From HPO
Sudden cardiac death- MedGen UID:
- 38841
- •Concept ID:
- C0085298
- •
- Pathologic Function
The heart suddenly and unexpectedly stops beating resulting in death within a short time period (generally within 1 h of symptom onset).
Atrial fibrillation- MedGen UID:
- 445
- •Concept ID:
- C0004238
- •
- Finding
An atrial arrhythmia characterized by disorganized atrial activity without discrete P waves on the surface EKG, but instead by an undulating baseline or more sharply circumscribed atrial deflections of varying amplitude an frequency ranging from 350 to 600 per minute.
Syncope- MedGen UID:
- 21443
- •Concept ID:
- C0039070
- •
- Sign or Symptom
Syncope is a syndrome in which loss of consciousness is of relatively sudden onset, temporary (usually less than 1 to 2 minutes), self-terminating, and of usually rapid recovery. Syncope leads to a generalized weakness of muscles with loss of postural tone, inability to stand upright, and loss of consciousness. Once the patient is in a horizontal position, blood flow to the brain is no longer hindered by gravitation and consciousness is regained. Unconsciousness usually lasts for seconds to minutes. Headache and drowsiness (which usually follow seizures) do not follow a syncopal attack. Syncope results from a sudden impairment of brain metabolism usually due to a reduction in cerebral blood flow.
Ventricular fibrillation- MedGen UID:
- 21844
- •Concept ID:
- C0042510
- •
- Disease or Syndrome
Uncontrolled contractions of muscles fibers in the left ventricle not producing contraction of the left ventricle. Ventricular fibrillation usually begins with a ventricular premature contraction and a short run of rapid ventricular tachycardia degenerating into uncoordinating ventricular fibrillations.
Shortened QT interval- MedGen UID:
- 489827
- •Concept ID:
- C0151879
- •
- Finding
Decreased time between the start of the Q wave and the end of the T wave as measured by the electrocardiogram (EKG).
Bradycardia- MedGen UID:
- 140901
- •Concept ID:
- C0428977
- •
- Finding
A slower than normal heart rate (in adults, slower than 60 beats per minute).
- Abnormality of the cardiovascular system
- Constitutional symptom