Laser Powder Bed Fusion of Chromium Bronze Using Recycled Powder.

Laser powder bed fusion (LPBF) of Cu-0.5Cr was carried out using recycled powder taken out from the LPBF machine after previous printing. Various volumetric defects characterized the powder wherein particle size distribution was the same as virgin powder.

[The role of plasmapheresis in prevention of complications after thoracoscopic thymectomy in patients with myasthenia combined with thymic hyperplasia].

Surgical indications for thymectomy include thymus tumour of different genesis as well as myasthenia. Minimally invasive methods such as thorascopy and robot-assisted thymectomy have been widely used lately as well as standard surgical methods namely sternotomy and thoracotomy. Regardless the type of access in myasthenia patients specific crisis conditions of respiratory failure can appear in postoperative period that usually requires mechanical ventilation.

[Surgery for cardio-esophageal cancer].

The experience of surgery of 369 patients with cardio-esophageal cancer treated in the Kazan Republic Clinical Oncology Center is presented. The patients are divided into 3 groups respective of the type of adenocarcinoma (classification by J.R.

[SOME ASPECTS OF DIAGNOSIS AND COMPREHENSIVE TREATMENT OF BARRETT'S ESOPHAGUS].

Objective: Assess the value of routine endoscopy in the diagnosis of Barrett's esophagus (BE) in patients with gastroesophageal reflux disease (GERD) and to show the feasibility of a comprehensive treatment algorithm that includes antireflux surgery as an essential component.

Materials And Methods: The study was conducted on a sample of 171 patients with Barrett's esophagus who underwent antireflux surgery. In evaluating the operating characteristics of endoscopy were recruited another 675 patients with GERD without BE.

[The ruptures of the trachea with the intubation tube in patients with esophagus cancer].

Postintubation tracheal ruptures is a rare but serious complication with high risk for the patient's life. The preliminary diagnosis is usually made after occurrence of subcutaneous emphysema, blood spitting, respiratory insufficiency, pneumothorax and/or pneumomediastinum. The suspected rupture of the trachea should be verified by fiber-optic bronchoscopy.

Morphofunctional analysis of experimental model of esophageal achalasia in rats.

We carried out a detailed analysis of rat model of esophageal achalasia previously developed by us. Manifest morphological and functional disorders were observed in experimental achalasia: hyperplasia of the squamous epithelium, reduced number of nerve fibers, excessive growth of fibrous connective tissue in the esophageal wall, high contractile activity of the lower esophageal sphincter, and reduced motility of the longitudinal muscle layer. Changes in rat esophagus observed in experimental achalasia largely correlate with those in esophageal achalasia in humans.

[An integrated approach to diagnosis and treatment of Barrett's esophagus].

Barrett's oesophagus is a condition when the oesophagus adenocarcinoma risk increases. There are different ways of diagnostic and treatment for this disease abroad and our country. We offer a complex method for Barrett's oesophagus treatment.

[Endoscopic diagnosis and complex treatment of Barrett's esophagus complicated by hernia of esophageal foramen of the diaphragm].

A protocol is suggested of complex diagnosis and treatment of Barrett's esophagus using sparing endoscopic removal of Barrett's epithelium in combination with surgery and medicinal antireflux therapy. Eighty-three patients were diagnosed and treated for hernia of esophageal foramen of the diaphragm and gastro-esophageal reflux complicated by Barrett's esophagus. Ninety-two percent of patients receiving our four-component treatment were cured; no recurrent esophageal adenocarcinoma was reported during the 56.

[Laparoscopic surgeries in the treatment of hiatal hernias].

Immediate and long-term results of treatment of 132 patients with hiatal hernias are analyzed. Indications for surgery are determined. Complications during and after laparoscopic antireflux surgeries are analyzed.

[Functional and morphological state of the liver in secondary cholangitis].

Studies on the liver state from the functional-morphological point of view in patients with acute and chronic secondary cholangitis have revealed in all cases the involvement of hepatic parenchyma with the development of cholangiohepatitis. In its acute course and timely performed operative interventions the process in the liver tends to subside. The authors consider that due to the absence of pure forms of cholangitis this term seems to be questionable, and they recommend to substitute it in all cases by the term cholangiohepatitis.

[Clinical characteristics, selection of the method and results of treatment of nonspecific spontaneous pneumothorax].

Under observation were 144 patients, aged from 16 to 74 years, examined and treated for nonspecific spontaneous pneumothorax observed in 161 cases. Most patients (96) were under 40. The development of pneumothorax in most of them might be related with previously suffered diseases of the respiratory tract and lung.