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).
Atrioventricular block- MedGen UID:
- 13956
- •Concept ID:
- C0004245
- •
- Disease or Syndrome
Delayed or lack of conduction of atrial depolarizations through the atrioventricular node to the ventricles.
Primary dilated cardiomyopathy- MedGen UID:
- 2880
- •Concept ID:
- C0007193
- •
- Disease or Syndrome
Familial dilated cardiomyopathy is a genetic form of heart disease. It occurs when heart (cardiac) muscle becomes thin and weakened in at least one chamber of the heart, causing the open area of the chamber to become enlarged (dilated). As a result, the heart is unable to pump blood as efficiently as usual. To compensate, the heart attempts to increase the amount of blood being pumped through the heart, leading to further thinning and weakening of the cardiac muscle. Over time, this condition results in heart failure.\n\nIt usually takes many years for symptoms of familial dilated cardiomyopathy to cause health problems. They typically begin in mid-adulthood, but can occur at any time from infancy to late adulthood. Signs and symptoms of familial dilated cardiomyopathy can include an irregular heartbeat (arrhythmia), shortness of breath (dyspnea), extreme tiredness (fatigue), fainting episodes (syncope), and swelling of the legs and feet. In some cases, the first sign of the disorder is sudden cardiac death. The severity of the condition varies among affected individuals, even in members of the same family.
Sick sinus syndrome- MedGen UID:
- 20749
- •Concept ID:
- C0037052
- •
- Disease or Syndrome
An abnormality involving the generation of the action potential by the sinus node and is characterized by an atrial rate inappropriate for physiological requirements. Manifestations include severe sinus bradycardia, sinus pauses or arrest, sinus node exit block, chronic atrial tachyarrhythmias, alternating periods of atrial bradyarrhythmias and tachyarrhythmias, and inappropriate responses of heart rate during exercise or stress.
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 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).
Paroxysmal atrial fibrillation- MedGen UID:
- 115990
- •Concept ID:
- C0235480
- •
- Disease or Syndrome
Episodes of atrial fibrillation that typically last for several hours up to one day and terminate spontaneously.
Ventricular couplet- MedGen UID:
- 452515
- •Concept ID:
- C0429001
- •
- Finding
Two consecutive premature ventricular contractions (PVCs) with no intervening normal beats.
Atrial standstill- MedGen UID:
- 639047
- •Concept ID:
- C0541782
- •
- Pathologic Function
Atrial standstill or silent atrium is a rare condition presenting with the absence of electrical and mechanical activity in the atria. It presents with the absence of P waves, bradycardia, and wide QRS complex in the electrocardiogram.
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.
Reduced systolic function- MedGen UID:
- 870560
- •Concept ID:
- C4025008
- •
- Finding
Effort-induced polymorphic ventricular tachycardia- MedGen UID:
- 870838
- •Concept ID:
- C4025298
- •
- Finding
Polymorphic ventricular arrhythmias of varying morphologythat do not exist under resting conditions but appear only upon physical exercise or catecholamine administration.
Seizure- MedGen UID:
- 20693
- •Concept ID:
- C0036572
- •
- Sign or Symptom
A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.
- Abnormality of the cardiovascular system
- Abnormality of the nervous system
- Constitutional symptom