Pulmonary Hypertension

Pulmonary hypertension (PH) is high blood pressure in the arteries of the lungs. This makes it harder for blood to flow to the lungs.

What Is Pulmonary Hypertension?

Pulmonary hypertension is a rare condition when the blood pressure in the lungs (pulmonary artery system) is higher than normal. The Pulmonary Hypertension Program at Nationwide Children's Hospital is dedicated to delivering top-quality care and advanced therapy to patients with this diagnosis.

Normal blood pressure in the lungs is much lower and much more difficult to measure compared to the body's blood pressure measured in the arm. Normal blood pressure in the lungs is 15 -25 mmHg, or about 1/5th the body’s blood pressure.

Pulmonary hypertension (PH) is a disease affecting the blood vessels in the lungs. The blood vessels that carry blood to the lungs come from the right side of the heart (shown in blue). In pulmonary hypertension, the vessels are thickened and constricted, creating high pressure in the lungs. This creates extra work for the right side of the heart and it becomes harder to pump blood to the lungs. Over time, this can cause the right side of the heart to become enlarged and weak, leading to heart failure.

Illustration of Pulmonary Hypertension

What Causes Pulmonary Hypertension?

There are many conditions that can cause pulmonary hypertension (PH). These can be present as a newborn baby or develop later in life. The following are some of the conditions with examples listed.

Causes What that means
Congenital heart disease (CHD) Born with a heart condition like atrial septal defect, ventricle septal defect or an unrepaired heart condition
Persistent pulmonary hypertension (PPHN) The pressure in a newborn baby’s lungs doesn’t change after they are born. This makes it hard for the baby to breathe.
Lung disease or trouble (disordered) breathing

Abnormal lungs or difficulty breathing

Pulmonary vein stenosis Blood vessels that carry blood from the lungs back to the heart are narrow
Genetic or inherited from family

PH caused by a genetic change

  • This may or may not run in the family
Unknown causes

Patient does not fit other causes of PH

  • Whole body disease that results in PH with unknown cause

What Are the Signs and Symptoms of Pulmonary Hypertension?

The signs and symptoms of pulmonary hypertension vary based on age. Some of them include:

  • Rapid pulse or palpitations of the heart
  • Shortness of breath
  • Unable to keep up with peers
  • Unable to gain weight

How Is Pulmonary Hypertension Tested, Monitored and Diagnosed?

There are many tests that can be used to help diagnose pulmonary hypertension. Some of the more common ones the PH team may recommend initially are:

Test Purpose of Test

Blood work

  • To look at strain on heart
  • To rule out other causes

Chest CT (computed tomography)

  • To look at lung tissue and airways
  • To look at blood vessels in the lungs
Chest X-ray
  • To look for lung problems
  • To see size of heart
Echocardiogram –  ultrasound of heart
  • To see how well the heart is pumping (function of heart)
  • To estimate blood pressure of the vessels in the lungs
  • To look for narrowing in pulmonary veins

 

Additional testing may include:
Test Purpose of Test
ENT/Pulmonary bronchoscopy

Procedure that requires sedation to look at airway with a camera

  • To look at airway structures
Heart (cardiac) catheterization

An invasive procedure performed in the catheterization lab (specialized operating room). This test needs sedation.

  • To confirm pulmonary hypertension or before starting or adding PH medication
  • To know the pressures in the lung blood vessels (most accurate way)
Lung perfusion scan

Test done in radiology with IV contrast

  • To estmate how much blood is going to each lung
  • To look for blood clots in the lungs
Sleep study

Overnight hospital monitoring of breathing and oxygen saturations

  • To evaluate for abnormal breathing while sleeping

How Is Pulmonary Hypertension Treated?

Nationwide Children's offers a team of experts focused on treating children with pulmonary hypertension. Finding PH early is very important. There is no cure for PH, but medicines and breathing therapies can help keep the heart and lungs as healthy as possible.

  • Medicine – Used to help lower blood pressure in the lungs. These medicines may be given:
    • By mouth (oral)
    • Breathed in (inhaled) directly to the lungs
    • Through a feeding tube
    • Into the skin by a special pump
  • Nitric oxide – Breathed into the lungs to relax the blood vessels. This may be needed if your child is in the intensive care unit (ICU). It’s not a treatment you can do at home.
  • Oxygen therapy – Helps relax the blood vessels in the lungs so that may help improve oxygen saturations and fatigue

Other treatments may include:

  • Avoiding lung damage: preventing aspiration and infection
  • Breathing machine (ventilator) – Used to help with breathing by wearing a mask on the face or breathing into a tube in the airway.
  • Diuretics – Medicines that help your child pee (urinate) extra fluid that’s in their body.
  • Nutrition – Your child needs the right number of calories and protein to help their lungs grow and heal.

When Should I Call the Doctor?

Call your child’s heart doctor (cardiologist) if they have:

  • Trouble breathing
  • Irregular heart rate
  • Fainting
  • Chest pain
  • Rapid heart beat
  • Poor appetite

When to Call 911

Call 911 for emergency help if your child has any of these signs:

  • Has a seizure
  • Is gasping, wheezing or grunting
  • Coughs up blood
  • Skin color changes to grayish blue or is very pale
  • Hard to wake up (lethargic), acts confused or doesn’t know what they’re doing

Why Choose Nationwide Children's?

Nationwide Children's is one of the few program in the U.S. that offers a pediatric Pulmonary Hypertension Program. As the leader in pediatric care, we also offer all cardiology services, cardiothoracic surgery, and everything else you would expect to find at a nationally-renowned heart center. Whether your child is newly diagnosed with PH, or you have been living with a congenital heart condition for many years, our pediatric experts offer specialized patient care and support for the entire family. Nationwide Children's Hospital is ranked by U.S. News & World Report for Cardiology and Heart Surgery.

Leading the Way to New Treatments and Outcomes Through Clinical Research

Clinical care and research work together. This helps scientists and doctors to find new treatments and therapies. Clinical studies (also called clinical trials) will continue to become more common in daily care at Nationwide Children's. Clinical studies help doctors learn more about conditions and treatment.

This means you might hear about a clinical study that your child might be able to join. This does not mean that your child has to join a study. You always have the choice about whether or not to join a study.

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