| Intrarenal pressures remain low with placement of a dual lumen catheter for retrograde irrigation to induce renal hypothermia. | |
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MedLine Citation:
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PMID: 22581425 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVE: To determine whether placement of a 10 French dual lumen catheter produces a low-pressure collecting system during retrograde irrigation to induce renal hypothermia. Indication for the study is as a potential adjunct for partial nephrectomy. METHODS: Ex vivo porcine kidneys underwent harvest, and a ureteral catheter (either single lumen or dual lumen) was placed in the ureter within the renal pelvis. Pressure measurements (n = 1,080) were recorded at 1-s intervals. Irrigant flow rates were initiated at gravity and subsequently increased at 10 cc/min increments to a maximum of 100 cc/min. RESULTS: During retrograde infusion without a dual lumen catheter, every 10 cc/min rate increase resulted in an 8 cm H(2)O rise in intrarenal pressure. The maximum flow rate obtained was 20 cc/min before urinary extravasation or intrarenal drainage occurred. Maximum pressure obtained before urinary extravasation or collecting system perforation was 16 cm H(2)O. Placement of a dual lumen catheter within the renal pelvis allowed intrarenal pressures to remain less than 5 cm H(2)O (when infusion rates <80 cc/min). The maximum flow rate while maintaining pressures <20 cm H(2)O was 90 cc/min. Flow rates above 100 cc/min resulted in urinary extravasation. The maximal flow rate that is safe for collecting systems with a dual lumen catheter is 80 cc/min, and without a dual lumen catheter rates greater than 20 cc/min resulted in collecting system perforations. CONCLUSION: Using an ex vivo porcine model, application of a 10 French ureteral dual lumen catheter produced adequate retrograde drainage that resulted in low intrarenal pressures at high infusion rates (up to 80 cc/min). |
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Authors:
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J Colli; K Cotter; P Dorsey; G Mitchell; B R Lee |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-5-12 |
Journal Detail:
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Title: International urology and nephrology Volume: - ISSN: 1573-2584 ISO Abbreviation: - Publication Date: 2012 May |
Date Detail:
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Created Date: 2012-5-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0262521 Medline TA: Int Urol Nephrol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Urology, Tulane University School of Medicine, 1430 Tulane Avenue, SL-42, Room 3522, New Orleans, LA, 70112, USA, jcolli.tulane@gmail.com. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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