We did a lot of research to decide how much helium to put in the balloon. It varies depending on the size of your balloon. Each cubic foot of helium can lift 28 grams. Each pound of free lift would mean 300 feet per minute of ascent rate.
Nerve damage to cutaneous sensory nerve occurs, but these grow back. Damage to the marginal mandibular nerve can occur as well, this causes a distorted smile, which usually resolves in a few months. Most importantly is that lipo of the chin is very safe. Good luck, dr b. ...Read more.
Compression of the vestibular nerve can cause attacks of spinning or non-spinning vertigo: vestibular paroxysmia. Compression of the trochlear nerve is characterized by attacks of monocular oscillopsia: superior oblique myokymia. Damage to ocular motor nerves due to local radiation or rarely neurovascular compression can also lead to oscillopsia and double vision precipitated by sustained excentric gaze: ocular neuromyotonia.