Severe Pancreatitis Criteria

Written by Wei Shi Liang
Intensive Care Unit
Updated on September 04, 2024
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Acute pancreatitis with persistent organ failure lasting more than 48 hours is considered severe pancreatitis. In the early stages of the disease, organ failure starts with a systemic inflammatory response produced by the activation of a cytokine cascade, involving the continuous failure of single or multiple organs. Such patients often have one or more local complications, with organ failure that can persist for several days after onset. The mortality rate can reach 36% to 50% once organ failure occurs. Infections in such patients can dramatically increase the mortality rate. CT imaging may show gas bubbles in peripancreatic necrotic tissue and fluid collections. Diagnosis is confirmed by positive results from either a smear of aspirate obtained via image-guided fine-needle aspiration or from bacterial cultures.

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Written by Wei Shi Liang
Intensive Care Unit
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Two major signs of severe pancreatitis

In patients with severe pancreatitis, physical examination may reveal abdominal distension with tympanic percussion sounds, prominent tenderness in the upper middle abdomen, and potentially widespread abdominal pain centered in the upper middle area. Some may exhibit rebound tenderness, moderate muscle tension is common, and a few cases may demonstrate shifting dullness. Occasionally, a mass in the upper middle abdomen can be palpated, possibly due to fluid in the lesser sac. Auscultation may reveal diminished or absent bowel sounds, accompanied by cessation of passing gas or stool, indicating features of paralytic ileus.

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Written by Wang Li Bing
Intensive Care Medicine Department
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Treatment of severe pancreatitis

Severe pancreatitis must be managed with comprehensive measures and aggressive rescue treatment. For medical treatment, the first step is to enhance monitoring of vital signs such as heartbeat, respiration, and blood pressure. The second step involves actively replenishing fluids and electrolytes to maintain effective blood volume. Severe cases often experience shock, and it may be appropriate to administer albumin, plasma, etc. The third step for patients with severe pancreatitis, who typically have high metabolic demands, is to enhance nutritional support, possibly using parenteral nutrition. The fourth step involves routine use of antibiotics for severe pancreatitis to prevent infections related to pancreatic necrosis. The fifth step involves using somatostatin analogs like octreotide to suppress the secretion of pancreatic enzymes and pancreatic juice as part of conservative medical treatment. If pancreatic necrosis is complicated with infection, or if a pancreatic abscess forms, surgical treatment can be considered.

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Written by Wu Hai Wu
Gastroenterology
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How many days of fasting for acute pancreatitis?

The duration for which patients with acute pancreatitis must fast is determined by the severity of their condition. Some may only need to fast for a day or two, while others may require around three to four days, or even a week. In severe cases of acute pancreatitis, it might be difficult to say how long the fasting could last, potentially around two weeks. Once patients with pancreatitis start eating after a series of active treatments such as anti-infection measures, inhibiting pancreatic secretion, replenishing electrolytes, and balancing acid-base levels, and following treatments like using rhubarb to facilitate bowel movements, if their bowel movements and gas expulsion have mostly returned to normal and amylase levels have largely normalized, they can cautiously start consuming low-fat, high-vitamin, and high-calorie liquid foods.

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Written by Wei Shi Liang
Intensive Care Unit
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Severe pancreatitis intestinal nutrition

In different stages of severe pancreatitis, the energy requirements vary. At the early onset of the disease, the principle of nutritional support is to provide the minimum metabolic substrates needed to maintain basic metabolic demands, correct metabolic disorders, and minimize protein loss to a reasonable level. Caloric provision should be between 20 to 25 kcal per kilogram per day. As the condition progresses, the focus of nutritional support gradually shifts towards increasing or balancing nutrient intake. Early intervention using jejunal tube feeding is considered safer. Formulas used should be tolerable by the intestines; initially, glucose water is used to help the intestines adapt to nutrition. Early use of low-fat formulas containing amino acids or short peptides is advisable. Additionally, whole proteins, after being digested by stomach acid and entering the intestines directly, may lead to poor absorption.

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Written by Chen Rong
Gastroenterology
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How to check for pancreatitis?

The examination of pancreatitis requires laboratory tests and imaging examinations to assess the severity of the condition and to identify the cause. Elevated amylase and lipase levels more than three times the normal values, increased white blood cells, elevated C-reactive protein, increased blood sugar, elevated transaminases and bilirubin, decreased albumin, increased urea nitrogen and creatinine, decreased blood oxygen partial pressure, decreased blood calcium, elevated triglycerides, and abnormalities in blood sodium, potassium, and pH values all reflect the severity of pancreatitis. Abdominal ultrasound is a routine initial screening imaging examination for acute pancreatitis, and abdominal CT is helpful in confirming the presence of pancreatitis, peripancreatic inflammatory changes, and pleural effusion. Enhanced CT is beneficial in determining the extent of pancreatic necrosis and is generally performed about a week after the onset of the condition. However, when searching for the cause of pancreatitis, the sensitivity and accuracy of CT are not as good as MRI, therefore further MRI should be conducted to investigate causes related to the bile duct and to determine the cause of the pancreatitis.