As we have seen there is a prancing made ​​in the study of the lungs of rabbits transported to the high level, and they do not reveal changes that indicate an influence of oxygen depletion on that body, which has great importance for us as we what we said in relation to the pathogenesis of altitude sickness, for suggesting that under the new peristasia, regulatory mechanisms, ie compensating, balanced act in the rabbit, which is not true in the guinea pig, which reveals undoubted mode or irritability particularly susceptibility against multiple stimuli including the height triggers significant disruption verified, although in varying degrees, with marked evidence at all, as we have shown in our previous work. This irritability or susceptibility of species (guinea pig caviai spice) conditions as in our concept fundamentally pathogenesis "mountain sickness", as well as in man is the su...

In the study of this interesting disease entity called the "altitude sickness", has already passed the stage of observation and physiological and clinical description, which was as accurately traced by Professor Monge and colleagues in the two forms of this evil: The acute, hitherto the only known, or the "evil mountain" or "mountain sickness" itself, which is nothing but an imbalance, maladjustment or failure of compensatory mechanisms of the body determined by an abrupt change from natural conditions of life on the plains, going to a rarefied atmosphere of height. Chronic, slowly, mismatch, leading to disorders, more or less severe, or the "erythremia Heights" or "disease of the Andes", and known as the "disease Monge".

Since 1866 Czemark was observed that compression of the neurovascular bundle of the neck nerve causes marked bradycardia which he attributed to a direct stimulation of the vagus, has been referring to this concept a series of vegetative phenomena in medical and surgical diseases.