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Intravitreal injection of C3F8 in the treatment of vitreomacular traction syndrome

ObjectiveTo evaluate the efficacy of single intravitreal injection of C3F8 in treating vitremacular traction (VMT) syndrome.MethodsA retrospective case series of 38 eyes of 36 patients affected with VMT syndrome in Department of Ophthalmology, Central Theater Command General Hospital from March 2016 to June 2017 were enrolled in this study. There were 16 males (16 eyes) and 20 females (22 eyes), with the mean age of 64.11±9.49 years and the mean courses of 151.55±127.87 days. All the patients received an intravitreal injection of 0.3 ml of 100% C3F8 within one week. The BCVA examination was performed using the international standard visual acuity chart, which was converted into logMAR visual acuity. The severity of metamorphopsia was detected using M-charts. The extent of vitreomacular adhesion (VMA), central macular thickness (CMT) and the status of ellipsoid zone (EZ) were assessed with spectral-domain OCT at baseline and each month after treatment. The average BCVA was 0.58±0.22. The mean horizontal metamorphopsia (MH) and vertical metamorphopsia (MV) were 0.34±0.30 and 0.50±0.42, respectively. The mean CMT was 415.15±89.59 μm. The mean horizontal VMA was 1168.68±400.61 μm (30 eyes with VMA≤1500 μm and 8 eyes with VMA＞1500 μm). The mean vertical VMA was 976.89±295.92 μm. There were 22 eyes with integrity EZ and 16 eyes without integrity EZ, 33 eyes with crystalline lens and 5 eyes with IOL. The mean follow-up time was 10.7 months. The differences in BCVA, MH, MV, CMT, the integrity of EZ before and after treatment were analyzed. The VMT release rates were assessed. The Spearman rank correlation analysis was performed to investigate the relationship of VMT release rates with the data at baseline.ResultsVitreomacular traction release occurred in 29 of 38 eyes by the final follow-up visit, the VMT release rate was 76.3%. VMT release occurred and the average time of VMT release occurred was 2.2 weeks. VMT persisted in 7 eyes, in the rest two eyes, one eye developed a retinal detachment and another eye formed macular hole, both eyes responded to vitrectomy. At 6 months after treatment, the average logMAR BCVA was 0.43±0.23, the mean MH and MV were 0.25±0.23 and 0.24±0.23, the mean CMT was 310.61±63.10 μm. Among 16 eyes without integrity EZ before treatment, there were 9 eyes with integrity EZ at 6 months after treatment. There were 16 eyes with integrity EZ and 9 Compared with baseline, the mean BCVA at 6 months after treatment was significantly increased (F=3.779, P=0.037), but the MV (F=4.958, P =0.003) and CMT (F=13.419, P＜0.001) were significantly decreased, the integrity of EZ was improved significantly (χ2=5.050, P=0.025). The VMT release correlated inversely with the extent of horizontal VMA, BCVA, and CMT at baseline (r=-0.514, -0.348, -0.429; P=0.009, 0.001, 0.038).ConclusionIntravitreal injection of C3F8 can induce a posterior vitreous detachment and release vitreomacular traction, it is an efficient and safe treatment for VMT syndrome. It can improve the visual acuity, metamorphopsia and foveal morphology in patients with VMT syndrome.

MRI Manifestations of Internal Carotid Artery Dissection and Its Treatment Outcomes

ObjectiveTo investigate the MRI manifestations of internal carotid artery dissection (ICAD) before and after treatment. MethodsMRI materials of 20 patients with ICAD between November 2007 and February 2013 were collected for analysis. ResultsMRI manifestations of ICAD showed 17 cases of artery stenosis, 16 cases of mural hematoma or thrombus, 3 cases of aneurysmal dilatation, and 2 cases of lines of intimal flap. The treatment outcome MRI manifestations showed that 18 patients had effective response, including disappeared (n=9) and lessened (n=8) artery stenosis, disappeared (n=13) and diminished (n=3) hematoma and thrombus, and shrunken aneurysmal dilatation (n=1); and there were 2 cases of unchanged aneurysmal dilatation, and another 2 patients had aneurysmal dilatation while stenosis lessened. ConclusionMRI manifestations of internal carotid artery dissection mainly include stenosis, mural hematoma or thrombus, and aneurysmal dilatation. Stenosis, mural hematoma or thrombus usually disappear and lessen in the treatment, and all MRI findings may vary among each other.

Investigation of therapy for retinal angiomatosis

Objective To investigate the therapeutic effects of retinal angiomatosis in different clinical stages. To discuss the indication of vitrectomy for retinal hemangioblastoma. Methods The clinical data of 22 cases (33 eyes) were retrospectively analyzed. The retinal hemangiomas were divided into 5 stages according to their degrees of development from simple angioma without vessel dilation to feeder vessel dilation and intra-retinal exudates, local retinal detachment, massive retinal detachment and co mplication occurrence in proper order. The methods of treatment were laser photo coagulation, trans－scleral cryotherapy and vitrectomy. 13 eyes were treated with laser photocoagulation, 5 eyes with cryotherapy combined with laser and 11 eye s with vitrectomy. Tumor resection and silicone oil tamponade was performed in 3 eyes during vitrectomy. The patients were followed up for 46 months on average. Visual acuity (VA), the condition of the hemangioma and retina was compared pre- and post-operation respectively. Results In all 13 eyes treated with laser photocoagulation the hemangiomas regressed and the retina remained attached. VA improved in 2 eyes, and remained unchanged in 11 eyes. Cryother apy combined with laser photocoagulation was performed on 5 eyes. In this group, 4 eyesprime; hemangiomas regressed and no new hemangiomas occurred, proliferative vitreous retinopathy and vitreous hemorrhage was observed in 1 eye which vitrecto my was performed later. VA improved in 2 eyes, unchanged in 2 eyes and decreased in 1 eye. In the 11 eyes treated with vitreoretinal surgery, new hemangiomas wa s found in 1 eye, exudative retinal detachment was caused by hemangiomas in 2 eyes, proliferative vitreous retinopathy was observed in 2 eyes, and the retina re mained attached in 8 eyes. VA improved in 3 eyes, unimproved in 3 eyes, and decreased in 5 eyes. In the 3 eyes with surgical resection of retinal hemangioma during vitrectomy, 2 eyesprime; retina remained attached, 1 eye had exu dative retinal detachment and no new hemangiomas occurred. VA improved in 2 eyes and decreased in 1 eye. Conclusions Laser photocoagulation or combined with cryotherapy is effective in treating the hemangiomas in early stage. Vitrectomy is advisable for late stage of retinal angiomatosis, especially with vitreous hemorrhage, epiretinal membrane, proliferation and large scale of r etinal detachment. Surgical resection of isolated large retinal hemangioblastoma may be useful for selected patients. (Chin J Ocul Fundus Dis,2008,24:107-110)

Comparison of yellow micro pulse photocoagulation and traditional laser grid photocoagulation for diabetic macular edema

Objective To compare the clinical results of yellow micro-pulse laser and traditional laser grid (MLG) photocoagulation for diabetic macular edema (DME). Methods Seventy-eight patients (106 eyes) with DME diagnosed by fundus fluorescein angiography (FFA) and optical coherence tomography (OCT) were enrolled in this study. The patients were divided into micro-pulse group (39 patients, 51 eyes) and MLG group (39 patients, 55 eyes). The patients of micropulse group underwent 577 nm yellow micro-pulse laser therapy, while the patients of MLG group underwent continuous wavelength laser photocoagulation with a 561 nm yellow green laser. All the patients were examined documenting corrected visual acuity, macular retinal thickness (CMT) and mean sensitivity within macular 10 deg; examination before and after treatment. Six months after treatment was considered as the judgment time for the therapeutic effects. The mean corrected visual acuity, CMT and MS were comparatively analyzed. Results Six months after treatment, the mean corrected visual acuity of micropulse group and MLG group were 0.45plusmn;0.20 and 0.42plusmn;0.20, which increased significantly compared to those before treatment (t=3.404,2.316; P＜0.05). The difference of mean corrected visual acuity between before and after treatment of micro-pulse group and MLG group were 0.08plusmn;0.02 and 0.06plusmn;0.03, the difference was statistically significant between two groups (t=0.532, P＞0.05). The mean CMT of micropulse group and MLG group were (323.94plusmn;68.30) and (355.85plusmn;115.88) mu;m, which decreased significantly compared to those before treatment (t=4.028, 2.039; P＜0.05). The difference of mean CMT between before and after treatment of micro-pulse group and MLG group were (55.12plusmn;13.68) and (22.25plusmn;10.92) mu;m. The difference was not statistically significant between two groups (t=1.891,P＞0.05). The mean MS of micro-pulse group and MLG group were (6.63plusmn;2.65) and (4.53plusmn;1.81) dB. The mean MS of micro-pulse group increased significantly compared to that before treatment(t=3.335,P＜0.05). The mean MS of MLG group decreased significantly compared to that before treatment (t=3.589,P＜0.05). The difference of mean MS between before and after treatment of micro-pulse group and MLG group were (1.10plusmn;0.33) and (-0.91plusmn;0.25) dB.The difference was statistically significant between groups (t=4.872，P＜0.05). Conclusions In the treatment of DME, yellow micro-pulse laser therapy and MLG can improve visual acuity, and reduce CMT. In addition, yellow micro-pulse laser therapy can improve the MS, but MLG reduces MS.

黄斑中心凹下脉络膜新生血管光动力疗法治疗后黄斑区对比敏感度变化

Mid-term follow-up of dynamic cervical implant replacement for the treatment of single-segmental degenerative cervical disc disease

ObjectiveTo evaluate the mid-term clinical and radiological results of dynamic cervical implant (DCI) arthroplasty for degenerative cervical disc disease in Chinese population.MethodsBetween April 2010 and June 2011, 25 patients with single-segmental degenerative cervical disc disease underwent DCI replacement. Visual Analogue Scale (VAS), Japanese Orthopaedic Association (JOA) scores, Neck Disability Index (NDI) and 36-Item Short Form Health Survey Questionnaires (SF-36) were used for evaluation of neurological function and pain severity, before and after operation, and during follow-up period. Radiographic evaluation included range of motion (ROM) of C2–7, surgical segments and adjacent level, intervertebral height of the surgical segments, migration, subsidence of the implant and heterotopic ossification (HO).ResultsThe mean follow-up period was 72.3 months (ranged from 68 to 78 months). The VAS, JOA, NDI, and SF-36 mental and physical component summaries improved significantly after surgery (P<0.05) and remained stable over the whole observation period. The ROM (flexion/extension) and intervertebral height at the level treated with DCI remained at the first 2 years and partly reduced at the final follow-up. ROM for C2–7 and adjacent levels maintained during the follow-up period. DCI subsidence was observed in 11 segements, and 9 segements appeared heterotopic ossification.ConclusionsClinical efficacy of DCI arthroplasty improves and maintaines during the mid-to-long period of follow-up. HO formation is a common phenomenon, leading a dramatic decrease of ROM at index level and recurrence of neurological symptoms. Rate of implant subsidence and migration is relatively high, leaving a potential risk of symptom at index level and adjacent segment degeneration. It suggests that for patients with degenerative cervical disc disease, total disc replacement or anterior cervical discectomy and fusion is still the first choice instead of DCI arthroplasty.

Laparoscopic Operation of Gastric and Gastroesophageal Junction Disease (Report of 59 Cases)

Objective To investigate the feasibility and safety of laparoscopic operation of gastric and gastroesophageal junction diseases. Methods Between May 2004 and June 2009, 59 patients with gastric and gastroesophageal diseases were treated laparoscopically. The operative methods and maneuvers were evaluated and perioperative interventions, complications and efficacy of patients were analyzed. Results All operations were successfully completed laparoscopically except for one patient with gastric cancer who required a conversion to open surgery. No short-term complications occurred in all cases. No port transplant metastasis occurred for the patients with gastric cancer after an average of 36 months (1-60 months) follow-up. One patient died of liver metastasis 12 months after operation. The 3-year survival rate was 93.3% (14/15). Conclusion Laparoscopic surgery of the gastric and gastroesophageal junction diseases is feasible and safe with minimal invasiveness, which is worth popularizing.

Treatment outcomes of reduced-dose intravitreal ganciclovir for acquired immunodeficiency syndrome patients with cytomegalovirus retinitis

ObjectiveTo evaluate the efficacy and safety of reduced-dose intravitreal ganciclovir for the treatment of acquired immunodeficiency syndrome (AIDS) patients with cytomegalovirus retinitis (CMVR).MethodsA prospective observational cohort study observed 15 AIDS patients (28 eyes) who suffered from CMVR onset between January 2016 and December 2018 at Nanning Aier Eye Hospital. Among this 28 eyes, BCVA of 6 eyes (21.4%) were between moving hand to counting finger, 15 eyes (53.6%) were between 0.02 to 0.1 and 7 eyes were better than 0.1 (25.0%). All eyes received intravitreal injection 0.1 ml of ganciclovir at 4 mg/ml (contain ganciclovir 0.4 mg). The induction regimen was twice weekly for 2 weeks and a maintenance period of the same dose weekly. The mean number of injections was 7.1±1.7 times. For hospitalized patients who had no contraindicated received a 14-day twice daily intravenous ganciclovir (IVG) 5.0 mg/kg·d until complete resolution of CMVR. All patients were divided into intravitreal ganciclovir (IVTG) group and IVTG+IVG group according to different treatment plans, which were 5 cases with 8 eyes and 10 cases with 20 eyes, respectively. The follow-up was more than 6 months. BCVA, complete resolution or stable of the lesion and complications were observed.ResultsSix months later, 20 eyes (71.4%) had a obvious reduced or disappeared of the anterior chamber and vitreous inflammation, and the retinal lesions became stable or complete resolution. 24 eyes showed improvements of BCVA and 4 eyes showed stable. 2 eyes (7.1%) presented with BCVA ≤ counting finger, 7 eyes (25.0%) were 0.02 - 0.1 and 19 eyes were ≥ 0.1 (67.9%). Compared with before treatment, the ratio of BCVA that less than or equal to counting finger and between 0.02 to 0.1 decreased (21.4% vs 7.1% and 53.6% vs 25.0%, respectively), but the ratio of BCVA better than 0.1 increased (25.0% vs 67.9%). When IVTG+IVG group was compared with IVTG group, the average time-to-resolution of CMVR were 83.2±25.2 and 85.3±24.4 days respectively. There was no significant difference in resolution times (Z=0.17, P=0.87). The ratio of retinal lesions became stable or complete resolution were 75.0% (15 eyes) and 62.5% (5 eyes), there was no evident difference in time-to-resolution between the two groups (F=0.42, P=0.51). No recurrence was seen during the follow-up period. In cases of unilateral CMVR, there were no patients with a second eye involvement during the follow-up period. No endophthalmitis, vitreous hemorrhage, retinal detachment were found in our study.ConclusionReduced-dose intravitreal ganciclovir is a safe and effective treatment option for CMVR.

Retrospective study of 30% and 50% dose verteporfin photodynamic therapy versus anti-vascular endothelial growth factor for chronic central serous chorioretinopathy

ObjectiveTo compare the efficacy among 30% and 50% dose of verteporfin photodynamic therapy (PDT) and intravitreal anti-vascular endothelial growth factor (anti-VEGF) in the treatment of chronic central serous chorioretinopathy (CSC). Methods138 eyes of 125 patients with chronic CSC, who were treated in our hospital from March 2006 to May 2014, were enrolled in this retrospective study. All patients were confirmed by spectral domain optical coherence tomography (SD-OCT) and best corrected visual acuity (BCVA), which was recorded with logMAR BCVA. And all the patients were divided into three groups by different treatments: 30% dose group (42 eyes of 39 patients); 50% dose group (77 eyes of 67 patients); anti-VEGF group (19 eyes of 19 patients). The differences of age, gender, eyes, courses, mean logMAR BCVA among three groups were not significant. Disappearing of fluid under retina in SD-OCT was considered to be cured and fluid remaining was not cured. If fluid appeared again the eyes were relapsed. We comparatively analyzed the cure rate, relapse rate and changing of BCVA, central macular thickness (CMT) among 3 groups of patients after 1, 3, 6 months. ResultsThe cure rate among 3 groups after 1 month was statistically different (χ2=6.926, P=0.031). The cure rates of 50% dose PDT treatment group after 3 months and 6 months were better than 30% dose PDT treatment group, but the differences were not significant (χ2=2.218, 1.682; P=0.136, 0.195). The relapse rate between 30% dose and 50% dose PDT treatment groups after 3 months and 6 months were not significant (χ2=2.133, 3.366; P=0.144, 0.067). The improvement of BCVA in 50% dose PDT treatment group was the best, but comparing with the other two groups, the differences were not significant in statistics (P > 0.05). The improvement of CMT in 50% dose PDT treatment group was the best. Comparing with anti-VEGF group, the differences was significant (P < 0.05). But comparing with 30% dose PDT treatment group, the differences was not significant (P > 0.05). Logistic regression analysis showed that after treatment, the cure rates after 1 month and 6 months were negatively correlated with the age (regression coefficient=-0.942, -0.979; odds ratio=0.390, 0.375; P < 0.05) and the cure rates after 3 months was positively correlated with the dose of verteporfin (regression coefficient=0.855, odds ratio=2.351, P < 0.05). Conclusion50% dose verteporfin PDT is recommend for chronic CSC treatment.

Therapeutic effect of photodynamic therapy and transpupillary thermotherapy on circumscribed choroid hemangioma

Objective　To observe the therapeutic effect of photodynamic therapy (PDT) and transpupillary thermotherapy (TTT) on circumscribed choroid hemangioma (CCH).Methods　Clinical data of 32 patients (33 eyes) with CCH diagnosed by ocular fundus examination, fundus fluorescein angiography (FFA),indocyanine green angiography (ICGA),optical coherence tomography (OCT) and Bultrasound examination were retrospectively analyzed.Before the therapy the selected cases had best corrected visual acuity (BCVA) of fingercounting/15 cm-0.2,the sizes of 2-10 disc diameter (DD) and serous retinal detachment.Twentyone patients (22 eyes) whose tumor located at the posterior pole except for the papillomacular bundle and arch ring area underwent TTT.The parameters of TTT included: Iris 810 nm infra red diode laser，7001200 mW,60 s,and 1-3 spots. Eleven patients (11 eyes) with tumor located at the posterior pole except for the papillomacular bundle and arch ring area underwent. After 15 minutes of intravenous injection with Visudyne, laser irradiation with the wavelength of 689 nm was performed with the time of 83-123 s. The followup period was 12-48 months with the mean of 25.6 months.BCVA and results of indirect ophthalmoscopy,fundus photogrphy,FFA,ICGA,OCT and B ultrasound examination were exanmined and anlyzed.Results　In the 22 eyes in TTT group, the BCVA improved in 15 and kept unchanged in 7;the results of fundus examinations showed healed retina and atrophy tumor with greywhite organized scar;the results of FFA revealed no fluorescence leakage and scar fluorescence dyeing of the lesion in later period；the results of OCT indicated disappeared retinal detachment, completely absorbed subretinal liquid and increased reflection of choroid tumor with scar；the results of Bultrasound examination showed no retinal detachment and atrophy tumor.In 11 eyes in PDT group,the BCVA improved in 9, unchanged in 2;the results of fundus examinations showed atrophy tumor with pigmentation；the results of FFA revealed disappeared fluorescence leakage；the results of OCT indicated completely absorbed subretinal liquid；the results of B-ultrasound examination showed atrophy tumor.Conclusions　Both TTT and PDT can make the tumor atrophy,improve BCVA or keep it still;but apply to different area.