Objective OCTA analysis was employed to assess the alterations in retinal microcirculation following vitrectomy in patients with diabetic retinopathy.Methods The clinical data of 60 eyes from 60 diabetic retinopathy patients who accepted vitrectomy from Mar.2022 to May.2024 in Daqing Oilfield General Hospital were analyzed prospectively.The preoperative and postoperative outcomes of best corrected visual acuity(BCVA),intraocular pres-sure(IOP),and optical coherence tomography angiography(OCTA)were compared at baseline,as well as at 1 day,1 week,1 month,and 3 months following surgery.Results There was statistically significant differences in IOP between preoperative and postoperative 1 day and 1 week(P＜0.01).There were significant differences in BCVA and CMT observed prior to surgery,as well as at 1 day,1 week,1 month,and 3 months post-surgery(P＜0.01).FAZ and RPC exhibited significant differences prior to surgery,as well as at 1 week,1 month,and 3 months postoperatively(P＜0.01).The SVD,DVD,and RNFL exhibited significant differences prior to surgery and at 1 month and 3 months postoperatively(P＜0.01).Conclusions Vitrectomy can substantially enhance the visual acuity of patients with DR,and this improvement tends to stabilize approximately one month post-surgery,potential-ly correlating with the stability of central macular thickness(CMT)observed in patients at that time.The procedure can significantly decrease intraocular pressure in patients,and FAZ along with the radial peripapillary capillaries(RPC)in the macular region exhibited earlier improvement postoperatively.

Objective OCTA analysis was employed to assess the alterations in retinal microcirculation following vitrectomy in patients with diabetic retinopathy.Methods The clinical data of 60 eyes from 60 diabetic retinopathy patients who accepted vitrectomy from Mar.2022 to May.2024 in Daqing Oilfield General Hospital were analyzed prospectively.The preoperative and postoperative outcomes of best corrected visual acuity(BCVA),intraocular pres-sure(IOP),and optical coherence tomography angiography(OCTA)were compared at baseline,as well as at 1 day,1 week,1 month,and 3 months following surgery.Results There was statistically significant differences in IOP between preoperative and postoperative 1 day and 1 week(P＜0.01).There were significant differences in BCVA and CMT observed prior to surgery,as well as at 1 day,1 week,1 month,and 3 months post-surgery(P＜0.01).FAZ and RPC exhibited significant differences prior to surgery,as well as at 1 week,1 month,and 3 months postoperatively(P＜0.01).The SVD,DVD,and RNFL exhibited significant differences prior to surgery and at 1 month and 3 months postoperatively(P＜0.01).Conclusions Vitrectomy can substantially enhance the visual acuity of patients with DR,and this improvement tends to stabilize approximately one month post-surgery,potential-ly correlating with the stability of central macular thickness(CMT)observed in patients at that time.The procedure can significantly decrease intraocular pressure in patients,and FAZ along with the radial peripapillary capillaries(RPC)in the macular region exhibited earlier improvement postoperatively.

Objective:To investigate the diagnostic efficacy between magnetic resonance imaging(MRI)and ultrasound for training injury of medial head of gastrocnemius muscle.Methods:Clinical data of 70 cases with lower limb training injury suspected to be in the medial head of gastrocnemius muscle from Jan 2013 to Jan 2022 were retrospectively analyzed.All patients were examined by ultrasound and MRI,and their sensitivity,specificity and accuracy according to the final clinical diagnosis was compared.Results:Of the 70 cases of training injury,48 cases were finally diagnosed as medial head injury of gastrocnemius muscle,and 22 cases had no gastrocnemius injury.And there were 19 cases of gastrocnemius tissue injury,28 cases of myofascial injury edema and tissue interstitial effusion,26 cases of tendon and tendon sheath injury,and 6 cases of tendon insertion enthesiopathy.The sensitivity of ultrasound and MRI in the diagnosis of training injury of medial head of gastrocnemius muscle were 85.4%(41/48),97.9%(47/48)and the accuracy was 84.3%(59/70),95.7%(67/70),respectively.The diagnostic accuracy and sensitivity of MRI were higher than those of ultrasound(P＜0.05).There was no significant difference in specificity between the two methods(P＞0.05).Conclusion:MRI has higher accuracy and sensitivity compared with ultrasound in the diagnosis training injury of medial head of gastrocnemius muscle,which has important diagnostic value.

The digital X-ray imaging device was disinfected with trichloro-isocyanuric acid solution.The samples were taken with cotton swab pouring method before and 1,2,3 and 6 h after disinfection and the bacteriological examination was performed.Before disinfection the colony count of samples was all above the standard (＞ 10 cfu/cm2) with bacilli and gram-positive cocci predominantly.The highest count was detected in the X-ray photographic bed (58 cfu/cm2) and the lowest was in the exposure button(19 cfu/cm2).After disinfection the colony count in radiation suits still exceeded the standard,the colony count in diagnosis bed 2 h after disinfection,that in all parts of device 3 h after disinfection was off levels.The results indicate that the chlorine disinfectants can only achieve short-term effect in disinfection of digital X-ray imaging device.

Objective To assess the risk factors of the in-hospital mortality of acute type A aortic dissection after operation. Method From January 2003 to June 2008,185 patients, 144 males and 41 females, with acute type A aortic dissection operated on were enrolled. The average age of patients was (49.46 ± 11.04 ) years old.The patients' demographics, history, clinical features, and some laboratory examinations were reviewed. Univariate and multivariate analysis followed by logistic regression analysis were carried out to identify the predictors of inhospital mortality. Results The in-hospital mortality rate was 9.1%. The results of univariate and multivariate analyses as follows: pre-operation positive neurological symptom (Univariate OR = 5.084,95%CI:1.792 -14.426, P = 0.002; Multivariate OR = 5.538,95%CI: 1.834 - 16.721, P = 0.002, respectively), hypotension (Univariate OR = 6.986,95%CI:1.510- 32.323,P =0.013; multivariate OR = 1.998,95%CI:0.315-12.679,P = 0.463, respectively) and renal failure (Univariate OR = 3.594,95%CI:1.237 - 10.438,P =0.019; Multivariate OR = 3.254,95%CI:1.034- 10.242, P= 0.044, respectively). Conclusions There are two predictors, pre-operation positive neurological symptom and renal failure, of pre-hospital mortality found in current analyses. Our results may improve the regimen made by cardiac surgeons and emergency doctors so as to help patients and their relatives to make correct decision.