Related Experiment Video
Updated: May 5, 2026

Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
Published on: August 26, 2025
Severe delayed postpolypectomy bleeding in elder patient with post-polycythemia myelofibrosis.
Patients with post-polycythemia myelofibrosis may face delayed bleeding after endoscopic polypectomy. This case highlights the need for extended monitoring beyond one week for myeloproliferative neoplasms patients undergoing endoscopic procedures.
Area of Science:
- Gastroenterology
- Hematology
- Oncology
Background:
- Discusses medical management and monitoring of patients with myeloproliferative disorders.
- Highlights risks associated with minimally invasive surgery in this patient population.
Observation:
- A 75-year-old woman with post-polycythemia myelofibrosis experienced delayed major bleeding post-endoscopic polypectomy.
- The patient had a high platelet count (837 × 10^9/L) and was on antiplatelet therapy, withdrawn 7 days prior and resumed 1 week after the procedure.
- The resected polyp measured 11 x 19 mm on the right colon.
Findings:
- Myeloproliferative neoplasms (MPNs) represent a significant risk factor for complications during endoscopic polypectomy.
- Delayed hemorrhage occurred despite adherence to standard antiplatelet drug management protocols.
Implications:
- Current guidelines may not apply to all patients with MPNs undergoing endoscopic procedures.
- Extended patient monitoring is crucial for at least one week post-procedure, even with antiplatelet therapy, to mitigate risks of delayed bleeding.
More Related Videos
04:00Laparoscopic Splenectomy with Pericardial Devascularization for Hypersplenism and Esophageal Variceal Hemorrhage Due to Portal Hypertension
Published on: November 15, 2024
02:09Application of Laparoscopic Partial Splenectomy with Total Blood Flow Occlusion in Benign Splenic Lesions
Published on: December 20, 2024
Related Concept Videos
Venous Thrombosis IV: Nursing Management
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care
Esophageal Varices-II: Clinical Features and Management
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol...
Peripheral Artery Disease V: Postoperative Nursing Management
Peptic Ulcer
Disorders of Hemostasis
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.