Evidence map›Paper›PMID 25708900›Full record

ArticleDigestive diseases and sciences2015

Volatile Organic Compounds in Urine for Noninvasive Diagnosis of Malignant Biliary Strictures: A Pilot Study.

Udayakumar Navaneethan, Mansour A Parsi, Dennisdhilak Lourdusamy, David Grove, Madhusudhan R Sanaka, Jeffrey P Hammel, John J Vargo, Raed A Dweik

Abstract read
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Article in Digestive diseases and sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.5field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 34 citations in OpenAlex.

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  9. Recent Development on Determination of Low-LevelMolecules (Basel, Switzerland) · 2022
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  19. Article
  20. Risk and Surveillance of Cancers in Primary Biliary Tract Disease.Gastroenterology research and practice · 2016
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Udayakumar NavaneethanDepartment of Gastroenterology and Hepatology, Digestive Disease Institute, Cleveland, OH, USA, udhaykumar81@gmail.com.
Mansour A Parsi
Dennisdhilak Lourdusamy
David Grove
Madhusudhan R Sanaka
Jeffrey P Hammel
John J Vargo
Raed A Dweik
Digestive Care (United States) · USCleveland Clinic Lerner College of Medicine · US

Funding

Clinical and Translational Science Collaborative of ClevelandUL1TR000439 · NCATS · CASE WESTERN RESERVE UNIVERSITY · PI KONSTAN, MICHAEL W. · 2012 to 2016
$50.0M
Targeting pathological hyaluronan matricesP01HL103453 · NHLBI · CLEVELAND CLINIC LERNER COM-CWRU · PI REIZES, OFER · 2011 to 2020
$26.8M
Tissue Processing and Cell Culture COreP01HL081064 · NHLBI · CLEVELAND CLINIC LERNER COM-CWRU · PI ARONICA, MARK A · 2006 to 2019
$17.8M
VERSICAN PROTEOLYSIS AND REGULATION OF VASCULAR SMOOTH MUSCLEP01HL107147 · NHLBI · CLEVELAND CLINIC LERNER COM-CWRU · PI LAUER, MARK E · 2011 to 2017
$16.1M
Airway redox biochemistry as a deteriminant of asthma phenotype during adolescen*U10HL109250 · NHLBI · UNIVERSITY OF VIRGINIA · PI ERZURUM, SERPIL C., GASTON, BENJAMIN · 2011 to 2016
$4.2M
Laser spectroscopic instrumentation for isotopic sensing of biogenic Nitric OxideR21RR026231 · NCRR · PRINCETON UNIVERSITY · PI WYSOCKI, GERARD · 2010 to 2011
$380k
NCATS NIH HHS UL1TR 000439-06NCRR NIH HHS RR026231NHLBI NIH HHS HL081064NHLBI NIH HHS HL103453NHLBI NIH HHS HL107147NHLBI NIH HHS HL109250
6 · The paper itself

Abstract

backgroundThe use of volatile organic compounds (VOCs) in bile was recently studied and appeared promising for diagnosis of malignancy. Noninvasive diagnosis of malignant biliary strictures by using VOCs in urine has not been studied.

aimTo identify potential VOCs in urine to diagnose malignant biliary strictures.

methodsIn this prospective cross-sectional study, urine was obtained immediately prior to ERCP from consecutive patients with biliary strictures. Selected-ion flow-tube mass spectrometry was used to analyze the concentration of VOCs in urine samples.

resultsFifty-four patients with biliary strictures were enrolled. Fifteen patients had malignant stricture [six cholangiocarcinoma (CCA) and nine pancreatic cancer], and 39 patients had benign strictures [10 primary sclerosing cholangitis (PSC) and 29 with benign biliary conditions including chronic pancreatitis and papillary stenosis]. The concentration of several compounds (ethanol and 2-propanol) was significantly different in patients with malignant compared with benign biliary strictures (p < 0.05). Using receiver operating characteristic curve analysis, we developed a model for the diagnosis of malignant biliary strictures adjusted for age and gender based on VOC levels of 2-propranol, carbon disulfide, and trimethyl amine (TMA). The model [-2.4191 * log(2-propanol) + 1.1617 * log(TMA) - 1.2172 * log(carbon disulfide)] ≥ 7.73 identified the patients with malignant biliary stricture [area under the curve (AUC = 0.83)], with 93.3 % sensitivity and 61.5 % specificity (p = 0.009). Comparing patients with CCA and PSC, the model [38.864 * log(ethane) - 3.989 * log(1-octene)] ≤ 169.9 could identify CCA with 80 % sensitivity and 100 % specificity (AUC = 0.9).

conclusionsMeasurement of VOCs in urine may diagnose malignant biliary strictures noninvasively.

Indexed as

Bile Duct NeoplasmsBile DuctsBile Ducts, IntrahepaticCholangiocarcinomaCholangitis, SclerosingConstriction, PathologicCross-Sectional StudiesFemaleHumansMalePancreatic NeoplasmsVolatile Organic CompoundsVolatile Organic Compounds

Identifiers

PMID25708900
OpenAlexW2088883332

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.