Patent ductus arteriosus history and symptoms

Revision as of 19:48, 1 November 2012 by WikiBot (talk | contribs) (Robot: Automated text replacement (-mgibson@perfuse.org +charlesmichaelgibson@gmail.com, -kfeeney@perfuse.org +kfeeney@elon.edu))
Jump to navigation Jump to search

Patent Ductus Arteriosus Microchapters

Home

Patient Information

Overview

Historical Perspective

Classification

Causes

Differentiating Patent Ductus Arteriosus from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

Chest X Ray

CT

MRI

Echocardiography

Other Imaging Findings

Treatment

Medical Therapy

Preterm Infants
Term and Older Children

Surgery

Primary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Patent ductus arteriosus history and symptoms On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Patent ductus arteriosus history and symptoms

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Patent ductus arteriosus history and symptoms

CDC on Patent ductus arteriosus history and symptoms

Patent ductus arteriosus history and symptoms in the news

Blogs on Patent ductus arteriosus history and symptoms

Directions to Hospitals Treating Type page name here

Risk calculators and risk factors for Patent ductus arteriosus history and symptoms

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Priyamvada Singh, M.B.B.S. [2], Cafer Zorkun, M.D., Ph.D. [3]; Assistant Editor-In-Chief: Kristin Feeney, B.S. [4]

Overview

History and symptoms

Usually asymptomatic or may present with symptoms of heart failure, lower extremity clubbing, dyspnea. Depending on the size of the PDA, a cardiac murmur can be missed during the first physical exam of the newborn, because of the high pulmonary pressure that avoids the left-to-right shunt at that time. When the pulmonary pressure drops, the murmur is evident.

Clinical manifestation of patent ductus arteriosus depends on degree of left to right shunting which in turn is affected by-

  • Size and length of the PDA
  • Difference between pulmonary and systemic vascular resistances.

Small PDA

  • May be asymptomatic.
  • Sometimes identified incidentally on routine physical examinations (due to the presence of continuous flow murmurs) or on echocardiography performed for some other conditions.

Moderate PDA(Qp:Qs between 1.5 and 2.2 to 1)

  • The moderate left-to-right shunt increases the volume overload on the left side of heart and may present with exercise intolerance.

Large PDA Presentation of large PDA in infant and children are

Symptoms due to heart failure like-

  • Failure to thrive
  • Poor feeding
  • Respiratory distress.

Presentation of large PDA in adults.

It can cause left ventricular overload. However, if the condition goes uncorrected progressive rise in pulmonary artery pressure may occur that in turn can cause a reversal of shunt i.e. right to left sided shunting. The right to left shunt can cause cyanosis and in later stages may progress to Eisenmenger syndrome.

Clinical features of Eisenmenger syndrome like cyanosis and clubbing can be found. The PDA patients typically have differential cyanosis i.e. cyanosis is more pronounced in lower extremities compared to upper.This is so because the ductus originates distal to the left subclavian artery. The left subclavian artery mainly supplies the upper extremities which escapes the shunting of blood.

References

Template:WH Template:WS