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Case Reports
. 2023 Aug 10;23(1):297.
doi: 10.1186/s12883-023-03352-x.

Intractable hiccups after VNS implantation: a case report

Susan Zhang Recio  1 , Myriam Abdennadher  2
Affiliations
Case Reports

Intractable hiccups after VNS implantation: a case report

Susan Zhang Recio et al. BMC Neurol. .

Abstract

Background: Hiccups (medically termed, "singultus"), when intractable, can cause significant medical consequences such as aspiration, malnutrition, and depression, leading to poor quality of life. Several case reports have shown that vagus nerve stimulator (VNS) implantation can help treat central idiopathic intractable hiccups. However, we present a contrary case of a patient who developed intractable singultus following VNS placement for medically refractory epilepsy.

Case presentation: We report a 71-year-old male patient with drug-resistant epilepsy who underwent VNS implantation and developed intractable hiccups shortly thereafter. The hiccups were severe and persistent, such that the patient developed a Mallory-Weiss tear, which required intensive care, invasive intubation and mechanical ventilation, and a prolonged rehabilitation course. Despite multiple therapies including phrenic nerve block and Nissen fundoplication, the patient's hiccups persisted and only stopped once the VNS was permanently deactivated.

Conclusions: Little is known about the incidence of hiccups after VNS implantation. We present one case of hiccups as a direct consequence of VNS implantation. The clinical impact of this report is significant given the relative unfamiliarity of hiccups as an adverse effect of VNS implantation. Neurologists and epileptologists, who present VNS implantation as a surgical option for seizure control to their patients, should be aware of the possibility of singultus development and its significant physical and emotional ramifications.

Keywords: Case report; Epilepsy; Intractable hiccups; Neuromodulation; Singultus; Vagus nerve stimulator.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Pathophysiology of singultus. Central, afferent, and efferent pathways of the hiccup reflex.
See this image and copyright information in PMC

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