Related Experiment Video
Updated: Jun 19, 2025

04:37
Comprehensive Analysis of Procoagulant Platelets Exhibiting Features of Necrosis, Apoptosis and Platelet Activation
Published on: May 23, 2025
313
Neurosurgical bleeding in platelet storage pool disorder: a case report
Clifford Pierre1, Kirsten W Alcorn2, Dong Chen3
1Neurosurgery, Swedish Neuroscience Institute, Seattle, WA, USA.
Platelets
|July 23, 2024
Summary
Dense-granule deficiency (DGD) is a rare inherited platelet disorder. Effective hemostatic planning with platelet transfusions and tranexamic acid (TXA) is crucial for managing neurosurgery in patients with DGD.
Area of Science:
- Hematology
- Platelet Disorders
- Inherited Bleeding Disorders
Background:
- Dense-granule deficiency (DGD) is an inherited platelet disorder characterized by the absence of dense granules, crucial for platelet activation.
- Diagnosis can be challenging as standard hemostasis tests, like PFA closure times, may appear normal despite a severe platelet function disorder.
Observation:
- A case report detailing a patient with a lifelong history of mucocutaneous bleeding and excessive hemorrhage during vestibular Schwannoma resection.
- Intraoperative bleeding resembled that seen with antiplatelet drug use, prompting further hematologic investigation.
Findings:
- The patient was diagnosed with a severe platelet function disorder, specifically dense-granule deficiency.
- Literature on managing intracranial neurosurgery in patients with inherited platelet disorders is limited.
Implications:
- Successful management involved meticulous hemostatic planning, including empiric platelet transfusions and tranexamic acid (TXA), to prevent recurrent bleeding during and after intracranial tumor surgery.
- This case highlights the importance of tailored management strategies for patients with DGD undergoing major surgical procedures, including neurosurgery and radiosurgery.
Related Concept Videos
Formation of the Platelet Plug
5.6K
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
5.6K
Disorders of Hemostasis
795
Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
795

