Medical Information Center    
High Blood Pressure in Children and Teens
Concern
& Care

关爱

   
   
Karl Balch MSIII, Yingshan Shi, MD
The page started on 03/14/09, updated on 06/13//2009
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  Blood Pressure Charts for Childrens and Teens
Blood Pressure Charts for Boys and Girls-PDF PH
Blood Pressure Chart for Boys-PDF NIH Boys' height CDC
Blood Pressure Chart for Girls-PDF NIH Girls' height CDC

Links for Physicians
High Blood Pressure Medline
www.nhlbi.nih.gov Diagnosis, Evaluation, and Treatment of High Blood Pressure in Children and Adolescents
Guideline: Hypertension in Children and Adolescents
Guideline: Hypertension in Adults

Links for Parents
High Blood Pressure.htm AAP
High-blood-pressure-in-children Mayo
Effect of High Blood Pressure NHLBI
High BP in Children and Adolesents uchicago
High BP in Infants Medeline

Blood Pressure Monitoring at Home FD
High Blood Pressure CCBD
Hypertension information for parents Kidshealth
Hypertension information for teens Kidshealth
High Blood Pressure and Chronic Kidney Disease in Children NKF

What is Hypertension?
Hypertension is the medical term for high blood pressure. High blood pressure is very common in adults but children and teenagers can get high blood pressure too! High blood pressure puts kids at risk for future heart disease and stroke as an adult.

What do the blood pressure numbers mean?
A blood pressure is measured with two numbers. These numbers are the systolic pressure (the bigger number) and the diastolic pressure (the smaller number). Systolic pressure is the pressure in your arteries when the heart beats. The diastolic pressure is the minimum pressure in your arteries when the heart is relaxed. High blood pressure can come from high systolic or diastolic pressure.
Example: Blood pressure of 120/70. 120 = Systolic pressure and 70 = diastolic pressure.

Is my child’s blood pressure normal?
What is considered normal for blood pressure is determined by gender, age, and height.
Blood Pressure Charts for Childrens and Teens
Blood Pressure Chart for Boys-PDF NIH Boys' height CDC
Blood Pressure Chart for Girls-PDF NIH Girls' height CDC
If your child’s blood pressure is high enough to be between the top 5-10% of kids that is called Prehypertension. If your child’s blood pressure is measured in the top 5% of kids on 3 or more separate occasions this is called Hypertension.
When hypertension is diagnosed different tests can help determine the cause.

  • A medical history and physical exam.
  • Laboratory tests, such as blood and urine testing.
  • An echocardiogram (ultrasound of the heart) to determine if there are any problems with the heart.
  • Kidney ultrasound to determine if there are any problems with the kidneys.

How often should we check blood pressure?
All children over 3 years old should have their blood pressure measured during their routine checkup once a year. Blood pressure measurements should be measured in younger children who have kidney or heart disease.
Can anything make blood pressure look higher than it really is?
There are a multiple reasons why your child’s blood pressure could be measured higher than it really is. Checking for these things during measurement can make sure that the blood pressure that is read is the real pressure.

  • The blood pressure should not be measured if the child is crying or unable to cooperate.
  • An appropriate-size cuff should be used. A cuff that is too small can overestimate the pressure.
  • Caffeine can raise blood pressure even if taken several hours before measurement.
  • "White coat" hypertension is the name given to high blood pressure caused by anxiety in the pediatrician’s office. If your child is always very nervous about coming to the doctor, you might consider measuring their blood pressure outside of the doctor’s office to see if it is lower.

Does all high blood pressure have the same cause?
No, there are two different categories for high blood pressure.

Primary hypertension — also called essential hypertension, has no identifiable cause. It is the most common cause of high blood pressure in older children. It is more common in kids who:

  • Have completed puberty
  • Someone else in the family has high blood pressure
  • Are overweight or obese
  • Have only mildly high blood pressure

Secondary hypertension — has a known cause. The most common causes of secondary high blood pressure are kidney disease, endocrine disorders, heart disease, and medications. It is more common in kids who:

  • Are younger than 10 years old
  • Blood pressure had previously been normal then there is a sudden increase.
  • Have severe hypertension

What problems can high blood pressure cause ? Effect of High Blood Pressure NHLBI
Severe high blood pressure can cause seizures and heart failure if untreated. High blood pressure is also a major risk factor for high blood pressure as an adult. High blood pressure in adults can contribute to early heart attack or stroke.

Can high blood pressure be treated without medication?
For primary hypertension (see Does all high blood pressure have the same cause? above) there are many things you can do to lower blood pressure. Changing your child’s diet, ensuring regular aerobic exercise, and weight loss (if your child is overweight) can have a large effect on reducing blood pressure without medication!
Reducing the amount of salty foods in your child’s diet is one way to lower their blood pressure. Eating more fresh fruits, vegetables, and low-fat dairy products can also help. Everyone in the family should try to eat healthier foods to encourage your child to continue a healthy diet.
Twenty to thirty minutes of aerobic exercise several times each week can help reduce high blood pressure. Aerobic exercise includes walking, swimming, soccer, basketball, biking, or other activities with a lot of movement. Weight lifting and strength training do not help reduce blood pressure. Watching television and playing video/computer games should be limited to less than two hours a day.
Depending on the severity of your child’s high blood pressure your doctor may decide to start a medication.

When is it right to start blood pressure medication?
Medication choice depends on severity, underlying cause of high blood pressure, and if there are risk factors for heart disease. One or more medications may be started if:

  • Blood pressure is causing headache or seizures
  • Your pediatrician says your child has stage 2 hypertension.
  • Stage 1 hypertension that remains after four to six months of changed diet and exercise.
  • High blood pressure is causing changes to the walls of the heart.
  • Your child has diabetes or high cholesterol.
  • If your child has other risks for heart disease or stroke.

What are the kinds of medications for high blood pressure?
There are several different types of medications used to treat high blood pressure in children. These include thiazide diuretics, angiotensin converting enzyme (ACE) inhibitors, angiotensin receptor blockers (ARBs), calcium channel blockers, and beta-blockers. Short descriptions of each are provided below. For more information, ask your pediatrician any questions or concerns you might have.

Thiazide diuretics- lower fluid volume throughout the body. Thiazide diuretics are safe, effective, and work best effective when used in combination with a low salt diet. The most commonly used thiazide is hydrochlorothiazide. Side effects are uncommon with low doses of thiazide diuretics.

ACE inhibitors/ARBs- both widen blood vessels to lower blood pressure. The most common side effect of ACE inhibitors is a dry cough. Side effects of ARBs are headaches, dizzyness, drowsiness, or abdominal pain. The most commonly used ACE inhibitors in children are enalapril and lisinopril. Losartan is the most common ARB. These drugs should not be used in sexually active girls due to the potential risk of harm to the baby if the girl becomes pregnant.

Beta blockers - decrease the speed and strength of the heart to lower blood pressure. Side effects can include fatigue, dizziness, difficulty sleeping, decreased ability to exercise, rash, and cold hands. Beta blockers should not be used in children with asthma or heart block. Commonly used beta blockers include metoprolol, atenolol, and bisoprolol.

Calcium channel blockers - cause muscle cells to relax and blood vessels to dilate to reduce blood pressure. Side effects of calcium channel blockers can include headache, dizziness, nausea, or swelling of the lower legs or feet.

Hopefully answering these questions has been helpful for you. If you have additional questions you can check out the other websites below or ask your pediatrician.

 


Helpful resources and websites
High Blood Pressure.htm AAP
http://www.mayoclinic.com/health/high-blood-pressure-in-children/DS01102/UPDATEAPP=false&METHOD=print Mayo
http://www.nhlbi.nih.gov/hbp/hbp/effect/effect.htmThe National Heart, Lung, and Blood Institute (NHLBI) Effect of High Blood Pressure on Your Body
http://familydoctor.org/online/famdocen/home/common/heartdisease/treatment/128.printerview.html FD
http://www.thechildrenshospital.org/wellness/info/parents/20233.aspx CCBD - The Children's Hospital Center for Cancer and Blood Disorders
http://kidshealth.org/parent/medical/heart/hypertension.html Kidshealth
http://kidshealth.org/teen/diseases_conditions/heart/hypertension.html for teens
http://www.kidney.org/atoz/atozItem.cfm?id=164 NKF National Kidney Foundation, High Blood Pressure and Chronic Kidney Disease in Children

http://www.cc.nih.gov/ccc/pedweb/pedsstaff/bptable1.PDF NIH Hypertension chart for boys
http://www.cc.nih.gov/ccc/pedweb/pedsstaff/bptable2.PDF NIH Hypertension chart for girls
http://www.pediatrichypertension.org/BPLimitsChart.pdf PH Boys and girls w/ heights and systolic / diastolic.

http://www.nhlbi.nih.gov/health/prof/heart/hbp/hbp_ped.pdf Diagnosis, Evaluation, and Treatment of High Blood Pressure in Children and Adolescents
http://www.uchicagokidshospital.org/online-library/content=P01794 High Blood Pressure in Children and Adolescents
http://www.nlm.nih.gov/medlineplus/ency/article/007329.htm High BP in Infants

http://www.guideline.gov/summary/summary.aspx?doc_id=5530&nbr=003761&string=hypertension+AND+child The fourth report on the diagnosis, evaluation, and treatment of high blood pressure in children and adolescents. National Heart, Lung, and Blood Institute ( U.S.) - Federal Government Agency [ U.S.]. 2004 Aug. 22 pages. NGC:003761
http://www.guideline.gov/summary/summary.aspx?doc_id=9338&nbr=005007&string=hypertension American Association of Clinical Endocrinologists medical guidelines for clinical practice for the diagnosis and treatment of hypertension. American Association of Clinical Endocrinologists - Medical Specialty Society. 2006 Mar-Apr. 30 pages. NGC:005007
http://www.nlm.nih.gov/medlineplus/highbloodpressure.html Medline