Computed Tomography Versus Acute Physiology and Chronic Health Evaluation II Score in Predicting Severity of Acute Pancreatitis
ABSTRACT The aim of the study was to compare Acute Physiology and Chronic Health Evaluation II score and C-reactive protein as a clinical index and computed tomography-based severity index (CTSI) in predicting the course of acute pancreatitis.
One hundred forty-eight patients with acute pancreatitis were enrolled in the study during a 2-year period. All data concerning etiology, Atlanta classification, CT findings, Acute Physiology and Chronic Health Evaluation score, C-reactive protein levels, stay in the intensive care unit, length of hospital stay, treatment, complications, and deaths were analyzed with Mann-Whitney U, Wilcoxon, Pearson, and Spearman statistical tests. The CT was performed on a spiral unit after intravenous administration of contrast material. Images were graded according to the Balthazar-CTSI scoring system.
A very good correlation was noticed between Balthazar-CTSI scores and local complications, whereas no statistically significant correlation was found between CT scores and stay in the intensive care unit. Among survivors and nonsurvivors, there were no statistically significant differences as far as CT scores were concerned.
Although the extent of necrosis as defined on contrast-enhanced CT examinations is considered as a risk factor for a negative prognosis, our findings suggest that the initially documented disease severity according only to imaging parameters is not highly important for the final patient outcome.
- SourceAvailable from: ac.kr
Conference Paper: Multiple description EZW coding using overlapped threshold[Show abstract] [Hide abstract]
ABSTRACT: We propose an efficient multiple description coder using a newly modified embedded zerotree wavelet (EZW) coding method. We use an expanded threshold and two subordinate passes. We then present a multiple description encoder with two channels using an overlapped threshold. To evaluate the performance of our proposed encoder, we apply our method to image compression.Signal Processing, 2002 6th International Conference on; 09/2002
- [Show abstract] [Hide abstract]
ABSTRACT: Patients with acute pancreatitis may present with mild or severe disease, the latter comprising a minority of cases but accounting for most of the morbidity and mortality associated with this disease. Contrast-enhanced computed tomography is the mainstay of imaging patients with acute pancreatitis and is widely used in both the community and academic settings. A variety of retroperitoneal morphologic changes are readily depicted, and the correct assessment of these abnormalities is imperative for management. The purpose of this review is to describe the imaging evaluation of patients with acute pancreatitis by using the 1992 Atlanta Symposium classification and definitions to describe local complications depicted on contrast-enhanced computed tomography. Correlation with the proposed revision of Atlanta Symposium definitions set forth by the Acute Pancreatitis Working Group will be discussed.Clinical gastroenterology and hepatology: the official clinical practice journal of the American Gastroenterological Association 11/2008; 6(10):1077-85. DOI:10.1016/j.cgh.2008.07.012 · 6.53 Impact Factor
- [Show abstract] [Hide abstract]
ABSTRACT: Acute pancreatitis is a dynamic, often progressive disease; 14-20% require intensive care in its severe form due to multiorgan dysfunction and/or failure. This review was created using systematic literature review of articles published on this subject in the last 5 years. The outcome of severe acute pancreatitis is determined by the inflammatory response and multiorgan dysfunction - the prognostic scores (Acute Physiology and Chronic Health Evaluation, Glasgow Prognostic Index, Sepsis-related Organ Failure Assessment, Multi Organ Dysfunction Syndrome Scale, Ranson Scale) can be used to determine outcome. Clinical signs (age, coexisting diseases, confusion, obesity) and biochemistry values (serum amylase, lipase, C-reactive protein, procalcitonin, creatinine, urea, calcium) have important prognostic roles as well. Early organ failure increases the risk of late abdominal complications and mortality. Intensive care can provide appropriate multi-function patient monitoring which helps in early recognition of complications and appropriate target-controlled treatment. Treatment of severe acute pancreatitis aims at reducing systemic inflammatory response and multiorgan dysfunction and, on the other side, at increasing the anti-inflammatory response. Oral starvation for 24-48 hours is effective in reducing the exocrine activity of the pancreas; the efficacy of protease inhibitors is questionable. Early intravascular volume resuscitation and stable haemodynamics improve microcirculation. Early oxygen therapy and mechanical ventilation provide adequate oxygenation. Electrolyte and acid-base control can be as important as tight glucose control. Adequate pain relief can be achieved by thoracic epidural catheterization. Early enteral nutrition with immunonutrition should be used. There is evidence that affecting the coagulation cascade by activated protein C can play a role in reducing the inflammatory response. The complex therapy of acute pancreatitis includes appropriate antibiotics, thrombo-embolic prophylaxis and in certain cases plasmapheresis and/or haemofiltration. Reducing intraabdominal pressure may be necessary in the acute phase. Intensive care multidisciplinary teamwork can reduce the mortality of severe acute pancreatitis from 30% to 10%.Orvosi Hetilap 12/2008; 149(47):2211-20. DOI:10.1556/OH.2008.28482