SESSION TITLE: Tuesday Medical Student/Resident Case Report Posters SESSION TYPE: Med Student/Res Case Rep Postr PRESENTED ON: 10/22/2019 01:00 PM - 02:00 PM INTRODUCTION: Herpes zoster, also known as shingles, occurs after reactivation of latent varicella-zoster virus in sensory ganglia. There have been few cases reporting intractable singultus as a complication of shingles; however, none has reported a patient such as ours who presented with intractable hiccups along with hematemesis and acute hypoxic and hypercapneic respiratory failure. CASE PRESENTATION: A 53 year old Caucasian male with a history of Hypertension, GERD, and a recent episode of shingles presented to the ED with a 3 day history of worsening persistent singultus. Five days prior, he developed burning back pain followed by an eruption of a herpetiform rash along the T4-T5 dermatome on the right thorax. He was diagnosed with shingles and started on oral valacyclovir. Two days later, he developed progressively intense paroxysmal hiccup attacks with associated dyspnea and retching that was unresponsive to chlorpromazine. In the ED, he denied URI symptoms, recent travel, neurological deficits, trauma, or recent surgeries. On physical exam, he was afebrile and had a vesicular rash overlying the anteroposterior thorax along the T4-T5 dermatome. He had no electrolyte abnormalities. In the ER, he was started on intravenous acyclovir for herpes zoster; however, the hiccups were refractory to haloperidol, metoclopramide, and lorazepam. After several hours, he became encephalopathic, had hematemesis, and was subsequently intubated and placed on mechanical ventilation for acute hypoxic and hypercapneic respiratory failure. The hiccups terminated when he was sedated. Upon extubation the next day, the singultus resolved. The remainder of the hospital course was uneventful and he was discharged after a couple of days. DISCUSSION: Hiccups represent an involuntary spasmodic contraction of the diaphragm followed by rapid closure of the vocal cords involving the reflex arc and are rarely persistent. Potential causes of persistent singultus include infections, metabolic abnormalities, or structural disorders that irritate the branches of the vagus nerve, phrenic nerve, or the CNS. Treatment of hiccups is aimed at symptomatic relief and addressing the underlying cause. Physical maneuvers such as Valsalva can be initiated as empiric treatment. Pharmacological therapies include chlorpromazine, metoclopramide and muscle relaxants. Persistent hiccups due to Herpes Zoster have only been reported in exceptional few cases. In all previously reported cases, none had persistent hiccups associated with hypoxic and hypercapneic respiratory failure and hematemesis secondary to the retching effect of persistent singultus as a result of herpes zoster as which occurred in our patient. CONCLUSIONS: Physicians should closely monitor the respiratory status of patients who present with persistent singultus in the setting of shingles. Reference #1: Brooks WDW. Zoster, hiccup and varicella. Br Med J 1931;2:298-9 Reference #2: Efrati P. Obstinate hiccup as a prodromal symptom in thoracic herpes zoster. Neurology 1956;601-2 Reference #3: Berlin AL, Muhn CY, Billick RC. Hiccups eructation, and other uncommon prodromal manifestations of herpes zoster. J Am Acad Dermatol 2003;49:1121-4 DISCLOSURES: No relevant relationships by Abilio Arrascaeta Llanes, source=Web Response No relevant relationships by Nikita Cadet, source=Web Response No relevant relationships by Edison Gavilanes, source=Web Response No relevant relationships by Hao kee Ho, source=Web Response No relevant relationships by Princess Mark-Adjeli, source=Web Response No relevant relationships by Zubin Tharayil, source=Web Response