Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Jun 23, 2026

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
06:46

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

Adverse Events after Colorectal Polypectomy in Patients with Amyloidosis: Risk Assessment Using Propensity Score

Hiroshi Sawaguchi1, Tadanobu Nagaya2, Tomoyuki Nakajima3

  • 1Division of Gastroenterology and Hepatology, Department of Medicine, Shinshu University School of Medicine, Matsumoto, Japan.

Digestion
|June 22, 2026
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Microangiopathic Hemolytic Anemia Due to Disseminated Carcinomatosis of the Bone Marrow in Esophageal Adenocarcinoma.

Internal medicine (Tokyo, Japan)·2026
Same author

Human Intestinal Spirochetosis Shows Higher Positivity in Sessile Serrated Lesions Than in Tubular Adenomas With Preferential Colonization of Absorptive Epithelium.

Pathology international·2026
Same author

Localized Gastrointestinal Light Chain (AL) Amyloidosis Under Surveillance for Five Years: A Case Report.

DEN open·2026
Same author

Prognostic impact of vascular CXCR4 expression in colorectal carcinoma.

Experimental and molecular pathology·2026
Same author

Reply to "Comment on: Long-term evaluation of Helicobacter pylori screening in school health checkups: an 11-year study in Japan".

Journal of gastroenterology·2026
Same author

Clinicopathological features of primary cold agglutinin disease in the Japanese population: Heterogeneous characteristics and diagnostic challenges.

Journal of clinical and experimental hematopathology : JCEH·2026
Same journal

Prospective validation of magnified endoscopic examination with image-enhanced endoscopy as an optical biopsy for differentiating superficial duodenal epithelial tumor and non-neoplastic lesion in duodenum.

Digestion·2026
Same journal

Accurate imaging diagnosis of small pancreatic carcinoma/high-grade pancreatic intraepithelial neoplasia using combined indirect imaging findings.

Digestion·2026
Same journal

Restoration of gut microbiota dysbiosis by a probiotic Lactobacillus paragasseri OLL2716 in patients being treated with low-dose aspirin and acid-suppressive agents.

Digestion·2026
Same journal

Prognostic effect of MES 1 inflammatory extent on remission maintenance in ulcerative colitis.

Digestion·2026
Same journal

Cold Sensation and Gastric Accommodation in Functional Dyspepsia: An Exploratory Study of Autonomic Function.

Digestion·2026
Same journal

Fully automated detection of pancreaticobiliary maljunction based on 3D magnetic resonance cholangiopancreatography using deep learning.

Digestion·2026
See all related articles
This summary is machine-generated.

Patients with amyloidosis face a higher risk of immediate post-polypectomy bleeding (IPPB) after colorectal procedures. Muscularis mucosae deposition and endoscopic mucosal resection (EMR) are key risk factors in these patients.

Area of Science:

  • Gastroenterology
  • Endoscopy
  • Pathology

Background:

  • Amyloidosis is suspected to increase post-polypectomy bleeding risk due to fragile mucosa and vasculature.
  • This study aimed to compare adverse events following colorectal polypectomy in patients with and without amyloidosis.

Purpose of the Study:

  • To compare adverse events after colorectal polypectomy between patients with and without amyloidosis.
  • To identify risk factors for immediate post-polypectomy bleeding (IPPB) in patients undergoing colorectal polypectomy.

Main Methods:

  • Retrospective analysis of 21 amyloidosis patients and 110 non-amyloidosis patients undergoing cold snare polypectomy (CSP) or endoscopic mucosal resection (EMR).
  • Propensity score matching was used to compare IPPB, delayed bleeding, and perforation rates.
Keywords:
AmyloidosisImmediate post-polypectomy bleedingPolypectomy

Related Experiment Videos

Last Updated: Jun 23, 2026

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
06:46

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

  • Generalized estimating equation (GEE) logistic regression analyzed risk factors for IPPB in the matched cohort.

    • Main Results:

    • Immediate post-polypectomy bleeding (IPPB) occurred significantly more often in the amyloidosis group (p = 0.008).
    • Amyloidosis was independently associated with increased IPPB risk (adjusted OR 3.20, p = 0.027).
    • In amyloidosis patients, muscularis mucosae deposition (OR 6.55, p = 0.009) and EMR (OR 8.26, p = 0.020) predicted IPPB.

    Conclusions:

    • Amyloidosis is an independent risk factor for increased IPPB after colorectal polypectomy.
    • Muscularis mucosae deposition and EMR identify higher-risk lesions in amyloidosis patients.
    • Consider cold snare polypectomy (CSP) when feasible to mitigate bleeding risk in amyloidosis patients.