Today's a story about the connection between asthma and gastroesophageal reflux touched someone to the quick. The people demand a logical explanation of how bronchospasm manages to provoke heartburn itself. I explain.
First, with difficulty breathing, pressure in the chest can drop. Intrathoracic. Well, as if we were sucking soda out of a glass through a straw. Have you presented?
Now imagine that the straw is our esophagus, and we draw acid from the stomach through it. The meaning is about the same. If you inhale forcibly, this negative pressure in the chest will pull acid from the stomach into the esophagus. There, it can cause heartburn.
Second, in people with chronic lung disease, the chest is often swollen and the lungs are too full of air. Because of this, the diaphragm does not move well and often pushes down on the stomach. She presses on the stomach like a pimple. As a result, acid is squeezed out of the stomach like from a pimple. Into the esophagus.
Thirdly, there is a not entirely clear mechanism when bronchospasm itself provokes relaxation of the lower esophageal sphincter.
Well, that is, the stomach does not have to try too hard to throw acid into the esophagus. If the muscle mass between the stomach and the esophagus relaxes, then the acid itself will happily splash into the esophagus.
And for some unclear reason, bronchospasm causes the lower esophageal sphincter to relax.
Rumor has it that this is due to some kind of reflex. Mechanoreceptors inside the bronchi or elsewhere in the lungs feel bronchospasm, and bridges something somewhere. As a result, acid is poured into the esophagus.
As far as I understand, no one has studied these nuances in detail, but the fact remains that bronchospasm not only depends on reflux, but also controls reflux itself. They have such a difficult relationship there.
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