| The feasibility of measuring renal blood flow using transesophageal echocardiography in patients undergoing cardiac surgery. | |
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MedLine Citation:
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PMID: 19372314 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: There is no reliable method to monitor renal blood flow intraoperatively. In this study, we evaluated the feasibility and reproducibility of left renal blood flow measurements using transesophageal echocardiography during cardiac surgery. METHODS: In this prospective noninterventional study, left renal blood flow was measured with transesophageal echocardiography during three time points (pre-, intra-, and postcardiopulmonary bypass) in 60 patients undergoing cardiac surgery. Sonograms from 6 subjects were interpreted by 2 blinded independent assessors at the time of acquisition and 6 mo later. Interobserver and intraobserver reproducibility were quantified by calculating variability and intraclass correlation coefficients. RESULTS: Patients with Doppler angles of >30 degrees (20 of 60 subjects) were eliminated from renal blood flow measurements. Left renal blood flow was successfully measured and analyzed in 36 of 60 (60%) subjects. Both interobserver and intraobserver variability were <10%. Interobserver and intraobserver reproducibility in left renal blood flow measurements were good to excellent (intraclass correlation coefficients 0.604-0.999). Left renal arterial luminal diameter for the pre, intra, and postcardiopulmonary bypass phases, ranged from 3.8 to 4.1 mm, renal arterial velocity from 25 to 35 cm/s, and left renal blood flow from 192 to 299 mL/min. CONCLUSION: In patients undergoing cardiac surgery, it was feasible in 60% of the subjects to measure left renal blood flow using intraoperative transesophageal echocardiography. The interobserver and intraobserver reproducibility of renal blood flow measurements was good to excellent. |
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Authors:
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Ping-Liang Yang; David T Wong; Shuang-Bo Dai; Hai-Bo Song; Ling Ye; Jin Liu; Bin Liu |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Anesthesia and analgesia Volume: 108 ISSN: 1526-7598 ISO Abbreviation: Anesth. Analg. Publication Date: 2009 May |
Date Detail:
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Created Date: 2009-04-17 Completed Date: 2009-04-30 Revised Date: 2009-07-17 |
Medline Journal Info:
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Nlm Unique ID: 1310650 Medline TA: Anesth Analg Country: United States |
Other Details:
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Languages: eng Pagination: 1418-24 Citation Subset: AIM; IM |
Affiliation:
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Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Cardiac Surgical Procedures* / adverse effects Cardiopulmonary Bypass* / adverse effects Echocardiography, Doppler, Color* Echocardiography, Transesophageal* Feasibility Studies Female Humans Kidney Diseases / etiology, physiopathology, prevention & control, ultrasonography* Male Middle Aged Monitoring, Intraoperative / methods* Observer Variation Predictive Value of Tests Prospective Studies Renal Circulation* Reproducibility of Results Young Adult |
| Comments/Corrections | |
Comment In:
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Anesth Analg. 2009 May;108(5):1371-6
[PMID:
19372308
]
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Erratum In:
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Anesth Analg. 2009 Aug;109(2):622 |
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