Usually initiated by gastric distention from food, carbonated beverage, or air
Also known as Singultus<unk> bout: <48 hours
Persistent<unk> : 48 hours to 1 month
Intractable<unk> : >1 month
Hiccups
Central nervous system disorders
Dysphagia
Vascular
Catatonia
Ischemic/hemorrhagic stroke
Insomnia
AV malformations