ABSTRACT
Given the poor prognosis of proliferative diabetic retinopathy (PDR),the morbidity of PDR has also increased recent years.Modern surgery has undergone a very impressive development over the last 10a due to the evolution of methods,techniques and extension of surgical indications.In this article,we will review the current choices of the surgery time,perioperative managements,as well as the methods of the vitrectomy.
ABSTRACT
To explore the model and method of improving the compliance of colorectal cancer screening , especially the fine sieve compliance of colonoscopy . [ Methods ] The colorectal cancer screening in Wujing community was led by Wujing Community Health Center .For the sake of impro-ving the compliance of screening , Wujing Community Health Center established a screening team and speci-fied a neighboring general hospital as screening partner .We also used the method of refining the screening steps , tracking the result in time , simplifying the procedures of colonoscopy test and making epidemiological analysis. [Results] From October 1,2012 to September 30,2013, a total of 7 507 people in Wujing community received colorectal cancer screening , of whom 427 (5.69%) were found to be positive in fecal occult blood testing (FOBT).And among them, 386 (90.40%) agreed to accept the colonoscopy test and finally 380 people (88.90%) finished the test.According to the results of colonoscopy test were detected 5 cancer patients (1.32%) and 84 precancerous lesion patients (22.11%).Further treatment rate for color-ectal cancer patients was 100.00%and for precancerous lesion patients 75.00%.The median duration was 4 days for preliminary screening positive subjects from preliminary screening to receiving positive notification and 10 days for refined screening .The median duration was 3 days for colorectal cancer patients from re-fined screening to completing treatment and 25 days for early colorectal cancer patients . [ Conclusion] The model and method adopted in Wujing community is helpful to improve the compliance of colorectal cancer screening .
ABSTRACT
Background Whether ocular anterior and posterior chamber exist a blood-aqueous barrier is in controversy.Conventional method can not offer a good evidence because it is unable to detect the aqueous component in the posterior chamber.Objective This study was to investigate the distribution of Gadolinium-diethylene triamine pentaacetic acids(Gd-DTPA)after peripheral iridectomy with magnetic resonance imaging(MRI)in rabbit.Methods Monocular peripheral iridectomy was performed on the right eyes in 8 clean New Zealand white rabbits and the fellow eyes were as controls.0.2 ml/kg(0.5 mol/L)Gd-DTPA,a tracer of MRI,was injected into ear vein in vivo to scan the eyes with MRI for the observation of the permeability and distribution.The signal enhanced ratio of interest region associated with time were analyzed.Results The signal in ciliary body of both eyes showed an immediately sharp enhancement within 10 minutes following the injection of Gd-DTPA with a peak intensity at 30-40 minutes,and then the intensity was gradually weaken over time.The signal was stronger in the operative eyes than that in the fellow eyes.The signal in the posterior chamber was gradually increased after operation,however,that in posterior chamber of the control eyes was lower.The interest regions of Gd-DTPA were ciliary,anterior chamber and posterior chamber,and the enhanced signal intensities were consisted in the posterior chamber after operation.However,the increase of the signal was not seen in the posterior chamber in the control eyes.Conclusions The pathway of plasma protein entering into the anterior chamber is very different from that of aqueous secretion.There exists a barrier between the anterior and posterior chamber which might be an integral part of the blood-ocular barrier.