Objective: To evaluate status of conjunctival fibrillin-1 in patients with Marfan syndrome with ectopia lentis. Methods: Frozen sections of conjunctiva from 6 patients with Marfan syndrome with ectopia lentis and from...Objective: To evaluate status of conjunctival fibrillin-1 in patients with Marfan syndrome with ectopia lentis. Methods: Frozen sections of conjunctiva from 6 patients with Marfan syndrome with ectopia lentis and from 15 age-matched control subjects were stained with mouse antihuman fibrillin-1 antibody,using an avidin biotin immunoperoxidase technique. The fibrillin-1 staining characteristics of conjunctiva were analyzed with the lightmicroscope. Results: All the fresh frozen sections of conjunctival samples from control subjects demonstrated a characteristic pattern of fibrillin-1 staining. We observed a woven network of thin fibrils of uniform thickness surrounding collagen bundles. The fresh frozen samples from patients with Marfan syndrome showed consistent qualitative differences in fibrillin-1 staining when compared with samples from control subjects. The fibrils were longer and straighter than normal,varied in caliber,and showed fewer tendencies to form a woven pattern. Conclusions: Consistent,qualitative abnormalities in fibrillin-1 staining pattern can be seen in the conjunctiva of patients with Marfan syndrome with ectopia lentis. Conjunctival biopsy deserves further investigation as a diagnostic modality for Marfan syndrome in patients with ectopia lentis.展开更多
OBJECTIVE To investigate the effects of percutaneous cryoablation on uterine fibroids using computed tomographic （CT） guidance after uterine artery embolization.METHODS Twelve patients who failed to respond to uteri...OBJECTIVE To investigate the effects of percutaneous cryoablation on uterine fibroids using computed tomographic （CT） guidance after uterine artery embolization.METHODS Twelve patients who failed to respond to uterine artery em- bolization were treated using percutaneous cryoablation. All patients had undergone previous uterine artery embolization an average of 1.2 years （0.7-1.6 years） ago. Two cases had abnormal bleeding, and the other 10 suffered from pressure and/or pelvic pain. Myoma diameters were 4 cm to 16.5 cm. By using CT guidance, 2.0, 2.4, 3.0 or 3.8 mm cryoprobes were placed into the fibroid, and two 15-20 rain freezing processes were performed. Hemostasis was achieved only by pressing the incisions for several minutes. MR-imaging was performed before the procedure to measure the size and number of fibroid tumors, and follow- up MR-imaging determined the reduction of the lesions.RESULTS All patients were discharged within 48 h of treatment. Almost no hemorrhage was found in all of the cases. No bladder or bowel injury or significant postsurgery pain was reported. Ice spheres were readily visualized at CT. Beam-hardening artifact from the metal probes was present, but did not interfere with the procedure. Myomas regressed up to 76.3% after 12 months of treatment, and the primary symptoms improved in all treated women.CONCLUSION CT-monitored percutaneous cryoablation is an effective and minimally invasive therapy for symptom relief and fibroid shrinkage after the failure of uterine artery embolization.展开更多
文摘Objective: To evaluate status of conjunctival fibrillin-1 in patients with Marfan syndrome with ectopia lentis. Methods: Frozen sections of conjunctiva from 6 patients with Marfan syndrome with ectopia lentis and from 15 age-matched control subjects were stained with mouse antihuman fibrillin-1 antibody,using an avidin biotin immunoperoxidase technique. The fibrillin-1 staining characteristics of conjunctiva were analyzed with the lightmicroscope. Results: All the fresh frozen sections of conjunctival samples from control subjects demonstrated a characteristic pattern of fibrillin-1 staining. We observed a woven network of thin fibrils of uniform thickness surrounding collagen bundles. The fresh frozen samples from patients with Marfan syndrome showed consistent qualitative differences in fibrillin-1 staining when compared with samples from control subjects. The fibrils were longer and straighter than normal,varied in caliber,and showed fewer tendencies to form a woven pattern. Conclusions: Consistent,qualitative abnormalities in fibrillin-1 staining pattern can be seen in the conjunctiva of patients with Marfan syndrome with ectopia lentis. Conjunctival biopsy deserves further investigation as a diagnostic modality for Marfan syndrome in patients with ectopia lentis.
文摘OBJECTIVE To investigate the effects of percutaneous cryoablation on uterine fibroids using computed tomographic （CT） guidance after uterine artery embolization.METHODS Twelve patients who failed to respond to uterine artery em- bolization were treated using percutaneous cryoablation. All patients had undergone previous uterine artery embolization an average of 1.2 years （0.7-1.6 years） ago. Two cases had abnormal bleeding, and the other 10 suffered from pressure and/or pelvic pain. Myoma diameters were 4 cm to 16.5 cm. By using CT guidance, 2.0, 2.4, 3.0 or 3.8 mm cryoprobes were placed into the fibroid, and two 15-20 rain freezing processes were performed. Hemostasis was achieved only by pressing the incisions for several minutes. MR-imaging was performed before the procedure to measure the size and number of fibroid tumors, and follow- up MR-imaging determined the reduction of the lesions.RESULTS All patients were discharged within 48 h of treatment. Almost no hemorrhage was found in all of the cases. No bladder or bowel injury or significant postsurgery pain was reported. Ice spheres were readily visualized at CT. Beam-hardening artifact from the metal probes was present, but did not interfere with the procedure. Myomas regressed up to 76.3% after 12 months of treatment, and the primary symptoms improved in all treated women.CONCLUSION CT-monitored percutaneous cryoablation is an effective and minimally invasive therapy for symptom relief and fibroid shrinkage after the failure of uterine artery embolization.
