Preoperative computerized tomography screening for COVID-19 pneumonia in asymptomatic patients: experiences from two centers.

Purpose: The aim of this retrospective study is to evaluate the preoperative screening performance of chest CT (computerized tomography) examination to detect COVID-19 positive individuals.

Materials And Methods: In this retrospective study 218 adult patients who had preoperative chest CT and RT-PCR were enrolled. CT imaging results, which have been reported according to the Radiological Society of North America expert consensus on COVID-19, were collected from the picture archiving and communicating system.

Tako-Tsubo syndrome in an anaesthetised patient undergoing arthroscopic knee surgery.

We present a case of stress-induced myocardial stunning, also known as Tako-Tsubo syndrome, in an anaesthetised patient undergoing arthroscopic replacement of the cruciate ligament. The patient's (44 y male, ASA class II) had a history of hypertension with no other known disease. He underwent a femoral nerve block with 20 ml of 0.

Effect of hypotensive anesthesia on cognitive functions. A comparison of esmolol and remifentanil during tympanoplasty.

Objective: To compare the effects of esmolol and remifentanil, used as adjuncts for induced hypotension on surgical conditions and short-term cognitive functions, during tympanoplasty.

Methods: The study was conducted in Hacettepe University, School of Medicine, Ankara, Turkey between January 2005 and December 2006 following Institutional Ethical Committee approval, 40 ASA I-II patients, between 18 and 60 years of age were included in this study. With the induction of anesthesia, for group E, an esmolol infusion of 50-250 ug.

Comparison of propofol/fentanyl and ketamine anesthesia in children during extracorporeal shockwave lithotripsy.

Objective: Extracorporeal Shockwave Lithotripsy (ESWL) is an effective and safe way for treatment of upper urinary system stones. For pediatric patients, throughout ESWL, sufficient sedation and analgesia is needed to cope with the procedural pain. In this study, our goal was to compare 2 methods of intravenous anesthesia, applied to pediatric patients during ESWL.

Repeated attacks of venous air embolism during endoscopic sinus tumor surgery: a case report.

Repeated attacks of venous air embolism during an operation is a very rare situation. We report a case of multiple venous air emboli during an endoscopic surgery of a sphenoidal sinus tumor.