1.Maintenance treatment of multiple myeloma-review.
Journal of Experimental Hematology 2009;17(4):1111-1117
Chemotherapy with traditional standard dose or autologous stem cell transplantation (ASCT) after chemotherapy with high dose have some remission effect for multiple myeloma, but relapse still exists. The maintenance treatment would prolonged the remission stage. These treatments included the use of alkylating agent, interferon, corticosteroids, thalidomide and so on. Every maintenance treatment has some advantages and some side effects. The truly effective maintenance treatment would not only minimize the harm of the disease, but also would prolong the overall survival, progression-free survival and the event-free survival. This article summarizes the current progress in the maintenance treatments for multiple myeloma.
Alkylating Agents
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administration & dosage
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therapeutic use
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Glucocorticoids
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administration & dosage
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therapeutic use
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Humans
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Interferons
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administration & dosage
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therapeutic use
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Multiple Myeloma
;
drug therapy
2.Orthogonal experiments for optimizing the formulation and preparation conditions of temozolomide solid lipid nanoparticles.
Mingjin DOU ; Guihua HUANG ; Yanwei XI ; Na ZHANG
Journal of Biomedical Engineering 2008;25(5):1141-1145
TMZ-SLN were prepared by emulsification-low temperature solidification method with stearic acid. The formulation and the preparation conditions were optimized by orthogonal experiments using entrapment efficiency as the evaluation index. The morphology was detected by transmission electron microscope. The Zeta potentials and the particle size distribution were evaluated by Laser Doppler Anemometry. The entrapment efficiencies and the drug release characteristics in vitro were assessed. The result showed that TMZ-SLN were concinnous and spherical in shape. The mean diameter (d(av) ) was 65.0 +/- 6.2 nm and the Zeta potential was -37.2 mV. The average entrapment efficiency was 58.9% +/- 1.21 %. The drug release behavior in vitro conformed to Higuchi Equation. The formation of a new material phase was testified by analysis of differential scanning calorimetry.
Antineoplastic Agents, Alkylating
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administration & dosage
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chemistry
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Dacarbazine
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administration & dosage
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analogs & derivatives
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chemistry
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Drug Carriers
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chemistry
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Lipids
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chemistry
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Nanoparticles
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chemistry
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Particle Size
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Stearic Acids
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chemistry
4.Clinical Result of Prolonged Primary Chemotherapy in Retinoblastoma Patients.
Jeong Hun KIM ; Young Suk YU ; Sang In KHWARG ; Hyoung Soo CHOI ; Hee Young SHIN ; Hyo Seop AHN
Korean Journal of Ophthalmology 2003;17(1):35-43
This study evaluated the effects of prolonged primary chemotherapy in retinoblastoma. The data for 27 eyes in 22 children who were treated for retinoblastoma with up to 13 cycles of primary chemotherapy was reviewed. The chemotherapy consisted of etoposide, vincristine, and either carboplatin or ifosfamide. In bilateral retinoblastoma, 1 eye was in each Ia, Ib, and Va, according to the Reese-Ellsworth classification, 2 in each IIa, IIIa, and IIIb, 4 in IIb, and 5 in IVa. Enucleation was performed in 1 in IIa and 1 in Va. In unilateral, 1 was in each IIa, IIIa, IVa, IVb, and Vb, and 4 in Va. Enucleation was performed in 8 with the exception of 1 in IIa. Complete regression was observed in 17 eyes (12 patients). There was no toxicity severe enough to delay treatment. Prolonged primary chemotherapy can be considered as an alternative treatment for retinoblastoma in III or less.
Antineoplastic Agents/administration& dosage
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Antineoplastic Agents, Alkylating/administration& dosage
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Antineoplastic Agents, Phytogenic/administration& dosage
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Antineoplastic Combined Chemotherapy Protocols/*administration& dosage
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Carboplatin/administration& dosage
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Child, Preschool
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Drug Administration Schedule
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Etoposide/administration& dosage
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Eye Enucleation
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Human
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Ifosfamide/administration& dosage
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Infant
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Retinal Neoplasms/*drug therapy/surgery/ultrasonography
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Retinoblastoma/*drug therapy/surgery/ultrasonography
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Retrospective Studies
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Vincristine/administration& dosage
5.Is the Low-Thalidomide Dose MPT Regimen Beneficial?.
The Korean Journal of Internal Medicine 2011;26(4):400-402
No abstract available.
Angiogenesis Inhibitors/administration & dosage/*therapeutic use
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Antineoplastic Agents, Alkylating/administration & dosage/*therapeutic use
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Humans
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Melphalan/administration & dosage/*therapeutic use
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Multiple Myeloma/*drug therapy
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Prednisone/therapeutic use
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Thalidomide/administration & dosage/*therapeutic use
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Treatment Outcome
6.Intranasal administration of temozolomide for brain-targeting delivery: therapeutic effect on glioma in rats.
Ying LI ; Yongliang GAO ; Gang LIU ; Xiudi ZHOU ; Yan WANG ; Yulin WANG ; Lin MA
Journal of Southern Medical University 2014;34(5):631-635
OBJECTIVETo study the therapeutic effect of intranasal administration of temozolomide (TMZ) for brain-targeting delivery in a rat model bearing orthotopic C6 glioma xenografts.
METHODSForty Wistar rat bearing brain C6 glioma xenograft were randomly divided into 4 groups and treated with physiological saline solution or with TMZ by intravenous injection, gavage or intranasal administration. The tumor size, rat survival time and pathological changes were observed in each group.
RESULTSMagnetic resonance imaging showed a significantly reduced volume of glioma in intranasal TMZ group compared with that in the control, intraveneous TMZ injection group and TMZ gavage groups (12.45∓2.49 mm(3) vs 60.16∓4.12, 33.17∓3.56, and 35.16∓4.36 mm(3), respectively, P<0.05). The median survival time of the C6 glioma-bearing rats was also significantly longer in intranasal TMZ group than in the other 3 groups (31.0 days vs 20, 19, and 21.5 days, respectively, P<0.05). In the glioma xenografts, PCNA expression was the lowest and tumor cell apoptosis rate the highest in intranasal TMZ group.
CONCLUSIONIntranasal TMZ administration can suppress the growth of C6 glioma in rats and may serve as an effective strategy for glioma treatment.
Administration, Intranasal ; Animals ; Antineoplastic Agents, Alkylating ; administration & dosage ; Apoptosis ; Brain Neoplasms ; drug therapy ; Cell Line, Tumor ; Dacarbazine ; administration & dosage ; analogs & derivatives ; Drug Delivery Systems ; Glioma ; drug therapy ; Magnetic Resonance Imaging ; Neoplasm Transplantation ; Rats ; Rats, Wistar
7.A Comparative Study of Topical Mitomycin C, Cyclosporine, and Bevacizumab after Primary Pterygium Surgery.
Shinyoung HWANG ; Sangkyung CHOI
Korean Journal of Ophthalmology 2015;29(6):375-381
PURPOSE: To compare the recurrence rates and complications associated with instillation of topical mitomycin C, cyclosporine, and bevacizumab after primary pterygium surgery. METHODS: Between July 2013 and June 2014, we performed surgery using the bare sclera method on 132 eyes (132 patients) with primary pterygium. We randomly selected 33 eyes (33 patients) and treated them with artificial tears four times a day for three months, 29 eyes (29 patients) were treated with topical 0.02% mitomycin C four times a day for five days, 34 eyes (34 patients) were treated with topical 0.05% cyclosporine four times a day for three months, and 36 eyes (36 patients) were treated with topical 2.5% bevacizumab four times a day for three months after surgery. We prospectively determined the recurrence rates of pterygium and complications at the six-month follow-up examination. RESULTS: At six months after surgery, the recurrence rates in each group were as follows: 45.5% (15 eyes) in the control group, 10.3% (three eyes) in the mitomycin C group, 20.6% (seven eyes) in the cyclosporine group, and 41.7% (15 eyes) in the bevacizumab group (p = 0.004). No serious complications, except subconjunctival hemorrhages, were observed in any group. CONCLUSIONS: Groups receiving topical 0.02% mitomycin C and 0.05% cyclosporine after surgery showed lower recurrence rates than the control group; however, no difference in recurrence rate was observed between the control group and the group receiving topical 2.5% bevacizumab after surgery.
Administration, Topical
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Aged
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Aged, 80 and over
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Alkylating Agents/administration & dosage
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Angiogenesis Inhibitors/administration & dosage
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Bevacizumab/*administration & dosage
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Cell Count
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Combined Modality Therapy
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Cyclosporine/*administration & dosage
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Double-Blind Method
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Endothelium, Corneal/pathology
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Female
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Humans
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Immunosuppressive Agents/administration & dosage
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Male
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Middle Aged
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Mitomycin/*administration & dosage
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Ophthalmic Solutions
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Ophthalmologic Surgical Procedures
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Prospective Studies
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Pterygium/diagnosis/*drug therapy/*surgery
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Recurrence
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Vascular Endothelial Growth Factor A/antagonists & inhibitors
8.Visual Prognosis of Retinoblastoma in the Posterior Pole Treated with Primary Chemotherapy Plus Local Treatments.
Jae Min KIM ; Jeong Hun KIM ; Seong Joon KIM ; Kyung Duk PARK ; Hee Young SHIN ; Hyo Seop AHN ; Young Suk YU
Korean Journal of Ophthalmology 2010;24(6):347-352
PURPOSE: To evaluate the visual outcomes of retinoblastoma in the posterior pole (RBPP) treated with chemotherapy plus local treatments and to address the prognostic factors that influence such outcomes. METHODS: The medical records of patients with RBPP diagnosed at the Department of Pediatric Ophthalmology, Seoul National University Children's Hospital between August 1987 and September 2007 were reviewed retrospectively. Only those patients treated via primary chemotherapy plus local treatments were included. The presence of foveal involvement and tumors in the posterior pole before and after treatment, the type of regression pattern and the best corrected visual acuity (BCVA) of each patient were evaluated. RESULTS: A total of 13 eyes in 12 patients were included. The mean final BCVA for treated RBPP was 20/210 (range, hand motion to 20/16). However, eight eyes (61.5%) had an acuity of 20/200 or better and seven eyes (53.8%) had an acuity of 20/50 or better. The mean final BCVA was significantly better in cases with negative foveal involvement; however, four eyes (37.5%) with positive foveal involvement had an acuity of 20/200 or better. Tumors area in the posterior pole and the type of regression pattern were not significantly related to final BCVA. CONCLUSIONS: Over one half of the studied RBPP patients had working vision. Although the eyes had RBPP with positive foveal involvement, about one-third of the patients had working vision. Vision preservation should be considered when deciding on RBPP treatment.
Antibiotics, Antineoplastic/administration & dosage
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Antineoplastic Agents/administration & dosage
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Antineoplastic Agents, Alkylating/administration & dosage
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Antineoplastic Combined Chemotherapy Protocols/*therapeutic use
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Cisplatin/administration & dosage
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Cyclophosphamide/administration & dosage
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Doxorubicin/administration & dosage
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Etoposide/administration & dosage
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Eyeglasses
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Female
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Follow-Up Studies
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Fovea Centralis/pathology
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Humans
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Infant
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Male
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Prognosis
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Retinal Neoplasms/*drug therapy/pathology/*physiopathology
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Retinoblastoma/*drug therapy/pathology/*physiopathology
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Retrospective Studies
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Treatment Outcome
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Visual Acuity
9.Improved median survival for glioblastoma multiforme following introduction of adjuvant temozolomide chemotherapy.
Michael F BACK ; Emily L L ANG ; Wai-Hoe NG ; Siew-Ju SEE ; C C Tchoyoson LIM ; S P CHAN ; Tseng-Tsai YEO
Annals of the Academy of Medicine, Singapore 2007;36(5):338-342
INTRODUCTIONThe use of adjuvant temozolomide (TMZ) in patients managed with surgery and adjuvant radiation therapy (RT) for glioblastoma multiforme (GBM) has been demonstrated to improve median and 2-year survival in a recent large international multicentre study. To confirm this result in routine clinical practice, an audit of the management and outcome of patients with GBM at The Cancer Institute Radiation Oncology was performed.
MATERIALS AND METHODSAll patients with GBM managed radically at The Cancer Institute Radiation Oncology from May 2002 to 2006 were entered into a prospective database. Patient, tumour and treatment factors were analysed for association with the outcome of median survival (MS). Survival was calculated using the Kaplan-Meier technique and correlation was assessed using Cox proportional hazards regression.
RESULTSForty-one patients with GBM were managed with radical intent over the 4- year period. The median age was 54 years and 66% were Eastern Cooperative Oncology Group (ECOG) 0-1 performance status. Macroscopic, subtotal and biopsy alone procedures were performed in 61%, 29% and 10% of patients, respectively. The median time from surgery to RT was 26 days. Adjuvant TMZ was used in 44% of patients (n = 18). The MS of the total group was 13.6 months, with a 24% 2-year overall survival. The use of TMZ was associated with improved MS (19.6 versus 12.8 months; P = 0.035) and improved 2-year survival (43% versus 0%). A requirement of dexamethasone dose greater than 4 mg at the end of RT (P = 0.012) was associated with worse survival, but there was no association of MS with age, ECOG, tumour size or extent of surgery.
CONCLUSIONThe median and 2-year survival outcomes are comparable to the results of the European Multicentre Study and justify the continued use of TMZ in routine clinical practice.
Antineoplastic Agents, Alkylating ; administration & dosage ; therapeutic use ; Brain Neoplasms ; drug therapy ; radiotherapy ; surgery ; Chemotherapy, Adjuvant ; Dacarbazine ; administration & dosage ; analogs & derivatives ; therapeutic use ; Female ; Glioblastoma ; drug therapy ; radiotherapy ; surgery ; Humans ; Male ; Middle Aged ; Prospective Studies ; Singapore ; Survival Analysis
10.Comparison of the Outcome of Repeat Trabeculectomy with Adjunctive Mitomycin C and Initial Trabeculectomy.
Ali Bulent CANKAYA ; Ufuk ELGIN
Korean Journal of Ophthalmology 2011;25(6):401-408
PURPOSE: To compare the efficacy and safety of repeat and initial trabeculectomy with mitomycine C (MMC). METHODS: Eighty seven patients, who had underwent repeat (repeat group) or initial (initial group) trabeculectomy with MMC, were enrolled in this prospective trial. Postoperative outcome measures included the amount of decrease in intraocular pressure (IOP), the number of anti-glaucoma medications, and the complications. The success of trabeculectomy was defined on the basis of three definitions which were: IOP < or =18 mmHg (definition 1), IOP < or =21 mmHg (definition 2), and the amount of decrease in IOP from baseline > or =30% (definition 3). Success was further defined as "complete" when these criteria were obtained without any anti-glaucoma medications and "qualified" with or without medical therapy and no further surgical procedures. RESULTS: Fifty nine eyes underwent initial and 28 eyes underwent repeat trabeculectomy. The mean follow-up period was 19.1 +/- 5.9 months. Complete success rates were significantly greater in the initial trabeculectomy group (p = 0.02 for definition 1, p = 0.038 for definition 2, p = 0.003 for definition 3). A higher proportion of eyes in the initial group achieved qualified success relative to the group A eyes, but the differences were not statistically significant (p = 0.33 for definition 1, p = 0.99 for definition 2, p = 0.24 for definition 3). The mean number of antiglaucomatous medications at the last examination was 1.2 +/- 1.2 in repeat group and 0.7 +/- 1.1 in initial group (p = 0.01). The number of complications during the follow up period did not differ significantly between the two groups (p = 0.65). CONCLUSIONS: Repeat trabeculectomy with MMC has high success and low complication rates in patients with previously failed trabeculectomy in spite of the need of higher number of anti-glaucoma medications.
Aged
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Alkylating Agents/*administration & dosage
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Combined Modality Therapy
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Female
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Follow-Up Studies
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Glaucoma/*drug therapy/*surgery
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Humans
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Intraocular Pressure/physiology
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Male
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Middle Aged
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Mitomycin/*administration & dosage
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Prospective Studies
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Reoperation
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*Trabeculectomy
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Treatment Outcome