Evidence map›Paper›PMID 32398995›Full record

ArticleCurrent urology2020

Comparative Study Assessing Postoperative Renal Loss Using Two Different Partial Nephrectomy Techniques: Off-Clamp versus Standard On-Clamp Surgery.

Shahid Aquil, Daniel Olvera-Posada, Roshan Navaratnam, David Mikhail, Max A Levine, Patrick P Luke, Alp Sener

Erratum issuedAbstract read
In one paragraph

Article in Current urology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
  2. Laparoscopic Partial Nephrectomy: Off-Clamp Versus on Clamp.Asian Pacific journal of cancer prevention : APJCP · 2022
    Article
  3. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Shahid AquilDivision of Urology, Department of Surgery, London, ON, Canada.
Daniel Olvera-PosadaDivision of Urology, Department of Surgery, London, ON, Canada.
Roshan NavaratnamDepartment of Microbiology and Immunology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada.
David MikhailDivision of Urology, Department of Surgery, London, ON, Canada.
Max A LevineDivision of Urology, Department of Surgery, London, ON, Canada.
Patrick P LukeDivision of Urology, Department of Surgery, London, ON, Canada.
Alp SenerDivision of Urology, Department of Surgery, London, ON, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate a case-matched study comparing postoperative renal function using two surgical techniques: an off-clamp partial nephrectomy (PN) with the aid of the Altrus® device and a standard on-clamp laparoscopic PN. MATERIAL AND

methodsA total of 36 patients underwent PN. Eighteen had the off-clamp technique and 18 had the standard laparoscopic on-clamp PN. Demographic, clinical, radiological, and perioperative data were collected for analysis. An emphasis on renal function was made by analyzing both the perioperative and follow-up with estimated glomerular filtration rate and MAG3.

resultsThe median values did not signifcantly differ for age, Charlson Comorbidity Index, and hospital stay in the off-clamp versus on-clamp PN [62.5 (interquartile range, IQR 11) vs. 60 (IQR 16) years, 4 (IQR 2) vs. 5 (IQR 2) and 5 (IQR 1) vs. 4 (IQR 2) days], respectively. The median diameter of the tumors was 33 (IQR 23) versus 41 (IQR 28) mm (p = 0.63), with median R.E.N.A.L. nephrometry scores of 7 (IQR 2) versus 7 (IQR 2) (p = 0.33). There was greater blood loss in the Altrus® (375 vs. 200 ml, p = 0.037). The clamp time in the on-clamp group was 30 (IQR 6) minutes (range 22-68 minutes) compared to 0 minutes in the off-clamp group. There was no difference in hemoglobin or creatinine levels between the groups. However, the on-clamp group had a significant loss in ipsilateral renal function on the MAG3 scan (49 vs. 42%, p = 0.0001), whereas the off-clamp group had no difference (48 vs. 46%, p = 0.72).

conclusionsThe off-clamp method for PN is a feasible and safe option with better preservation of ipsilateral renal function when compared with on-clamp PN in the treatment of small renal masses.

Indexed as

Chronic kidney diseaseKidney cancerOff-clampPartial nephrectomyZero ischemia

Identifiers

PMID32398995
PMCPMC7206604

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