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Quick Answer. Hiccups resulting from surgery may be caused by a reaction to anesthesia or happen as a result of abdominal surgery or medical procedures such as a tracheotomy, states Healthline. Using a catheter to access the heart, bronchoscopy or using a stent in the esophagus can also result in long-term hiccups.
Many conditions can cause this irritation and result in hiccups, including eating too fast and swallowing air, chewing gum, smoking, eating or drinking too much, strokes, brain tumors, damage to the vagus or phrenic nerve, some medications, noxious fumes, anxiety and stress, and in babies, hiccups may be associated with crying, coughing, or gastroesophageal reflux .