Description
Gastrointestinal surgery is a treatment for diseases of the parts of the body involved in digestion. GI surgery to treat benign conditions that affect the digestive tract, which includes the esophagus, stomach, intestines, appendix, gallbladder, pancreas, liver, and bile ducts.
Summary Listen
- Gastrointestinal surgery encompasses procedures from the esophagus to the anal canal, addressing diseases of abdominal organs. It's divided into subspecialties: upper GI (esophagus and stomach), HPB (liver, biliary tract, pancreas), small intestine, colorectal (large intestine and anal canal), and bariatric/metabolic surgery.
- Upper GI surgery focuses on esophageal cancer and hiatal hernias, where the stomach protrudes into the chest cavity, causing gastroesophageal reflux. Stomach surgeries for peptic ulcers are now rare due to effective medications, but gastric outlet obstruction may require surgery to connect the stomach to the small intestine.
- HPB surgery treats gallbladder issues like stones and cancer, liver cancer, pancreatic cancer, and splenic problems. It includes liver transplantation for end-stage liver disease. Small intestine surgeries address obstructions, cancers, Crohn's disease, bleeding, appendicitis, and hernias.
- Colorectal surgery manages diseases of the large intestine, including ulcerative colitis and colon cancer. It also addresses anal canal issues like piles, fissures, and perianal abscesses, which can be difficult to treat due to high recurrence rates.
- Bariatric/metabolic surgery isn't solely for weight loss but treats obesity and associated diabetes. It can improve diabetes control, quality of life, and obstructive sleep apnea. Endoscopic sleeve gastrectomy and gastric bypass are common procedures.
- Surgical approaches include open surgery, laparoscopic surgery (using cameras and instruments), and robotic surgery, which enhances precision. Gastrointestinal surgery has a higher complication rate than cardiovascular surgery, requiring careful patient selection and risk-benefit assessment.
- Common complications include bleeding, postoperative lung issues, anastomotic leaks (intestinal content leakage), acute kidney injury, acute respiratory distress syndrome, and pulmonary embolism. Prevention involves meticulous surgical techniques, adequate hemostasis, anatomical knowledge, and patient selection.
- Sepsis, a life-threatening organ dysfunction caused by a dysregulated host response to infection, is a major concern. Diagnosis involves recognizing it is not solely identified by high white blood cell counts. Treatment includes immediate fluid administration, broad-spectrum antibiotics, and source control (removing the source of infection).
- Early mobilization, oral nutrition, and minimal tubing after surgery aid recovery. Enhanced recovery protocols, like patient motivation, reduce complications.
- Liver disease is a significant public health problem. Liver cancer can be treated with surgery, transarterial chemoembolization, stereotactic radiation, or systemic therapy. Liver transplantation is an option for those with tumors not suitable for surgery, with good five-year survival rates.
- Liver metastases from other cancers can be treated with liver surgery in selected patients, offering a better chance of survival compared to no treatment. Liver transplantation can also treat underlying viral infections.
- Liver transplantation is considered for refractory ascites, recurrent bleeding, kidney injury, and acute liver failure. Common indications include liver cirrhosis (often caused by hepatitis B and fatty liver disease) and liver cancer. Organ donation rates are improving, but live donor transplants are common.
- Live donor liver transplantation involves a family member donating part of their liver, which regenerates in both donor and recipient. Donors must meet specific health criteria. Liver transplant survival rates are high, with some patients surviving for decades.
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