Patent ductus arteriosus natural history, complications, and prognosis

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 natural history, complications, and prognosis 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 natural history, complications, and prognosis 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 natural history, complications, and prognosis
CDC on Patent ductus arteriosus natural history, complications, and prognosis
Patent ductus arteriosus natural history, complications, and prognosis in the news
Blogs on Patent ductus arteriosus natural history, complications, and prognosis
Directions to Hospitals Treating Type page name here
Risk calculators and risk factors for Patent ductus arteriosus natural history, complications, and prognosis

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

The natural history of unoperated patients of patent ductus arteriosus depends on the amount of left to right shunting. The left to right shunting in turn depends on the size of ductus and the difference in resistance between the left and right side of heart.

Natural History

Small PDA

• May remain asymptomatic
• Rarely can increase the risk of endarteritis

Moderate PDA

• Left sided heart dysfunction
• Rhythm disturbances like atrial fibrillation as a result of left sided dysfunction

Large PDA

• Left ventricular volume overload
• Increased pulmonary resistance
• Eisenmenger's syndrome.

Complications

Heart failure

• Clinical feature - failure to thrive, feeding difficulties and respiratory distress.
• Management involves-
  • Medical treatment with digoxin and diuretic
  • Surgical closure.

Infective endocarditis

• Increases risk of septic emboli to lung
• PDA complicated with infective endocarditis is an indication for closure of PDA(ACC/AHA, 2008)

Rhythm disturbance

• Often associated with atrial fibrillation (left sided dysfunction).

Pulmonary hypertension Signs of pulmonary hypertension-

• Right ventricular impulse on palpation
• Pulmonary ejection sound
• A loud single second heart sound
• Graham Steel murmur. The Graham-Steel murmur of pulmonic regurgitation and hypertension. It is high-pitched and "blowing."

Eisenmenger syndrome

Prognosis

Prognosis of patent ductus arteriosus varies widely. It depends on:

• The size of patent ductus arteriosus
• Whether the patient has been treated with closure medicines.
• Whether surgery has been done.
• Whether the patient with complications or not, such as heart failure, problems with lung development, or infective endocarditis

External links

• High-Risk Newborn - Patent Ductus Arteriosus (PDA)
• Patent Ductus Arteriosus from Merck
• Fetal Circulation at berkeley.edu
• Goldminer: Patent ductus arteriosus