ArticleSurgical endoscopy2020
Propensity score analysis of outcomes between the transabdominal preperitoneal and open Lichtenstein repair techniques for inguinal hernia repair: a single-center experience.
Article in Surgical endoscopy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it, 3 citations in OpenAlex.
- Incidence and predictors of chronic pain after inguinal hernia surgery: a systematic review and meta-analysis.Hernia : the journal of hernias and abdominal wall surgery · 2024Pooled it
- Chronic Groin Pain After Hernia Surgery: What Are We Missing?Journal of clinical medicine · 2025Review
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe mechanism of persistent chronic pain after TAPP and OLR remains controversial. Therefore, more prospective and well-designed studies are needed to determine the predictive risk factors that will lead to better pain prevention and possibly elimination. The aim of the present study was to investigate the risk factors of chronic pain after TAPP repair and OLR in a single institution.
methodsA single-center, retrospective study of propensity score-matched patients who underwent TAPP or OLR surgery between 2008 and 2018 was conducted. To overcome selection bias, we performed 1:1 matching using 6 covariates to generate the propensity score.
resultsA total of 400 patients treated with TAPP and 424 patients treated with OLR were balanced to 400 pairs of matched patients. The patients' age (P < 0.001), BMI (P < 0.001), foreign body sensation within 3 months after surgery (P < 0.001), and persistent sensation loss (P = 0.002) were different between the two groups. The OLR group had a shorter operative time than did the TAPP group (P < 0.001). The univariate analysis of factors predicting a difference in VAS between the preoperative assessment and the assessment 3 months after surgery showed that the type of surgery (P = 0.004), hernia grade (P = 0.001), type of mesh (P < 0.001), presence of scrotal invasion (P = 0.024), and foreign body sensation within 3 months (P = 0.047) were risk factors. The multivariate analysis revealed that only hernia grade III (CI - 8.524, - 2.783; P < 0.001), OLR operation type (CI 1.069, 4.987; P = 0.002), and the use of polypropylene mesh (CI - 5.400, - 1.489; P = 0.001) were independently associated with chronic pain.
conclusionThese results suggest that compared to OLR, TAPP leads to less postoperative pain and a better long-term quality of life.
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Registered trials
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.