Altitude sickness pathophysiology

https://www.youtube.com/watch?v=hKACkc5aUTE}}

Altitude sickness Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Altitude Sickness from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
Diagnostic study of Choice
History and Symptoms
Physical Examination
Laboratory Findings
Electrocardiogram
X-ray
Echocardiography and Ultrasound
CT
MRI
Other Imaging Findings
Other Diagnostic Studies
Treatment
Medical Therapy
Surgery
Primary Prevention
Secondary Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Altitude sickness pathophysiology On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Altitude sickness pathophysiology All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Altitude sickness pathophysiology
CDC on Altitude sickness pathophysiology
Altitude sickness pathophysiology in the news
Blogs on Altitude sickness pathophysiology
Directions to Hospitals Treating Altitude sickness
Risk calculators and risk factors for Altitude sickness pathophysiology

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Farima Kahe M.D. [2]

Overview

Altitude sickness caused by an increase in pulmonary artery pressure due to the normal pulmonary vasoconstriction induced by hypoxia.

Pathophysiology

Abbreviations: CBV= Cerebral blood volume, CBF= Cerebral or coronary blood flow, Pcap= Pulmonary capillary pressure, HACE= High-altitude cerebral edema, HAPE= High-altitude pulmonary edema

Altitude hypoxemia

Brain

Lung

Vasodilation

Uneven vasoconstriction

↑CBV

↑CBF

↑PAP

Overperfusion

Focal/regional overperfusion

↑Pcap

↑Pcap

Vasogenic edema

Capillary leak

HACE

HAPE