Evidence map›Paper›PMID 27042176›Full record

ArticleAdvances in urology2016

Ultrasound Guidance for Renal Tract Access and Dilation Reduces Radiation Exposure during Percutaneous Nephrolithotomy.

Thomas Chi, Selma Masic, Jianxing Li, Manint Usawachintachit

Open access · goldAbstract read
In one paragraph

Article in Advances in urology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 3 pooled it
5.4field-weighted citation impact, top 4% 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

26 citing papers in PubMed, 3 syntheses or guidelines pooled it, 50 citations in OpenAlex.

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  8. [Totally ultrasound guided percutaneous nephrolithotomy: An efficient and safe technique].Revista medica del Instituto Mexicano del Seguro Social · 2025
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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

4 authors at 3 institutions in 3 countries.

Thomas ChiDepartment of Urology, University of California, San Francisco, 400 Parnassus Avenue, Suite A610, P.O. Box 0330, San Francisco, CA 94143, USA.ORCID 0000-0003-2127-2673
Selma MasicDepartment of Urology, University of California, San Francisco, 400 Parnassus Avenue, Suite A610, P.O. Box 0330, San Francisco, CA 94143, USA.ORCID 0000-0003-2389-0459
Jianxing LiDepartment of Urology, Tsinghua Changgung Hospital, Beijing 100034, China.ORCID 0000-0003-0951-0819
Manint UsawachintachitDepartment of Urology, University of California, San Francisco, 400 Parnassus Avenue, Suite A610, P.O. Box 0330, San Francisco, CA 94143, USA; Division of Urology, Department of Surgery, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Rama IV Road, Patumwan, Bangkok 10330, Thailand.ORCID 0000-0003-1198-0086
University of California, San Francisco · USBeijing Tsinghua Chang Gung Hospital · CNChulalongkorn University · TH

Funding

UCSF KURe Career Development ProgramK12DK083021 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BASKIN, LAURENCE, CARROLL, PETER R · 2008 to 2017
$5.9M
NIDDK NIH HHS K12 DK083021
6 · The paper itself

Abstract

Purposes. To present our series of 38 prone percutaneous nephrolithotomy procedures performed with renal access and tract dilation purely under ultrasound guidance and describe the benefits and challenges accompanying this approach. Methods. Thirty-eight consecutive patients presenting for percutaneous nephrolithotomy for renal stone removal were included in this prospective cohort study. Ultrasonographic imaging in the prone position was used to obtain percutaneous renal access and guide tract dilation. Fluoroscopic screening was used only for nephrostomy tube placement. Preoperative, intraoperative, and postoperative procedural and patient data were collected for analysis. Results. Mean age of patients was 52.7 ± 17.2 years. Forty-five percent of patients were male with mean BMI of 26.1 ± 7.3 and mean stone size of 27.2 ± 17.6 millimeters. Renal puncture was performed successfully with ultrasonographic guidance in all cases with mean puncture time of 135.4 ± 132.5 seconds. Mean dilation time was 11.5 ± 3.8 min and mean stone fragmentation time was 37.5 ± 29.0 min. Mean total operative time was 129.3 ± 41.1. No patients experienced any significant immediate postoperative complication. All patients were rendered stone-free and no additional secondary procedures were required. Conclusions. Ultrasound guidance for renal access and tract dilation in prone percutaneous nephrolithotomy is a feasible and effective technique. It can be performed safely with significantly reduced fluoroscopic radiation exposure to the patient, surgeon, and intraoperative personnel.

Identifiers

PMID27042176
PMCPMC4793096
OpenAlexW2292970870

What OpenQuestion holds

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LicenceCC BY
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.