Thymectomy – Surgery – Procedure and Definition

Definition of Thymectomy A surgical operation, performed under general anesthesia, to remove the thymus, a structure of lymphatic tissue located behind the sternum (breastbone) that produces T-cells. Tendrils of the thymus often extend upward toward the thyroid gland and downward over the heart. The loose structure of the thymus can make it challenging to surgically remove. Thymectomy […]

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Cholecystectomy Procedure (Open and Laparoscopic)

Cholecystectomy Procedure Definition Cholecystectomy is a surgical operation to remove the gallbladder. Cholecystectomy is the most common treatment in the United States for gallbladder disease including gallstones (cholelithiasis), cholecystitis (inflammation or infection of the gallbladder), and biliary dyskinesia (diminished ability of the gallbladder to eject bile). About 500,000 Americans undergo cholecystectomy each year. Cholecystectomy – Surgical Procedure There are two methods for performing […]

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Lung Transplantation – Surgical Procedure and Complications

Lung Transplantation – Introduction Lung Transplantation is an operation to replace an individual’s diseased lung with a healthy donor lung. Doctors performed the first successful lung transplantation in 1983 and now perform several hundred lung transplantations each year. A lung transplantation may involve one lung or both lungs. Less commonly a lung transplantation includes both lungs […]

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Cataract Extraction and Lens Replacement Surgery

Cataract Extraction and Lens Replacement Surgery Definition Cataract Extraction and Lens Replacement surgery is an operation to remove the lens from the eye after a cataract (cloudy occlusion in the lens) forms and replace it with a prosthetic intraocular lens (IOL). Ophthalmologists can extract a cataract at any stage of its development. The vast majority of people who undergo cataract extraction fully […]

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Tracheostomy Procedure – Definition and Complications

Definition of Tracheostomy Procedure Tracheostomy is a surgical opening created in the trachea to allow air to enter the lungs, bypassing the upper throat and mouth. A tracheostomy may be temporary or permanent. The doctor may perform a tracheostomy when extensive surgery such as to treat laryngeal cancer results in removing the shared structures of the throat that allow […]

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Corneal Transplantation – replacement of a diseased cornea

Corneal Transplantation Corneal Transplantation – the replacement of a diseased cornea with a healthy donor cornea. In the United States, ophthalmologists perform more than 45,000 corneal transplantations each year; up to 90 percent of people who receive transplanted corneas experience restored vision; success depends on the reason for the transplant. Ophthalmologists may recommend corneal transplantation to treat: […]

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Sentinel Lymph Node Dissection and Cancer

Definition of Sentinel Lymph Node Dissection Surgery to remove and biopsy the first lymph node in the lymph network that drains lymph from the location of a cancerous tumor. The sentinel node is important in determining the course of treatment for the cancer because it would be the first lymph structure to which cancer cells would migrate […]

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Bladder Catheterization – Definition and Information

Definition of Bladder Catheterization Bladder catheterization – The insertion of a narrow, flexible tube into the bladder through the urethra to drain urine from the body. Bladder catheterization may be necessary to collect an uncontaminated (sterile) urine sample or to drain urine from the bladder. The catheter placement may be short term, such as after […]

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Enucleation – surgical removal of a cancerous eye

Enucleation Surgical Procedure Enucleation is a surgical removal of a cancerous eye or a severely diseased or damaged eye. The operation, performed under general anesthesia, takes about an hour. After removing the eye, the surgeon places an implant to fill the shape of the socket and provide a means of attaching a prosthetic eye. A pressure dressing stays in place […]

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Atherectomy – surgical procedure

Definition of Atherectomy Procedure Atherectomy is a surgical procedure, done via cardiac catheterization, to remove patches of arterial plaque (atherosclerotic plaque), called atheromas, from the inner walls of major arteries such as the coronary arteries. The cardiologist uses either a laser to vaporize or a rotary burr on the end of the catheter to shave away the […]

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