Böhm P, Záhorcová M
Ocné oddelenie, FN Bratislava.
Cesk Slov Oftalmol. 2003 Jun;59(3):154-9.
Authors are presenting their experience with pneumatic retinopexy (PR) in the therapy of primary rhegmatogenous retinal detachment. Technique was for the first time described by Hilton and Grizzard in 1986 as an intravitreal injection of expending gas in combination with transconjunctival cryotherapy or laser photocoagulation of retinal tears. After gas application a patient, particularly his head, must be positioned the way that the rising gas bubble perfectly seals the retinal tear. This also subretinal fluid to be reabsorbed. In the study group of 30 eyes, 11 were pseudophakic and 19 phakic. The reattachment after single PR operation was 77% (23 eyes), in 24% (7 eyes) of cases reoperation was needed. 2 cases required multiple injection of the gas, in 5 cases retinal reattachment after PR was never occurred. The most common causes of failure to reattach the retina were initiation and acceleration of proliferative vitreoretinopathy. In these cases a following operation was needed--most frequently pars plana vitrectomy with tamponading the vitreous cavity by gas or silicone oil. The final reattachment rate was then 94% (28 eyes), one patient refused reoperation, in one case retina remained detached. Pneumatic retinopexy is quite modest and time-saving operative technique which can be used in indicated cases as a one-day surgical procedure, which corresponds with current heading of the eye microsurgery. Although there is always the possibility of failure to reattach the retina using PR as a method of choice. The risk of failure can be significantly lowered by adequate selection of patients.
作者介绍了他们在原发性孔源性视网膜脱离治疗中应用气体视网膜固定术(PR)的经验。该技术于1986年首次由希尔顿和格里扎德描述,是一种玻璃体内注射膨胀气体并联合经结膜冷冻疗法或视网膜裂孔激光光凝的方法。应用气体后,患者,尤其是其头部,必须以这样的方式定位,即上升的气泡能完美地封闭视网膜裂孔。这也有助于使视网膜下液被吸收。在30只眼的研究组中,11只为人工晶状体眼,19只为晶状体眼。单次PR手术后视网膜复位率为77%(23只眼),24%(7只眼)的病例需要再次手术。2例需要多次注射气体,5例PR后视网膜从未复位。视网膜复位失败的最常见原因是增殖性玻璃体视网膜病变的发生和进展。在这些病例中需要进行后续手术——最常见的是玻璃体切割术并向玻璃体腔注入气体或硅油。最终视网膜复位率为94%(28只眼),1例患者拒绝再次手术,1例视网膜仍脱离。气体视网膜固定术是一种相当适度且省时的手术技术,在合适的病例中可作为一日手术程序使用,这与当前眼显微手术的趋势相符。尽管使用PR作为首选方法总有视网膜无法复位的可能性。通过适当选择患者,失败风险可显著降低。