A vasectomy is a surgical procedure to tie the vas deferens of a man to cause sterility by preventing the sperm from leaving the testes. The vas deferens is located in the testicle as a small tube that carries the sperm to the semen. The procedure is recommended for adult men who are certain that they wish to prevent future pregnancies (permanent sterilization). There will still be a fluid ejaculate, but no sperm will be in the fluid, so the man cannot impregnate his partner.
Vasectomies are performed by an urologist in the office using a local anesthetic. There are two types of vasectomies:
Soreness is common, along with swelling and discomfort in the first few days. Most can return to normal activities within a week.
Splenectomy is the surgical removal of a diseased or damaged spleen. A splenectomy can also be performed as a treatment for some blood disorders and some cancers. A complete splenectomy removes the entire spleen, while a partial splenectomy removes only a part of the spleen. A splenectomy can be performed in conjunction with another partial organ removal, such as the pancreas.
The spleen is in the uppermost area of the left side of the abdomen, just under the diaphragm. In healthy people, the spleen plays a role in immunity against bacterial infections and acts as a reservoir for blood.
During a splenectomy the artery to the spleen is tied to prevent blood loss, and surgeon detaches the ligaments and removes the spleen. A splenectomy can be performed as either open or laparoscopic surgery.
Thyroidectomy is the surgical removal of all or part of the thyroid gland. A thyroidectomy can be used to correct conditions such as hypothyroidism (low thyroid function), hyperthyroidism (overactive thyroid function), thyroid cancer, and nontoxic goiter.
The surgery is performed while the patient is under general anesthesia. An incision is made through the skin in the low collar area of the neck. Incisions can also be made near the sternum (breastbone). The muscles in the area are spread aside to reveal the thyroid gland. All or part of the gland will be cut free from the surrounding tissues and removed. The surgeon will then use stitches to bring the neck muscles back together and the outer incision will be closed. A suction catheter is inserted near the incision to help drain any accumulating fluid. The catheter is removed within 24 hours, and most patients leave the hospital in one or two days after the surgery.
Tonsillectomy is the surgical removal of the tonsils. Tonsils are glands located on both sides of the opening to the throat) that serve as protection against infections. When the tonsils become enlarged or inflamed, they can cause infections in the throat and the ear and can obstruct breathing. Enlarged adenoids (lymphatic tissue located in the back of the throat) can also obstruct breathing and can be removed at this time. This is called an adenoidectomy.
An ear, nose and throat surgeon (ENT) performs the operation, usually in an outpatient setting. While the patient is under general anesthesia, the surgeon uses a device to hold the mouth open to expose the tonsils and/or the adenoids. The tonsils are either cut away with an instrument or burned away using cautery. Some surgeons will chose to cauterize the adenoids instead of removing them, because cautery heals naturally without stitches and has a minimum of blood loss. The recovery can take up to two weeks. The patient may have some throat and ear pain the first few days. The use of ice packs, sucking on ice chips and eating ice cream can help provide comfort.
A hysterectomy is a surgical procedure in which the uterus is removed through an incision in the abdomen. As part of the hysterectomy, the fallopian tubes and cervix may also be removed.
Hysterectomies are performed for uterine fibroids (benign tumors in the uterus), abnormal uterine bleeding, endometriosis (the formation of cells outside of the uterus), and uterine prolapse (loosening of support muscles and tissue in the pelvic area). A hysterectomy can also be performed to treat cancer of the uterus.
Types of hysterectomies include:
Different procedures used include:
A bone marrow biopsy can be an aspiration, a needle biopsy, or both. A local anesthetic is applied to numb the skin and the tissue down to the surface of the bone. A special needle is then used to penetrate the outer shell of the bone. Once inside, the center part of needle is replaced by a syringe and the liquid is collected. For a biopsy, the center of the needle is not replaced and the needle cuts a core that is collected by the needle. The core is extracted and prepared for examination by a pathologist.
Since the area is very small, usually a bandage is applied and the patient is released.
The patient is given high doses of chemotherapy and/or radiation to destroy the diseased cells prior to the implantation or transplantation. The cells and/or marrow are then injected directly into the patient's vein. This procedure is done in the patient's hospital room and does not require an operating room.
The name of the procedure depends the source of the healthy bone marrow (or stem cells). The healthy bone marrow (or stem cells) may be taken from:
• the patient prior to chemotherapy or radiation treatment (autograft or transplantation-autologous),
• a donor who is not an identical twin (allograft or transplantion-allogenic), or
• an identical twin (syngenetic or transplantation-syngenetic).