Termination of idiopathic persistent singultus (hiccup) with suprasupramaximal inspiration

Hiccup Relief Using Active Prolonged Inspiration

Background Hiccups are a common physiologic reflex resulting from intermittent and involuntary spasmodic contraction of the diaphragm and intercostal muscles. While most cases are self-limited, lasting less than 48 hours, rare pathologies may result in prolonged symptoms. Hiccups can be disruptive and uncomfortable, leading many to seek management strategies using common home remedies. Few methods for terminating hiccups have been published in the scientific literature. We report the efficacy of the Hiccup relief using Active Prolonged Inspiration (HAPI) technique, which combines phrenic and vagal nerve stimulation with transient hypercapnia for hiccup relief. Methods Twenty patients with self-limited hiccups and one patient with prolonged hiccups were successful in eliminating hiccups using HAPI. In this method, patients are instructed to inspire maximally. Once at the peak of inspiration, they continue to attempt to inspire with an open glottis for a total of 30 seconds. This is followed by a slow expiration and resumption of normal respiration. Results In all cases, patients reported immediate hiccup relief. Conclusion These findings suggest the HAPI technique is a simple and viable method for hiccup relief. Further studies are needed to validate effectiveness.

Persistent hiccups (singultus) as the presenting symptom of medullary cavernoma

BACKGROUND

Singultus (hiccup) is common, usually transient, and only rarely indicative of disease. If it persists, it can be highly bothersome, potentially interfering with sleep and leading to depression and physical exhaustion. It is presumed to be due to a disturbance in a reflex arc that includes the brainstem, the phrenic nerve, the vagus nerve, and the sympathetic chain. It can be induced by mechanical irritation (e.g., gastric distention), metabolic or toxic irritation (e.g., alcohol, cigarette smoke), infectious processes, emotional disturbances, and, rarely, neurological diseases.

CASE DESCRIPTION

The patient presented with persistent singultus (by definition, singultus lasting more than 48 hours). Initial diagnostic tests failed to reveal the cause, and the hiccups failed to respond to medications and other attempted treatments. Finally, an imaging study revealed a medullary cavernoma. After neurosurgical resection of this lesion, the patient was asymptomatic and returned to work.

CONCLUSION

This case shows that singultus, though it may seem trivial, deserves to be taken seriously, particularly when it persists and does not respond to medications. Its cause can be discovered in timely fashion by means of a thorough clinical history, physical examination, and ancillary testing.

Hiccup and neurosurgeons: a report of 4 rare dorsal medullary compressive pathologies and review of the literature

OBJECTIVE

The aim of this study was to present 4 rare cases of medullary compressive lesions presenting with IH, to discuss the indications for neurosurgical decompression in such cases, and to review the possible etiologies of IH briefly.

METHODS

The reported cases include (1) a 19-year-old adolescent boy and a 21-year-old man with Chiari I malformation and cervical syrinx compressing or tightening the cervico-medullary junction; (2) a 35-year-old man with ependymoma extending from the lower half of the fourth ventricle to C1/C2 junction and compressing this part of the medulla; and (3) a 16-year-old adolescent boy who was referred to the emergency department in severe distress because of IH, occurring as a result of a distal PICA aneurysm located on the floor of the lower triangle of the fourth ventricle.

RESULTS

Surgical decompression in all the cases was successful in withholding the hiccups.

CONCLUSION

The dorsal medullary area is not an unusual location for genesis of hiccup. When encountering a case of IH, appropriate CNS imaging studies should be included in the evaluation protocol.