Intracranial hemorrhage in coronavirus disease 2019 (COVID-19) patients

Isaac Cheruiyot1,2, Prabjot Sehmi3, Beryl Ominde4

  • 1Department of Human Anatomy, University of Nairobi, Nairobi, Kenya. isaacbmn@outlook.com.

Insights

Intracranial hemorrhage (ICH) occurred in 0.7% of COVID-19 patients, often elderly males with hypertension. This condition, though uncommon, carried a high 48.6% mortality rate, highlighting the need for early risk identification.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Public Health

Background:

  • COVID-19 is linked to cerebrovascular events, including ischemic stroke.
  • Data on intracranial hemorrhage (ICH) in COVID-19 patients remains limited.
  • This review consolidates evidence on ICH occurrence in hospitalized COVID-19 patients.

Purpose of the Study:

  • To systematically review and analyze the incidence and characteristics of intracranial hemorrhage (ICH) in patients with COVID-19.
  • To consolidate current scientific literature on ICH in the context of COVID-19 infection.

Main Methods:

  • A systematic literature search was performed on PubMed and CNKI from November 2019 to August 2020.
  • Included studies described intracranial hemorrhage (ICH) in COVID-19 patients.
  • Data extraction focused on patient demographics, comorbidities, hemorrhage characteristics, treatment, and outcomes.

Main Results:

  • 23 studies reported on 148 COVID-19 patients with ICH; pooled incidence was 0.7%.
  • Most affected patients were elderly males (65.8%) with hypertension (54%).
  • Intraparenchymal hemorrhage was most common (62.6%); mortality rate was 48.6%.

Conclusions:

  • Intracranial hemorrhage (ICH) is an uncommon but serious complication of COVID-19.
  • High mortality associated with ICH in COVID-19 patients necessitates early identification of at-risk individuals.
  • Comorbidities and anticoagulant use are key factors in patients developing ICH during COVID-19.
Abstract

Related Concept Videos

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...
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...
Brain Abscess l: Introduction01:26

Brain Abscess l: Introduction

A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...
Increased Intracranial Pressure l: Introduction01:14

Increased Intracranial Pressure l: Introduction

Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...
Increased Intracranial Pressure ll: Pathophysiology01:29

Increased Intracranial Pressure ll: Pathophysiology

Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins with...
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...