Objective To observe the therapeutic effects of vitrectomy combined with tissue plasminogen activator(r-tPA) and fraxiparine on bacterial endophthalmitis. Methods Forty pigmented rabbits were randomly divided into experimental and control group with 20 rabbits in each. The left eyes underwent intra-vitreous injection with 10 5/ml bacteria of staphylococcus epidermidis 0.1 ml. After 8-4 hours, vitrectomy was performed on all of the animals. Fraxiparine with the final concentration of 6 IU/ml was only added to balanced salt solution in the experimental group during the operation, and the extend of intraocular fibrin exudation was observed by slit lamp and indirect ophthalmoscope after the operation. If the exudation occurred on the 1st, 3rd, 7th, 14th and 21st day postoperatively, 125 mg/ml r-tPA 0.1 ml should be injected into vitreous from the 1st day after operation on. Results Fibrin exudation in the pupil area and vitreous body was much less in experimental group than that in the control group after the surgery. Conclusion vitrectomy combined with r-tPA and fraxiparine may alleviate the extent of fibrosis in bacterial endophthalmitis and improve the prognosis. (Chin J Ocul Fundus Dis, 2005, 21: 391-393)
Ocular trauma is the most common cause of monocular vision loss in children. Among the patients with eye trauma in China, 15%-20% are children. The complexity of diagnosis and treatment and the uncertainty of prognosis are high because the ocular tissue of children is not fully developed and the history collection and examination are difficult. In order to further standardize the treatment of children's eye trauma and improve the treatment level, China Ocular Trauma Society has formulated Expert consensus of the treatment of pediatric ocular trauma in China by combining domestic and foreign literature and the actual medical situation in China. This consensus provides detailed recommendations on the classification, cause of injury, history collection, examination methods, diagnosis and treatment principles of pediatric eye trauma. This consensus applies to Chinese ophthalmologists and medical personnel engaged in the treatment of children's eye trauma, aiming to provide scientific guidance for the diagnosis and treatment of children's eye trauma, assist clinical decision-making, and further improve the treatment level of children's eye trauma in China.
Objective To analyze the results of diagnostic pars plana vitrectomy (PPV) in patients with uveitis of unknown cause. Methods This is a retrospective case series study. Sixty-five patients (67 eyes) with uveitis of unknown cause were enrolled in this study. There were 31 males (32 eyes) and 34 females (35 eyes). The ages were from 6 to 84 years, with the mean age of (55.00±18.56) years. All eyes were received PPV. Examination of vitreous samples consisted of microbial stains and culture, microbial DNA and antibody detection, cytokine measurement, cytology, flow cytometry and gene rearrangement detection. Results Vitreous analysis was positive in 40 of 67 eyes (59.7%). Positive results indicated bacterial endophthalmitis in 20 of 40 eyes (50.0%), lymphoma in 11 eyes (27.5%), viral IgM and IgG increased significantly in 3 eyes (7.5%), fungal endophthalmitis in 3 eyes (7.5%), IgG of toxocara increased significantly in 2 eyes (5.0%), IgG of toxoplasma Gondii increased significantly in 1 eye (2.5%). Conclusion The diagnostic yield of vitreous samples in uveitis eyes of unknown cause is 59.7%.
Objective To observe the effects of vitrectomy combined with endotamponade on severe endophthalmitis. Methods The clinical data of 44 patients (44 eyes) of posttraumatic and 22 patients (22 eyes) of postoperative severe endophthalmitis were retrospectively analyzed. All patients were treated by vitrectomy and endotamponade. Intraocular foreign body removal (19 eyes), lens extraction (25 eyes), intraocular lens removal (six eyes) and scleral buckling (16 eyes) were performed. Tamponade with silicone oil (52 eyes) or C3F8 gas (14 eyes) was also performed. Postoperative follow-up ranged from two to 25 months, with the mean of 7-9 months. The visual acuity（VA）and intraocular pressure before and after surgery were comparatively analyzed. Results Inflammation of all the patients were controlled，the effective rate was 5.10%. There was no recurrence and retinal detachment. Among the 66 eyes, postoperative VA of 58 eyes (87.90%) increased,five eyes（7.60%）didn't change and three eyes（4.55%）decreased, the difference was statistically significant（chi;2=45.27，P＜0.05）. The postoperative intraocular pressure was higher than that before surgery，the difference was statistically significant（t=-3.23，P＜0.05）. Conclusions Vitrectomy combined with endotamponade is an effective way to cure severe endophthalmitis. It can improve the visual acuity and intraocular pressure.
ObjectiveTo investigate the clinical settings, antibiotic susceptibilities, management and outcomes of streptococcal endophthalmitis. MethodsA retrospective observational case series study. Fifty six eyes of 56 patients diagnosed with streptococcal endophthalmitis in Eye & ENT Hospital, Fudan University from 2012 to 2022 were collected. The treatment followed the general principles of relevant guidelines, including pars plana vitrectomy (PPV), vitreous injection of antibiotics (IVI), vitreous injection of glucocorticoids and systemic application of antibiotics. The follow-up time was (11.9±17.0) months. Patients' clinical characteristics, pathogenic distribution and antibiotic susceptibilities, treatment and outcomes in their medical records were retrospectively collected and analyzed. ResultsAll 56 patients had monocular onset, including 39 (69.6%, 39/56) males and 17 (30.4%, 17/56) females, 26 (46.4%, 26/56) with left eyes involved and 30 (53.6%, 30/56) with right eyes involved. Their average age was (25.0±24.4) years. Ocular trauma was the leading cause of streptococcal endophthalmitis (73.2%, 41/56), followed by ophthalmic surgery (23.2%, 13/56) and endogenous infection (3.6%, 2/56). The streptococcal species included Streptococcus viridans (50.0%, 28/56), Streptococcus pneumoniae (18/56, 32.1%) and β-hemolytic Streptococcus (17.9%, 10/56). The susceptibility rates of Streptococcus to penicillin, cefatriaxone, vancomycin and levofloxacin were 66.0%, 57.1%, 94.1% and 92.4%, respectively. Patients received PPV+IVI and IVI as initial treatment were 49 eyes (87.5%, 49/56) and 7 eyes (12.5%, 7/56), respectively. Vitreous injection of glucocorticoids were performed in 17 eyes (30.4%, 17/56); and systemic antibiotics were applied in 52 cases (92.9%, 52/56). At the final follow-up, 47 eyes were recorded with visual acuity. Twenty (35.7%, 20/56) had best corrected visual acuity (BCVA)≥0.05 and 27 (48.2%, 27/56) had BCVA ＜0.05, of which 1 (1.8%, 1/56) had an eyeball enucleation. The etiology of endophthalmitis, streptococcal species, initial treatment with PPV, vitreous injection of glucocorticoids, and systemic antibiotics did not significantly affect patients' visual outcomes (P＞0.05). Timely visit to the hospital after the onset of symptoms (≤3 days) was significantly associated with achieving a final BCVA above 0.05 (P=0.025). ConclusionsOcular trauma was the primary cause of streptococcal endophthalmitis. Streptococcus viridans is the most common pathogenic bacterium. Streptococci had high susceptibility to vancomycin, but patients' visual outcomes were poor.
Endophthalmitis caused by intravitreal injection is a rare disease which impair patients’s vision. In recent years, with the increase of the diseases and frequency of intravitreal injections, the incidence of endophthalmitis has increased. Standardizing each step of intravitreal injections is an important method to reduce postoperative endophthalmitis. Despite the current availability of prevention strategies providing by a lot of clinical trials, there are considerable variations and a lack of consensus and inconsistencies in clinical practice. Understanding the existing key measures, standardizing the operation of intravitreal injection in my country, and minimizing the incidence of infective endophthalmitis are of positive significance for improving the treatment of ophthalmology, especially fundus diseases.
Objective To review the distribution and shifting trends of cultured bacteria from the aqueous humor and the vitreous body. Methods A retrospective analysis on distribution of Gram′s stain, the distribution and change of isolates was performed in 522 specimens (aqueous humor,261 and vitreous body,261) of patients with suspected endophthalmitis during a 10-year period (1989-1998). Results The positive cultures were 119 (aqueous humor,44 and vitreous body,75) of 522 specimens. The average positive rate was 22.8%. Gram-positive cocci constituting 45.4%(54) of total isolates followed by Gram-negative bacilli,34.5%(41);Gram-positive bacilli, 20.2%(24). In the positive bacterial cultures, enterobacteriaceae was the most common isolate, 18.5%, and the next was micrococcus, 16.0%; coagulase-negative staphylococcus,12.6%; and pseudomonas,10.9%.Comparing the data from 1989 through 1993 with the data from 1994 through 1998, the frequency of Gram-positive cocci had no significant change, while the frequency of Gram-positive bacilli was decreased and the percentage of Gram′s-negative bacilli was increased. Conclusions Gram-positive cocci and Gram-negative bacilli are the predominant pathogens of bacterial endophthalmitis. The percentage of Gram′s-negative bacilli has increased for 5 years. It is very important to comprehend the distribution and shifting trends of these pathogenic bacteria for diagnosis, prevention and treatment of bacterial endophthalmitis. (Chin J Ocul Fundus Dis, 2002, 18: 104-105)
ObjectiveTo analyse the effect of vitrectomy in diagnosing and treating endogenous endophthalmitis. MethodsThe effects of treatment, prognosis and the final follow-up visual acuity of 22 patients (30 eyes) with endogenous endophthalmitis diagnosed in our hospital from Jan 2000 to Dec 2003 were retrospectively reviewed.ResultsIn 21 patients who underwent blood or vitreous body smear and culture, 18 (86%) had a positive result, including bacteria in 6, fungi in 11, and mixed infection in 1. In 16 patients who had complete follow-up data, successful vitrectomy were performed on 13 (81.3%) including 6 with functional success.ConclusionVitrectomy may improve the positive rate of culture and vision prognosis in patients with endogenous endophthalmitis.(Chin J Ocul Fundus Dis, 2005,21:142-144)
ObjectiveTo analyze pathogenic factors and etiological characteristics of suppurative endophthalmitis.MethodsA total of 531 consecutive patients (531 eyes) with suppurative endophthalmitis who were hospitalized in Qingdao Eye Hospital of Shandong Eye Institute from January 2006 to December 2015 were included in the study. Among them, 410 patients with 410 eyes were males (77.2%), 121 patients with 121 eyes were females (22.8%). The average age of the patients was 38.62±15.36 years. The relevant medical records were collected to analyze the pathogenic factors. Samples of aqueous humor, vitreous or other intraocular samples were taken under aseptic conditions for bacterial and fungal culture and in vitro drug sensitivity test.ResultsOcular trauma was the primary pathogenic factor of suppurative endophthalmitis (60.1%), other factors included postoperative endophthalmitis (19.0%), suppurative keratitis-related endophthalmitis (17.1%) and endogenous endophthalmitis (3.8%). Postoperative endophthalmitis mainly occured after cataract surgery. A total of 224 strains of organisms were isolated, among which the predominant organisms isolated were gram-positive bacteria (54.0%) and staphylococcus epidermidis was the most common (25.0%). The other pathogenic organisms were fungi (29.5%) and gram-negative bacteria (16.5%). Among the fungi, aspergillus (10.7%) was the dominant genus, followed by fusarium (9.8%). For gram-positive organisms, susceptibilities were vancomycin 97.4%, gatifloxacin 91.8%, fusidate acid 77.9% and levofloxacin 54.6%. For gram-negative organisms, susceptibilities were gatifloxacin 85.7%, levofloxacin 77.8%, tobramycin 71.4% and ceftazidime 62.5%. For fungal isolates, sensitivities were voriconazole 88.2% and amphotericin B 84.8%.ConclusionsOcular trauma is the main pathogenic factor of suppurative endophthalmitis, followed by postoperative endophthalmitis and suppurative keratitis-related endophthalmitis. Gram-positive bacteria are the major pathogenic organisms, especially staphylococcus epidermidis followed by fungal species, among which aspergillus and fusarium were the dominating pathogenic genus.
Objective To investigate the etiological factors of endophthalmitis and evaluate the outcomes of vitrectomy for endophthalmitis.Methods From January 1999 to December 2001, 53 consecutive patients (54 eyes ), 38 men and 15 women, diagnosed as endophthalmitis were retrospectively evaluated. The patients′ ages ranged from 1 year to 74 years (mean 32 years). Two patients (2 eyes) with mild inflammation received antibiotic medication therapy, 5 patients (5 eyes) with no light perception and severe inflammation underwent evisceration, and the other 46 patients (47 eyes) underwent pars plana vitrectomy. Postoperative follow-up ranged from 2 to 32 months (mean 10.5 months). Results Endophthalmitis was diagnosed as resulting from penetrating injury in 32 eyes (59.26%), endogenous endophthalmitis in 8 eyes (14.81%), cataract surgery in 7 eyes (12.96%), gl au coma surgery in 2 eyes (3.70%), vitrectomy in 3 eyes (5.56%), radial keratotomy in 1 eye (1.85%), and unknown reason in 1 eye (1.85%). The postoperative visual a cuities (VA) of these patients increased significantly (P=0.003). The VA of the patients underwent vitrectomy in 3 days was obviously better than those after 3 days (P=0.014), and the VA of the patients underwent vitrectomy in 7 days was obviously beter than those after 7 days (P=0.021). Thirty-seven eyes (68.52 %) had functional success (VA≥0.02), 47 eyes (87.04%) had anatomical success (VAlt;0.02) , and 27 eyes (50.00%) were out of blindness (VA≥0.05). Conclusions Penetrating ocular injury, especially with retained intraocular foreign bodies, is the most common cause of suppurative endophthalmitis. Vitrectomy is a good method for the treatment of endophthalmitis. (Chin J Ocul Fundus Dis，2003，19：93-95)