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Medical emergency · Treatable

It's not anxiety or fatigueIt's a clot in your lung.

If you suddenly become short of breath after a long trip, surgery or prolonged bed rest: don't wait. Every hour counts.

90%
Come from the legs
3 months
Minimum anticoagulation
It heals
With treatment
10×
More deadly without treatment.
With anticoagulation, the risk drops dramatically.
Sudden shortness of breath
Chest pain when breathing
Racing heart with no cause

How it feels

4 signs that appear all at once

What sets pulmonary embolism apart is that it all starts out of nowhere, with no apparent reason. If you have 2 or more, don't wait.

Shortness of breath

Suddenly, without having done anything

Chest pain

Sharp, worse when breathing

Racing heart

You feel it without any effort

Coughing up blood

Even just a little

Who is most at risk

There is almost always a trigger

Embolism rarely appears "out of the blue." In these situations, the risk multiplies:

Recent surgery

Especially hip, knee or abdominal surgery.

Long trip or bed rest

Flights over 6 h or several days in bed.

Cancer or hormones

Active tumors, contraceptives, pregnancy.

Clot in the leg

A swollen, red and painful calf.

Why it matters

Treated in time, it changes everything

What matters most is getting there sooner. This is what changes between treating it and leaving it untreated:

With anticoagulation
<5%
mortality when treated in time
  • The clot is reabsorbed
  • You return to your life in weeks
  • Low risk of recurrence
  • Lungs and heart intact
Without treatment
~30%
mortality if it goes unnoticed
When it's an emergency

Signs that say "go to the ER now"

If any of these appears, don't wait: call 911 or go straight to the emergency room

Go to the ER if you have:

  • Sudden shortness of breath at rest
  • Severe chest pain when breathing
  • Coughing up blood
  • Fainting or near-fainting
  • A very fast pulse with no cause
  • A swollen, warm leg
Post-embolism follow-up

Already out of the hospital and need follow-up?

  • Adjusting and timing your anticoagulant
  • Ruling out chronic pulmonary hypertension
  • Finding the cause that triggered it
  • A plan to keep it from happening again
3-6 mo
When we decide whether you stay on anticoagulation

Specialized follow-up

A well-treated embolism doesn't have to come back

Tailored anticoagulation and prevention of recurrences.

Book my appointment

Frequently asked questions

What I'm asked the most about pulmonary embolism.

What exactly is a pulmonary embolism?

It is a clot that gets lodged in an artery of the lung. It almost always formed first in a deep vein of the leg and traveled up there. It is an emergency: it requires prompt anticoagulation to prevent it from growing or more clots from appearing.

What are the symptoms?

Sudden shortness of breath, chest pain that worsens with breathing, a racing heart and sometimes coughing up blood or fainting. Suspect it even more if it happened after a long trip, surgery or several days in bed. Go to the emergency room.

How long does treatment last?

The anticoagulant lasts a minimum of 3 months. If the embolism was triggered by something reversible (surgery, immobilization), it is usually stopped at 3-6 months. If it was spontaneous or you've already had another, it may be indefinite. We decide by balancing recurrence vs. bleeding.

How do I book an appointment?

Message me directly on WhatsApp at 55 9170 8334 or book online with the appointment button. The later follow-up can be done by teleconsultation when all that's needed is to review studies and adjust the anticoagulant.

Find me here

Hospital Santa Coleta

Saturnino Herrán 59
San José Insurgentes, Benito Juárez
03900 Mexico City, CDMX

Office hours

Monday to Friday: 4:00 to 8:30 PM

Saturday and Sunday: 12:00 to 4:00 PM

By appointment

Important medical notice: The information on this site is educational and informational in nature, prepared by Dr. William César Lara Vázquez, and does not replace consultation, diagnosis or treatment with a medical professional. If you have any respiratory symptom, see your doctor or go to the emergency department. In a respiratory emergency, call 911.