Gastrointestinal Surgery (all articles)
ACG Guideline: Management of Acute Pancreatitis
20 Mar, 2024 | 21:49h | UTCThis guideline, crafted by the American College of Gastroenterology, provides essential strategies for managing acute pancreatitis, offering a concise overview of diagnosis, treatment, and prevention recommendations for healthcare professionals. Here is a summary of the key information contained in the document:
- Introduction and Epidemiology: Acute pancreatitis (AP) is one of the most common gastrointestinal diseases leading to hospitalization in the United States, with about 300,000 admissions annually and a cost of over 2.5 billion dollars. The incidence of AP has been increasing annually, although the mortality rate has remained stable due to advancements in management.
- Etiology and Diagnosis: AP is typically caused by gallstones and alcohol consumption. Diagnosis is made based on the presence of two of the following three criteria: characteristic abdominal pain, serum amylase and/or lipase levels more than three times the upper limit of normal, and/or characteristic findings on abdominal imaging.
- Initial Management and Hydration: Initial management emphasizes the importance of moderate to aggressive intravenous hydration, preferably with lactated Ringer’s solution over normal saline, due to its potential benefit in reducing systemic inflammation and preventing complications.
- Nutrition: Patients with mild AP are encouraged to start early oral feeding within 24 to 48 hours as tolerated, preferring a low-fat solid diet over a progressive approach from liquids to solids.
- Management of Complications: The document addresses the management of complications such as pancreatic necrosis, suggesting the use of antibiotics only in cases of infected necrosis and highlighting a preference for minimally invasive methods of debridement and necrosectomy.
- Prevention of Recurrence and Role of ERCP: To prevent recurrences in biliary pancreatitis, cholecystectomy is recommended. In selected cases of acute biliary pancreatitis without cholangitis, medical therapy is preferred over early ERCP.
- Use of Antibiotics: The guidelines discourage the prophylactic use of antibiotics in cases of severe AP without evidence of infection, due to the lack of demonstrated benefit and potential risks.
Tenner, S. et al (2024). American College of Gastroenterology Guidelines: Management of Acute Pancreatitis. The American Journal of Gastroenterology, 119(3), 419-437. https://doi.org/10.14309/ajg.0000000000002645
Clinical validation of a cell-free DNA test for colorectal cancer screening: sensitivity and specificity analysis
20 Mar, 2024 | 19:16h | UTCStudy Design and Population: This study conducted a clinical validation of a cell-free DNA (cfDNA) blood-based test to screen for colorectal cancer in a cohort of 10,258 individuals, 7,861 of whom met the eligibility criteria and were evaluable. The research aimed to assess the test’s performance by comparing its sensitivity for detecting colorectal cancer and its specificity for identifying advanced neoplasia (including colorectal cancer or advanced precancerous lesions) against the outcomes of screening colonoscopy, a standard procedure.
Main Findings: The cfDNA test demonstrated a sensitivity of 83.1% for detecting colorectal cancer, with stage-specific sensitivities of 87.5% for stages I-III cancers. However, its sensitivity for identifying advanced precancerous lesions was notably lower at 13.2%. On the specificity front, the test showed an 89.6% ability to correctly identify individuals without any advanced colorectal neoplasia and had an overall specificity of 89.9% for those with a negative colonoscopy result, indicating no presence of colorectal cancer, advanced precancerous lesions, or non-advanced precancerous lesions.
Implications for Practice: The cfDNA blood-based test presents a promising tool for colorectal cancer screening, boasting substantial sensitivity for colorectal cancer detection and high specificity for advanced neoplasia. Its non-invasive nature could potentially enhance screening adherence, facilitating earlier cancer detection and possibly reducing colorectal cancer-related mortality. However, the test’s low sensitivity for advanced precancerous lesions suggests a need for further research and development to improve early detection capabilities.
Reference: Chung, D.C. et al. A Cell-free DNA Blood-Based Test for Colorectal Cancer Screening. Journal Name, Volume(Issue), Pages. Access the study here: [Link]
RCT: Effectiveness of mechanical and oral antibiotic bowel preparation in reducing postoperative complications in elective rectal resection
20 Mar, 2024 | 18:18h | UTCStudy Design and Population
This double-blind, placebo-controlled randomized clinical trial was conducted at three university hospitals in Finland, involving 565 patients aged 18 years and older undergoing elective rectal resection with primary anastomosis for tumors 15 cm or less from the anal verge, as determined by magnetic resonance imaging. Participants were allocated in a 1:1 ratio to either the mechanical and oral antibiotic bowel preparation (MOABP) group, receiving neomycin and metronidazole orally, or to the mechanical bowel preparation (MBP) plus placebo group, with all interventions occurring the day before surgery alongside standard preoperative intravenous antibiotics.
Main Findings
The study found that patients in the MOABP group experienced significantly fewer postoperative complications, with a median Comprehensive Complication Index significantly lower than that of the MBP plus placebo group. Additionally, the MOABP group showed reduced rates of surgical site infections (SSIs) and anastomotic dehiscence compared to the control group, demonstrating a clear benefit in postoperative outcomes.
Implications for Practice
The results of this trial suggest that incorporating oral antibiotics with mechanical bowel preparation prior to elective rectal resection significantly reduces postoperative complications, including SSIs and anastomotic dehiscence. Therefore, MOABP should be adopted as the standard regimen for patients undergoing these procedures to improve postoperative outcomes and reduce the burden of complications. This evidence underscores the importance of updating surgical protocols to include this preparation strategy.
Reference
Laura Koskenvuo et al. (2024). Randomized Clinical Trial: Effectiveness of Mechanical and Oral Antibiotic Bowel Preparation in Reducing Postoperative Complications in Elective Rectal Resection. JAMA Surg, Published online March 20, 2024. DOI: 10.1001/jamasurg.2024.0184. Access the study here: [Link]
Prospective Study: Enhanced detection of colorectal cancer and precancerous lesions with next-generation stool DNA testing
20 Mar, 2024 | 17:41h | UTCStudy Design and Population:
This prospective study evaluated the efficacy of a next-generation multitarget stool DNA test for colorectal cancer screening in asymptomatic adults aged 40 and older. The study encompassed 20,176 participants undergoing screening colonoscopy to determine the test’s sensitivity and specificity in detecting colorectal cancer and advanced neoplasia, including advanced precancerous lesions.
Main Findings:
The next-generation stool DNA test demonstrated a sensitivity of 93.9% for detecting colorectal cancer and a specificity of 90.6% for advanced neoplasia, significantly outperforming the fecal immunochemical test (FIT) in sensitivity for both colorectal cancer and advanced precancerous lesions. However, the test showed slightly lower specificity for advanced neoplasia compared to FIT. No adverse events were reported, indicating the test’s safety for screening purposes.
Implications for Practice:
The findings suggest that the next-generation multitarget stool DNA test offers a superior option for colorectal cancer screening, with significantly higher sensitivity for detecting cancer and advanced precancerous lesions than the currently available FIT. This advance in non-invasive screening technology could lead to earlier detection and treatment of colorectal cancer, potentially improving patient outcomes. Further research may focus on optimizing the balance between sensitivity and specificity to enhance the clinical utility of stool DNA testing.
Reference:
Guideline | Closure of laparotomy in emergency settings
11 Aug, 2023 | 15:33h | UTC
Cohort Study | Moderate to heavy drinking linked to increased risk of early-onset colorectal cancer
9 Aug, 2023 | 15:27h | UTCCommentary: Association of Alcohol Intake With Risk of Early-Onset Colorectal Cancer – The ASCO Post
Commentary on Twitter
? Moderate/heavy alcohol intake linked to increased risk of early-onset #ColorectalCancer, particularly distal colon & rectal cancers ➡️ https://t.co/2akaNsHbLu #CRCSM pic.twitter.com/5DGrrmdX4i
— Journal of Clinical Oncology (@JCO_ASCO) July 18, 2023
Consensus Paper | Surgical video data use, structure, and exploration (for research in AI, quality improvement, and education)
9 Aug, 2023 | 15:20h | UTC
M-A | Percutaneous catheter drainage superior to needle aspiration for liver abscess treatment success
9 Aug, 2023 | 15:12h | UTC
Proposed algorithm for appropriate fluid management in acute pancreatitis
8 Aug, 2023 | 13:33h | UTCFluid treatment in acute pancreatitis: a careful balancing act – British Journal of Surgery
Related:
Update on the management of acute pancreatitis – Current Opinion in Critical Care
Aggressive or Moderate Fluid Resuscitation in Acute Pancreatitis – New England Journal of Medicine
Acute Pancreatitis: Diagnosis and Treatment – Drugs
Evidence-Based Disposition of Acute Pancreatitis – emDocs
Pancreatitis – National Institute for Health and Care Excellence
Research: Endoscopic or Surgical Step-up Approach for Infected Necrotising Pancreatitis
Evidence-Based Approach to the Surgical Management of Acute Pancreatitis – The Surgery Journal
RCT | Exploring the impact of total pancreatectomy with islet autotransplantation to reduce postoperative complications
8 Aug, 2023 | 13:25h | UTC
Determination of “borderline resectable” pancreatic cancer – A global assessment of 30 shades of grey
8 Aug, 2023 | 13:22h | UTC
Commentary on Twitter
What is BORDERLINE respectable?! ?
A global assessment of 30 shades of grey ???
? Interobserver variability among radiologists and surgeons globally is high
?⚖️ Central review of images required for quality control initiativeshttps://t.co/Z2G1cInZ5f pic.twitter.com/mlucwMT5f9
— Giovanni Marchegiani (@Gio_Marchegiani) July 30, 2023
Consensus Paper | Minimally invasive pancreatic surgery
8 Aug, 2023 | 13:20h | UTC
Study | Gastric bypass linked to increased risk of non-alcohol substance use disorder
7 Aug, 2023 | 14:23h | UTCNews Release: Gastric bypass surgery associated with non-alcohol substance use disorder – Obesity – The Obesity Society
ACP Guidance | Asymptomatic CRC screening advised from age 50 with fecal occult blood test every 2 years or colonoscopy every 10 years
3 Aug, 2023 | 13:48h | UTCNews Release: ACP issues updated guidance for colorectal cancer screening of asymptomatic adults – American College of Physicians
Commentary: Start screening for colorectal cancer at age 50 years, ACP suggests – ACP Internist
Summary for Patients: Screening for Colorectal Cancer in Asymptomatic Average-Risk Adults – Annals of Internal Medicine
Position Paper | Management of complicated diaphragmatic hernia in the acute setting
3 Aug, 2023 | 13:42h | UTC
Nonrandomized Controlled Trial | Long-term survival of 80% in selected colorectal cancer patients post liver transplant
1 Aug, 2023 | 14:20h | UTCLong-Term Survival, Prognostic Factors, and Selection of Patients With Colorectal Cancer for Liver Transplant: A Nonrandomized Controlled Trial – JAMA Surgery (link to abstract – $ for full-text)
Commentary on Twitter
Selected patients with liver-only CRLM and favorable pre-transplant prognostic scoring have long-term OS comparable to conventional indications for LT, providing a potential curative treatment option in patients otherwise offered only palliative treatments https://t.co/Xso5R7IDsX pic.twitter.com/uwEWijcrBp
— JAMA Surgery (@JAMASurgery) July 26, 2023
Guideline | Source control in emergency general surgery
31 Jul, 2023 | 14:32h | UTC
RCT | Liraglutide aids weight management in patients with suboptimal weight loss post metabolic surgery
28 Jul, 2023 | 14:05h | UTCSee also: Visual Abstract
AGA clinical practice update on evaluation and management of belching, abdominal bloating, and distention
27 Jul, 2023 | 13:04h | UTC
RCT | Combined pre-operative olanzapine regimen lowers postoperative nausea in high-risk cancer patients
24 Jul, 2023 | 12:49h | UTC
Systematic Review | Medical treatment of eosinophilic esophagitis
21 Jul, 2023 | 13:27h | UTCMedical treatment of eosinophilic esophagitis – Cochrane Library
Summary: Medical treatments for eosinophilic esophagitis – Cochrane Library
Related:
M-A | Efficacy of elimination diets in eosinophilic esophagitis
RCT | Dupilumab in adults and adolescents with eosinophilic esophagitis
Large bowel obstruction | ED presentation, evaluation, and management
19 Jul, 2023 | 14:17h | UTCLarge bowel obstruction: ED presentation, evaluation, and management – emDocs
AASLD Guidance | Use of TIPS, variceal embolization, and retrograde transvenous obliteration in variceal hemorrhage
11 Jul, 2023 | 13:59h | UTC
Systematic Review | Ethical perspectives on surgical video recording for patients, surgeons and society
11 Jul, 2023 | 13:44h | UTC
AAP Clinical Report | Assessment and management of inguinal hernias in children
10 Jul, 2023 | 13:50h | UTCAssessment and Management of Inguinal Hernias in Children – Pediatrics
News Release: AAP report on managing inguinal hernias addresses common questions, controversies – AAP News
Commentary: AAP issues guidance on inguinal hernias – MDedge