Tetralogy of fallot history and symptoms

Tetralogy of fallot Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Tetalogy of Fallot 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
Chest X Ray
Echocardiography
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
ACC/AHA Guidelines for Evaluation and Follow-up
Tetralogy of fallot 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 Tetralogy of fallot 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 Tetralogy of fallot history and symptoms
CDC on Tetralogy of fallot history and symptoms
Tetralogy of fallot history and symptoms in the news
Blogs on Tetralogy of fallot history and symptoms
Directions to Hospitals Treating Type page name here
Risk calculators and risk factors for Tetralogy of fallot history and symptoms

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

Overview

Tetralogy of fallot causes cyanosis, dyspnea, failure to thrive and potentially fatal tet spells.

History and Symptoms

• Right ventricular outflow obstruction determines the clinical presentation.
• The primary symptom is low blood oxygen saturation with or without cyanosis from birth or developing in the first year of life. In the absence of cyanosis, the baby is referred to as a pink tet.
• Cyanosis becomes progressively worse with time as the patient outgrows the ability of pulmonary blood flow to keep up with increasing oxygen demands.
• The following factors exacerbate cyanosis and should be avoided if at all possible:

• Acidosis
• Stress
• Infection
• Posture (upright, not squatting)
• Exercise
• Beta-adrenergic agonists
• Dehydration
• Closure of the patent ductus arteriosus

• Tet spells characterized by a sudden, marked increase in cyanosis, syncope, which may result in hypoxic brain injury and death.
• Difficulty in feeding
• Failure to gain weight
• Failure to thrive
• Retarded growth and physical development
• Dyspnea on exertion
• Hemoptysis