| Doppler measurement of blood flow velocities in extraocular orbital vessels in patients with obstructive sleep apnea syndrome. | |
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MedLine Citation:
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PMID: 12767020 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: We used color Doppler sonography to determine blood flow velocities in the extraocular orbital vessels of patients with obstructive sleep apnea syndrome (OSAS) and compared the results with those of healthy control subjects without OSAS. METHODS: Patients with OSAS were classified according to the apnea-hypopnea index (AHI) as having mild OSAS (AHI < 20) or severe OSAS (AHI > or = 20). The peak systolic velocity (PSV), end-diastolic velocity (EDV), and resistance index were measured in the ophthalmic artery (OA), central retinal artery (CRA), lateral short posterior ciliary artery, and medial short posterior ciliary artery using color Doppler sonography. Only 1 eye was measured in each study participant, and right and left eyes were chosen randomly. The blood flow velocities of patients with OSAS and those of control subjects were compared with the Kruskal-Wallis test and Wilcoxon's rank-sum test. RESULTS: The study comprised 30 patients (15 with mild and 15 with severe OSAS) and 20 healthy control subjects. Blood flow velocities were higher in most measured vessels in patients with OSAS than they were in the control subjects. Among patients with mild OSAS, the PSVs and EDVs in the posterior ciliary arteries were statistically significantly higher than those of the control group (p < 0.05), but those in the OA and CRA did not differ significantly between the mild OSAS group and the control group (p > 0.05). However, as the severity of OSAS increased, the PSVs and EDVs of the OA and CRA were also affected (p < 0.05). CONCLUSIONS: Color Doppler sonographic measurements of blood flow parameters in the orbital vessels may differ significantly between patients with OSAS and those without the syndrome. Therefore, OSAS should be considered in addition to other conditions when interpreting the results of color Doppler sonography of the extraocular orbital vessels if the clinical history points toward such a diagnosis. |
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Authors:
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C Zuhal Erdem; Remzi Altin; L Oktay Erdem; Sebnem Kargi; Levent Kart; Fikret Cinar; Ferruh Ayoglu |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of clinical ultrasound : JCU Volume: 31 ISSN: 0091-2751 ISO Abbreviation: J Clin Ultrasound Publication Date: 2003 Jun |
Date Detail:
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Created Date: 2003-05-26 Completed Date: 2003-09-04 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0401663 Medline TA: J Clin Ultrasound Country: United States |
Other Details:
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Languages: eng Pagination: 250-7 Citation Subset: IM |
Copyright Information:
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Copyright 2003 Wiley Periodicals, Inc. |
Affiliation:
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Department of Radiology, Zonguldak Karaelmas University School of Medicine, Kozlu 67600, Zonguldak, Turkey. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Female Humans Male Middle Aged Orbit / blood supply*, ultrasonography* Prospective Studies Regional Blood Flow Sleep Apnea, Obstructive / complications* Ultrasonography, Doppler, Color* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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