s] Objective To explore the efficacy of different local anesthetics (hypobaric solutions) for subarachnoid block.

Square face deformity corrected by intraoral bilateral malar and mandibular osteotomy under local anesthesia;

Effect of intravenous injection of propofol combined with uterine cervix local anesthesia on pain during induced abortion;

A comparative analysis of painless and local anesthesia bronchoscopy in lung biopsy

But because of the toxicity of the local anesthetic, especially long effect of local anesthetic bupivacaine as the representation with strong toxicity,so application are restrict in clinic.

Developing renal tract for percutaneous nephrostolithotomy solely under the guide of B ultrasound and local anesthesia;

Effects of three local anesthesia agents during procedures of pulpectomy;

Preparation and property of bupivacaine hydrochloride PLGA microspheres for local anesthesia;