Trocar anterior chamber maintainer: Improvised infusion technique. 2016

Amar Agarwal, and Priya Narang, and Dhivya A Kumar, and Ashvin Agarwal
From the Dr. Agarwal's Eye Hospital & Research Centre (Amar Agarwal, Kumar, Ashvin Agarwal), Chennai, and Narang Eye Care & Laser Centre (Narang), Ahmedabad, India. Electronic address: dragarwal@vsnl.com.

We present an improvised technique of infusion that uses a trocar cannula as an anterior chamber maintainer (ACM). Although routinely used in posterior segment surgery, the trocar cannula has been infrequently used in complex anterior segment procedures. The trocar ACM creates a transconjunctival biplanar wound of appropriate size that is self-sealing and overcomes the shortcomings of an ACM, such as spontaneous extrusion and forced introduction into the eye from variability in the size of the corneal paracentesis incision. Constant infusion inflow through the trocar ACM is used to maintain positive intraocular pressure through a self-sealing sclerotomy incision at the limbus. BACKGROUND No author has a financial or proprietary interest in any material or method mentioned.

UI MeSH Term Description Entries
D007263 Infusions, Parenteral The administration of liquid medication, nutrient, or other fluid through some other route than the alimentary canal, usually over minutes or hours, either by gravity flow or often by infusion pumping. Intra-Abdominal Infusions,Intraperitoneal Infusions,Parenteral Infusions,Peritoneal Infusions,Infusion, Intra-Abdominal,Infusion, Intraperitoneal,Infusion, Parenteral,Infusion, Peritoneal,Infusions, Intra-Abdominal,Infusions, Intraperitoneal,Infusions, Peritoneal,Intra Abdominal Infusions,Intra-Abdominal Infusion,Intraperitoneal Infusion,Parenteral Infusion,Peritoneal Infusion
D007429 Intraocular Pressure The pressure of the fluids in the eye. Ocular Tension,Intraocular Pressures,Ocular Tensions,Pressure, Intraocular,Pressures, Intraocular,Tension, Ocular,Tensions, Ocular
D002404 Catheterization Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions. Cannulation,Cannulations,Catheterizations
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000867 Anterior Chamber The space in the eye, filled with aqueous humor, bounded anteriorly by the cornea and a small portion of the sclera and posteriorly by a small portion of the ciliary body, the iris, and that part of the crystalline lens which presents through the pupil. (Cline et al., Dictionary of Visual Science, 4th ed, p109) Anterior Chambers,Chamber, Anterior,Chambers, Anterior
D012599 Sclerostomy Surgical formation of an external opening in the sclera, primarily in the treatment of glaucoma. Sclerostomies
D019060 Minimally Invasive Surgical Procedures Procedures that avoid use of open, invasive surgery in favor of closed or local surgery. These generally involve use of laparoscopic devices and remote-controlled manipulation of instruments with indirect observation of the surgical field through an endoscope or similar device. Minimal Access Surgical Procedures,Minimal Surgical Procedures,Minimally Invasive Surgical Procedure,Surgical Procedures, Minimally Invasive,Minimal Surgical Procedure,Minimally Invasive Surgery,Procedure, Minimal Surgical,Procedures, Minimal Access Surgical,Procedures, Minimal Surgical,Procedures, Minimally Invasive Surgical,Surgical Procedure, Minimal,Surgical Procedures, Minimal,Surgical Procedures, Minimal Access,Minimally Invasive Surgeries,Surgeries, Minimally Invasive,Surgery, Minimally Invasive
D019654 Lens Implantation, Intraocular Insertion of an artificial lens to replace the natural CRYSTALLINE LENS after CATARACT EXTRACTION or to supplement the natural lens which is left in place. Implantation, Intraocular Lens,Implantations, Intraocular Lens,Intraocular Lens Implantation,Intraocular Lens Implantations,Lens Implantations, Intraocular
D041623 Tomography, Optical Coherence An imaging method using LASERS that is used for mapping subsurface structure. When a reflective site in the sample is at the same optical path length (coherence) as the reference mirror, the detector observes interference fringes. OCT Tomography,Optical Coherence Tomography,Coherence Tomography, Optical,Tomography, OCT

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