From HPO
Sudden death- MedGen UID:
- 8257
- •Concept ID:
- C0011071
- •
- Pathologic Function
Rapid and unexpected death.
Cardiac arrest- MedGen UID:
- 5456
- •Concept ID:
- C0018790
- •
- Finding
An abrupt loss of heart function.
Palpitations- MedGen UID:
- 14579
- •Concept ID:
- C0030252
- •
- Finding
A sensation that the heart is pounding or racing, which is a non-specific sign but may be a manifestation of arrhythmia.
Paroxysmal ventricular tachycardia- MedGen UID:
- 18315
- •Concept ID:
- C0030591
- •
- Disease or Syndrome
Episodes of ventricular tachycardia that have a sudden onset and ending.
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.
Ventricular tachycardia- MedGen UID:
- 12068
- •Concept ID:
- C0042514
- •
- Finding
A tachycardia originating in the ventricles characterized by rapid heart rate (over 100 beats per minute) and broad QRS complexes (over 120 ms).
Premature ventricular contraction- MedGen UID:
- 56236
- •Concept ID:
- C0151636
- •
- Disease or Syndrome
Premature ventricular contractions (PVC) or ventricular extrasystoles are premature contractions of the heart that arise in response to an impulse in the ventricles rather than the normal impulse from the sinoatrial (SA) node.
Prolonged QT interval- MedGen UID:
- 57494
- •Concept ID:
- C0151878
- •
- Finding
Increased time between the start of the Q wave and the end of the T wave as measured by the electrocardiogram (EKG).
Polymorphic ventricular tachycardia- MedGen UID:
- 138002
- •Concept ID:
- C0344432
- •
- Disease or Syndrome
A type of ventricular tachycardia that is characterized by variable QRS complexes within each lead (i.e., QRS complexes may be different from beat to beat).
Prolonged QTc interval- MedGen UID:
- 294666
- •Concept ID:
- C1560305
- •
- Pathologic Function
A longer than normal interval (corrected for heart rate) between the Q and T waves in the heart's cycle. Prolonged QTc can cause premature action potentials during late phase depolarizations thereby leading to ventricular arrhythmias and ventricular fibrillations.
Bidirectional tachycardia- MedGen UID:
- 418944
- •Concept ID:
- C2930902
- •
- Disease or Syndrome
Bidirectional ventricular tachycardia (BDVT) is a regular ventricular tachyarrhythmia (VT) with two different QRS morphologies alternating at a rate typically between 140 and 180 bpm.
- Abnormality of the cardiovascular system
- Constitutional symptom