BACKGROUND AND OBJECTIVES There are no studies associating ventilation-induced effects and hemodynamic changes during pneumoperitoneum. This study aimed at evaluating hemodynamic changes determined by pneumoperitoneum in dogs under volume and pressure controlled ventilation. METHODS The study involved 16 dogs anesthetized with sodium thiopental and fentanyl, divided in group 1: volume control...

Introduction: Pneumoperitoneum is a radiological term that is used to describe an abnormal collection of free gas in the peritoneal cavity but outside the viscera. In the majority of cases (>90%), it is a result of perforation of intra­ abdominal viscus with serious consequences and it needs for emergency surgical management. Pneumoperitoneum reflex to the surgeons to proceed to an exploration....

BACKGROUND Conventional pelviscopic surgery requires pneumoperitoneum with CO(2) gas insufflation and lithotomy-Trendelenburg position. Pneumoperitoneum and Trendelenburg position may influence intraoperative respiratory mechanics in anesthetic management. This study was conducted to investigate the influence of pneumoperitoneum and Trendelenburg position on respiratory compliance and ventilati...

PURPOSE This study was intended to investigate the effect of dexmedetomidine on oxidative stress response in pneumoperitoneum established in rats. METHODS Animals were randomized into three groups, group S: with no pneumoperitoneum, group P: with pneumoperitoneum established, and group D: given 100 mcg intraperitoneal dexmedetomidine 30 min before establishment of pneumoperitoneum. Plasma tot...

Pneumoperitoneum without intraabdominal hollow viscus perforation is termed as nonsurgical or spontaneous pneumoperitoneum, which does not demand surgical intervention. Because of rarity of this condition and symptomatic similarity with the pneumoperitomeum due to gut perforation, the condition diagnosed only after a negative laparotomy. Awareness of this entity, a detailed history and clinical...

BACKGROUND Pneumoperitoneum can be a cofactor in adhesion formation. Pneumoperitoneum with non-humidified gas causes desiccation in the peritoneal cavity which decreases temperature. The effect of desiccation upon adhesion formation is widely accepted. The specific effect of the associated cooling upon adhesion formation remains unexplored, and was addressed specifically in our laparoscopic mou...

BACKGROUND Laparoscopic cholecystectomies (LC) are generally performed in a 12 mmHg-pressured pneumoperitoneum in a slight sitting position. Considerable thromboembolism risk arises in this operation due to pneumoperitoneum, operation position and risk factors of patients. We aim to investigate the effect of pneumoperitoneum pressure on coagulation and fibrinolysis under general anesthesia. M...

Background Acid base alterations occur during laparoscopy with carbon dioxide insufflation. The purpose of this study was to investigate the effects of low tidal volume ventilation on acid base status during pneumoperitonium. Materials and Methods 30 patients undergoing laparoscopic surgery under General Anaesthesia were ventilated with tidal volume of 6 ml/kg and respiratory rate of 12 breat...

BACKGROUND Increased intraabdominal pressure (IPA) during laparoscopy has been associated with decreased urine output. The purpose of this study was to use a noninvasive MRI technique to measure renal vessel flow velocity and change in differential renal medulla and cortex perfusion during pneumoperitoneum. STUDY DESIGN Six female farm pigs underwent general endotracheal anesthesia and dynami...