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Dr. Marcus Oosenbrug, MD, CM is a general surgeon in Washington, DC specializing in general surgery and colon & rectal surgery. He graduated from McGill University Faculty of Medicine in 2018 and has 8 years of experience. Dr. Marcus Oosenbrug, MD, CM is affiliated with MedStar Georgetown University Hospital, MedStar Washington Hospital Center, MedStar Health and CLEVELAND CLINIC FLORIDA (A NONPROFIT CORPORATION).
Colectomy (Colon Resection)
Colectomy is surgery to remove all or part of the colon, or the longest part of the large intestine. The colon may be affected by diseases such as cancer or inflammatory bowel disease. In a colectomy, all or part of the colon that is infected, blocked, or cancerous is removed.
A colectomy may be performed by laparoscopic or open surgery. A laparoscopic colectomy requires several small cuts on the abdomen, and uses a thin tube with a camera, called a laparoscope. Laparoscopic colectomies are less invasive than open procedures. For some individuals, a laparoscopic colectomy may not be possible, and instead an open colectomy is performed. In an open colectomy, a large incision is made on the abdomen. Open colectomies typically require longer recovery periods.
After the incisions are made, a portion of the colon is removed, and the remaining ends of the colon are attached to each other in a procedure called anastomosis. Waste can continue to travel through the body as normal. However, in some situations, it may be necessary for the end of the colon to be attached to an opening in the abdomen, called a stoma. This procedure is called an ostomy. Types of ostomies include:
An ostomy bag will be attached to the skin to collect waste. If the entire colon is removed, either an ileostomy is performed, or the small intestine is connected to the anus and waste may pass through as normal.
Stomas may be permanent or temporary. If the stoma is temporary, the ends of the colon will be rejoined in a later procedure. Temporary stomas are generally used to allow time for the colon to heal following surgery.
A colectomy may take between one and four hours. Following the procedure, patients will need to consume a liquid and low fiber diet before gradually returning to their normal diet. Patients will need to stay in the hospital for three to seven days for monitoring. Full recovery and return to normal activity may take anywhere from a few weeks to several months.
Gastrointestinal Problems (Digestive Disorders)
The gastrointestinal system, or GI tract, is the name given to a collection of organs that work together to digest food. These organs fit together in a long tube, running from the mouth to the anus, and include the esophagus, stomach, and intestines, among others. With so many parts working together, complicated by today's busy lifestyles and diets, digestive problems are common. As many as 1 in 3 Americans have a digestive or GI disorder. There are a huge variety of digestive problems, but the most common are IBS, constipation, GERD, hemorrhoids, and ulcers.
IBS, or irritable bowel syndrome, happens when the muscles surrounding the colon contract too easily or frequently. The result is abdominal pain, cramps, diarrhea or constipation, gas and bloating. IBS attacks can often be brought on by specific triggers, so a key part of treatment is learning which foods trigger IBS attacks and avoiding them. Treatment also includes exercise, avoiding stress, and medications if needed.
Constipation, or large, hard, or infrequent stools, happens to everyone at some point. It can be caused by a disruption in routine or food, or by eating a diet without many fresh fruits and vegetables. Although it is uncomfortable, constipation is common and usually not serious, but it can sometimes become chronic. Adding fiber to the diet, exercising, and taking medications may help.
GERD, or gastroesophageal reflux disease, is a severe form of chronic heartburn where stomach acid spills back up into the esophagus. Left untreated, the acid may even eat away at the esophagus and cause serious damage. Treatment includes changing the diet to avoid trigger foods, losing weight if needed, medications, or even surgery.
Hemorrhoids are blood vessels around the rectum that become irritated, swollen or torn while straining during a bowel movement. They are most often caused by constipation, but can also be caused by pregnancy, diarrhea, or simply a genetic predisposition towards hemorrhoids. Treatment involves first treating any constipation issues, then keeping the area clean and soothed until it has healed. If these measures are ineffective, surgery is sometimes used.
Peptic ulcers are sores or spots of inflammation in the lining of the stomach or close to the stomach in the small intestine. Usually this area is coated with a protective lining that shields the tissue from the strong stomach acid, but a break in the lining can let acid in, causing the sores. It used to be thought that stress caused ulcers, but now it is known that is not the case. Most often, they are caused by an infection by H. pylori bacteria, but ulcers can also be caused by alcohol abuse or overuse of aspirin, ibuprofen, naproxen, or other NSAIDS. The symptoms of an ulcer are pain, hunger, nausea, and fatigue.
Gastrointestinal problems, perhaps more than any other area, are markedly affected by lifestyle. Many disorders can be prevented or treated at least in part by eating a healthy diet high in fiber, exercising regularly, drinking enough water, and limiting alcohol intake. Still, the frequency of digestive disorders means that even the healthiest person can be affected by them. Anyone who notices blood in their stool, experiences abdominal pain, unexplained weight loss, or any significant change in bowel movements should see a doctor.
Small Bowel Resection
Small bowel resection is a surgical procedure performed to remove all or part of the small intestine. The small intestine absorbs nutrients from food and passes waste to the large bowel. Tumors or conditions such as cancer or inflammatory bowel disease can cause injury to the intestine or lead to blockage. To allow the small intestine to function normally, surgery to remove part of the intestine may be necessary.
Small bowel resection can be done through either a laparoscopic or open approach. If someone is having a laparoscopic small bowel resection, their surgeon will make multiple small incisions on the abdomen and insert a thin tube with a camera, called a laparoscope. If they are having an open small bowel resection, a large cut is made on the abdomen to expose the intestine. A laparoscopic small bowel resection is associated with less pain and requires a shorter recovery period, but depending on the condition, patients may have to undergo an open procedure.
After making the necessary incisions, the surgeon will remove the targeted portion of the intestine and then perform an anastomosis. Depending on the amount of intestine left, an anastomosis may involve the surgeon either joining together the ends of the intestine or creating a stoma which is an opening in the abdomen. In this procedure, called an ileostomy, the end of the small intestine (ileum) is attached to the opening in the abdominal wall. A drainage pouch will be attached to the skin to collect waste.
Stomas may be permanent or temporary. If the stoma is temporary, the ends of the intestine will be rejoined in a later procedure. Temporary stomas are generally used to allow time for the intestines to heal following surgery.
Small bowel resection is typically completed in one to four hours. After the operation, patients will need to stay in the hospital for a few days, and it may take some time before they can return to their normal diet.
Dr. Marcus Oosenbrug, MD, CM graduated from McGill University Faculty of Medicine in 2018. He completed residency at University of Toronto Affiliated Hospitals. He is certified by the American Board of Surgery, General Surgery and has a state license in Florida.
Medical School: McGill University Faculty of Medicine (2018)
Residency: University of Toronto Affiliated Hospitals (2023)
Board Certification: American Board of Surgery, General Surgery
Licensed In: Florida
Dr. Marcus Oosenbrug, MD, CM is associated with these hospitals and organizations:
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Dr. Marcus Oosenbrug sees patients in Weston, FL. His medical specialty is colon & rectal surgery. Dr. Oosenbrug obtained a license to practice in Florida.