Evidence map›Paper›PMID 24853845›Full record

ArticleSurgical endoscopy2014

Laparoendoscopic single-site adrenalectomy versus conventional laparoscopic adrenalectomy: a comparison of surgical outcomes and an analysis of a single surgeon's learning curve.

Yosuke Hirasawa, Akira Miyajima, Seiya Hattori, Kazutoshi Miyashita, Isao Kurihara, Hirotaka Shibata, Eiji Kikuchi, Ken Nakagawa, Mototsugu Oya

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.2field-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

12 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Adrenal masses: A urological perspective.Arab journal of urology · 2016
    Review
  10. Article
  11. Article
  12. Laparoendoscopic single-site surgery adrenalectomy - own experience and matched case-control study with standard laparoscopic adrenalectomy.Wideochirurgia i inne techniki maloinwazyjne = Videosurgery and other miniinvasive techniques · 2014
    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

9 authors at 3 institutions in 1 country.

Yosuke HirasawaDepartment of Urology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan, wbqmd473@yahoo.co.jp.
Akira Miyajima
Seiya Hattori
Kazutoshi Miyashita
Isao Kurihara
Hirotaka Shibata
Eiji Kikuchi
Ken Nakagawa
Mototsugu Oya
Keio University · JPKeio University Hospital · JPOita University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundConventional laparoscopic adrenalectomy (LA) is the gold standard procedure for benign adrenal tumors. Laparoendoscopic single-site adrenalectomy (LESS-A) has been developed as an extension of standard laparoscopic minimally invasive procedures.

methodsThis retrospective study compared the first experience of one surgeon with 70 LESS-A to 140 LA cases with respect to evaluating the influence of the inexperience on surgical outcomes and to assess this surgeon's learning curve for LESS-A.

resultsAge, gender, BMI, percentage of patients with prior abdominal surgery, tumor laterality, and tumor size were all comparable between the two groups. There were no statistically significant differences in any surgical outcomes, including mean operative time, pneumoperitoneum time, estimated blood loss, transfusion requirements, hemoglobin decrease at postoperative day 1, analgesic requirements, postoperative day of oral intake, conversion rate, or morbidity between the two groups. The one exception was hospital stay. There were no mortalities or reoperations in either group. The morbidity rates in the LESS-A group and LA group were 4.2 and 6.4%, respectively (p = 0.528). LESS-A appears to have a steep learning curve and the operative time of the initial 70 cases decreased markedly and remained stable when the experience level exceeded 12 cases. There was no morbidity or conversion in these first 12 LESS-A cases. Multiple regression analysis revealed that surgeon experience (p = 0.008) and tumor size (p = 0.001) were independent predictors of prolonged operative time.

conclusionsSurgical outcomes of LESS-A were equivalent to those of LA without compromising safety. The introduction of LESS-A at our hospital was smooth and safe. While the indication for LESS-A has been controversial, LESS-A was a useful procedure, especially for cases in which cosmesis is of paramount importance.

Indexed as

Clinical CompetenceLearning CurveAdrenalectomyAdrenal Gland NeoplasmsFemaleHumansLaparoscopyLength of StayMaleMiddle AgedOperative TimeRetrospective StudiesSurgeonsTreatment Outcome

Identifiers

PMID24853845
OpenAlexW2049504753

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.