ArticleSurgical endoscopy2020
Modified liver hanging maneuver in laparoscopic major hepatectomy: the learning curve and evolution of indications.
Article in Surgical endoscopy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06864702 (The Construction and Effect Verification of a Deep Learning-based Automated Semantic Segmentation Model for Medical Imaging), which is not on this map. Cited by 8 papers.
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.
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.
The Construction and Effect Verification of a Deep Learning-based Automated Semantic Segmentation Model for Medical Imaging: A Retrospective Case Analysis Clinical Study
Who cites it
8 citing papers in PubMed.
- Clinical Application of the Right Liver Hanging Maneuver for Laparoscopic Resection of Segment 6 Hepatocellular Carcinoma.OncoTargets and therapy · 2026Article
- Preoperative predictors of unplanned conversion in laparoscopic liver resection: a multicenter cohort analysis.Frontiers in oncology · 2025Article
- Technical aspects and learning curve of complex laparoscopic hepatectomy: how we do it.Surgical endoscopy · 2024Article
- Towards a Standardization of Learning Curve Assessment in Minimally Invasive Liver Surgery.Annals of surgery · 2024Article
- A systematic review and meta-analysis of blood transfusion rates during liver resection by country.Annals of surgical treatment and research · 2023Article
- Trocar layouts in laparoscopic liver surgery.Surgical endoscopy · 2022Review
- Pure Laparoscopic Hepatectomy for Tumors Close to the Major Hepatic Veins: Intraparenchymal Identification of the Major Hepatic Veins using the Ventral Approach.World journal of surgery · 2021Article
- Up-to-down open and laparoscopic liver hanging maneuver: an overview.Langenbeck's archives of surgery · 2021Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLaparoscopic major hepatectomy is a technically challenging procedure requiring a steep learning curve. The liver hanging maneuver is a useful technique in liver resection, especially for large or invasive tumors, a relative contraindication of the laparoscopic approach. Therefore, this study aimed to evaluate the learning curve for laparoscopic major hepatectomy using the liver hanging maneuver and extended indications.
methodsPatients who underwent laparoscopic major hepatectomy using the liver hanging maneuver by a single surgeon from January 2013 and September 2018 were retrospectively reviewed. Our hanging technique involves placing the hanging tape along the inferior vena cava for right-sided hepatectomy or the ligamentum venosum for left-sided hepatectomy. The upper end of the tape was placed at the lateral side of the major hepatic veins. The learning curve for operating time and blood loss was evaluated using the cumulative sum (CUSUM) method.
resultsAmong 53 patients, 18 underwent right hepatectomy, 26 underwent left hepatectomy, and 9 underwent right posterior sectionectomy. CUSUM analysis showed that operative time and blood loss improved after the 30th laparoscopic major hepatectomy. The 53 consecutive patients were divided into two groups (early, patients 1-30; late, patients 31-53). The median operative time was lower in the late group, but the difference was not statistically significant (270 vs. 245 min, p = 0.261). The median blood loss was also significantly lower in the late group (350 vs. 150 ml, p < 0.001). Large tumors (measuring > 10 cm) and tumors in proximity to major vessels were significantly higher in the late group (0 vs. 17.4%, p = 0.018; 3.3 vs. 21.7%, p = 0.036; respectively).
conclusionThis study shows that laparoscopic major hepatectomy using the modified liver hanging maneuver has a learning curve of 30 cases. After procedure standardization, the indications have gradually been extended to large or invasive tumors.
Indexed as
Identifiers
31712899What OpenQuestion holds
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.