Effects of Butorphanol on Infraclavicular Brachial Plexus Block with Ropivacaine;

Preparation and in Vitro Release of Poly(lactide-co-glycolide) Microspheres Loaded with Ropivacaine;

Effect of 0.25% Ropivacaine on Respiration and Circulation Function During High Epidural Anesthesia;

Clinical observation of tramadol added to ropivacaine solution for brachial plexus block;

Effect of lidocaine with different concentration combined with ropivocaine or ropivocaine alone on the onset time of sciatic nerve;

The comparision research of epidural Ropivocaine with Bupivocaine anaesthesia in renal transplantation;

Effecf of Unilateral CSEA with Low Concentration of Hypobaric Ropivocaine in Senile Hip Joint Surgery;

Application of Ropivacaine Combined with Tramadol in Variable Doses for Lumber Anesthesia in Transurethral Prostatic Electroresection of the Aged;

Ropivacaine used in senile patients with extradural blockage anesthesia;

Comparison of continuous brachial plexus block of ropivacaine vs bupivacaine for patient-controlled analgesia;

The Comparison of 0.25% Ropivacaine and 0.25% Bupivacaine in Cervical Plexus Block Effect;

Clinical observation on epidural analgesia with Ropivacaine combined with small dose of Fentanyl for labor analgesia;

Comparison of ropivacaine with bupivacaine used for cervical plexus nerve blockade;

Methods Fifty patients were randomized to receive a total of 286mg (66ml) ropivacaine or 66ml saline via periportal and intraperitoneal infiltration.