Pancreatitis Notes

Pancreatitis

Overview

• Pancreatitis is an inflammation of the pancreas that can be acute (sudden onset) or chronic (long-term).
• It impairs both exocrine (digestive enzyme production) and endocrine (hormonal regulation, including insulin) functions of the pancreas.
• Complications can include diabetes and malnutrition.

Acute Pancreatitis

• Sudden inflammation of the pancreas due to premature activation of digestive enzymes within the pancreas.
• This leads to self-digestion and tissue damage.
• Rapid onset can cause widespread inflammation, potentially affecting other organs.
• The pancreas becomes inflamed, swollen, and painful; tissues may die, leading to fibrosis, cyst formation, and abscesses.
• Inflammation and digestive enzyme leakage can damage surrounding organs.
• Damage to the lungs can lead to ARDS (acute respiratory distress syndrome).
• Damage to blood vessels can lead to bleeding and hemorrhage.

Pathogenesis

• A self-perpetuating cycle of enzyme activation, tissue destruction, and inflammation is central to the pathogenesis.

Causes

• Gallstones: block the pancreatic duct, impeding enzyme flow.
• Excessive alcohol consumption: directly damages pancreatic cells and disrupts enzyme regulation.
• Other causes: high triglyceride levels, certain medications, abdominal trauma, infections, genetic predispositions.
• Idiopathic: unknown trigger.

Gallstones

• Gallstones accumulate in the gallbladder and may migrate into the common bile duct.
• Obstruction of the common bile duct and pancreatic duct causes a backup of pancreatic enzymes, increasing pressure within the pancreas.
• Elevated pressure triggers premature activation of digestive enzymes.

Chronic Alcohol Consumption

• Damages pancreatic acinar cells and ductal epithelial cells.
• Disrupts bicarbonate production and alters fluid levels, leading to thickening of pancreatic secretions.
• Thicker pancreatic juices can obstruct the pancreatic duct, causing enzyme activation.

Symptoms

• Extreme abdominal pain, typically in the mid-epigastric and left upper quadrant.
• Pain worsens when lying flat due to compression of the swollen, inflamed pancreas by the peritoneum.
• Pain is due to inflammation and digestive enzymes leaking into tissues.
• Pain frequently occurs 24-48 hours after a heavy meal or alcohol ingestion.
• Pain is not relieved by antacids (unlike acid reflux pain).
• Abdominal distension and decreased peristalsis with hypoactive bowel sounds may occur due to ileus formation secondary to the inflammation.
• Vomiting that fails to relieve pain or nausea.
• Hypotension reflects hypovolemia and shock caused by the loss of large amounts of protein-rich fluid into the tissues and peritoneal cavity.
• Increased permeability of blood vessels leads to fluid shifting and low blood volume.
• The patient looks acutely ill and often has abdominal guarding, assuming a semi-fetal position.
• Echymosis (bruising) on the flank (Grey Turner's sign) or around the umbilicus (Cullen's sign) may indicate severe pancreatitis with retroperitoneal hemorrhaging.
  • Cullen's sign: Bruising around the umbilicus. Remember, "C" goes around the belly button.
  • Grey Turner's sign: Bluish discoloration on the flanks.

Diagnosis

• Based on a history of abdominal pain, risk factors, and physical assessment findings.
• Amylase and lipase levels are elevated (lipase is more pancreas-specific).
• History of gallstones, alcohol use, and viral infections aids diagnosis.
• White blood cell count is usually elevated.
• Hypocalcemia: correlates with the severity of pancreatitis, due to fat saponification (lipase breaks down fat, releasing free fatty acids that bind to calcium).
• Hyperglycemia and glucosuria may occur.
• Elevated serum bilirubin levels may also occur.
• C-reactive protein (CRP) levels will often be elevated.
• Ultrasound and contrast-enhanced CT or MRI scans identify an increase in the diameter of the pancreas and detect pancreatic cysts, abscesses, or pseudocysts.

$Fat + Lipase \rightarrow Free\ Fatty\ Acids + Calcium \rightarrow Insoluble\ Calcium\ Salts$

Nursing Management

• Focuses on addressing symptoms, preventing complications, and promoting recovery.
• Pain relief:
  • Administer prescribed analgesics (often opioids).
  • Monitor pain levels regularly.
  • Non-pharmacological interventions: semi-Fowler's position or sitting leaning forward.
• Monitoring respiratory status:
  • Assess lung sounds and monitor oxygen saturation.
  • Watch for signs of respiratory distress (increased respiratory rate, use of accessory muscles).
  • Administer supplemental oxygen if needed.
• Nutritional support:
  • Initially NPO to rest the pancreas.
  • Enteral feeding (nasogastric or nasojejunal tube) may be needed.
  • Parenteral nutrition may be required in severe cases.
  • Monitor nutritional status, including lab values and signs of malnutrition.
• Skin integrity:
  • Regular repositioning and use of pressure-relieving devices should be used to prevent breakdown.
• Maintain skin integrity; prevent breakdown.
  • Regular repositioning, pressure-relieving devices, and skin assessments are necessary.
  • Manage fluid balance (especially in patients with ascites) to protect skin.
• Monitor and manage potential complications:
  • Hypovolemia
  • Hypocalcemia
  • Infection
  • Systemic inflammatory response syndrome (SIRS)
  • Monitor vital signs, laboratory results (electrolytes, calcium levels), and fluid balance.
  • Interventions: IV fluids, electrolyte replacement, antibiotics, or surgical intervention.

Chronic Pancreatitis

• Long-term, progressive inflammatory condition leading to irreversible damage.

Pathophysiology

• Recurrent inflammation (often triggered by chronic alcohol abuse, genetic predispositions, or autoimmune conditions).
• Pancreatic tissue is damaged and replaced by fibrotic tissue.
• Loss of both exocrine and endocrine functions.
• Ductal changes (strictures and calcifications) obstruct pancreatic juice flow, leading to further tissue injury and pancreatic insufficiency.
• Patients may experience malabsorption, weight loss, and diabetes.

Signs and Symptoms

• Gradual, worsening over time as the pancreas loses function.
• Chronic abdominal pain: typically in the upper abdomen and may radiate to the back; can be persistent or episodic; may worsen after eating or drinking (especially fatty meals).
• As the pancreas becomes increasingly damaged, pain may lessen in intensity.
• Steatorrhea (fatty, foul-smelling stools) due to insufficient digestive enzyme production.
• Malabsorption, resulting in weight loss and nutritional deficiencies (particularly fat-soluble vitamins A, D, E, and K).
• Diabetes in advanced cases (destruction of insulin-producing cells).
• Other symptoms: nausea, vomiting, bloating, and occasional jaundice (if there is a bile duct obstruction).
• Symptoms contribute to a significant decline in the patient's quality of life.

Medical Management

• Focuses on relieving symptoms and preventing further pancreatic damage by resting the pancreas and minimizing enzyme stimulation.
• Initially NPO to allow the pancreas to rest and avoid enzyme production stimulation.
• Gradual reintroduction of food according to physician's orders, emphasizing avoiding fats.
• Dietary management:
  • Avoid alcohol, greasy, fatty foods, and follow a low-fat, bland diet consisting of small, frequent meals.
  • Limit sugars and refined carbohydrates, opting for complex carbohydrates (whole grain breads).
• IV hydration is necessary to maintain fluid balance, especially when NPO for extended periods.
• For long-term nutritional support, total parenteral nutrition (TPN) may be required.
• A nasogastric tube may be used to decompress the stomach by removing stomach contents and gas, helping to alleviate nausea and vomiting.
• In cases where oral intake is insufficient, nutritional supplements may be required, including fat-soluble vitamins.
• Monitor bowel movements (greasy, foul-smelling stools suggest insufficient enzyme replacement; formed, solid stools indicate effective enzyme therapy).
• Urine output and color should be closely watched (dark brown urine can signal complications or dehydration).
• Pain management: avoid morphine, which can cause spasms of the sphincter of Oddi; alternative pain medications or non-opioid treatments may be preferred.
• Non-pharmacological measures: repositioning (leaning forward or sitting up) can help alleviate discomfort.
• For patients with diabetes secondary to chronic pancreatitis, treatment often involves insulin therapy.
  • Blood sugar monitoring and insulin adjustments are essential to controlling hyperglycemia and preventing complications associated with diabetes.

Mnemonic:

• Vitamins A, D, E, and K are fat soluble, and the little saying is all dogs eat kibble.

Medication

• Chronic pancreatitis often requires a multi-pronged approach to manage pain, malabsorption, and nutritional deficiencies.

• Pancrelipase

  • (Creon)

    • Combination of digestive enzymes, including amylase, lipase, and protease, and is crucial for breaking down fats, proteins, and carbohydrates, improving digestion and nutrient absorption.
    • Should be taken with meals or snacks to maximize its effectiveness.
    • Patients should swallow the pancrelipase capsules whole, or if unable to swallow the capsules, open them up and mix the contents with a small amount of acidic food like applesauce or juice.
    • And you want to avoid high pH or alkalotic foods like milk or antacid when when you opening up the capsules.
    • And then once you open them, you want to consume the mixture immediately.
    • Crushing or chewing the capsules can activate the enzymes.

• Proton pump inhibitors (PPIs)

  • Omeprazole and pantoprazole

    • May be prescribed to reduce gastric acid production.
    • This helps create a more favorable pH environment in the duodenum where the pancreatic enzymes work best.
    • PPIs are generally taken once a day, usually before breakfast on an empty stomach.

• Fat-Soluble Vitamins

  • Given because chronic pancreatitis can impair fat absorption

    • These vitamins are often supplemented to address these deficiencies, and these vitamins should ideally be taken with a meal that contains some amount of fat to help enhance absorption.

Surgical Management

• Endoscopic retrograde cholangiopancreatography or ERCP:

  • May be performed to assess the pancreas, bile ducts, and gallbladder using a scope.

    • Gallstones may be removed.
    • A blocked duct may be dilated.
    • A cyst may be drained.
    • A stent may be placed to help keep a bile duct open.

• Surgical intervention is considered for patients with chronic or recurrent episodes unresponsive to medical treatment or in cases of severe complications (pseudocysts, abscesses, or bile duct obstructions).

  • Pancreaticcojejunostomy
    • a Roux en Y
    • Performed to relieve ductal obstruction and reduce pain in chronic pancreatitis.
    • The pancreatic duct is surgically opened and connected to the jejunum, allowing pancreatic juices to drain directly into the intestines, thereby reducing ductal pressure and preventing further damage to pancreatic tissue.
  • Whipple procedure
    • Used for cases involving severe inflammation or pancreatic cancer.
    • Involves the removal of part of the pancreas, part of the small intestine (usually the duodenum), removal of the gallbladder and common bile duct.
    • The remaining pancreas and digestive organs are then reconnected to the gastrointestinal tract to maintain digestive function.
    • May also be performed in cases of severe chronic pancreatitis to remove diseased tissue and help relieve symptoms.

Cholelithiasis/Cholecystitis

Cholelithiasis

• Gallstones
• Most people don't have signs and symptoms.

Cholecystitis

• Gall stones obstruct the cystic duct, leading to inflammation of the gallbladder.
• Signs and symptoms include right upper quadrant abdominal pain, pain after the ingestion of high fat foods, nausea and vomiting, bloating, and gas.
• Risk factors - 4 Fs: female, fat, over 40, and a family history.

Nutritional Guidance

• Consume a low-fat diet.
• Avoid fried foods and greasy foods.
• Increase fiber intake.
• Avoid refined carbohydrates.
• Lose weight (if applicable).
• Get regular physical exercise.

Cirrhosis

• Characterized by damage and scarring of the liver.
• Key causes: alcoholism, non-alcoholic fatty liver disease, and chronic hepatitis.
• Symptoms: fatigue, nausea, vomiting, jaundice, ascites and bleeding.

Vitamin A

• Plays a number of important functions in the body, including supporting vision as well as immune function and cell growth.
• Food sources include orange and yellow vegetables and fruits.
• Deficiency: xerophthalmia, which is a condition of the eye that can cause night blindness, drying of the cornea, and drying of the conjunctiva.

Vitamin D

• Most people get it from sunlight.
• It's needed by your body for calcium absorption.
• Deficiency: bone deformities or osteomalacia in adults (bone pain and seizures)

Vitamin E

• Acts as an antioxidant.
• Helps to support immune function and also supports metabolism.
• Food sources include seeds, nuts, vegetable oil, and green leafy vegetables like broccoli, kale and collards, and soybeans.

Vitamin K

• Deficiency places an individual at increased risk for bleeding .