Parkland Grading Scale (PGS) is an intraoperative grading scale to stratify gallbladder disease severity during laparoscopic cholecystectomy (LC). We evaluated the usefulness of the PGS in predicting the difficulty levels of LC procedures using a novel approach.
Methods
A total of 261 patients diagnosed with cholelithiasis and cholecystitis who underwent LC were assessed. The PGS and the surgical difficulty grading system were used to evaluate surgical procedures by reviewing the operation videos. Clinical baseline characteristics and post-treatment outcomes were also recorded. Differences between the five PGS grades in terms of surgical difficulty scores were analyzed using the Jonckheere-Terpstra test. The relationship between PGS grades and surgical difficulty scores was assessed using Spearman’s Rank correlation. Finally, the linear trends between morbidity scores and PGS grades were evaluated using the Mantel-Haenszel test.
Results
There was a significant difference in the surgical difficulty scores for the five PGS grades (p < 0.001). In pairwise comparison, each grade (1–5) was significantly different from the others (p < 0.05) in terms of surgical difficulty, except Grade 2 vs. 3 (p = 0.07) and Grade 3 vs. 4 (p = 0.08). There was a significant correlation between PGS grades and surgical difficulty scores (rs = 0.681, p < 0.001). There was also a significant linear association between morbidity and PGS grades (p < 0.001). Spearman’s R value was 0.176 (p = 0.004).
Conclusion
The PGS can accurately assess the surgical difficulty level of LC. The precision and conciseness of the PGS make it suitable for use in future research.
Reference:
Liu, Yq., Wang, C., Cai, X. et al. Can the parkland grading scale predict the difficulty of laparoscopic cholecystectomy? A new approach to validation. BMC Surg 23, 142 (2023). https://doi.org/10.1186/s12893-023-02036-0
Keywords:
Liu, Yq., Wang, C., Cai, X., BMC surgery, Parkland Grading Scale, Laparoscopy, Laparoscopic cholecystectomy, Cholelithiasis
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