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 Concept Videos

Vitamins01:30

Vitamins

Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced in our...
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
Disorders of Hemostasis01:24

Disorders of Hemostasis

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.
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants01:18

Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants

Oral anticoagulants are vital tools in preventing and treating blood clotting disorders. This diverse class of medications can be categorized as vitamin K antagonists, exemplified by warfarin, and direct thrombin inhibitors (DTIs), such as dabigatran, as well as factor Xa inhibitors, including rivaroxaban.
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...

You might also read

Related Articles

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

Sort by
Same author

Competing quantum orders in 6R-TaS<sub>2</sub> revealed by pressure.

Nature communications·2026
Same author

Acampomelic form of campomelic dysplasia with SOX9 missense mutation.

Indian journal of pediatrics·2013
Same author

Red Tide Phenomenon Leading to Panic Attack and Mass Casualty among Children in Coastal Kerala.

Indian journal of community medicine : official publication of Indian Association of Preventive & Social Medicine·2010
Same author

Air embolism in assisted ventilation.

Indian pediatrics·1998

Related Experiment Video

Updated: Jun 7, 2026

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
09:14

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model

Published on: June 18, 2021

Vitamin K deficiency bleeding presenting as impending brain herniation.

H Gopakumar1, R Sivji, P K Rajiv

  • 1Department of Neonatology, Amrita Institute of Medical Sciences (AIMS), Kochi, Kerala, India.

Journal of Pediatric Neurosciences
|November 3, 2010
PubMed
Summary

Vitamin K deficiency bleeding (VKDB) is rare due to routine newborn prophylaxis. This case highlights a rare late-onset intracranial hemorrhage from VKDB, emphasizing potential severe neurological complications.

Keywords:
Intracranial hemorrhagevitamin K deficiency bleeding

More Related Videos

Determination of the Procoagulant Activity of Extracellular Vesicle (EV) Using EV-Activated Clotting Time (EV-ACT)
04:56

Determination of the Procoagulant Activity of Extracellular Vesicle (EV) Using EV-Activated Clotting Time (EV-ACT)

Published on: August 4, 2023

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
10:34

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage

Published on: August 30, 2020

Related Experiment Videos

Last Updated: Jun 7, 2026

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model
09:14

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model

Published on: June 18, 2021

Determination of the Procoagulant Activity of Extracellular Vesicle (EV) Using EV-Activated Clotting Time (EV-ACT)
04:56

Determination of the Procoagulant Activity of Extracellular Vesicle (EV) Using EV-Activated Clotting Time (EV-ACT)

Published on: August 4, 2023

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
10:34

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage

Published on: August 30, 2020

Area of Science:

  • Pediatrics
  • Hematology
  • Neurology

Background:

  • Universal vitamin K prophylaxis at birth significantly reduces the incidence of vitamin K deficiency bleeding (VKDB).
  • Severe bleeding manifestations, once common, are now exceedingly rare in neonates receiving prophylactic vitamin K.
  • This practice aims to prevent hemorrhagic disease of the newborn.

Observation:

  • A case of late-onset vitamin K deficiency bleeding is presented.
  • The presentation involved intracranial hemorrhage with signs of impending coning (brain herniation).
  • This contrasts with the typical, less severe bleeding patterns usually observed.

Findings:

  • Severe VKDB can manifest with intracranial hemorrhage, a rare but serious complication.
  • The case involved multiple cranial sites of bleeding, suggesting extensive hemorrhagic diathesis.
  • Impending brain herniation is an exceptionally rare outcome of vitamin K deficiency bleeding.

Implications:

  • Clinicians should maintain a high index of suspicion for VKDB even in infants with delayed presentation.
  • Prompt diagnosis and management of VKDB are crucial to prevent severe neurological sequelae.
  • This case underscores the importance of recognizing atypical presentations of vitamin K deficiency.