Pneumothorax progresses quickly in newborns and can lead to death. This study collected data prospectively over a 2-year period on risk factors, clinical course and prognostic factors of newborn cases diagnosed and treated for pneumothorax. Thirty patients were evaluated for risk factors including concurrent disease, method and duration of chest drainage, oxygen saturation and mechanical ventilation. Pneumothorax developed mostly in male and mature infants during the first 48 h following birth; risk factors included concurrent respiratory distress syndrome and meconium aspiration. Mechanical ventilation was undertaken in 18 (60%) of the patients. Closed-tube drainage was used in 28 (93%) of the patients. Nine out of 10 patients (90%) whose oxygen saturation remained < 90% died. Thus, pneumothorax may develop during the neonatal period, especially in the presence of risk factors, and neonates with < 90% oxygen saturation, despite treatment, have a high mortality rate.

In this article, the case of a 30-years-old female patient with supravalvular aortic stenosis is reported. Her clinical picture was otherwise completely different from Williams syndrome. Since supravalvular aortic stenosis is rarely seen, its forms are discussed and it is concluded that supravalvular aortic stenosis can be present without Williams syndrome.

BACKGROUND:Videothoracoscopic surgery leads to general organ hypoperfusion by reducing mean arterial pressure, systemic vascular resistance, and end-diastolic volume index. Oxidative stress occurs as a result of hypoperfusion. Evaluation of the short-term effects of videothoracoscopic sympathectomy on serum ischemia-modified albumin (IMA), malondialdehyde (MDA), and nitric oxide (NO) levels in patients with primary hyperhidrosis was aimed.METHODS:Twenty-six patients who underwent videothoracoscopic surgery were contributed in this study. Venous blood samples were obtained from these patients 1 h before and after the surgery. IMA, MDA, and NO levels were measured in serum samples by colorimetric methods. Albumin concentrations were also measured for each sample, and albumin-adjusted IMA levels were calculated.RESULTS:Postoperative IMA, albumin-adjusted IMA, and MDA values were significantly higher compared to the preoperative values (P = 0.003, 0.027, 0.018, respectively). However, postoperative NO levels were lower than the preoperative values (P = 0.002). There was no significant difference between pre- and postoperative albumin concentrations, and there was no significant correlation between the parameters tested.CONCLUSIONS:We can conclude that elevation in MDA and IMA levels after videothoracoscopic surgery was caused by increased oxidative stress due to minimal ischemia-reperfusion injury after the infusion of CO2 during the surgical process. Videothoracoscopic sympathectomy operation causes a decrease in NO production, and this should be taken in consideration when evaluating nitrosative stress in videothoracoscopic surgery.