What should a person do if he has a complete ventricular ventricular heart block? Put a pacemaker. And if the patient weighs 541g? The answer is to take an external pacemaker, do an operation, and save the child's life. The rest is under the cut. When Taylor Gardner was born (ahead of time), she weighed 541g. The girl had heart problems - it beat with a frequency of 40-50 beats per minute, instead of 140-150 beats / min needed by her. In such cases, a pacemaker is installed, but the fact is that they have never done this to a child with a weight less than 750g. Australian surgeons had to show what they can do :) In the photo you see a small patient and a pacemaker of the same size. When the girl grows up to at least 1.5-2 kg, she will be able to implant an internal pacemaker. Now try to imagine the size of this girl's heart, and how the surgeons installed a pacemaker electrode on it.
Why did I write this post? Probably to remind once again that sometimes even what is impossible to do in principle can be done.