### condition | disorder | cardiovascular disease | heart disease:

Arrhythmia
* Many arrhythmias are temporary, and can be a result of alcohol, caffeine, stress, or exhaustion
  - cause few, if any, symptoms, and most can be treated successfully
  - require no treatment as they cause no important problems for the child
* Most arrhythmias are harmless, but some can be serious and can cause sudden cardiac death
  - fall into the tachycardia category
* Some arrhythmias are a temporary adjustment of the heartbeat
  - potentially fatal, causing sudden death
  - can be lethal, especially ventricular tachycardia and ventricular fibrillation
  - cause a noticeable skip, flutter or palpitation
* are a primary cause of death.
* are abnormal heart rhythms that result from problems in the heart's electrical system
* are abnormal rhythms of the heart that cause it to pump less effectively
  - disruptions in the natural rhythm of the heartbeat
  - disturbances in the normal rhythm of the heartbeat
  - electrophysiological events triggered by chemical signaling dysfunction
  - frequent as are altered mental status, nausea vomiting, diarrhea and abdominal
* are the main cause of sudden cardiac death
  - most common sign of cardiac involvement, as with any metastatic cancers
  - uncommon in acute pericarditis
* are very common, affecting millions of people worldwide
* can be either fast or slow.
* factor into half of all sudden cardiac deaths in the United States each year.
* occur commonly in middle-age adults
  - in many forms and are one of the most common heart conditions
  - throughout the population
* often can occur without any symptoms at all
  - occur during and after heart attacks

### condition | disorder | cardiovascular disease | heart disease | arrhythmia:

Heart arrhythmia
* are irregularities of the heartbeat.
* can contribute to such clotting, as can heart attacks.

Heart block
* are cardiac arrhythmia
  - heart diseases
* can occur, as well as inflammation of the heart muscle.
* causes no risk to others.
* disorder of the heartbeat.
* is an indicator of the disease process
  - another condition that effects the rhythm of the heart
  - described as first, second, or third degree
  - like a fault in one of the wires, which interrupts the passage of the nerve signal

Tachycardia
* Some tachycardias are so fast that no pulse or only a weak pulse are present.
* are cardiac arrhythmia.
* diminishes over time but remains substantial at higher doses.
* is arrhythmia
* resolves when conditions return to normal.

### condition | disorder | cardiovascular disease | heart disease | arrhythmia | tachycardia:

Supraventricular tachycardia
* are common
  - fast heart beats originating from the upper chambers of the heart
* occur with or without ventricular conduction abnormalities.

### condition | disorder | cardiovascular disease | heart disease:

Cardiac arrhythmia
* Any cardiac arrhythmia is possible with digoxin intoxication.
* Most cardiac arrhythmias are temporary and benign.
* are a common cause of sudden death in anorexia nervosa patients
  - often present
  - rare
* become more common with age.
* can range in severity from entirely benign to immediately life threatening
  - result from hydrocarbons sensitizing the heart to catacholamines
* is diseases
  - the leading cause of death in the Western world
* occur much more commonly in children than most parents believe.
* range in seriousness from insignificant to the life threatening.
* strike like lightning, with no warning.
* term that denotes a disturbance of the heart rhythm.

### condition | disorder | cardiovascular disease | heart disease | cardiac arrhythmia:

Atrial arrhythmia
* are a common and serious complication of cardiac surgical procedures
  - often harmless
* develop, and pulse, respiration, and level of consciousness decrease.
* is cardiac arrhythmia.