17 patients underwent completely endoscopic procedure. Depending on the shape, size and anatomical features of the defect we performed suturing (14 patients, 23.3%) or repair with xenopericardial patch (46%, 76.6%). RESULTS: Mean CPB and aortic cross-clamping time was 89.1±28.7 and 24.8±9.5 min, respectively. Postoperative variables: mechanical ventilation 3.3±1.5 hours, ICU-stay - 18.2±3.7 hours, postoperative hospital-stay - 13.4±5.7 days. There were no mortality and any life-threatening intra- and postoperative complications. Cases of conversion to thoraco-/sternotomy and postoperative bleeding followed by redo surgery were also absent. 23 patients were followed-up within 1 year, 6 patients - within 2 years, 3 patients - within 3 years. All patients were in NYHA class I-II with 100% freedom from ASD recanalization and redo surgery. According to echocardiography data there were decreased right heart, pulmonary artery pressure and preserved left ventricular function in early postoperative period and 1 year after surgery. CONCLUSION: In view of favorable course of postoperative period, no significant specific complications and encouraging immediate results we can talk about endoscopic robot-assisted ASD closure in adults as a safe and effective alternative to surgical treatment.