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September-October 2012
Volume 18 | Issue 5
Page Nos. 293-346
Online since Tuesday, September 18, 2012
Accessed 62,746 times.
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SPECIAL COMMUNICATION - PRACTICE GUIDELINES
SASLT practice guidelines for the management of hepatitis C virus infection: Summary of recommendations
p. 293
Abdullah S Alghamdi, Faisal M Sanai, Mona Ismail, Hamdan Alghamdi, Khalid Alswat, Adel Alqutub, Ibrahim Altraif, Hemant Shah, Faleh Z Alfaleh
DOI
:10.4103/1319-3767.101121
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EDITORIAL
Prediction of minimal hepatic encephalopathy
p. 299
Sangheun Lee, Jun Yong Park
DOI
:10.4103/1319-3767.101122
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REVIEW ARTICLE
Hepatic encephalopathy
p. 301
Wissam Bleibel, Abdullah M. S. Al-Osaimi
DOI
:10.4103/1319-3767.101123
Chronic liver disease and cirrhosis affect hundreds of millions of patients all over the world. The majority of patients with cirrhosis will eventually develop complications related to portal hypertension. One of these recurrent and difficult to treat complications is hepatic encephalopathy. Studies have indicated that overt hepatic encephalopathy affects 30 to 45% of patients with cirrhosis and a higher percentage may be affected by minimal degree of encephalopathy. All of these factors add to the impact of hepatic encephalopathy on the healthcare system and presents a major challenge to the gastroenterologist, hospitalist and primary care physician.
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SYSTEMATIC REVIEW
Systematic review of diet in the pathogenesis of acute pancreatitis: A tale of too much or too little?
p. 310
Tudor Thomas, Latifa Mah, Savio G Barreto
DOI
:10.4103/1319-3767.101124
Background/Aim:
The role of diet as the cause of acute pancreatitis (AP) has been suggested. The aim of the current review was to determine if there exists sufficient evidence linking nutrition, or the lack of it, to the pathogenesis of AP.
Patients and Methods:
A systematic search of the scientific literature was carried out using Embase, PubMed, MEDLINE, and the Cochrane Central Register of Controlled Trials for the years 1965 - 2011 to obtain access to studies involving dietary factors and the pathogenesis of AP.
Results:
A total of 17 studies were identified describing diet and AP. These included 12 human and 5 animal studies. 8 reports were found to link malnutrition and/or refeeding to the pathogenesis of AP. Two studies found an increased consumption of fats and proteins in patients with alcohol-related AP while 1 study noted a lesser intake of carbohydrate in patients. However, none of these differences attained statistical significance. A recent prospective case-control study found a significantly higher risk for AP amongst patients eating par-boiled rice and fresh water fish.
Conclusions:
Evidence from literature does not appear to support the role of diet as a single bolus meal as a cause for AP. Prolonged consumption of diets rich in proteins and fats may work synergistically with gallstones / alcohol to trigger an attack of AP indicating a possible role of diet as a cofactor in the development of AP possibly by lowering the threshold needed by these other agents to lead to the attack of AP.
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ORIGINAL ARTICLES
Minimal hepatic encephalopathy in patients with cirrhosis by measuring liver stiffness and hepatic venous pressure gradient
p. 316
Praveen Sharma, Ashish Kumar
DOI
:10.4103/1319-3767.101126
Background/Aim
: Transient elastography (TE) of liver and hepatic venous pressure gradient (HVPG) allows accurate prediction of cirrhosis and its complications in patients with chronic liver disease. There is no study on prediction of minimal hepatic encephalopathy (MHE) using TE and HVPG in patients with cirrhosis.
Patients and Methods
: Consecutive cirrhotic patients who never had an episode of hepatic encephalopathy (HE) were enrolled. All patients were assessed by psychometry (number connection test (NCT-A and B), digit symbol test (DST), serial dot test (SDT), line tracing test (LTT)), critical flicker frequency test (CFF), TE by FibroScan and HVPG. MHE was diagnosed if there were two or more abnormal psychometry tests (± 2 SD controls).
Results:
150 patients with cirrhosis who underwent HVPG were screened; 91 patients (61%, age 44.0 ± 11.4 years, M:F:75:16, Child's A:B:C 18:54:19) met the inclusion criteria. Fifty three (58%) patients had MHE (Child A (7/18, 39%), Child B (32/54, 59%) and Child C (14/19, 74%)). There was no significant difference between alanine aminotranferease (ALT), aspartate aminotransferase (AST) and total bilirubin level in patients with MHE versus non MHE. Patients with MHE had significantly lower CFF than non MHE patients (38.4 ± 3.0 vs. 40.2 ± 2.2 Hz,
P
= 0.002). TE and HVPG in patients with MHE did not significantly differ from patients with no MHE (30.9 ± 17.2 vs. 29.8 ± 18.2 KPas,
P
= 0.78; and 13.6 ± 2.7 vs. 13.6 ± 3.2 mmHg,
P
= 0.90, respectively).There was significant correlation of TE with Child's score (0.25,
P
= 0.01), MELD (0.40,
P
= 0.001) and HVPG (0.72,
P
= 0.001) while no correlation with psychometric tests, CFF and MHE.
Conclusion
: TE by FibroScan and HVPG cannot predict minimal hepatic encephalopathy in patients with cirrhosis.
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Analysis of colonic mucosa mast cell count in patients with chronic diarrhea
p. 322
Ali Zare-Mirzaie, Maryam Lotfi, Alireza Sadeghipour, Mohammad-Taghi Haghi-Ashtiani
DOI
:10.4103/1319-3767.101128
Background/Aim:
Chronic diarrhea is defined as a decrease in fecal consistency lasting for four or more weeks. Prevalence of this complication in the general population is 5%. Mast cells that play an important role in the regulation of gastrointestinal visceral sensitivity and vascular permeability may be involved in functional chronic diarrhea. In this study we tried to evaluate mast cells density in colonic mucosa of patients with chronic diarrhea.
Patients and Methods:
50 patients with chronic diarrhea and 50 persons as control group were investigated. All specimens were immunohistochemically stained for mast cell tryptase (MCT) with monoclonal mouse anti-human MCT as well as toluidine blue. Mean number of mucosal mast cells were counted in 10 high power microscopic fields of patients and control groups.
Results:
In patients group (age range, 15-78 years; 26 females), the number of mast cells per high power field in the immunohistochemistry staining was 21.3 ± 4.8 compared to 14.2 ± 3.4 in the control group (age range, 18-78 years; 24 females) [
P
< 0.001]. Also number of mast cells in toluidine blue staining was 10.3 ± 3.6 per high power field in cases and 7.1 ± 2.4 in the control group (
P
< 0.001).
Conclusion:
Elevated number of colonic mast cells exist in patients with chronic diarrhea. Further research should be considered on application of these findings for new therapeutic opportunities.
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Serum TGF-β, Serum MMP-1, and HOMA-IR as non-invasive predictors of fibrosis in Egyptian patients with NAFLD
p. 327
Adel A Mahmoud, Amal S Bakir, Sherif S Shabana
DOI
:10.4103/1319-3767.101132
Background/Aim:
Non-alcoholic fatty liver disease (NAFLD) is an increasingly prevalent cause of chronic liver disease worldwide. A number of these patients progress to nonalcoholic steatohepatitis (NASH) which carries significant morbidity and mortality. The aim of this study is to evaluate the diagnostic value of serum levels of transforming growth factor beta-1 (TGF-β1) matrix metalloproteinase-1 (MMP-1), and insulin resistance as predictors of fibrosis in Egyptian NAFLD patients.
Patients and Methods:
Fifty patients with NAFLD and different stages of fibrosis were studied. Serum levels of TGF-β1, MMP-1, and fasting serum insulin were measured; calculation of the homeostasis model assessment for insulin resistance (HOMA-IR) was done.
Results:
TGF-β1 gives a sensitivity of 100% and specificity of 94.4% for stage 1 fibrosis, 100% and 93.9%, respectively, for stage 2 fibrosis, and 97.7% and 100%, respectively, for stage 3 fibrosis. MMP-1 showed sensitivity and specificity of 88% and 81.8%, respectively, for stage 2 fibrosis, 90.9% and 55.56%, respectively, for stage 3 fibrosis, but it is of no diagnostic value in stage 1 fibrosis.
Conclusion:
Serum TGF-β1, MMP-1, and insulin resistance (HOMA-IR) proved to be potentially useful noninvasive markers in predicting fibrosis in NASH patients.
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Presentation, diagnosis and outcome of predominantly hepatic Wilson's disease in adult Saudi patients: A single centre experience
p. 334
Ibrahim Altraif, Fayaz A Handoo, Hamdan Al Ghamdi, Abdulrahman Aljumah, Mohammed Al Jumah, Mohammed Afzal
DOI
:10.4103/1319-3767.101135
Background/Aim:
To evaluate the clinical manifestations, diagnostic features, disease course and response to treatment among Saudi adults with predominantly hepatic Wilson's disease. A retrospective cohort study of 40 adult patients diagnosed with predominantly hepatic Wilson's disease between 1994 and 2008 at King Abdulaziz Medical City, Riyadh was carried out.
Patients and Methods:
The diagnosis was based on varying combinations of clinical and laboratory evidence of liver disease, presence of Kayser Fleisher rings, low serum ceruloplasmin levels, elevated 24 hour urinary copper excretion and histopathological findings on liver biopsy.
Results:
The most frequent clinical presentation was decompensated chronic liver disease in 19 (47.5%), followed by chronic hepatitis in 15 (37.5%) and fulminant hepatic failure (FHF) in 5 (12.5%) patients. Eight (20%) patients with end-stage liver disease had liver transplantation, while 24 (60%) patients followed up on medical treatment for a variable period of 1-12 years showed clinical and laboratory improvement. One patient was lost early in follow up. Eight (20%) patients died during the study period, 5 with FHF, and 2 with advanced hepatic and neurological disease and one seven years after liver transplantation. Mortality rate was 100% in FHF without liver transplantation.
Conclusion:
A predominantly hepatic Wilson's disease has varied clinical presentations with decompensated chronic liver disease being the most common among adult patients. Majority of the patients show stabilization of the disease on medical treatment. FHF in Wilson's disease has a grave prognosis without liver transplantation, the later remains a definitive treatment option for decompensated cirrhotics and patients with FHF.
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CASE REPORTS
Isolated cortisol deficiency: A rare cause of neonatal cholestasis
p. 339
Abdulrahman Al-Hussaini, Awatif Almutairi, Alaaddin Mursi, Mohammed Alghofely, Ali Asery
DOI
:10.4103/1319-3767.101137
For decades, congenital panhypopituitarism has been recognized to cause infantile cholestasis. However, the identity of the hormone whose deficiency causes such derangement of the liver is not clear. Here, we report four cases of isolated severe cortisol deficiency presenting with neonatal cholestasis and hypoglycemia, of whom two had familial primary glucocorticoid deficiency and the other two had isolated adrenocorticotropin deficiency. The resolution of cholestasis by hydrocortisone replacement therapy suggests a causal relationship between cortisol deficiency and the development of neonatal cholestasis. In conclusion, the presentation of a young infant with cholestasis and hypoglycemia should alert pediatricians to the possibility of cortisol deficiency and prompt investigation of adrenal function should be undertaken.
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Ruptured ileocolic artery aneurysm: An unusual cause of hemoperitoneum
p. 342
Zakaur R Siddiqui, Omer F Yousif, Mark W Halliday, Nasser A Hubaishah, Khalid A Adam
DOI
:10.4103/1319-3767.101141
Ruptured aneurysm of a branch of ileocolic artery is a rare finding and is an unusual cause of haemoperitoneum. Rapid diagnosis, and surgical or endovascular intervention are necessary to avoid devastating consequences and high mortality rates following an emergency operation after rupture. Resection is a good choice for surgical intervention for some aneurysms that are not suitable for endovascular repair. This report describes the case of a middle-aged man with a ruptured superior mesenteric artery branch aneurysm and his subsequent surgical management.
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IMAGE QUIZ
Umbilical nodule in cholangiocarcinoma
p. 345
Vivek Agrawal, Pankaj K Garg, Debajyoti Mohanty, Vivek Jaswal
DOI
:10.4103/1319-3767.101143
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© Saudi Journal of Gastroenterology (Official journal of The Saudi Gastroenterology Association) | Published by Wolters Kluwer -
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