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          Acute cholecystitis 

 
 

                

Acute cholecystitis is seen in less than 10% of cholecystectomy specimens in most centres.

There is a female preponderance with a mean age of 60 years.

Cystic duct obstruction is the most important event in the etiology.

The role of bacteria is controversial in the etiology of acute cholecystitis.

It is more common to find a solitary stone obstructing Hartmann’s pouch than in chronic cholecystitis where multiple stones are usually found.

The mucosa may be replaced by necrotic slough when acute  cholecystitis is severe.

The histological findings will vary a little according to severity and stage  in evolution.

Early in the disease, marked edema is the main feature with fibrin extravasation and hemorrhage being seen in some cases. Mucosal ulceration and necrosis may be present depending on the severity.

The neutrophilic infiltrate is most prominent at 3-5 days. Fibroblasts are prominent by day ten.

Pre-existing chronic cholecystitis may also be present.

The overall mortality is 4%. This is improved upon by early cholecystectomy.

Visit: Acalculous cholecystitis ; Emphysematous cholecystitis.

                     

Unusual cases of acute cholecystitis and cholangitis: Tokyo Guidelines.J Hepatobiliary Pancreat  Surg. 2007;14(1):98-113. 

Unusual cases of acute cholecystitis and cholangitis include (1) pediatric biliary tract infections, (2) geriatric biliary tract infections, (3) acalculous cholecystitis, (4) acute and intrahepatic cholangitis accompanying hepatolithiasis (5) acute biliary tract infection accompanying malignant pancreatic-biliary tumor, (6) postoperative biliary tract infection, (7) acute biliary tract infection accompanying congenital biliary dilatation and pancreaticobiliary maljunction, and (8) primary sclerosing cholangitis. Pediatric biliary tract infection is characterized by great differences in causes from those of adult acute biliary tract infection, and severe cases should be immediately referred to a specialist pediatric surgical unit. Because biliary tract infection in elderly patients, who often have serious systemic conditions and complications, is likely to progress to a serious form, early surgery or biliary drainage is necessary. Acalculous cholangitis, which often occurs in patients with serious concomitant conditions, such as those in intensive care units (ICUs) and those with disturbed cardiac, pulmonary, and nephric function, has a high mortality and poor prognosis. Cholangitis accompanying hepatolithiasis includes recurrent pyogenic cholangitis, an epidemic disease in Southeast Asia. Biliary tract infections, which often occur after a biliary tract operation and treatment of the biliary tract, may have a fatal outcome, and should be carefully observed. The causes of acute cholangitis associated with pancreaticobiliary maljunction differ before and after operation. Direct cholangiography is most useful in the diagnosis of primary sclerosing cholangitis. If cholangiography visualizes a typical bile duct, differentiation from acute pyogenic cholangitis is easy. This article discusses the individual characteristics, diagnostic criteria, treatment guidelines, and prognosis of these unusual types of biliary tract infection.

Definitions, pathophysiology, and epidemiology of acute cholangitis and cholecystitis: Tokyo Guidelines. J Hepatobiliary Pancreat Surg. 2007;14(1):15-26.

This article discusses the definitions, pathophysiology, and epidemiology of acute cholangitis and cholecystitis. Acute cholangitis and cholecystitis mostly originate from stones in the bile ducts and gallbladder. Acute cholecystitis also has other causes, such as ischemia; chemicals that enter biliary secretions; motility disorders associated with drugs; infections with microorganisms, protozoa, and parasites; collagen disease; and allergic reactions. Acute acalculous cholecystitis is associated with a recent operation, trauma, burns, multisystem organ failure, and parenteral nutrition. Factors associated with the onset of cholelithiasis include obesity, age, and drugs such as oral contraceptives. The reported mortality of less than 10% for acute cholecystitis gives an impression that it is not a fatal disease, except for the elderly and/or patients with acalculous disease. However, there are reports of high mortality for cholangitis, although the mortality differs greatly depending on the year of the report and the severity of the disease. Even reports published in and after the 1980s indicate high mortality, ranging from 10% to 30% in the patients, with multiorgan failure as a major cause of death. Because many of the reports on acute cholecystitis and cholangitis use different standards, comparisons are difficult. Variations in treatment and risk factors influencing the mortality rates indicate the necessity for standardized diagnostic, treatment, and severity assessment criteria.

Endoscopic gallbladder drainage of patients with acute cholecystitis. Endoscopy. 2007 Apr;39(4):304-8.

BACKGROUND AND STUDY AIM: The standard treatment for acute cholecystitis is early laparoscopic cholecystectomy. In cases of increased operative risk surgery may be postponed or rejected, and instead alternative methods, such as percutaneous or endoscopic drainage, may be attempted. This paper is a retrospective assessment of our results with endoscopic gallbladder drainage (EGBD) by means of endoscopic retrograde cholangiopancreatography (ERCP). PATIENTS AND METHODS: Over a 9-year period, data from all patients who underwent attempted EGBD, primarily referred for diagnosis and treatment of cholestasis by ERCP, were analyzed. EGBD was attempted in those patients who had concomitant acute cholecystitis. RESULTS: EGBD was successful in 24 of 34 patients with acute cholecystitis (70.6%). The success rate rose from 50% during the first 4-year period to 89% during the subsequent 5-year period. Of the 24 patients in whom EBGD had been successful, 21 showed clinical improvement and 10 were finally managed nonoperatively. Of the 21 clinically improved patients, 14 underwent elective surgery a median of 24 days later. Of the 10 patients in whom EGBD failed nine underwent surgery four of whom required surgery within one week. CONCLUSION: Treatment of acute cholecystitis in patients could be done successfully by EGBD, and in 70% of cases cholecystectomy could then be carried out on an elective basis rather than as emergency surgery. Some patients could be treated with EGBD alone. Future prospective trials will clarify the role of EGBD in patients with acute cholecystitis.

Acute cholecystitis complicating cardiac surgery: case series involving more than 16,000 patients.Ann Thorac Surg. 2007 Mar;83(3):1096-101.

BACKGROUND: Acute cholecystitis after cardiac surgery is rare but carries a high mortality. Its management remains controversial. METHODS: We reviewed all cases of calculous cholecystitis (CC) and acalculous cholecystitis (ACC) encountered at our institution over the past 11 years. Data collection included preoperative variables, details of performed procedures, postoperative course, and outcome. RESULTS: The overall incidence was 0.03% for CC and 0.08% for ACC (5 and 13 of 16,576 patients, respectively). Patients in the ACC group appeared to be sicker patients whereas most patients in the CC group had an uncomplicated recovery from cardiac surgery. The diagnosis was straightforward with typical presentation and ultrasonographic findings in the CC group. In the ACC group, the presentation was less specific, and although useful as diagnostic tool, ultrasonography findings were not as consistent as in the CC group. In the CC group, 3 patients underwent surgery, and 2 patients were treated conservatively. One patient died of cardiac causes after uncomplicated cholecystectomy. In the ACC group, 7 patients were treated medically and 6 patients underwent surgery. The overall mortality was 23% (3 patients). All deaths occurred in patients treated surgically. CONCLUSIONS: Given the low incidence of CC, we do not recommend preoperative screening or intervention for cholelithiasis. Treatment should be according to established guidelines. Patients with ACC, without overt peritonitis, should initially be treated conservatively with appropriate antibiotics. However, failure of significant improvement within 48 hours or a worsening clinical picture should lead to surgical intervention.

Factors effecting the complications in the natural history of acute cholecystitis. Hepatogastroenterology. 2001 Sep-Oct;48(41):1275-8.

BACKGROUND/AIMS: Gangrenous cholecystitis, empyema, gallbladder perforation, and biliary peritonitis are severe complications of acute cholecystitis associated with increased morbidity and mortality. This study aimed to evaluate perioperative factors associated with complications of acute cholecystitis. METHODOLOGY: Between January 1993 and October 2000, we performed cholecystectomy in 368 patients with acute cholecystitis. All perioperative data were collected on age, sex, medical history, symptoms, laboratory tests, ultrasound, operative and microbiological findings, morbidity and mortality. RESULTS: There were 305 cases (83%) of acute uncomplicated cholecystitis, 26 (7.1%) of gangrenous cholecystitis, 23 (6.3%) of empyema of the gallbladder, 12 (3.3%) of gallblader perforation, and 2 (0.5%) emphysematous cholecystitis. Risk factors for complicated cholecystitis included male gender, advanced age, associated diseases, temperature above 38 degrees C, and white blood cell count on admission greater than 18,000. Laparoscopic cholecystectomy was attempted on 36 patients (11.8%) with uncomplicated and seven patients (11.1%) with complicated acute cholecystitis. The conversion rate to open cholecystectomy was 19.4% for uncomplicated cases, 28.6% for complicated cases. There were no differences in operative complications between complicated and uncomplicated cases, however, length of hospital stay, postoperative morbidity and mortality were significantly higher in complicated cases. CONCLUSIONS: Sex (male), advanced age, presence of associated disease, high temperature (> 38 degrees C) and leukocytosis are all remarkable risk factors inducing complications in acute cholecystitis. Laparoscopic cholecystectomy can be performed with success in uncomplicated cases.

Acute cholecystitis: an evaluation of the factors that determine the start of surgical treatment.Rev Esp Enferm Dig. 1993 Jan;83(1):26-31.

The authors studied 100 acute cholecystitis treated between 1984 and 1990. In 71.4% of the cases it was associated with gallstones and 28.6% were primary acalculous cholecystitis. Two percent were postoperative. 77 patients underwent surgery. 14.3% needed an emergency operation due to acute abdominal syndrome and sepsis. In the remaining patients, the surgical procedure was performed days or weeks later according to the course of the disease, the surgeons criteria, and family and social-labour conditions. Based on these criteria, 31.7% had surgery during the first week, 23.8% in the second and 44.5% in the third or later. Cholecystectomy was the surgical procedure performed in 98.7% of the cases. Morbidity rate was 11.6% and mortality 3.9%. Analysis of morpho-clinical grades has been done in relation with the type of cholecystitis, the clinical symptoms and the course of the disease. Finally the different factors used to argue for an early or delayed surgical treatment are discussed.

Acute cholecystitis in the intensive care unit. New Horiz. 1993;1(2):246-60.

The development of acute cholecystitis in the ICU is now a well-recognized complication of many acute illnesses that precipitate ICU admission and may also result as a complication of the subsequent treatment. The etiology of the disease remains obscure and, unlike acute cholecystitis outside the ICU setting, most cases are acalculous and not associated with gallstones. The disease may often go unrecognized due to the complexity of the patient's medical and surgical problems. Clinical examination is often unhelpful, as many patients are receiving mechanical ventilation and have decreased mental awareness. Biochemical markers are nonspecific and contribute to the delay in diagnosis and treatment. Early diagnosis is essential to avoid the high rates of associated morbidity and mortality. The diagnosis is usually made by radiologic tests, most often by sonographic examination of the gallbladder, which can be performed at the bedside. However, radiologic findings may also be nonspecific. The treatment involves gallbladder drainage by percutaneous cholecystostomy, which is usually curative in acalculous cholecystitis. Interval cholecystectomy is indicated for the remaining patients with gallstone-associated cholecystitis.

 

January 2008 
Surgical-Pathology.com

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Acute cholecystitis in a traumatologic patient sample.Aktuelle Traumatol. 1993 Feb;23(1):32-5.

Among the patients of the Accident Hospital of the Co-operative Trade Association Tübingen, there were 11 cases of acute cholecystitis between 1985 and 1991. Acute cholecystitis occurred after polytrauma (n = 5), multiple fractures (n = 2), head injury (n = 1), fracture of femoral neck (n = 1) or elective hip surgery (arthrodesis, total hip replacement) (n = 2). The mean age was 57 (16-89) years, acute cholecystitis was confirmed 27 (6-54) days after trauma of surgery. 7 cases presented as acute acalculous cholecystitis, whereas in 4 cases of acute cholecystitis cholecystolithiasis was present. 9 patients were treated via cholecystectomy; one juvenile paraplegic recovered after conservative treatment, one 82-year old female was in too bad condition for surgery so that percutaneous cholecystostomy had to be performed prior to cholecystectomy. 10 patients recovered without complication, one 89-year old multi-morbid male died after cholecystectomy. Analysis of the clinical course prior to the occurrence of acute cholecystitis showed a high incidence of shock, frequent blood transfusion, long-time respiratory therapy and parenteral nutrition as well severe trauma, and high cumulation of opiate therapy in this group of patients. Diagnosis was confirmed by ultrasound in all patients, clinical symptoms and laboratory data being mostly unspecific.

Acute cholecystitis.Surg Clin North Am. 1988 Apr;68(2):269-79.

Acute cholecystitis is a common cause of the acute abdomen. The diagnosis has been distinctly improved with the development of ultrasonography and hepatobiliary scanning over the past 20 years. The treatment is cholecystectomy, with early as opposed to delayed operation gaining increasing popularity nationwide. Acute acalculous cholecystitis and emphysematous cholecystitis are special features of acute cholecystitis occurring in more complicated cases and requiring diligence in diagnosis and great care in treatment.