Rhythmic pupillary change in Cheyne-Stokes respiration

Rhythmic pupillary change in Cheyne-Stokes respiration Neurol Sci (2017) 38:1539–1541 DOI 10.1007/s10072-017-2969-7 LETTER TO THE EDITOR 1 1 2 2 Song-Hwa Chae & Eun Hye Oh & Seo-Young Choi & Kwang-Dong Choi & Jae-Hwan Choi Received: 18 January 2017 /Accepted: 19 April 2017 /Published online: 25 April 2017 Springer-Verlag Italia 2017 Introduction admission, her blood pressure was elevated at 240/120 mmHg. Corrected visual acuities were 20/200 in both eyes and fundu- Cheyne-Stokes respiration is an abnormal pattern of respira- scopic examination revealed grade 4 hypertensive retinopathy tion characterized by alternating periods of apnea and hyper- (Fig. 1a). She was diagnosed with malignant hypertension, and pnea with a crescendo-decrescendo pattern [1]. Each episode treated with anti-hypertensive medication. On the following day, may last from 30 s to 2 min. It commonly occurs in patients she became unconscious. She was semi-comatose and both pu- with bilateral cerebral hemispheric lesions or cardiopulmo- pils were equal at 1 mm with reaction to light. Horizontal nary dysfunction. The respiratory cycle is associated with oculocephalic responses were partially impaired bilaterally. the change of serum partial pressure of oxygen and carbon With the deterioration of her consciousness, Cheyne-Stokes res- dioxide (pO and pCO ). Increased pCO during apnea causes pirations appeared with http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Neurological Sciences Springer Journals

Rhythmic pupillary change in Cheyne-Stokes respiration

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Springer Milan
Copyright © 2017 by Springer-Verlag Italia
Medicine & Public Health; Neurology; Neuroradiology; Neurosurgery; Psychiatry
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