• Severe abdominal pain
• Fever
• Loss of appetite
• Nausea and vomiting

A ruptured appendix must be removed immediately, or it may leak into the abdominal space and cause peritonitis, a life-threatening condition. Both open and laparoscopic surgery are performed under general anesthesia, and require a hospital stay of 1-4 days. Recovery time is usually 1-3 weeks following surgery, but is shorter with laparoscopic surgery.

Different procedures used include:

• Vertical-banded Gastroplasty – The upper stomach near the esophagus is stapled to form a small pouch. The outlet from the pouch to the stomach is restricted by the use of a band made of special material. This band delays the emptying of food from the pouch, causing a fullness sensation.
• Short-limbed Roux-en-Y Gastroenterostomy – The surgeon will divide the stomach into a small upper section. The surgeon will staple off the small section from the larger section. Then, they will reconnect a section of the small intestine to this new pouch, bypassing the larger stomach area remaining and connecting the base to the remaining portion of the small intestine.
• Small Intestine Reconstruction – In this procedure, more of the small intestine is bypassed than with the short-limbed Roux-en-Y procedure.

During colon resection surgery (bowel resection) the diseased part of the large intestine is removed and the two healthy ends are sewn back together (resected). This surgery is used to treat many conditions, such as bowel obstruction, diverticulitis, Crohn's Disease and colon cancer.

If the entire colon and rectum is removed, the procedure is called a proctocolectomy.

A bowel resection may be performed as a traditional open procedure or as a minimally invasive laparoscopic procedure. The surgery is performed in a hospital setting under general anesthesia and can involve a hospital stay of up to seven days.

•  Open Procedure – The surgeon makes one large incision in the abdomen.

•  Laparoscopic Surgery – The surgeon makes three or four small incisions in the abdomen and inserts tube-like instruments. The abdomen is filled with gas to help the surgeon view the abdominal cavity. A camera is inserted through one of the tubes allowing the surgeon to work inside your abdomen.

Some other procedures that can be performed with the colon resection are:

•  Colectomy – If it is necessary to allow the colon to heal before returning it to its normal digestive process, a temporary opening of the colon (large intestine) through the abdominal wall may be created. In this procedure, the end of the healthy bowel tissue is passed through the abdominal wall, and the edges are stitched to the skin of the abdominal wall. An adhesive drainage bag is placed around the opening. Depending on the situation, the colostomy is usually temporary and can be closed with another operation at a later date.

•  Ileostomy – The ileum is located at the lowest portion of the small intestine. Similar to the colectomy, the healthy end of the ileum is brought through the abdominal wall, and the edges are stitched to the skin of the abdominal wall and an adhesive drainage bag is placed around the opening. When a large portion of the bowel is removed and the colon is no longer functional, the colostomy is usually permanent.

•  Coloproctostomy – An artificial opening that is created between the colon and the rectum.

Procedures used can include:

• Esophagectomy – An esophagectomy is the partial or complete removal of the esophagus (the tube from the mouth to the stomach) and the top part of the stomach. An esophagectomy is performed using one of two methods. Transhiatal Esophagectomy is performed with surgical incisions at the upper abdomen and the neck area. The second method, Transthoracic Esophagectomy is also known as the Ivor Lewis procedure and is performed with an upper abdominal incision and an incision into the chest area.
• Esophagoenterostomy – In this procedure, a connection is made between the esophagus and the small intestine following a gastrectomy.
• Roux-en-Y Reconstruction – In this procedure a small pouch is formed and connected to the intestine.
• Gastroduodenostomy – In this procedure, a connection is made between the stomach and duodenum (the first portion of the small intestine).
• Gastrojejunostomy – In this procedure, a connection is made between the stomach and the jejunum (the portion of the small intestine that extends from the duodenum to the ileum).
• Vagotomy – In this procedure the vagus nerve is cut to reduce acid secretion in the stomach. The vagus nerve has branches that go to different parts of the stomach.
• Pancreatectomy – This procedure involves the total or partial surgical removal of the pancreas.
• Whipple Procedure – Also known as a pancreaticoduodenectomy , this procedure is the removal of the duodenum with all or part of the pancreas.

Gastroesophageal reflux surgery is used to correct gastroesophageal reflux disease (GERD). GERD is a condition in which partially digested food or liquid travels from the stomach back up into the esophagus (the tube from the mouth to the stomach). At the lower end of the esophagus, there is a small ring of muscle called the lower esophageal sphincter (LES). The LES is a one-way valve that normally closes after swallowing to prevent back-up of the stomach juices. If the LES is not functioning properly, stomach acid or partially digested material will flow back in to the esophagus often inflaming the esophagus and causing heartburn and other symptoms.

Some procedures used are:

• Upper Gastrointestinal Endoscopy – For this procedure, the physician inserts an endoscope through the mouth where it travels down to the stomach, allowing the physician to view the esophagus, stomach and duodenum (upper gastrointestinal tract). Tissue samples can be obtained, polyps can be removed and bleeding can be treated. Thermal therapy can also be administered where electrodes are placed at multiple sites and the heat is used to create lesions that help strengthen the lower esophagus sphincter (LES). This procedure is done on an outpatient basis with local anesthesia for the throat and medication to relax the patient.
• Esophagogastric Fundoplasty – This surgery reinforces the valve between the esophagus and stomach by wrapping the upper portion of the stomach around the lowest portion of the esophagus, much like the way a bun wraps around a hot dog. This allows for increased pressure within the lower esophageal sphincter (LES), allowing the LES to strengthen and lengthen. This procedure can be performed both laparoscopic (using small incisions to enter the abdomen) or open (through a large incision to the patient's abdomen). This procedure is done on an inpatient basis under general anesthesia.

Hemorrhoid surgery (also called hemorrhoidectomy) is the surgical removal of hemorrhoids. Hemorrhoids are swollen or enlarged veins located inside (internal) or outside (external) the anus. They are usually caused by straining when constipated or during pregnancy. The surgery can remove large internal hemorrhoids that do not respond to nonsurgical treatment and large external hemorrhoids.

The surgery is performed in a surgery center under general or spinal anesthesia. The surgeon will make an incision in the tissue surrounding the hemorrhoid. The surgeon then ties off the swollen vein in the hemorrhoid to prevent bleeding and removes the hemorrhoid. The surgeon can remove the hemorrhoid with a knife (scalpel), a laser, or a cautery pencil. The area of the surgery is then either sewn closed or can be left open with gauze covering the wound.

Most patients can be released after the anesthetic wears off and the patient is able to urinate, although an overnight stay is not uncommon.

Hernia repair (or Herniorrhaphy) involves surgery to correct an abnormal protrusion of an organ through the wall of the area that normally holds the organ. This can happen when the outer layers of the abdominal wall weaken, bulge or rip. There are four types of hernias:

• Inguinal Hernia – The most common type of hernia; it occurs in the groin area.
• Umbilical Hernia – This is a hernia that develops through the navel.
• Incisional Hernia – This is a hernia that protrudes through a past surgical or operation site.
• Hiatal Hernia – This is a hernia that forms when the upper portion of the stomach slides into the chest cavity through the normal opening created by the esophagus.

If the protrusion can be pushed back into place, the hernia is referred to as reducible. If it cannot be, the hernia is referred to as irreducible, incarcerated or imprisoned. A strangulated hernia occurs when the blood supply to the tissue is cut off, causing worsening pain.

Most hernia repairs can be done on an outpatient basis. There are two methods used:

• Conventional Method – An incision is made over the site of the hernia. The surgeon returns the tissue to the abdominal cavity and removes the sac that has formed. The surgeon then sews strong surrounding muscle over the area.
• Laparoscopic Method – The surgeon inserts a scope through a small incision in the abdomen that the surgeon will use to view the contents of the abdomen with the use of a camera. The surgeon then makes repairs using instruments inserted into another small incision in the abdomen.

Both surgeries are performed using general anesthesia.

Laparoscopic gallbladder removal (also known as laparoscopic cholecystectomy) is a procedure in which the gallbladder is removed using instruments inserted through small incisions in the abdomen. The procedure is performed in an operating room with the patient under general anesthesia. Most patients are released from the hospital the following day; some may even go home the same day.

Using a narrow tube-like instrument called a cannula, the surgeon enters the abdomen through small incisions made near the area of the navel. Inserted through the cannula is a tiny camera, which allows the surgeon to view the internal organs. The gallbladder is removed through the cannula, as well. If the surgeon finds one or more stones, he or she may remove them with a special scope, may choose to have them removed later through a second invasive procedure, or convert to an open procedure for the surgery.

A liver biopsy is a medical procedure to remove a small amount of tissue from the liver for examination. The biopsy helps diagnose a number of liver diseases or assess the stage (early, advanced) of liver disease. This is especially important in hepatitis C infection. The biopsy also helps detect infections, cancer, unexplained enlarged liver, or abnormal liver enzymes detected by blood tests.

The biopsy is performed in a hospital setting under local anesthesia. The physician will use a needle to remove a small piece of liver tissue, which is sent to the laboratory for evaluation. The patient usually will remain lying down for one or two additional hours, to ensure that there have been no complications. The patient is then released and sent home.

The surgeon can also explore the bile ducts during the liver biopsy for congenital abnormalities such as atresia, in which the bile may back up into the liver.

Lumpectomy is the surgical procedure in which a cancerous lump or tumor in the breast is removed. The procedure is recommended only for those patients with less than 25 percent of the breast involved.

Lumpectomies can include excisional biopsy procedures. Biopsies are obtained either by needle or tissue sampling using either a scalpel or vacuum-assisted devices while under the guidance of ultrasound, MRI or other stereotactic diagnostic imaging.

To perform the lumpectomy, the surgeon will make a small incision over or near the breast tumor and cut free the lump and at least one-half inch of healthy tissue surrounding the tumor. The surgeon will submit the tissue to the pathologist for evaluation, often while the patient is still on the operating table, and if the extra tissue does not contain any cancerous cells, the excision will be sufficient. If cells are present, the surgeon may perform another sampling or perform a partial mastectomy.

A lung biopsy is a medical procedure in which a small amount of lung tissue is removed and examined by a pathologist for any abnormalities. The procedure is used to diagnose certain lung conditions, such as pulmonary fibrosis (scarring of the lungs with fibrotic tissue), sarcoidosis (clumps of cells formed in various organs), and cancer.

There are four types of lung biopsies:

• Bronchoscope Biopsy – For this method, a lighted instrument called a bronchoscope is inserted through the mouth or nose and into the airway to remove a lung tissue sample. This method is used if an infectious disease is suspected, if the abnormal tissue is located next to the breathing tubes (bronchi), or before trying more invasive methods.

  This is an outpatient procedure done by a pulmonologist with a local anesthetic sprayed into the mouth.

• Needle Biopsy – For this method, a long needle is inserted through the chest wall to remove a sample of lung tissue. A CT scan, ultrasound or a fluoroscope is used to guide the needle to the desired area. This is the best method if the abnormality is located close to the chest wall.

  This outpatient procedure is done by a pulmonologist or a radiologist with a local anesthetic applied to the area where the needle will be inserted.

• Open Biopsy – For this method, a surgical incision is made between the ribs and a sample of lung tissue is taken. This surgical procedure is done when all other methods have not been successful or when a larger piece of tissue is needed.

  This surgical procedure is performed by a thoracic surgeon or a general surgeon under general anesthesia while the patient is in the hospital.

• Video-Assisted Thorascopic Surgery – For this method, a thorascope is passed through a small incision in the chest to remove a sample of lung tissue.

  This surgical procedure is performed by a thoracic surgeon or a general surgeon under general anesthesia while the patient is in the hospital.

• Simple or Total Mastectomy – Removal of the breast, its skin, the nipple, but no lymph nodes.
• Subcutaneous Mastectomy – Removal of entire breast but leaves nipple and areola (dark pigmented area around the nipple) in place.
• Radical Mastectomy – Removal of the entire breast, nipple/areolar region, the major and minor chest muscles, and the lymph nodes.
• Modified Radical Mastectomy – Removal of the entire breast, nipple/areolar region, and the axillary lymph nodes.

Mastectomies are performed by a surgeon while the patient is under general anesthesia. The surgeon makes an incision near the site of the tumor and removes the breast tissue, and makes another incision to remove the lymph nodes, if scheduled. Drains are inserted either in the breast or under the arm to collect any fluid during the healing process. The surgery time averages two to three hours, but can increase due to reconstruction of the breast. Most patients can leave the hospital in two to three days.

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.

• In the open procedure, the surgeon makes an incision in the abdomen, under general anesthesia. This is performed in a hospital setting only and involves a hospital stay.

• The laparoscopic method is also performed in the hospital under general anesthesia but involves a shorter stay. The surgeon makes several small incisions in the abdomen, and using a tiny camera and instruments inserted through one of the openings, performs the removal of the spleen.