Dear friend, welcome to HCM!
A tracheostomy and gastrostomy feeding tube
are inserted to facilitate prolonged ventilation.
Please ask the need for prolonged ventilation plan and if he has diaphragmatic paralysis.
At what level was the spine affected?
Has he got a pneumonia?
Sputum (Phlegm) can not cause sexual dysfunction
and diapgragm weakness.
He must be on partial ventilator modes for respiratory insufficiency
You could ask if ventilation is needed for infected lungs or for respiratory muscle dysfunction
secondary to trauma.
Take care and please keep me informed of your progress.
I hope to have answered your query satisfactorily.