ABSTRACT
Objective: Complications are important determining factors for safety of endoscopic submucosal dissection [ESD]. ESD of large lesions is associated with increased procedural time. This study investigated whether double-channel gastroscope could be used to reduce procedural time in gastric antrum ESD
Methods: A retrospective cohort study of 46 patients with one gastric antrum lesion resected by ESD was conducted between January 2013 and December 2015. The diameter of a lesion was from 2cm to 4cm in 46 patients. EUS before ESD was used to evaluate the submucosal vascular structure and the location of lesion in gastric wall. Forty six lesions had ESD with either the ordinary gastroscope [OS group] [n=24] or the double-channel gastroscope [DC group] [n=22]
Results: The mean procedural time was significantly lower in the DC group than in the OS group [49.1 minutes vs. 20.5 minutes, p=0.04]. There were no significant differences in submucosal injection frequency, specimen size, en bloc resection rate and perforation rate between the two endoscopic groups. There was no recurrence in any case during the follow-up period
Conclusions: Our data suggest that ESD utilizing double-channel gastroscope may provide a better platform for quicker ESD with equal safety
ABSTRACT
OBJECTIVE@#To determine the influence of artificial disc replacement on the stability of lumbar.@*METHODS@#Ten fresh human cadaveric lumbar spine specimens (9 males, 1 female) were tested. The donors had a mean age of 29.3 years old. The segments were fixed on a special testing device mounted in a universal testing machine. Physiological load with a maximum of 10 Nm was applied in the flexion, extension, right and left side bending. Moments were applied in 6 load steps: 0, 2, 4, 6, 8, and 10 Nm. Linearity migration and angle migration were recorded,and the mean flexibility coefficients were calculated. Four procedures of measurement were performed in every specimen: intact segments, segments after discectomy, segments after the artificial disc replacement, and segments after the artificial disc replacement with cutting posterior longitudinal ligament locally.@*RESULTS@#The indexes we calculated of the segments after the discectomy were statistically different compared with the intact segments (P0.05).@*CONCLUSION@#Artificial intervertebral disc replacement could keep the stability of the lumbar functional spine unit. There was no harmful effect of cutting posterior longitudinal ligament locally on the stability of lumbar while performing artificial intervertebral disc replacement when it is necessary.
Subject(s)
Adult , Female , Humans , Male , Cadaver , Intervertebral Disc , General Surgery , Joint Instability , Lumbar Vertebrae , General Surgery , Prosthesis ImplantationABSTRACT
<p><b>OBJECTIVE</b>To investigate the actual condition of the sexual physiological and psychological development of the high school students in Yibin in order to get a reliable basis for sexual education of the teenagers.</p><p><b>METHODS</b>With a proportion of 1% to the whole, 2,770 students were randomly selected from eight high schools in the urban and rural areas of the city. We devised a questionnaire and asked each student to fill in his or her answers presently.</p><p><b>RESULTS</b>So far as sexual physiological and psychological development was concerned, the high school students of Yibin were found rather precocious, with very little sexual knowledge and psychological endurance in sexual affairs and a relative lack of sexual education.</p><p><b>CONCLUSION</b>It is imperative to extend the scope of puberty sexual education in high schools. Teenagers must be taught different kinds of sexual knowledge at different periods of growth as well as how to avoid sexually transmitted diseases and gestation. The sexual knowledge level of the teachers must also be raised. It is a must to establish service or specialist consultation hot lines about sexual knowledge for teenagers. Parents are expected to change their traditional views and assume an active role in the joint efforts of sexual education for their children.</p>