Lecture Two ( peds heart)-Exam 2 Flashcards
What is the normal heart rate for newborn through adolescent?
- Newborn: Faster
- Adolescent: Slower more like adult
Definition of arrhythmias?
- a condition in which the heart beats with an irregular or abnormal rhythm
- an alteration in rhythm of the heartbeat either in time or force
What are some asymptomatic arrhythmias in children?
● Sinus arrhythmia
● Ventricular premature beats (VPBs) or Premature ventricular contractions (PVCs)
●Atrial premature beats (APBs) or Premature atrial contractions (PACs)
What is sinus arrhythmia? When can it be hard to hear?
A normal physiologic variant that is characterized by an increased heart rate during inspiration and a decreased heart rate during expiration which is a benign condition
* Hard to hear in slow HRs for example athletic children
What are some arrhythmias of symptomatic children?
● Atrial arrhythmias
● Supraventricular tachycardia (common)
● Ventricular tachycardia
● Sinus node dysfunction
● Second degree heart block
What are the common symptoms of arrhythmias? (difference between children and newborn)
What are some common symptoms of arrhythmias in babies?
- Fainting
- Palness
- Slow heartbeat
- Feeling pauses between heartbeats
- Sweating
- SOB
- Irritability in infants
- Difficulty feeding (infants)
What are some common symptoms of arrhythmias in older children?
*Weakness
*Tiredness
*Palpitations
*Feeling lightheaded or dizzy
*Fainting or near fainting
*Paleness
*Chest pain
*A fast heartbeat
*Feeling pauses between heartbeats
*Sweating
*Shortness of breath
*Irritability in infants
*Difficulty feeding (infants)
What are the causes of arrhythmias?
*Infections: via vag canal, in utero, and in the world
*Chemical imbalances: electrolytes
*Fever: need to be careful because it can instestify
*Medications: albuterol
*Heart defect: could happen so need echo and EKG
*Cardiomyopathy (disease of the heart muscle)
Supraventricular Tachycardia (SVT):
* What is it?
* Most common what?
* How many in general pediatric population
* How many in congenital heart disease?
* Majority of patients presenting with SVT have what?
- Definition: abnormally rapid heart rhythm originating above the ventricles
- Most common rhythm disturbance in children
- ~0.1% to 0.4 % in the general pediatric population
- Among children with congenital heart disease it occurs in ~7%
- Majority of patients presenting with SVT have structurally normal hearts.
Supraventricular Tachycardia (SVT):
* The heart rate is _ dependent
* What are the HR typical ranges for infants and children+adolescents? ⭐️
* What is the duration of event?
Heart rate - age-dependent
Typical ranges
● Infants: 220 - 280 beats per minute (bpm)
● Children and adolescents: 180 - 240 bpm
Duration of event
● average duration is 10 - 15 minutes, some episodes last only one to two minutes, while others persist for hours
What are the symptoms of SVT in infants?
- Pallor, fussiness, irritability, poor feeding, and/or cyanosis
- The symptoms can be subtle, and tachycardia may go unrecognized for long periods of time
- Infants often present with symptoms of heart failure (ex: tachypnea, fatigue with feeding, poor weight gain)
SVT all the time can lead to what?
Heart failure
What are the symptoms of SVT in children and adolescents?
- Palpitations, chest discomfort, fatigue, lightheadedness
- Syncope is less common and may be a warning sign for increased risk of sudden death
SVT is usually characterized by what?
by abrupt onset and termination. Most SVT episodes occur at rest, although exercise can be a trigger in some patients.
Supraventricular Tachycardia (SVT):
* SVT in early infancy often what?
* Is long term therapy needed?
* Some patients may have what?
* When does SVT tend to stay lifelong?
- SVT in early infancy often resolves by age 1 year
- Long-term therapy may not be needed (b-blockers and ablasion)
- Some patients may have recurrence later in childhood
- SVT present >5 years tends to persis
Vagal maneuver for SVT?
Ice to face, blow into straw, rectal stimulation
* NO carotid massages on children
What is dextrocardia?
an abnormal condition in which the heart is situated on the right side and the great blood vessels of the right and left sides are reversed
What are the areas that you need to listen to for newborn heart?
Where should we listen to the heart sounds for dextrocardia?