Related Experiment Videos

Antiplatelets and anticoagulants in glaucoma surgery and laser

Hemlata Udenia1, Sushmita Bairagi2, Dewang Angmo3

  • 1Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.

Insights

Patients on anticoagulant medications require careful management before glaucoma surgery. Current evidence is inconclusive on whether to continue or stop these blood-thinning drugs, necessitating consultation with multiple specialists.

Area of Science:

  • Ophthalmology
  • Cardiology
  • Pharmacology

Background:

  • Cardiovascular diseases are increasing, leading to more patients using anticoagulant medications.
  • Anticoagulants are crucial for managing comorbidities but pose bleeding risks during ophthalmic surgery.
  • Practices vary significantly regarding anticoagulant use before glaucoma surgery, unlike cataract surgery.

Purpose of the Study:

  • To explore the current understanding and practices surrounding anticoagulant medication management before glaucoma surgery.
  • To highlight the lack of conclusive evidence regarding the optimal approach to anticoagulation in glaucoma surgery.
  • To emphasize the need for careful consideration and multidisciplinary consultation when modifying anticoagulation therapy.

Main Methods:

  • Review of current literature and clinical practices concerning anticoagulation and glaucoma surgery.
  • Analysis of the risks and benefits of continuing or discontinuing anticoagulant therapy.
  • Identification of the need for evidence-based guidelines.

Main Results:

  • There is significant variability among surgeons regarding the management of anticoagulation before glaucoma surgery.
  • Existing evidence is insufficient to guide decisions on continuing, withholding, or bridging anticoagulation therapy.
  • Stopping anticoagulation poses risks of thrombotic events, while continuing increases hemorrhage risk.

Conclusions:

  • Management of anticoagulation therapy for glaucoma surgery is complex and lacks clear guidelines.
  • Decisions must be individualized, weighing bleeding risks against thrombotic risks.
  • Close collaboration with primary care physicians, cardiologists, internists, and neurologists is essential.

Related Concept Videos

Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Glaucoma: Overview01:25

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
Ophthalmic Drug Delivery Systems01:23

Ophthalmic Drug Delivery Systems

Ophthalmic drug delivery faces major limitations due to poor absorption across the corneal membrane. This process is primarily driven by diffusion and is influenced by two main factors: the physicochemical properties of the drug and tear drainage. Most ophthalmic drugs, such as pilocarpine, epinephrine, atropine, and local anesthetics, are weak bases. They are typically formulated at an acidic pH to enhance chemical stability. However, this leads to high ionization, reducing their ability to...