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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.
Hiccups often occur without any obvious trigger, although short episodes have been linked with: 1  drinking alcohol. 2  smoking. 3  having a bloated stomach. 4  eating too quickly or eating spicy foods. 5  drinking hot or fizzy drinks. 6  emotions, such as stress, fear or excitement.