Evidence map›Paper›PMID 29780712›Full record

ArticleJournal of visualized surgery2018

Advantages of wound retractor device versus rigid trocar at camera port in video-assisted thoracic surgery-a single institution experience.

Federico Raveglia, Ugo Cioffi, Matilde De Simone, Alessandro Rizzi, Andrea Leporati, Carmine Tinelli, Marco Chiarelli, Alessandro Baisi

Open access · hybridAbstract read
In one paragraph

Article in Journal of visualized surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Behavioral speech therapy intervention can improve the postoperative pain and performance status of lung cancer patients undergoing thoracoscopic surgery.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Federico RavegliaThoracic Surgery Unit, ASST Santi Paolo e Carlo, Università degli Studi di Milano, Milano, Italy.
Ugo CioffiDepartment of Surgery, Università degli Studi di Milano, Milano, Italy.
Matilde De SimoneDepartment of Surgery, Università degli Studi di Milano, Milano, Italy.
Alessandro RizziThoracic Surgery Unit, ASST Santi Paolo e Carlo, Università degli Studi di Milano, Milano, Italy.
Andrea LeporatiThoracic Surgery Unit, ASST Santi Paolo e Carlo, Università degli Studi di Milano, Milano, Italy.
Carmine TinelliBiometry and Medical Statistics, Policlinico San Matteo di Pavia, Pavia, Italy.
Marco ChiarelliDepartment of Surgery, Università degli Studi di Milano, Milano, Italy.
Alessandro BaisiThoracic Surgery Unit, ASST Santi Paolo e Carlo, Università degli Studi di Milano, Milano, Italy.
University of Milan · ITOspedale San Paolo · ITPoliclinico San Matteo Fondazione · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundrigid trocars are widely adopted in video-assisted thoracic surgery (VATS), despite some disadvantages: (I) cannula strong pressure on intercostal nerve stimulating postoperative pain; (II) limited movement of thoracoscopic devices on their fulcrum when extreme acute angles with the chest wall are needed. Wound retractor (WR) device, designed for laparoscopic surgery, it is also used in VATS, but to protect mini-thoracotomy. We compared the use of extra-small WR versus rigid trocar at camera port that is the most painful thoracostomy. The aim was to determine if WR is associated with less postoperative pain and better scope maneuverability.

methodsThis is a single institution prospective study recorded and approved by ethics committee at our hospital. From October 2016 to June 2017, we enrolled 40 patients (statistical power 88%), randomized into two different groups. Group A (20 patients) underwent VATS lung resection using WR at camera port, group B (20 patients) using rigid trocar. Intra-operative data collected were maximum acute angle obtained between the camera and chest wall and chest wall thickness. Pain was measured by numerical analog scales (NAS) at 6, 12, 24, 48 and 72 hours after surgery. We also measured total morphine consumption at 72 h administered by patient controlled analgesia (PCA) system.

resultsNo statistical significance was found in the demographic traits of the two groups (P=1). Statistically significant differences were found in favor of group A for both pain control, morphine consumption (P<0.001) and camera maneuverability (described as maximum acute angle obtained/chest wall thickness) (P<0.001).

conclusionspatients who had WR showed less postoperative pain. Moreover, WR presented other advantages: camera protection by small bleeding from chest wall, adaptability with every chest wall thickness, absence of skin injury around the port. We suggest its use instead of rigid trocar.

Indexed as

thoracoportVideo assisted thoracic surgery (VATS)Wound retractor (WR)

Identifiers

PMID29780712
PMCPMC5945854
OpenAlexW2795920648

What OpenQuestion holds

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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.