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Related Concept Videos

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...
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...
Fetal Circulation01:14

Fetal Circulation

Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
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.
Pathophysiology of Diabetes01:20

Pathophysiology of Diabetes

Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility, suggesting a...
Introduction to Hemostasis01:05

Introduction to Hemostasis

Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized, and...

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Related Experiment Video

Updated: Jun 23, 2026

Auricular Point Acupressure Therapy: A Safe and Effective Treatment for Postsurgical Abortion Recovery
07:28

Auricular Point Acupressure Therapy: A Safe and Effective Treatment for Postsurgical Abortion Recovery

Published on: February 3, 2026

[Postpartum haemorrhage].

H Karlsson1, C Pérez Sanz

  • 1Servicio de Obstetricia y Ginecología, Hospital Virgen del Camino, Pamplona, 31008, Spain.

Anales Del Sistema Sanitario De Navarra
|May 14, 2009
PubMed
Summary
This summary is machine-generated.

Postpartum haemorrhage (PPH) is a major cause of maternal death. Early PPH, often caused by uterine atony, is serious but preventable with proactive strategies during labor.

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Description of a Swine Infant Model of Volume-Controlled Hemorrhagic Shock
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Description of a Swine Infant Model of Volume-Controlled Hemorrhagic Shock

Published on: November 3, 2023

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Last Updated: Jun 23, 2026

Auricular Point Acupressure Therapy: A Safe and Effective Treatment for Postsurgical Abortion Recovery
07:28

Auricular Point Acupressure Therapy: A Safe and Effective Treatment for Postsurgical Abortion Recovery

Published on: February 3, 2026

Description of a Swine Infant Model of Volume-Controlled Hemorrhagic Shock
09:09

Description of a Swine Infant Model of Volume-Controlled Hemorrhagic Shock

Published on: November 3, 2023

Area of Science:

  • Obstetrics and Gynecology
  • Maternal Health
  • Critical Care Medicine

Context:

  • Postpartum haemorrhage (PPH) is a leading cause of global maternal mortality.
  • Defined as >500ml (vaginal) or >1000ml (caesarean) blood loss post-delivery.
  • Early PPH (within 24 hours) is particularly severe.

Purpose:

  • To outline the definition, causes, diagnosis, and management of early postpartum haemorrhage (EPH).
  • To emphasize the importance of preventative strategies in labor.

Summary:

  • EPH causes include uterine atony (most common), trauma, retained products, and coagulation issues.
  • Diagnosis is primarily clinical.
  • Management involves life support and etiological treatments.

Impact:

  • Effective, systematic prevention during labor can significantly reduce EPH incidence.
  • Improved understanding and management of PPH can decrease maternal mortality rates.