Application of computer assisted navigation system in endoscopic sinus and skull base surgery / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To evaluate the applicative value of computer assisted navigation system in endoscopic sinus and skull base surgery.@*METHOD@#Forty-nine endoscopic surgery procedures were performed with the help of computer assisted navigation system, among which there were 25 cases of recurrent sinusitis and nasal polyps, 9 cases of nasal and sinus tumour, 7 cases of cerebrospinal fluid rhinorrhea, 2 cases of meningoencephalocele, 4 cases of congenital choanal atresia, 1 case of pituitary tumor and 1 case of foreign body in middle cranial fossa.@*RESULT@#The preoperative time was 5-13 minutes for preparation, 7 minutes in average. The target error was less than or equal to 1.5 mm. All the 49 cases had successful surgery without complications.@*CONCLUSION@#Computer assisted navigation system can help the surgeon to determine the sinus, skull base and adjacent anatomic landmarks correctly, improve surgical accuracy and safety, and reduce intraoperative and postoperative complications.

Physical Training and Cardioprotection / 中国运动医学杂志

Experimental, clinical and epidemiologic studies have provided strong evidence that physical training has beneficial effects on cardiovascular health. Numerous investigations have demonstrated that exercise increases coronary blood flow and myocardial perfusion. Importantly, training also can stimulate angiogenesis and accelerate collateral vessel growth in animal models with coronary artery occlusion. Cardiac adaptation such as increased vascularity or capillary density has been evidenced after regular endurance exercises. More recently, several studies indicate that physical training induces high levels of myocardial heat shock protein and antioxidant protein expression, which may play an important role in myocardial protection against ischemia-reperfusion injury.