[Right-sided upper lobectomy in a patient with right aortic arch: a case report and literature review]. / Verkhnyaya lobektomiya sprava u patsienta s pravostoronnei dugoi aorty: sluchai iz praktiki s kratkim obzorom literatury.

A right aortic arch is an anomaly of prenatal development characterized by location of aortic arch to the right from tracheal-esophageal complex. This variant of anatomy is usually asymptomatic and diagnosed accidentally. We performed open upper lobectomy for cancer of the upper lobe of the right lung in a patient with aortic arch dextraposition. Classical right-sided upper lobectomy in patients with right aortic arch is associated with certain difficulties. The most difficult objective is total excision of lymph nodes because trachea is hidden under aortic arch. A specific complication may be postoperative hoarseness associated with iatrogenic damage to the right recurrent laryngeal nerve.

[Prognosis of bleeding recurrence after endoscopic sclerotherapy of esophageal varices]. / Vozmozhnosti prognozirovaniya retsidiva krovotecheniya posle endoskopicheskogo sklerozirovaniya varikozno rasshirennykh ven pishchevoda.

OBJECTIVE: To improve prediction of recurrent bleeding after endoscopic sclerotherapy of esophageal varices. MATERIAL AND METHODS: A prospective, observational, case-control study was performed. Immediate and long-term results of endoscopic sclerotherapy of esophageal varices were studied in 91 patients for the period from 2002 to 2016. Multiple regression analysis with binary response model was applied to analyze the prediction models. RESULTS: Recurrent bleeding occurred in 80.5 (20; 182) days after sclerotherapy (range 0-2557 days). Spearman's correlation analysis revealed a significant relationship between bleeding recurrence and erythrocyte count (R= -0.32), Child-Pugh class of liver cirrhosis (R=0.49), Child-Pugh score (5-15) (R=0.54), content of amino acids, HPro/Pro ratio (R=0.71). Prognostic indicators were selected by stepwise inclusion of predictors. Thus, the final version of regression equation is as follows: Y=exp (-0.17+0.93×Child-Pugh score-106.42×HPro/Pro)/[1+exp(-0.17+0.93×Child-Pugh score-106.42×HPro/Pro)]. High risk of recurrent bleeding from esophageal varices within 1 year after endoscopic sclerotherapy is determined by Y-value >0.5. An accuracy of this model is 89.6%, Se 94.3%, Sp 79.2%, PPV 90.9%, NPV 86.4%, OR 63.3, LR + 4.53, LR - 0.07. CONCLUSION: Thus, the proposed method is highly informative, effective, available and can be widely used in clinical practice.