Objective To compare the axial length (AL) measured by Lenstar and contact AScan in the patients with idiopathic macular hole and study the correlation between the difference of the two measurements and the foveal thickness measured by optical coherence tomography (OCT). Methods Twenty-seven eyes of 26 idiopathic macular hole patients (IMH group) and 27 eyes of 25 patients with mild cataract (control group) were enrolled in this study. Foveal thickness was measured with 3D OCT. The AL was measured by Lenstar and contact A-Scan, and the consistency of the two measurements was determined by Bland-Altman analysis. The correlation between the difference of the two measurements and foveal thickness was analyzed by Pearson correlation analysis. Results Mean foveal thickness of IMH and control eyes were （372.85±60.02） μm and （243.44±22.50） μm, respectively. The difference between the foveal thickness of the two groups was highly significant (t=-10.490，P＜0.001). In the IMH group, the AL measured by Lenstar and contact A-Scan were (23.20±1.12) mm and (23.18±1.13) mm, respectively, the difference between the two measurements was not statistically significant (t=-0.549，P=0.588), whereas in the control group, the AL was (23.41±0.72) mm by Lenstar and (23.33±0.74) mm by contact A-Scan, the two measurements were significantly different (t=-4.832，P＜0.001). However, no correlation was found by Pearson correlation analysis between the difference of the two measurements and the foveal thickness in either IMH or control group (r=0.181，-0.141;P＞0.05). ConclusionsAlthough there is no difference of axial length measurements using Lenstar and contact A-Scan in IMH eyes, in clinical measurements the results of two instruments should be taken into comprehensive consideration.
【摘要】 目的 对原发性肠道非霍奇金淋巴瘤穿孔患者的临床及病理特征、诊治、预后进行探讨。 方法 回顾性分析1999年1月-2008年12月诊治的17例原发性肠道非霍奇金淋巴瘤穿孔患者的临床资料。 结果 B细胞型9例，T细胞型8例。17例原发肠道非霍奇金淋巴瘤穿孔患者的穿孔部位:大肠7例，小肠7例，回盲部3例。所有患者均行手术治疗。除2例穿孔前行化疗的患者以外，其余患者术前均未明确诊断。有14例获得随访结果，6例术后3个月内死亡，术后接受化疗者7例，1、2、3年生存率分别为41.2%、 23.6%、11.7%，仅1例生存期超过5年。 结论 原发性肠道非霍奇金淋巴瘤穿孔术前诊断困难，预后极差。【Abstract】 Objective To analyze the clinical features, diagnosis, therapy and prognosis of primary intestinal non-hodgkin′s lymphoma perforation. Methods The clinical data of 17 patients with the primary intestinal non-Hodgkin′s lymphoma perforation from January 1999 to December 2008 were retrospectively analyzed. Results Nine patients had intestinal B-cell lymphoma, and eight had intestinal T-cell lymphoma. The sites of perforation were as follows: colon and rectum in 7 (41.2%), ileum and jejunum in 7 (41.2%), and ileocecal junction in 3 (17.6%). All patients had undergone the operations. The disease was not diagnosed before the operation in all of the patients except for the Two patients had a history of systemic chemotherapy before perforation. A total of 14 patients were followed up, in whom six died within three months after the operation; the survival rate 1, 2, and 3 years after the operation was 41.2%, 23.6%, and 11.7%, respectively in seven patients who had undergone the systemic chemotherapy before the operation; one patients lived more than 5 years. Conclusion The diagnosis of primary colonic malignant lymphoma perforation is difficult; the prognosis is miserable.
ObjectiveTo observe the clinical efficacy of vitrectomy combined with modified inverted internal limiting membrane (ILM) flap covering technique for complicated macular hole (MH).MethodsThis is a retrospective case series. Twenty-one eyes of 20 patients who underwent vitrectomy combined with modified inverted ILM flap covering technique were enrolled in this study. Among these eyes, 9 eyes were idiopathic MH (IMH), with the mean basal diameter of (1 188.3±155.1) μm, minimum diameter of (626.9±86.2) μm, logarithm of the minimum angle of resolution (logMAR) best corrected visual acuity (BCVA) of 1.1±0.3; 2 eyes were MH with high myopia, with the mean basal diameter of (696.5±232.6) μm, minimum diameter of (259.0±69.3) μm, logMAR BCVA of 1.3; 5 eyes were high myopia MH with retinal detachment (RD), with the mean BCVA of 1.5±0.1; 3 eyes were rhegmatogenous RD (RRD) with MH, with the mean logMAR BCVA of 1.6; 2 eyes were MH after vitrectomy for RRD, with the mean basal diameter of (1 606.0±69.3) μm, minimum diameter of (909.0±387.5) μm, logMAR BCVA of 1.6. All patients received 23G or 25G vitrectomy after removal of posterior vitreous cortex intraoperatively. Indocyanine green staining assisted circle-wise ILM peeling was performed. ILM of diameter 1.5 disc-diameters around fovea was residual and loosened; perfluoronoctane assisted inverting superior or temporal residual ILM covering on macular hole. C3F8, gas or silicone oil tamponade was performed at the end. BCVA and hole closure were followed up for 1-4 months. C3F8, gas or silicone oil was tamponaded at the end. BCVA and hole closure were followed up for 1-4 months.ResultsMH of 21 eyes were closed after surgery. Nine IMH were closed at typeⅠ, with U shape closure in 7 eyes, V shape closure in 2 eyes. Two eyes of MH with high myopia, 3 eyes of RRD with MH, 2 eyes of MH after vitrectomy for RRD were closed at typeⅠ of U shape. Five eyes of high myopia MHRD including MH closure at typeⅠof U shape 3 eyes, typeⅡ of W shape 2 eyes. The mean logMAR BCVA of IMH, MH with high myopia, high myopia MHRD, RRD with MH, MH after vitrectomy for RRD eyes were 0.8±0.3, 0.9±0.2, 1.4±0.1, 0.7±0.3, 0.9±0.2, respectively. The mean postoperative logMAR BCVA in IMH eyes was improved compared preoperative one (P=0.02). There was no obvious change of pre-and postoperative logMAR BCVA in MH with high myopia, high myopia MHRD, RRD with MH, MH after vitrectomy for RRD eyes (P=0.18, 0.10, 0.11, 0.18).ConclusionVitrectomy combined with inverted ILM flap covering technique for complicated MH is an effective method to improve the success rate of MH closure and the visual function.
Considering the problems such as reposition limited, easily detached and singly fired of the existing clip products, we developed an endoscopic multiple-clip applier which can apply 4 clips fired successively at a time. The instrument also equipped with an independent grasper which can be used to clamp target tissues. In order to explore its feasibility and effectiveness of endoluminal closure of gastric perforation, 22 pig stomachs were making a 1 cm full-thickness incision from outside and closed by multiple-clip applier (n=12) in vitro. Outcome was measured by bursting pressure and compared with negative control (n=5) and hand suture (n=5). We set a threshold pressure value (10 mm Hg) for a secure closure. Except 2 cases of invalid data, the mean bursting pressures of negative control, multiple-clip applier, hand suture were (1.5±0.3) mm Hg, (46.0±7.1) mm Hg, and (72.5±7.7) mm Hg, respectively. The results showed that bursting pressure of multiple-clip applier was significantly higher than that of negative control (P＜0.05) and threshold value. Multiple-clip applier can be served as an effective and safe device to perform the endoluminal closure of gastric perforation.
Purpose To assess the efficacy of pars plana vitrectomy,autologous platelet concentrate and gas tamponade for the treatment of full-thickness idiopathic macular holes. Methods The procedures consisted of pars plana vitrectomy with removal of posterior cortical vitreous，air-fluid exchange, instillation of autologous platelet concentrate onto the posterior pole and 20%～30%SF6 tamponade,were performed in treating 6 eyes of 6 patients with idiopathic macular holes. The patients were instructed to lie in a supine position for l hour after surgery,then adviced to remain in a facedown position for 2 weeks. Results Flattening of the surrounding retina and closure of the hole were achieved postoperatively in all the 6 affected eyes.Visual acuity improved two lines or more in 5 eyes (83.3%).Four eyes(66.7%)reached a postoperative visual acuity of 0.3 or more. Retinal detachment ocurred in one eye owing to peripheral new hole formation. Conclusion Pars plana vitrectomy, autologous platelet concentrate and gas tamponade for the treatment of full-thickness idiopathic macular holes are able to close macular hole and improve the visual acuity. (Chin J Ocul Fundus Dis,1998,14:14-15)