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World Journal of Gastroenterology Aug 2012Our aim was to record pancreaticobiliary endoscopic ultrasound (EUS) literature of the past 3 decades and evaluate its role based on a critical appraisal of published... (Review)
Review
Our aim was to record pancreaticobiliary endoscopic ultrasound (EUS) literature of the past 3 decades and evaluate its role based on a critical appraisal of published studies according to levels of evidence (LE). Original research articles (randomized controlled trials, prospective and retrospective studies), meta-analyses, reviews and surveys pertinent to gastrointestinal EUS were included. All articles published until September 2011 were retrieved from PubMed and classified according to specific disease entities, anatomical subdivisions and therapeutic applications of EUS. The North of England evidence-based guidelines were used to determine LE. A total of 1089 pertinent articles were reviewed. Published research focused primarily on solid pancreatic neoplasms, followed by disorders of the extrahepatic biliary tree, pancreatic cystic lesions, therapeutic-interventional EUS, chronic and acute pancreatitis. A uniform observation in all six categories of articles was the predominance of LE III studies followed by LE IV, II b, II a, I b and I a, in descending order. EUS remains the most accurate method for detecting small (< 3 cm) pancreatic tumors, ampullary neoplasms and small (< 4 mm) bile duct stones, and the best test to define vascular invasion in pancreatic and peri-ampullary neoplasms. Detailed EUS imaging, along with biochemical and molecular cyst fluid analysis, improve the differentiation of pancreatic cysts and help predict their malignant potential. Early diagnosis of chronic pancreatitis appears feasible and reliable. Novel imaging techniques (contrast-enhanced EUS, elastography) seem promising for the evaluation of pancreatic cancer and autoimmune pancreatitis. Therapeutic applications currently involve pancreaticobiliary drainage and targeted fine needle injection-guided antitumor therapy. Despite the ongoing development of extra-corporeal imaging modalities, such as computed tomography, magnetic resonance imaging, and positron emission tomography, EUS still holds a leading role in the investigation of the pancreaticobiliary area. The major challenge of EUS evolution is its expanding therapeutic potential towards an effective and minimally invasive management of complex pancreaticobiliary disorders.
Topics: Bile Duct Diseases; Biliary Tract; Endosonography; Humans; Outcome Assessment, Health Care; Pancreas; Pancreatic Cyst; Pancreatic Neoplasms; Pancreatitis; Sensitivity and Specificity
PubMed: 22969187
DOI: 10.3748/wjg.v18.i32.4243 -
BMC Emergency Medicine Aug 2012Rupture of the spleen in the absence of trauma or previously diagnosed disease is largely ignored in the emergency literature and is often not documented as such in... (Review)
Review
BACKGROUND
Rupture of the spleen in the absence of trauma or previously diagnosed disease is largely ignored in the emergency literature and is often not documented as such in journals from other fields. We have conducted a systematic review of the literature to highlight the surprisingly frequent occurrence of this phenomenon and to document the diversity of diseases that can present in this fashion.
METHODS
Systematic review of English and French language publications catalogued in Pubmed, Embase and CINAHL between 1950 and 2011.
RESULTS
We found 613 cases of splenic rupture meeting the criteria above, 327 of which occurred as the presenting complaint of an underlying disease and 112 of which occurred following a medical procedure. Rupture appeared to occur spontaneously in histologically normal (but not necessarily normal size) spleens in 35 cases and after minor trauma in 23 cases. Medications were implicated in 47 cases, a splenic or adjacent anatomical abnormality in 31 cases and pregnancy or its complications in 38 cases. The most common associated diseases were infectious (n = 143), haematologic (n = 84) and non-haematologic neoplasms (n = 48). Amyloidosis (n = 24), internal trauma such as cough or vomiting (n = 17) and rheumatologic diseases (n = 10) are less frequently reported. Colonoscopy (n = 87) was the procedure reported most frequently as a cause of rupture. The anatomic abnormalities associated with rupture include splenic cysts (n = 6), infarction (n = 6) and hamartomata (n = 5). Medications associated with rupture include anticoagulants (n = 21), thrombolytics (n = 13) and recombinant G-CSF (n = 10). Other causes or associations reported very infrequently include other endoscopy, pulmonary, cardiac or abdominal surgery, hysterectomy, peliosis, empyema, remote pancreato-renal transplant, thrombosed splenic vein, hemangiomata, pancreatic pseudocysts, splenic artery aneurysm, cholesterol embolism, splenic granuloma, congenital diaphragmatic hernia, rib exostosis, pancreatitis, Gaucher's disease, Wilson's disease, pheochromocytoma, afibrinogenemia and ruptured ectopic pregnancy.
CONCLUSIONS
Emergency physicians should be attuned to the fact that rupture of the spleen can occur in the absence of major trauma or previously diagnosed splenic disease. The occurrence of such a rupture is likely to be the manifesting complaint of an underlying disease. Furthermore, colonoscopy should be more widely documented as a cause of splenic rupture.
Topics: Databases, Bibliographic; Diagnosis, Differential; Emergency Medical Services; Humans; Rupture, Spontaneous; Splenic Rupture
PubMed: 22889306
DOI: 10.1186/1471-227X-12-11 -
World Journal of Gastroenterology Jul 2011To determine whether the outcomes of laparoscopic fenestration (LF) were superior to open fenestration (OF) for congenital liver cysts. (Meta-Analysis)
Meta-Analysis
AIM
To determine whether the outcomes of laparoscopic fenestration (LF) were superior to open fenestration (OF) for congenital liver cysts.
METHODS
Comparative studies published between January 1991 and May 2010 on Medline (Ovid), Emsco, PubMed, Science Direct; Cochrane Reviews; CNKI; Chinese Biomedical Database, VIP and other electronic databases were searched. Randomized controlled trials (RCTs) and retrospective case-control studies on the management of congenital hepatic cysts were collected according to the pre-determined eligibility criteria to establish a literature database. Retrieval was ended in May 2010. Meta-analysis was performed using RevMan 5.0 software (Cochrane library).
RESULTS
Nine retrospective case-control studies involving 657 patients, comparing LF with OF were included for the final pooled analysis. The meta-analysis results showed less operative time [mean difference (MD): -28.76, 95% CI: -31.03 to 26.49, P < 0.00001]; shorter hospital stay (MD: -3.35, 95% CI: -4.46 to -2.24, P < 0.00001); less intraoperative blood loss (MD: -40.18, 95% CI: -52.54 to -27.82, P < 0.00001); earlier return to regular diet (MD: -29.19, 95% CI: -30.65 to -27.72, P < 0.00001) and activities after operation (MD: -21.85, 95% CI: -31.18 to -12.51, P < 0.0001) in LF group; there was no significant difference between the two groups in postoperative complications (odds ratio: 0.99, 95% CI: 0.41 to 2.38, P = 0.98) and cysts recurrence rates.
CONCLUSION
The short-term outcomes of LF for patients with congenital hepatic cysts were superior to open approach, but its long-term outcomes should be verified by further RCTs and extended follow-up.
Topics: Adult; Aged; Aged, 80 and over; Cysts; Databases, Factual; Female; Humans; Laparoscopy; Liver; Male; Middle Aged; Randomized Controlled Trials as Topic; Young Adult
PubMed: 21876626
DOI: 10.3748/wjg.v17.i28.3359 -
World Journal of Gastroenterology Dec 2010The purpose of this study was to investigate the actual management of mucinous cystic neoplasm (MCN) of the pancreas. A systematic review was performed in December 2009... (Review)
Review
The purpose of this study was to investigate the actual management of mucinous cystic neoplasm (MCN) of the pancreas. A systematic review was performed in December 2009 by consulting PubMed MEDLINE for publications and matching the key words "pancreatic mucinous cystic neoplasm", "pancreatic mucinous cystic tumour", "pancreatic mucinous cystic mass", "pancreatic cyst", and "pancreatic cystic neoplasm" to identify English language articles describing the diagnosis and treatment of the mucinous cystic neoplasm of the pancreas. In total, 16 322 references ranging from January 1969 to December 2009 were analysed and 77 articles were identified. No articles published before 1996 were selected because MCNs were not previously considered to be a completely autonomous disease. Definition, epidemiology, anatomopathological findings, clinical presentation, preoperative evaluation, treatment and prognosis were reviewed. MCNs are pancreatic mucin-producing cysts with a distinctive ovarian-type stroma localized in the body-tail of the gland and occurring in middle-aged females. The majority of MCNs are slow growing and asymptomatic. The prevalence of invasive carcinoma varies between 6% and 55%. Preoperative diagnosis depends on a combination of clinical features, tumor markers, computed tomography (CT), magnetic resonance imaging, endoscopic ultrasound with cyst fluid analysis, and positron emission tomography-CT. Surgery is indicated for all MCNs.
Topics: Antineoplastic Agents; Female; Humans; Laparoscopy; Male; Middle Aged; Neoplasm Invasiveness; Neoplasm Staging; Neoplasms, Cystic, Mucinous, and Serous; Pancreatectomy; Pancreatic Neoplasms; Predictive Value of Tests; Time Factors; Treatment Outcome
PubMed: 21128317
DOI: 10.3748/wjg.v16.i45.5682 -
Digestive Diseases and Sciences Oct 2010Preoperative diagnosis of malignancy in pancreatic cystic lesions (PCLs) remains challenging. Most non-mucinous cystic lesions (NMCLs) are benign, but mucinous cystic... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Preoperative diagnosis of malignancy in pancreatic cystic lesions (PCLs) remains challenging. Most non-mucinous cystic lesions (NMCLs) are benign, but mucinous cystic lesions (MCLs) are more likely to be premalignant or malignant.
AIM
The aim of this study was to assess the sensitivity, specificity, and positive and negative likelihood ratios (LRs) of EUS-FNA-based cytology in differentiating MCLs from non-mucinous PCLs.
METHODS
We conducted a comprehensive search of MEDLINE, SCOPUS, Cochrane, and "CINAHL Plus" databases to identify studies, in which the results of EUS-FNA-based cytology of PCLs were compared with those of surgical biopsy or surgical excision histopathology. A DerSimonian-Laird random effect model was used to estimate the pooled sensitivity, specificity, and LRs, and a summary receiver-operating characteristic (SROC) curve was constructed.
RESULTS
We included 376 patients from 11 distinct studies who underwent EUS-FNA-based cytology and also had histopathological diagnosis. The pooled sensitivity and specificity in diagnosing MCLs were 0.63 (95% CI, 0.56-0.70) and 0.88 (95% CI, 0.83-0.93), respectively. The positive and negative LRs in diagnosing MCLs were 4.46 (95% CI, 1.21-16.43) and 0.46 (95% CI, 0.25-0.86), respectively. The area under the curve (AUC) was 0.89.
CONCLUSIONS
EUS-FNA-based cytology has overall low sensitivity but good specificity in differentiating MCLs from NMCLs. Further research is required to improve the overall sensitivity of EUS-FNA-based cytology to diagnose MCLs while evaluating PCL.
Topics: Adenocarcinoma, Mucinous; Biopsy, Fine-Needle; Endosonography; Humans; Pancreatic Cyst; Pancreatic Neoplasms; Precancerous Conditions
PubMed: 20694512
DOI: 10.1007/s10620-010-1361-8 -
NIH Consensus and State-of-the-science...To provide health care providers, patients, and the general public with a responsible assessment of currently available data regarding the use of endoscopic retrograde... (Review)
Review
OBJECTIVE
To provide health care providers, patients, and the general public with a responsible assessment of currently available data regarding the use of endoscopic retrograde cholangiopancreatography (ERCP) for diagnosis and therapy.
PARTICIPANTS
A non-Federal, non-advocate, 13-member panel representing the fields of gastroenterology, hepatology, clinical epidemiology, oncology, biostatistics, surgery, health services research, radiology, internal medicine, and the public. In addition, experts in these same fields presented data to the panel and to a conference audience of approximately 300.
EVIDENCE
Presentations by experts; a systematic review of the medical literature provided by the Agency for Healthcare Research and Quality; and an extensive bibliography of ERCP research papers, prepared by the National Library of Medicine. Scientific evidence was given precedence over clinical anecdotal experience.
CONFERENCE PROCESS
Answering predefined questions, the panel drafted a statement based on the scientific evidence presented in open forum and the scientific literature. The draft statement was read in its entirety on the final day of the conference and circulated to the experts and the audience for comment. The panel then met in executive session to consider these comments and released a revised statement at the end of the conference. The statement was made available on the World Wide Web at http://consensus.nih.gov immediately after the conference. This statement is an independent report of the panel and is not a policy statement of the NIH or the Federal Government.
CONCLUSIONS
In the diagnosis of choledocholithiasis, magnetic resonance cholangiopancreatography (MRCP), endoscopic ultrasound (EUS), and ERCP have comparable sensitivity and specificity. Patients undergoing cholecystectomy do not require ERCP preoperatively if there is low probability of having choledocholithiasis. Laparoscopic common bile duct exploration and postoperative ERCP are both safe and reliable in clearing common bile duct stones. ERCP with endoscopic sphincterotomy (ES) and stone removal is a valuable therapeutic modality in choledocholithiasis with jaundice, dilated common bile duct, acute pancreatitis, or cholangitis. In patients with pancreatic or biliary cancer, the principal advantage of ERCP is palliation of biliary obstruction when surgery is not elected. In patients who have pancreatic or biliary cancer and who are surgical candidates, there is no established role for preoperative biliary drainage by ERCP. Tissue sampling for patients with pancreatic or biliary cancer not undergoing surgery may be achieved by ERCP, but this is not always diagnostic. ERCP is the best means to diagnose ampullary cancers. ERCP has no role in the diagnosis of acute pancreatitis except when biliary pancreatitis is suspected. In patients with severe biliary pancreatitis, early intervention with ERCP reduces morbidity and mortality compared with delayed ERCP. ERCP with appropriate therapy is beneficial in selected patients who have either recurrent pancreatitis or pancreatic pseudocysts. Patients with type I sphincter of Oddi dysfunction (SOD) respond to endoscopic sphincterotomy (ES). Patients with type II SOD should not undergo diagnostic ERCP alone. If sphincter of Oddi manometer pressures are >40 mmHg, ES is beneficial in some patients. Avoidance of unnecessary ERCP is the best way to reduce the number of complications. ERCP should be avoided if there is a low likelihood of biliary stone or stricture, especially in women with recurrent pain, a normal bilirubin, and no other objective sign of biliary disease. Endoscopists performing ERCP should have appropriate training and expertise before performing advanced procedures. With newer diagnostic imaging technologies emerging, ERCP is evolving into a predominantly therapeutic procedure.
Topics: Acute Disease; Biliary Tract Neoplasms; Cholangiography; Cholangiopancreatography, Endoscopic Retrograde; Choledocholithiasis; Chronic Disease; Combined Modality Therapy; Common Bile Duct Diseases; Drainage; Endosonography; Evidence-Based Medicine; Humans; Jaundice; Magnetic Resonance Imaging; Palliative Care; Pancreatic Neoplasms; Pancreatic Pseudocyst; Pancreatitis; Patient Selection; Preoperative Care; Recurrence; Sensitivity and Specificity; Sphincterotomy, Endoscopic; Treatment Outcome; United States
PubMed: 14768653
DOI: No ID Found