Evidence map›Paper›PMID 34847882›Full record

ArticleBMC surgery2021

A comparison of the da Vinci Xi vs. da Vinci Si surgical systems for radical prostatectomy.

Kun-Yang Lei, Wen-Jie Xie, Sheng-Qiang Fu, Ming Ma, Ting Sun

Open access · goldAbstract read
In one paragraph

Article in BMC surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
2.6field-weighted citation impact, top 9% 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

11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Robotic-Assisted Vascular Surgery: A Clinical Perspective.Methodist DeBakey cardiovascular journal · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. Article
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

5 authors at 2 institutions in 1 country.

Kun-Yang Lei *Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi, China.
Wen-Jie Xie *Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi, China.
Sheng-Qiang FuDepartment of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi, China.
Ming MaDepartment of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi, China.
Ting SunDepartment of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi, China. doctorsunting1960@163.com.
First Affiliated Hospital of Nanchang University · CNNanchang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo compare the perioperative and short-term efficacy and cost of the da Vinci Xi and da Vinci Si surgical systems for radical prostatectomy.

methodsWe retrospectively analyzed the clinical data of 175 patients with prostate cancer who underwent radical prostatectomy with the da Vinci Si or Xi surgical systems in our hospital from June 2019 to June 2020. Of the 175 patients, 82 underwent robot-assisted laparoscopic radical prostatectomy with the da Vinci Xi surgery system, and 93 patients underwent robot-assisted laparoscopic radical prostatectomy with the da Vinci Si surgical system. The perioperative outcomes, short-term efficacy and costs were compared between the two groups.

resultsThe anesthesia time, operation time, docking time, indwelling catheter time and postoperative bed rest time in the Xi group were shorter than those in the Si group (respectively, 268.8 min vs. 219.3 min, P = 0.001; 228.2 min vs. 259.6 min, P < 0.001; 7.4 min vs. 12.7 min, P < 0.001; 8.6 d vs. 9.7 d, P = 0.036; 2.2 d vs. 2.6 d, P = 0.002). However, the total cost of hospitalization and the cost of intraoperative consumables in the Xi group were higher than those in the Si group (84,740.7 vs. 76,739.1 ¥, P = 0.003; 13,199.4 vs. 10,823.0 ¥, P = 0.019).

conclusionsAlthough the cost of robot-assisted radical prostatectomy is higher, compared with the Si system, the Xi system has better perioperative outcomes and can provide similar short-term efficacy and oncology outcomes.

Indexed as

ProstatectomyRobotic Surgical ProceduresHumansMaleOperative TimeRetrospective StudiesTreatment OutcomeDa Vinci SiDa Vinci XiRadical prostatectomy

Identifiers

PMID34847882
PMCPMC8638093
OpenAlexW3215967455

What OpenQuestion holds

Textmetadata
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.