Evidence map›Paper›PMID 34528104›Full record

ArticleWorld journal of surgery2022

National Trends and Perioperative Outcomes of Robotic-assisted Hepatectomy in the USA: A Propensity-score Matched Analysis from the National Cancer Database.

Mohamed K Kamel, Faiz Tuma, Charles A Keane, John Blebea

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In one paragraph

Article in World journal of surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 16% 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, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. International Benchmark Values for Robotic Right Hepatectomy: Multicenter Study From 22 Expert Centers.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2025
    Article
  5. Article
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  10. Hospital Volume and Textbook Outcomes in Minimally Invasive Hepatectomy for Hepatocellular Carcinoma.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
    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

4 authors at 1 institution in 1 country.

Mohamed K KamelDepartment of Surgery, Central Michigan University College of Medicine, 912 S Washington Ave, Suite #1, Saginaw, MI, USA. husse1m@cmich.edu.ORCID 0000-0001-9755-8024
Faiz TumaDepartment of Surgery, Central Michigan University College of Medicine, 912 S Washington Ave, Suite #1, Saginaw, MI, USA.
Charles A KeaneDepartment of Surgery, Central Michigan University College of Medicine, 912 S Washington Ave, Suite #1, Saginaw, MI, USA.
John BlebeaDepartment of Surgery, Central Michigan University College of Medicine, 912 S Washington Ave, Suite #1, Saginaw, MI, USA.
Central Michigan University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA paucity of data exists on the national use of robotic hepatectomy. We assessed national trends and perioperative outcomes of robotic hepatectomy in the USA. In addition, factors associated with use of the robotic approach were analyzed.

methodsThe National Cancer Database (NCDB) was queried for patients undergoing hepatectomy from 2010 to 2016. Patients undergoing total hepatectomy for transplant were excluded. Factors associated with the use of the robotic approach were assessed using logistic regression multivariable analysis. Propensity-score analysis was performed (robotic vs. laparoscopic and robotic vs. open approaches), and perioperative outcomes were compared between the matched groups.

resultsThe robotic approach was used in 287 patients (110 hospitals). Utilization of the robotic approach increased significantly on the national level from 0.8% in 2010 to 4.1% in 2016 (P<0.001). The number of hospitals performing a minimum of one robotic hepatectomy per year increased from 8 in 2010 to 35 in 2016. The median hospital length of stay was 4 days (IQR 3-6), 30-day readmission rate was 5%, and 30-day/90-day mortality rates were 3%/4%. Factors associated with using robotic approach were African-American race (95% CI 1.02-2.11), recent year of surgery (95% CI 1.11-1.32), HCC histology (95% CI 1.01-52.03), tumor size (95% CI 0.87-0.96), and early-stage tumor (Stage I-II, 95% CI 1.27-3.99). On propensity-matched analysis, there were no differences between robotic and open approaches (n=184 each group) in 30-day readmission (5% vs. 7%, P=0.651), 30-day mortality (2% vs. 4%, P=0.106), 90-day mortality (3% vs. 7%, P=0.080), or 5-year overall survival (58% vs. 43%, P=0.211). However, the robotic approach was associated with a significantly shorter hospital stay (median: 4 vs. 6 days, P<0.001). There were no differences between matched groups of patients undergoing robotic and laparoscopic approaches (n=182 in each group) in perioperative outcomes or length of hospital stay.

conclusionNational use of robotic-assisted hepatectomy has increased by fivefold over the seven-year study period. It was associated with a shorter hospital length of stay compared to the open approach without compromising perioperative outcomes or survival.

Indexed as

Carcinoma, HepatocellularLaparoscopyLiver NeoplasmsRobotic Surgical ProceduresHepatectomyHumansLength of StayPostoperative ComplicationsPropensity ScoreRetrospective StudiesTreatment Outcome

Identifiers

PMID34528104
OpenAlexW3201103118

What OpenQuestion holds

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Registered trials

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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.