Patent foramen ovale pathophysiology

Revision as of 16:05, 21 November 2019 by Ifeoma odukwe (talk | contribs)
Jump to navigation Jump to search

Patent Foramen Ovale Microchapters

Home

Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Patent Foramen Ovale from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

PFO and Stroke

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

Interventions

Surgery

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Patent foramen ovale pathophysiology On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Patent foramen ovale pathophysiology

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Patent foramen ovale pathophysiology

CDC on Patent foramen ovale pathophysiology

Patent foramen ovale pathophysiology in the news

Blogs on Patent foramen ovale pathophysiology

Directions to Hospitals Treating Patent foramen ovale

Risk calculators and risk factors for Patent foramen ovale pathophysiology

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editors-In-Chief: Priyamvada Singh, M.B.B.S. [2]; Assistant Editor-In-Chief: Kristin Feeney, B.S. [3]

Overview

A patent foramen ovale is a flap-like structure in inter-atrial septum that is formed by failure of postnatal fusion of septum primum and septum secundum. It periodically opens and allows blood to shunt between the two atria. Thus, it is also sometimes called as a probe patent (PFO). This flap-like structure functions like a one-way valve mechanism that only opens to allow blood to flow from the right atrium to the left atrium during times where there is an increase flow or pressure in the right atrium. Elevation of pressure in the pulmonary circulatory system (i.e. pulmonary hypertension, cough or valsalva maneuver) can cause the foramen ovale to open.

Pathophysiology

Physiology

Pathogenesis

  • Patent foramen ovale is an opening between the septum primum and septum secundum that stays open after 1 year of age.[1]

Associated Conditions

Conditions associated with patent foramen ovale include:

  • Migraine headaches

References

  1. Morjaria R, Tsaloumas M, Shah P (2015). "An unusual presentation of patent foramen ovale". JRSM Open. 6 (8): 2054270415596320. doi:10.1177/2054270415596320. PMC 4562378. PMID 26380102.


Template:WikiDoc Sources