Research Article

Association between CALLY index and postoperative visceral pain in endometriosis: a retrospective analysis

Volume: 7 Number: 2 March 27, 2026
TR EN

Association between CALLY index and postoperative visceral pain in endometriosis: a retrospective analysis

Abstract

Aims: To investigate the relationship between preoperative and postoperative visceral pain scores and the C-reactive protein albumin–lymphocyte (CALLY) index in patients with endometriosis and to identify predictors of postoperative pain. Methods: This retrospective comparative study included women aged 18–45 years who underwent surgical treatment for stage III–IV endometriosis at Ankara Etlik City Hospital between 2022 and 2024, with postoperative histopathological confirmation of the diagnosis. The control group consisted of healthy women without pelvic pathology who underwent bilateral tubal ligation for sterilization at the same institution during the study period. Preoperative and postoperative (day 7±1) blood samples were analyzed for CRP, albumin, and lymphocytes to calculate the CALLY index. Visceral pain was evaluated using a Visual Analogue Scale (VAS). Univariate and multivariate linear regression analyses were performed to identify predictors of postoperative pain after adjusting for surgical type (laparotomy/laparoscopy). Results: Ninety-four endometriosis patients and 120 controls were analyzed. Preoperative and postoperative VAS scores were significantly higher in the endometriosis group than controls (p<0.001). In endometriosis patients, postoperative CALLY index values decreased significantly compared to preoperative levels (p<0.001), and a weak but significant negative correlation was found between postoperative CALLY and VAS scores (ρ=–0.214, p=0.038). Multivariate regression identified bilateral endometrioma as the only independent predictor of postoperative visceral pain (adjusted β=1.311, p<0.001). Conclusion: CALLY index and pain were weakly but significantly correlated postoperatively, indicating that systemic inflammation alone cannot explain endometriosis-related pain. Bilateral endometrioma represents a high-risk phenotype for persistent postoperative pain. Evaluating anatomic burden, inflammatory-nutritional indices, and pain phenotype together may improve individualized pain management strategies.

Keywords

Ethical Statement

The study protocol was approved by the institutional ethics committee (Protocol No. AEŞH-BADEK1-2025-262) and performed in accordance with the principles of the Declaration of Helsinki.

References

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Details

Primary Language

English

Subjects

Obstetrics and Gynaecology

Journal Section

Research Article

Publication Date

March 27, 2026

Submission Date

December 13, 2025

Acceptance Date

January 26, 2026

Published in Issue

Year 2026 Volume: 7 Number: 2

APA
Üçok, B. S., Dikici Aktaş, T., Özalp, E., Akbulut, Ö. V., & Çanga, K. (2026). Association between CALLY index and postoperative visceral pain in endometriosis: a retrospective analysis. Journal of Medicine and Palliative Care, 7(2), 192-197. https://doi.org/10.47582/jompac.1841459
AMA
1.Üçok BS, Dikici Aktaş T, Özalp E, Akbulut ÖV, Çanga K. Association between CALLY index and postoperative visceral pain in endometriosis: a retrospective analysis. J Med Palliat Care / JOMPAC / jompac. 2026;7(2):192-197. doi:10.47582/jompac.1841459
Chicago
Üçok, Belgin Savran, Türkan Dikici Aktaş, Emel Özalp, Özgür Volkan Akbulut, and Kubilay Çanga. 2026. “Association Between CALLY Index and Postoperative Visceral Pain in Endometriosis: A Retrospective Analysis”. Journal of Medicine and Palliative Care 7 (2): 192-97. https://doi.org/10.47582/jompac.1841459.
EndNote
Üçok BS, Dikici Aktaş T, Özalp E, Akbulut ÖV, Çanga K (March 1, 2026) Association between CALLY index and postoperative visceral pain in endometriosis: a retrospective analysis. Journal of Medicine and Palliative Care 7 2 192–197.
IEEE
[1]B. S. Üçok, T. Dikici Aktaş, E. Özalp, Ö. V. Akbulut, and K. Çanga, “Association between CALLY index and postoperative visceral pain in endometriosis: a retrospective analysis”, J Med Palliat Care / JOMPAC / jompac, vol. 7, no. 2, pp. 192–197, Mar. 2026, doi: 10.47582/jompac.1841459.
ISNAD
Üçok, Belgin Savran - Dikici Aktaş, Türkan - Özalp, Emel - Akbulut, Özgür Volkan - Çanga, Kubilay. “Association Between CALLY Index and Postoperative Visceral Pain in Endometriosis: A Retrospective Analysis”. Journal of Medicine and Palliative Care 7/2 (March 1, 2026): 192-197. https://doi.org/10.47582/jompac.1841459.
JAMA
1.Üçok BS, Dikici Aktaş T, Özalp E, Akbulut ÖV, Çanga K. Association between CALLY index and postoperative visceral pain in endometriosis: a retrospective analysis. J Med Palliat Care / JOMPAC / jompac. 2026;7:192–197.
MLA
Üçok, Belgin Savran, et al. “Association Between CALLY Index and Postoperative Visceral Pain in Endometriosis: A Retrospective Analysis”. Journal of Medicine and Palliative Care, vol. 7, no. 2, Mar. 2026, pp. 192-7, doi:10.47582/jompac.1841459.
Vancouver
1.Belgin Savran Üçok, Türkan Dikici Aktaş, Emel Özalp, Özgür Volkan Akbulut, Kubilay Çanga. Association between CALLY index and postoperative visceral pain in endometriosis: a retrospective analysis. J Med Palliat Care / JOMPAC / jompac. 2026 Mar. 1;7(2):192-7. doi:10.47582/jompac.1841459

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