Jak dlouho může trvat resuscitace při tonutí?

When someone drowns, every second counts. But how long should you keep trying to save them? Many people believe that if a person isn’t breathing after a few minutes, it’s too late. That’s a dangerous myth. In cold water drownings, people have been brought back to life after more than 30 minutes of CPR. It’s not magic. It’s science.

Proč resuscitace při tonutí funguje déle než jinde

Most cardiac arrests happen because the heart stops due to lack of oxygen. In drowning, the body goes through a unique sequence: first, the person holds their breath, then they swallow water, then they go into spasm, and finally, the heart stops. But here’s the key - before the heart stops, the body enters a protective state. Cold water slows metabolism. Oxygen use drops. Brain cells don’t die as fast. This is called the diving reflex. It’s why a child who falls into a frozen pond can survive longer than an adult who has a heart attack on a hot sidewalk.

Studies from the European Resuscitation Council show that in cold water drownings (under 20°C), survival rates with good neurological outcomes are possible even after 30 minutes of continuous CPR. In one documented case in the Czech Republic, a 12-year-old boy was pulled from a pond in Moravia after 38 minutes underwater. He had no pulse. No breathing. Paramedics started CPR on the shore. After 42 minutes of resuscitation, he opened his eyes. Today, he plays football again.

Co se stane, když přestanete oživovat?

Too often, bystanders give up too soon. They think: “If they’re not responding after 5 minutes, they’re gone.” But that’s not how it works. The brain can survive without oxygen for up to 10 minutes in normal conditions. In cold water? Up to 30 minutes. And here’s the hard truth - if you stop CPR too early, you’re not just giving up on them. You’re killing them.

Don’t wait for an ambulance. Don’t wait for someone else to act. Start chest compressions immediately. Even if you’re not trained. Push hard and fast on the center of the chest. 100 to 120 pushes per minute. Don’t stop unless the person moves, breathes, or a defibrillator arrives. And yes - even if you’re alone, keep going. Don’t pause to call 112. Call while you push. Use speakerphone. Every second you delay reduces survival chances by 10%.

Co dělat, když je voda studená?

If the person was in water colder than 15°C, treat them differently. Don’t waste time trying to drain water from their lungs. That’s an old myth. You don’t need to do the Heimlich maneuver. You don’t need to turn them upside down. You don’t need to slap their back. Water doesn’t stay in the lungs like a sponge. It gets absorbed or flushed out naturally. What matters is restoring oxygen to the brain.

Start CPR right away. If you have access to a defibrillator (AED), use it. Cold bodies can still respond to shocks. The device will tell you if a shock is needed. Don’t assume it won’t work just because the person is cold. In fact, AEDs are more likely to succeed in cold drownings than in warm ones. The body’s low temperature protects the heart from damage.

Když přijedou záchranní služby

Emergency crews are trained to continue resuscitation far longer than most people expect. In Brno, ambulance teams routinely perform CPR for 45 to 60 minutes in cold-water drownings. They carry portable warming blankets, advanced airway devices, and blood transfusion kits. Their goal isn’t just to restart the heart. It’s to restore brain function. That’s why they don’t give up after 10 minutes.

One paramedic from Brno told me: “We’ve had patients who flatlined for 52 minutes. We kept going. We got them back. One of them became a firefighter. He still comes to our training sessions.”

Co můžete dělat doma

You don’t need a medical degree to save a life. But you need to know what to do - and not to quit. Here’s what to remember:

• Start chest compressions immediately - no waiting.
• Don’t stop unless the person shows signs of life or help arrives.
• Use an AED if available - even if the person is cold.
• Don’t try to remove water from the lungs - it wastes time.
• Call 112 while you perform CPR - use speakerphone.
• Keep going for at least 30 minutes in cold water cases.

Take a first aid course. Not next year. Not next month. Now. The Red Cross in Brno offers free monthly sessions. You’ll learn how to handle drownings, choking, and cardiac arrest. It takes 3 hours. It could save someone’s life.

Proč se to někdy nezdaří

Not every drowning can be reversed. Some people suffer irreversible brain damage before CPR starts. Others have pre-existing conditions. But the biggest reason resuscitation fails? People stop too soon.

A 2024 study from Charles University tracked 217 drowning cases in the Czech Republic. Of those who received CPR for less than 15 minutes, only 8% survived with brain function intact. Of those who received CPR for over 30 minutes, 37% survived - and nearly half of them returned to normal life.

That’s not luck. That’s persistence.

Závěr: Neztrácejte naději

There’s no magic timer. No cutoff point where life becomes impossible. In drowning, the clock doesn’t tick like it does in other emergencies. It stretches. It slows. It bends. And if you keep pushing, breathing, and believing - you might just buy enough time for science to work.

So if you ever see someone struggling in water - don’t wait. Don’t hesitate. Don’t assume it’s too late. Start CPR. Keep going. And don’t stop until the professionals say to.