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find Keyword "对比研究" 25 results
  • Comparison of 23G and 20G vitrectomy for treatment of infectious endophthalmitis

    Objective To compare the outcomes and safety of 23G and 20G vitrectomy for treatment of infectious endophthalmitis. Methods This was a retrospective case study. Sixtyseven eyes of 67 eyes suffering from infectious endophthalmitis with a history of trauma or intraocular operation history were enrolled in this study. They were diagnosed by the examinations of best corrected visual acuity, intraocular pressures, slit lamp microscope, indirect ophthalmoscopy, B-scan ultrasound and CT. There were 49 males (49 eyes) and 18 females (18 eyes). The patients aged from 18 to 72 years with a mean age of (43plusmn;13) years. There were 60 patients (60 eyes) with a history of trauma, 7 patients (7 eyes) with intraocular operation history. The patients were enrolled into 20G vitrectomy group (35 patients, 35 eyes) before December, 2009 and 23G vitrectomy group (32 patients, 32 eyes) after January, 2010 when 23G vitrectomy system was imported in this hospital. Vitreous purulence was taken in all patients at the beginning of the surgery for bacteria and fungal culture and drug sensitivity test. A standard vitrectomy with artificial posterior vitreous detachment followed by internal limiting membrane peeling, and (or) intraocular laser photocoagulation, cryocoagulation, fluidair exchange with intraocular silicone oil or gas tamponade were performed in all cases. Broadspectrum antibiotics and glucocorticoids were used systematically for one week after surgery, but glucocorticoids were not used for fungal infections. The followup was ranged from two to nine months with a mean of (7plusmn;1) months. The surgical time, inflammation situation, visual acuity, intraocular pressure, retinal reattachment rate, iatrogenic retinal hole rate, bulbar conjunctiva scar formation rate, reoperation rate and eye retention situation before and after surgery were comparatively analyzed. Results The mean surgical times were (126plusmn;12) and (89plusmn;12) minutes in 20G and 23G group, which was significantly different (t=3.125, P<0.05). The major surgery complications were ora serrata dialysis and other iatrogenic retinal breaks, and were occurred in 34 eyes, including 30 eyes (85.71%) in 20G group and 4 eyes (12.50%) in 23G group (chi;2=35.85,P<0.05). These 4 eyes in 23G group received foreign body removal surgery previously. The inflammation was controlled in 65 eyes (97.01%) including 34 eyes (97.14%) and 31 eyes (96.88%) in 20G and 23G group respectively, which was not significantly different (chi;2=0.004,P>0.05). At last follow-up, There was no statistical difference of visual acuity between the two groups (t=3.12, P>0.05). Fourteen eyes underwent silicone oil tamponade including 13 eyes (37.14%) and 1 eye (3.13%) in 20G and 23G group respectively, which was significantly different (chi;2=11.703, P<0.05). Nine eyes underwent reoperation (13.43%), including 8 eyes (22.86%) and 1 eye (3.13%) in 20G and 23G group respectively, which was significantly different (chi;2=5.597,P<0.05). The 8 re-operated eyes in 20G group included 1 eye of recurrent endophthalmitis and 7 eyes with retinal detachment, the 1 re-operated eye in 23G group was of recurrent endophthalmitis. There was significantly different (chi;2=7.147,P<0.05) for the rate of retinal detachment between the 2 groups. There were 40 eyes with bulbar conjunctiva scar including 35 eyes (100.00%) and five eyes (15.63%) in 20G and 23G group. Conclusion 23G vitrectomy is an effective treatment for infectious endophthalmitis with shorter surgery time, lower reoperation rate, lower retinal reattachment rate and fewer bulbar conjunctiva scar.

    Release date:2016-09-02 05:25 Export PDF Favorites Scan
  • Comparison of 23G and 20G vitrectomy for treatment of proliferative diabetic retinopathy

    Objective To compare the outcomes of 23G and 20G vitrectomy in treatment of proliferative diabetic retinopathy (PDR). Methods This was a prospective randomized study. One hundred twenty six patients (142 eyes) suffering from PDR with symptoms requiring vitrectomy were randomly divided into 20G vitrectomy group (66 patients, 74 eyes) and 23G vitrectomy group (60patients,68eyes). Visual acuity, intraocular pressures,indirect ophthalmoscopy, B-scan ultrasound, tear film break up time (BUT), Schirmer Ⅰ test (S Ⅰ T), astigmatic power and the astigmatic axial at 6 mm area of anterior and posterior corneal surface were observed and measured before surgery. The follow-up period was 15.0 and 12.5 months separately in 20G and 23G groups. Intraoperative complications, operation time, postoperative visual acuity, intraocular pressure, postoperative complications, reoperation, and postoperative ocular conditions including changes of astigmatic power and the astigmatic axial measurements were analyzed. Results At last follow-up, there was 49 eyes (66.2%) and 47 eyes (69.1%) with visual acuity ge;0.05 in 20G and 23G groups. Comparing visual acuity ge;0.05, there was no statistical difference between the groups (chi;2=0.14, P>0.05). The eyes suffering from iatrogenic injuries were 18 (24.3%) and seven (10.3%). There was obvious difference in iatrogenic injury between the two groups (chi;2=4.81, P<0.05). The mean surgical times were (69.0plusmn;8.2) and (51.0plusmn;6.3) minutes in 20G and 23G group, which was significantly different (t=3.65, P<0.05). The postoperative third day, hypotony was detected in three (4.1%) and 11 eyes (14.7%) in 20G and 23G group, which was a significantly different (chi;2=5.85, P<0.05). Postoperatively high intraocular pressures were not significantly different between the two groups (chi;2=2.54,P>0.05). There were 24 (32.4%) and 14 eyes (20.6%) in 20G and 23G group. There were significant differences in BUT, SⅠT, astigmatic power and the astigmatic axial measurements compared with those preoperatively at the first month after operation (t=3.35, 4.12, -3.12, -3.22; P<0.05), but no significant differences in them at the third and sixth month after operation (third month: t=0.45, 0.98, -2.12, -1.02; P>0.05, and the sixth month: t=0.95, 1.48, -1.02, -2.11; P>0.05). In 23G group, there were no significant differences in BUT, SⅠT, astigmatic power and the astigmatic axial measurements compared with those preoperatively at the first, third and sixth month after operation (first month: t=1.21, 1.46, -2.32, -1.61; P>0.05, third month: t=1.45, 2.21, -2.19, -1.89; P>0.05, and sixth month: t=1.92, 1.25, -1.76, -2.35; P>0.05). Conclusion 23G vitrectomy is a safe and effective treatment for PDR with shorter surgery time, fewer surgical complications and postoperative ocular surface changes.

    Release date:2016-09-02 05:25 Export PDF Favorites Scan
  • Clinical comparison of pulmonary lobectomy in patients with massive hemoptysis of pulmonary tuberculosis after bronchial artery embolization

    ObjectiveTo compare the clinical data of pulmonary lobectomy in patients with massive hemoptysis of pulmonary tuberculosis after bronchial artery embolization in the short and long term, so as to provide a reference for clinical choices of appropriate operation time.MethodsA retrospective analysis was conducted on 33 patients with massive hemoptysis of pulmonary tuberculosis, who had received pulmonary lobectomy after bronchial artery embolization in Wuhan Pulmonary Hospital from January 2015 to November 2017, including 29 males and 4 females aged of 23-66 (52.64±9.70) years. According to the time interval between bronchial artery embolization and lobectomy, the patients were divided into a short-term group (<2 weeks, 14 patients) and a long-term group (>1 month, 19 patients). The clinical data, such as operation time, intraoperative blood loss, postoperative extubation time and serious postoperative complications, were observed in the two groups for statistical analysis.ResultsThe operative time (297.13±75.69 min vs. 231.32±67.57 min, P=0.013), intraoperative blood loss (685.74±325.51 mL vs. 355.83±259.11 mL, P=0.002), postoperative extubation time (14.07±5.24 d vs. 8.90±3.57 d, P=0.003) of the short-term group were all higher than those in the long-term group.ConclusionFor the patients with massive hemoptysis of pulmonary tuberculosis, who had surgical indications and no risk of early rebleeding after bronchial artery embolization, pulmonary lobectomy should be performed late until the patient's physical condition and the primary disease was stable.

    Release date:2019-12-13 03:50 Export PDF Favorites Scan
  • The comparison between tendency-oriented perimetry and traditional threshold perimetry

    Objective To evaluate the application of tendency-oriented perimetry (TOP) in detecting the visual function of glaucoma. Methods The traditional threshold perimetry (Normal/Normal strategy) and TOP (TOP/Normal strategy) carried out by Octopus 101 perimetry were used to examine the visual field of 20 normal subjects (20 eyes), 32 cases (32 eyes) of primary open-angle glaucoma (POAG), and 14 cases (14 eyes) of suspected POAG, respectively. The visual field outcomes, indices, point by point threshold variability and defective points of the two perimetries were compared and analysed. Results The negative rate of TOP was 90% in normal subjects. The positive rate of TOP was 75% in POAG , and 100% in middle and late stage of POAG. The visual field indices of two perimetries were positively correlated, with mean sensitivity (MS) of r=0.9335, mean defect (MD) of r=0.9189, and loss variance (LV) of r=0.9621. The point by point threshold variability and defective points of TOP were higher than those of traditional threshold perimetry, but the difference between the two perimetries was not significant (P=0.2019, P=0.4448). Conclusion The visual field indices of TOP and traditional threshold perimetry are positively correlated. The sensitivity and reproducibility of TOP are high in detecting the visual function of middle and late stage of POAG. (Chin J Ocul Fundus,Dis, 2002, 18: 269-272)

    Release date:2016-09-02 06:01 Export PDF Favorites Scan
  • COMPARATIVE STUDY ON GRAFT OF AUTOGENEIC ILIAC BONE AND TISSUE ENGINEERED BONE

    OBJECTIVE: To compare the clinical results of repairing bone defect of limbs with tissue engineering technique and with autogeneic iliac bone graft. METHODS: From July 1999 to September 2001, 52 cases of bone fracture were randomly divided into two groups (group A and B). Open reduction and internal fixation were performed in all cases as routine operation technique. Autogeneic iliac bone was implanted in group A, while tissue engineered bone was implanted in group B. Routine postoperative treatment in orthopedic surgery was taken. The operation time, bleeding volume, wound healing and drainage volume were compared. The bone union was observed by the X-ray 1, 2, 3, and 5 months after operation. RESULTS: The sex, age and disease type had no obvious difference between groups A and B. all the wounds healed with first intention. The swelling degree of wound and drainage volume had no obvious difference. The operation time in group A was longer than that in group B (25 minutes on average) and bleeding volume in group A was larger than that in group B (150 ml on average). Bone union completed within 3 to 7 months in both groups. But there were 2 cases of delayed union in group A and 1 case in group B. CONCLUSION: Repair of bone defect with tissue engineered bone has as good clinical results as that with autogeneic iliac bone graft. In aspect of operation time and bleeding volume, tissue engineered bone graft is superior to autogeneic iliac bone.

    Release date:2016-09-01 10:15 Export PDF Favorites Scan
  • Controlled Clinical Study on Laparoscopic Assisted and Open D2 Radical Resection for Advanced Gastric Cancer

    ObjectiveTo evaluate the curative effect of laparoscopic assisted and open D2 radical resection in treatment of advanced gastric cancer. MethodsThe clinical data of 76 cases performed by laparoscopic assisted D2 radical resection (laparoscopic group) and 104 cases performed by open operation (open group) from October 2010 to October 2012 in our center were retrospective analized.Operation related index, postoperative recovery, and extent of radical resection of tumor of 2 groups were compared. ResultsThe operative time of the laparoscopic group[(192.5±14.8) min]was longer than that open group[(171.5±16.5) min, P < 0.05].But the blood loss, postoperative drainage, length of incision, and hospital stay of the laparoscopic group were significantly less or shorter than those of open group (P < 0.05).There were no significant difference in postoperative complications and extent of radical resection of tumor between the 2 groups (P > 0.05).There were no residual tumor in distal margin and operatiive death case in both 2 groups. ConclusionComparing with open operation, the laparoscopic assisted surgery for advanced gastric cancer could achieve the same clinical outcomes, and obvious advantage of minimal invasion.

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  • Comparative study of clinical features and vascular risk factors in patients with unexplained non-acute dizziness and headache in cerebrovascular disease clinic

    Objective To analyze the difference of clinical characteristics and vascular risk factors between patients with unexplained non-acute dizziness and headache, so that to bring new perspective on prevention of vascular risk factors and enhancement of symptoms among different patients. Methods The data of patients in the cerebrovascular disease clinic of the Department of Neurology, West China Hospital of Sichuan University between July 1th and September 30th, 2021 were collected retrospectively. The included patients were divided into dizziness group or headache group according to the complained. The clinical characteristics and risk factors of the two groups were compared. Results A total of 273 patients were included. There were 198 cases (72.5%) in dizziness group and 75 cases (27.5%) in headache group. Compared with headache group, patients in dizziness group were older, with a shorter course of disease, and accounted for a higher proportion of patients with symptoms related to body position, higher proportion of patients with hypertension and carotid plaque, and more vascular risk factors (P<0.05). Logistic regression results showed that patients with symptoms related to body position [odds ratio (OR)=7.025, 95% confidence interval (CI) (1.772, 28.488), P=0.007], at least one [OR=2.461, 95%CI (1.298, 4.664), P=0.006], two or more vascular risk factors [OR=2.314, 95%CI (1.033, 5.186), P=0.042] were independently associated with dizziness. The longer course of disease [OR=0.994, 95%CI (0.990, 0.997), P=0.001] was independently associated with headache. Conclusion Patients with non-acute unexplained dizziness and headache, especially those with dizziness, should pay more attention to the inquiry and treatment of vascular risk factors and psychopsychological factors.

    Release date:2022-07-28 02:02 Export PDF Favorites Scan
  • Assessment of optic disc and retinal nerve fiber layer in normal-tension glaucoma and high-tension glaucoma patients

    Purpose To evaluate differences in the pattern of optic disc and retinal nerve fiber layer (RNFL) damage in normal-tension glaucoma (NTG) and high-tension glaucoma (HTG) patients. Methods We enrolled 49 eyes of 49 patients:30 NTG (IOP≤21 mm Hg,1 mm Hg=0.133 kPa), 19 HTG(IOP≥25 mm Hg). Mean age was 59.2±12.3 (range, 36-75) for HTG patients, and 59.6±8.6(range, 39-71) for NTG patients. All patients underwent complete ophthalmic examination, achromatic automated perimetry (AAP), scanning laser ophthalmoscopy (SLO), scanning laser polarimetry (SLP), optical coherence tomography (OCT) and Heidelberg retinal tomography (HRT). All patients had glaucomatous optic nerve damage and abnormal AAP. Results There were no differences in mean deviation on AAP between NTG and HTG eyes (P=0.37), while the corrected pattern standard deviation was larger in NTG than in HTG eyes (P=0.014). Cup∶disc area ratios in global (P=0.03) and three sectors (Plt;0.05) except nasal sector were significantly larger in the NTG group, whereas rim area in global (P=0.03) and three sectors (Plt;0.05) except nasal quadrant obtained by SLO were smaller in NTG than in HTG eyes. The other numerical parameters obtained by three imaging technologies could not detect differences in the optic disc or RNFL anatomy between the two groups. Conclusions Cup∶disc area ratio was larger in patients with NTG than in those with HTG, whereas significant thinning of rim was associated with NTG eyes. The measurement of retinal nerve layer thickness in global and each quadrant was similar between two groups. More focal or segmental analysis of the data contained within SLO, SLP and OCT images are needed to detect localized differences in eyes with varying levels of IOP. (Chin J Ocul Fundus Dis, 2002, 18: 109-112)

    Release date:2016-09-02 06:01 Export PDF Favorites Scan
  • 中心性浆液性脉络膜视网膜病变的多焦视网膜电图改变

    Release date:2016-09-02 06:03 Export PDF Favorites Scan
  • COMPREHENSIVE EVALUATION OF EFFECTIVENESS OF LAPAROSCOPIC CHOLECYSTECTOMY

    BY the method of clinical epidemiology and evaluation ,the comprehensive evaluation of laparoscopic cholecystectomy (LC) including safety,effect and satisfaction of patients has been given in this paper. The comparative study was done between the LC and the traditional opened cholocystectomy (OC). The conclusion suggests that this therapy would have evry important significance to improve the efficiency of utility of medical resources and the benefit of health care and the quality of life of the patient. Some information had been furnished in this study to extend laparoscopic operation appropriately in our country.

    Release date:2016-08-29 03:44 Export PDF Favorites Scan
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