预注右旋美托咪啶用于喉显微手术麻醉的研究

目的研究分析预注右旋美托咪啶用于喉显微手术麻醉中的临床效果。方法选取2017年12月—2018年12月本院收治的80例行喉显微手术治疗的患者为观察对象,并将其随机分为普通组与观察组,每组各40例,普通组中患者行常规诱导麻醉,观察组中患者行预注右旋美托咪啶诱导麻醉,比较两组麻醉应用效果。结果在T1、T4、T5时段,观察组患者HR、MAP水平均低于普通组,其血流动力学稳定,且不良反应发生率相比普通组降低,两组间比较差异有统计学意义(P<0.05)。结论对行喉显微手术患者在应用预注右旋美托咪啶麻醉,能改善患者血流动力学指标水平,减少患者不良反应。     

Silicone-based simulation models for peripheral nerve microsurgery

Background

There is a need for a peripheral nerve model on which surgeons-in-training can simulate the repair of nerve injuries at their own pace. Although practicing on animal models/cadavers is considered the “gold standard” of microsurgical training, the proposed model aims to provide a platform for improving the technical skills of surgical trainees prior to their practice on cadaver/animal models. In addition, this model has the potential to serve as a standardized test medium for assessing the skill sets of surgeons.

Outcomes of endodontic micro-resurgery: a prospective clinical study

Introduction

This study examined the outcomes of endodontic resurgery by using current microsurgery techniques on failed teeth with previous endodontic surgery. Another goal was to determine any significant outcome predictors of endodontic surgery by determining the causes of failure in the first endodontic surgery.

Methods

The data were collected from patients in the Department of Conservative Dentistry at the Dental College, Yonsei University in Seoul, Korea between March 2001 and May 2009. All 54 teeth that required surgical retreatment were included in this study. All surgical procedures were performed by using an operating microscope and biocompatible root-end filling materials such as mineral trioxide aggregate (MTA) or Super EBA. The patients were recalled every 6 months for 2 years and every year thereafter to assess the clinical and radiographic signs of healing.

Results

The recall rate was 77.8% (42 of 54 patients). Of the 42 cases recalled, 39 cases were included in the success category, giving an overall success rate of 92.9%. The most common possible causes of failure were no root-end filling and incorrect root-end preparation.

Conclusions

The use of microsurgical techniques and biocompatible materials such as MTA and Super-EBA resulted in a high clinical success rate, even in endodontic resurgery.