What is bleb revision?
The term bleb revision can refer to a variety of procedures that can be used in a host of clinical scenarios. Bleb needling, a form of revision, can be quite helpful to surgeons’ efforts to save blebs failing early in the postoperative period as well as for cases of late failure.
What is bleb trabeculectomy?
Trabeculectomy is a filtering surgery where an ostium is created into the anterior chamber from underneath a partial thickness scleral flap to allow for aqueous flow out of the eye. The aqueous flows into the subconjunctival space, usually leading to an elevation of the conjunctiva, referred to as a filtering bleb.
How long do Trabeculectomies last?
It is successful about 60-80 percent of the time in controlling the eye pressure during a period of five years.
How long does bleb surgery take?
The mean operation time was 133 minutes, ranging from 80 minutes to 270 minutes. No conversion to open thoracotomy was necessary in any case. One patient had no bleb and thus received apical suturing. The mean drainage time was 3 days, ranging from 2 to 5 days.
What is bleb failure?
Blebs can fail because the internal ostium is blocked by the iris, a membrane or fibrin and vitreous. Episcleral fibrosis can cause closure of the flap margins lining the bleb and can cause an encapsulation. Collagen within the bleb occurs in 10% to 14% of cases. “The problem is how to manage these blebs,” Dr.
How do they remove blebs from lungs?
The operation for bleb resection can be done via mini-thoracotomy or thoracoscopy. The procedure is performed with general anesthesia using a special endotracheal tube that allows intentional collapse of the lung which is operated on. The procedure is performed through a series of small incisions.
Why is vision blurry after trabeculectomy?
Depending on the pressure in your eye, your doctor may cut the stitches around your bleb to change the flow of fluid. Your eyes may be blurry for up to 6 weeks after surgery. As this goes away, your vision will probably be as good as it was before surgery.
What happens if a trabeculectomy fails?
The main cause of a failed trabeculectomy is episcleral or subconjunctival fibrosis. When a trabeculectomy procedure fails and cannot be rescued, subsequent procedures include a second trabeculectomy, placement of an aqueous shunt, or a cyclodestructive procedure. CAN OCULAR COMPRESSION RESCUE A BLEB?
What to expect after a trabeculectomy?
Recovering from a trabeculectomy. After surgery, immediate side effects include discomfort and blurry vision in the affected eye. The blurring may last for up to two weeks, but it can take up to 12 weeks for your eye to feel normal and see normally again.
What are the complications of trabeculectomy?
The most frequent complications that took place irrespective of the type of glaucoma, the pathological personal history or other individual characteristics were: hyphema, decompression retinopathy, hemorrhagic choroidal detachment, small anterior chamber, high IOP (>21 mm Hg), encapsulated bleb and scleral flap closure …
Do blebs on lungs go away?
The lung can deflate, since the negative pressure created by the diaphragm and chest wall is communicated to the airway, and there is no longer a pressure gradient to expand the lungs. Normally, the lungs heal themselves, without need for intervention.
What causes air blebs in lungs?
In some cases, a collapsed lung is caused by air blisters (blebs) that break open, sending air into the space around the lung. This can result from air pressure changes such as when scuba diving or traveling to a high altitude. Tall, thin people and smokers are more at risk for a collapsed lung.
When do you need a trabeculectomy for glaucoma?
Your doctor may recommend a trabeculectomy if your IOP is unresponsive to standard glaucoma treatments like prescription eye drops or medication. Trabeculectomy is used to create a new channel, or “bleb,” through which fluid can drain from the eye. Restoring the eye’s ability to drain fluid should result in lowered IOP.
How does a bleb work in glaucoma surgery?
With traditional glaucoma surgery (trabeculectomy), a blister-like fluid collection (called a “ bleb ”) must be present on the surface of the eye for the surgery to work. Aqueous fluid (the fluid inside the eye) flows through the fistula into this bleb where it then finds its way out of the eye.
Can a bleb still function after a trabeculectomy?
They’re an unfortunate complication of trabeculectomy. But if managed effectively, a bleb may function for many more years. Suppress aqueous production. Decreasing aqueous production should help to relieve some of the pressure inside the bleb and reduce aqueous flow through the leak, giving it a better chance to heal.
What are the results of a trabeculectomy revision?
Revision of trabeculectomy provided successful resolution of complications associated with trabeculectomy surgery in many cases. Results from a modified bleb needling procedure with continuous infusion performed in the operating room.