Document Detail

Renal oxygenation during robot-assisted laparoscopic partial nephrectomy: characterization using laparoscopic digital light processing hyperspectral imaging.
MedLine Citation:
PMID:  22973969     Owner:  NLM     Status:  MEDLINE    
PATIENTS AND METHODS: After Institutional Review Board approval, laparoscopic DLP-HSI was performed in consecutive patients undergoing RALPN at our institution. Time trends in relative tissue oxygen saturation (%HbO2) were descriptively analyzed. Associations between %HbO2 and patient age, comorbidities, and estimated glomerular filtration rate (eGFR) were investigated using the Kendall tau test.
RESULTS: Laparoscopic DLP-HSI was performed in 18 patients between May 2011 and February 2012. Median (interquartile range; IQR) age was 55.9 (49-67.5) years. Of the patients, 10/18 (56%) were men and 12/18 (66.7%) had a history of hypertension, diabetes, and/or tobacco use. Median (IQR) %HbO2 before, during, and after ischemia was 60.8% (57.9-68.2%), 53.6% (46.8-55.1%), and 61.5% (54.9-67.6%), respectively. Baseline %HbO2 was inversely associated with preoperative eGFR (τ=-0.38; P=0.036), and eGFR at most recent follow-up (τ=-0.38; P=0.036). Baseline or ischemic %HbO2 did not correlate with hypertension, diabetes, and/or tobacco history. Younger patients (<56 years) had a lower median baseline %HbO2 (P=0.07) and a higher median preoperative eGFR (P=0.038), than their older counterparts.
CONCLUSION: The laparoscopic HSI system successfully characterized dynamic changes in renal oxygenation during RALPN. Intraoperative laparoscopic HSI outcomes have the potential to predict postoperative individual kidney function.
Ephrem O Olweny; Stephen Faddegon; Sara L Best; Neil Jackson; Eleanor F Wehner; Yung K Tan; Karel J Zuzak; Jeffrey A Cadeddu
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Publication Detail:
Type:  Journal Article     Date:  2013-02-14
Journal Detail:
Title:  Journal of endourology / Endourological Society     Volume:  27     ISSN:  1557-900X     ISO Abbreviation:  J. Endourol.     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-03-08     Completed Date:  2013-09-12     Revised Date:  2014-07-31    
Medline Journal Info:
Nlm Unique ID:  8807503     Medline TA:  J Endourol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  265-9     Citation Subset:  IM    
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MeSH Terms
Diagnostic Imaging / instrumentation*
Kidney / pathology*
Middle Aged
Nephrectomy / instrumentation*
Oxygen / metabolism*
Oxyhemoglobins / metabolism
Time Factors
Treatment Outcome
Reg. No./Substance:
0/Oxyhemoglobins; S88TT14065/Oxygen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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