| Evaluation of the hemodynamics of rectal varices by endoscopic ultrasonography. | |
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MedLine Citation:
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PMID: 16868808 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: The usefulness of endoscopic color Doppler ultrasonography (ECDUS) for evaluating hemodynamics is examined in 12 cases of rectal varices. We also evaluate the safety of endoscopic therapies in rectal variceal patients. METHODS: ECDUS was performed for 12 rectal variceal patients with a 7.5-MHz convex-type Pentax FG-32UA system. A Hitachi EUB 525 was used for the display. ECDUS provides a color display of blood flow, and calculates the velocity using a fast-Fourier transform analysis. We monitored the color flow images and measured blood flow velocity in rectal varices. Then, we evaluated the velocity of 350 F2-type esophageal varices via ECDUS, and compared the velocities between rectal varices and esophageal varices. RESULTS: Color flow images of rectal varices and of inflow vessels to rectal varices were obtained in all 12 patients with ECDUS. The mean velocity of F2-type rectal varices was 5.5 +/- 1.3 cm/s (n = 12), while the mean velocity of F2 esophageal varices was 8.4 +/- 3.1 cm/s (range, 4.5-12.5 cm/s) (n = 350) via ECDUS. The velocities in rectal varices were lower than those in esophageal varices. Endoscopic injection sclerotherapy (EIS) was successfully performed in five red-color-sign-positive rectal variceal patients having a mean velocity 5.4 +/- 1.1 cm/s. CONCLUSIONS: The velocities of rectal varices were lower than those of esophageal varices. Evaluation of the hemodynamics of rectal varices is important for determining the appropriate therapeutic option. EIS is an effective therapy in cases of slow variceal flow. ECDUS is a necessary tool for effective and safe EIS for rectal varices. |
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Authors:
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Takahiro Sato; Katsu Yamazaki; Jun Akaike |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of gastroenterology Volume: 41 ISSN: 0944-1174 ISO Abbreviation: J. Gastroenterol. Publication Date: 2006 Jun |
Date Detail:
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Created Date: 2006-07-26 Completed Date: 2007-02-20 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9430794 Medline TA: J Gastroenterol Country: Japan |
Other Details:
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Languages: eng Pagination: 588-92 Citation Subset: IM |
Affiliation:
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Department of Gastroenterology, Sapporo Kosei General Hospital, Kita 3 Higashi 8, Sapporo, 060-0033, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Blood Flow Velocity Endosonography* Female Humans Male Middle Aged Rectum / blood supply* Varicose Veins / physiopathology*, ultrasonography* |
| Comments/Corrections | |
Comment In:
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J Gastroenterol. 2006 Jun;41(6):611-2
[PMID:
16868815
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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