Endoscopic Retrograde Cholangiopancreatography (ERCP): An Overview

Introduction:

Endoscopic retrograde cholangiopancreatography (ERCP) is a procedure that uses combined endoscopic and fluoroscopic imaging for the ERCP, which was first developed as a diagnostic procedure. However, it has changed and is mostly used as a therapeutic method. This article briefly describes ERCP and its complications.

What Is ERCP?

Endoscopic retrograde cholangiopancreatography is referred to as ERCP. It is a procedure test that aids in diagnosing and treating disorders related to the pancreas, liver, bile ducts, or gallbladder. It combines an endoscope (a long, flexible, lighted tube equipped with a camera) with a fluoroscopic procedure. The doctor inserts the endoscope through the mouth and throat and then to the esophagus, stomach, and duodenum– the first portion of the small intestine. The doctor can see inside these organs to look for issues. Next, the doctor will insert a tube containing dye through the endoscope. This makes the organs more visible on X-rays.

Who Needs ERCP?

ERCP is performed in individuals if their pancreatic or bile ducts are blocked, constricted, or leaking as a result of

• Pancreatitis.

• Infection.

• Injuries to the duct.

• Gallstones in the gallbladder that get stuck in the common bile duct.

• Narrowing within the duct

• Pancreas cancer or bile duct cancer.

• Issues with the sphincter of Oddi muscle (controls bile and pancreatic juice flow).

What Is the Therapeutic Role of ERCP?

Many problems with the pancreatic and bile duct can be treated with ERCP, such as

• Stone removal.

• Balloon dilation is used to allow the flow of bile and pancreatic fluid.

• Opening narrowed ducts (sphincterotomy).

• Placing stents to keep ducts open.

• Drainage of pancreatic pseudocysts.

• Biopsy involves taking a sample of tissue for cancer analysis.

Who Performs ERCP?

A gastroenterologist usually performs an ERCP. They are specialists who treat conditions involving the digestive and biliary systems. They are also experts in endoscopies.

How Is ERCP Performed?

Before Procedure: Before the procedure, the patient should have a medical history with the doctor. Any health issues, allergies, or symptoms from the past or present are included in this medical history. One should discuss all the vitamins, prescriptions for supplements and over-the-counter medications one takes with the doctor.

• Aspirin or any medicine contains Aspirin.

• Arthritis, diabetes, or blood pressure medicines.

• Any blood thinners.

• Nonsteroidal anti-inflammatory drugs (NSAIDs).

One should inform the doctor if pregnant. ERCP during pregnancy is usually safe, although there is a higher risk of complications. When a pregnant patient needs an ERCP to address a problem, the physician may change the technique to shield the developing fetus from X-rays.

Refrain from eating or drinking. The doctor may advise not to drink or eat for up to eight hours before the procedure.

During Procedure:

An ERCP can be performed as a part of a hospital stay or as an outpatient procedure. An ERCP usually goes through the following steps;

• Before the procedure, sedatives or medicine will be administered to induce a state of relaxation and comfort. To administer sedatives, a healthcare professional will insert an intravenous (IV) needle into the arm or hand.

• A spray medication to numb the throat or liquid medication to gargle may also be provided by a healthcare professional. These medications may help to stop gagging during the procedure. In some cases, general anesthesia may be given.

• The patient is asked to lie on an examination table. When the patient is ready, the doctor will gently insert an endoscopic tube through the mouth down the esophagus and into the stomach and duodenum until it reaches the ducts of the biliary tree. A tiny tube called a catheter is inserted into the endoscope into a biliary tree. This small tube is filled with a special contrast dye. A doctor injects a contrast dye into the ducts by using this catheter. This dye increases the duct's visibility on X-rays, and the ducts are examined using a form of X-ray imaging known as fluoroscopy to look for obstruction. Before contrast dye, the air is pumped into the stomach and duodenum through an endoscope for easy visualization. A tiny camera fixed on the endoscope sends the video image to the monitor.

• If the doctor finds a problem during the procedure. The doctor may insert small instruments through an endoscope to treat the problems in the bile and pancreatic doctors.

What to Expect After the ERCP Procedure?

The patient stays at the hospital for an hour or two following the ERCP procedure while the anesthesia wears off. After the procedure, some patients may have minor discomfort for one or two days. Possible symptoms include;

• Sore throat.

• Difficulty in swallowing.

• Bloated stomach or gas pain.

• Nausea.

Following a clear liquid diet for four to six hours after the procedure may be advised by the doctor. Some patients might need to wait for 24 hours before taking solid food.

What Are the Complications Of ERCP?

Some possible complications of ERCP include;

• Pancreatitis (Inflammation of the Pancreas): This is the most prevalent serious ERCP complication.

• Cholecystitis: ERCP rarely causes inflammation of the gallbladder (cholecystitis), but there may be a higher risk of it if gallstones are already present.

• Cholangitis (Inflammation of Bile Duct): Post-ERCP cholangitis occurs at a rate of one percent or less.

• Gastrointestinal Hemorrhage (Bleeding): Hemorrhage is an ERCP complication especially when a procedure called sphincterotomy is performed. Most of the bleeding is minor but in rare cases, severe bleeding may happen.

• Perforation: Perforation means a hole in an organ. It is a rare but serious complication of ERCP. It occurs in 0.1 percent to 0.6 percent of ERCP procedures.

• Biloma: Bile gets collected outside the biliary system.

• Allergic Reactions: Allergic reaction to contrast dye or sedative. This may result in problems with blood pressure, heart rate, and breathing.

• Other Complications: Pneumothorax, hepatic hematoma, post-sphincterotomy papillary or ampullary restenosis, and duodenal obstruction

Conclusion:

Even though ERCP was first developed as a diagnostic technique, it has now primarily been used as a therapeutic therapy. Healthcare professionals should be aware that although ERCP is a beneficial technique for many bile duct illnesses, it is also linked with serious morbidity. To reduce these risks, patients should undergo preoperative screening. The endoscopist, gastrointestinal nurse, and anesthesiologist can work together as an interprofessional team for improved results.