Development of a machine learning-based model for predicting positive margins in high-grade squamous intraepithelial lesion (HSIL) treatment by Cold Knife Conization(CKC): a single-center retrospective study.

OBJECTIVES: This study aims to analyze factors associated with positive surgical margins following cold knife conization (CKC) in patients with cervical high-grade squamous intraepithelial lesion (HSIL) and to develop a machine-learning-based risk prediction model. METHOD: We conducted a retrospective analysis of 3,343 patients who underwent CKC for HSIL at our institution. Logistic regression was employed to examine the relationship between demographic and pathological characteristics and the occurrence of positive surgical margins. Various machine learning methods were then applied to construct and evaluate the performance of the risk prediction model. RESULTS: The overall rate of positive surgical margins was 12.9%. Independent risk factors identified included glandular involvement (OR = 1.716, 95% CI: 1.345-2.189), transformation zone III (OR = 2.838, 95% CI: 2.258-3.568), HPV16/18 infection (OR = 2.863, 95% CI: 2.247-3.648), multiple HR-HPV infections (OR = 1.930, 95% CI: 1.537-2.425), TCT ≥ ASC-H (OR = 3.251, 95% CI: 2.584-4.091), and lesions covering ≥ 3 quadrants (OR = 3.264, 95% CI: 2.593-4.110). Logistic regression demonstrated the best prediction performance, with an accuracy of 74.7%, sensitivity of 76.7%, specificity of 74.4%, and AUC of 0.826. CONCLUSION: Independent risk factors for positive margins after CKC include HPV16/18 infection, multiple HR-HPV infections, glandular involvement, extensive lesion coverage, high TCT grades, and involvement of transformation zone III. The logistic regression model provides a robust and clinically valuable tool for predicting the risk of positive margins, guiding clinical decisions and patient management post-CKC.

Analysis of the clinical characteristics and surgical methods of high-grade squamous intraepithelial lesions of the cervix in postmenopausal women: A retrospective case study.

The purpose of this study was to thoroughly evaluate the clinical features and surgical options for high-grade squamous intraepithelial lesions (HSIL) in postmenopausal women. A total of 308 patients diagnosed with HSIL through colposcopic cervical biopsy and endocervical curettage were included. Their clinical characteristics, surgical treatments, and postoperative pathology were analyzed. Key findings include: 1. Patients with positive preoperative thinprep cytologic test (TCT) results and postoperative pathology indicating HSIL or squamous cell carcinoma (≥HSIL) were significantly more frequent than those with negative preoperative TCT results (P < .05). 2. Univariate analysis indicated significant impacts of TCT, human papillomavirus (HPV) type, transformation zone (TZ) location, and surgical technique on postoperative pathology (P < .05). 3. Logistic regression analysis confirmed significant influences of TCT, HPV type, TZ location, and surgical method on postoperative pathology outcomes (P < .05), showing that each unit increase in TZ raised the probability of ≥HSIL in postoperative pathology by 49.7%. In surgical comparisons, cold knife conization (CKC) and extrafascial hysterectomy resulted in 8.379 and 4.427 times higher probabilities of ≥HSIL in postoperative pathology, respectively, compared to loop electrosurgical excision procedure (LEEP). 4. Surgical methods significantly influenced margin results (P < .05). After LEEP, 17.5% of cases had positive margins, compared to 9.4% after CKC, and 3.7% after extrafascial hysterectomy, indicating the highest rate of positive surgical margins occurred with LEEP. 1. Combined TCT and HPV screening is crucial for cervical cancer prevention, early detection, and management in postmenopausal women. Women with positive results for both TCT and HPV should undergo colposcopic cervical biopsy and endocervical curettage. 2. For patients with TZ3, CKC is the recommended surgical option. 3. CKC is the preferred treatment for postmenopausal women with HSIL, as it effectively diagnoses and treats the lesion, showing superior outcomes in managing postmenopausal HSIL.

Clinical analysis of 314 patients with high-grade squamous intraepithelial lesion who underwent total hysterectomy directly: a multi-center, retrospective cohort study.

OBJECTIVE: To identify the risk factors of cervical high-grade squamous intraepithelial lesion(HSIL) complicated with occult cervical cancer and standardize the management of initial treatment for HSIL. METHOD: The clinical data of patients who underwent total hysterectomy directly due to HSIL in the obstetrics and gynecology department of two tertiary hospitals and three secondary hospitals from 2018 to 2023 were collected. Their general characteristics, pathological parameters and survival status were analyzed. Logistic regression model was used to analyze the correlation between clinical parameters and postoperative pathological upgrading. RESULT: 1. Among the 314 patients with HSIL who underwent total hysterectomy directly, 73.2% were from primary hospitals. 2. 25 patients (7.9%) were pathologically upgraded to cervical cancer, all of which were early invasive cancer. 3. Up to now, there was no recurrence or death in the 25 patients with early-stage invasive cancer, and the median follow-up period was 21 months(range 2-59 months). 4. Glandular involvement(OR 3.968; 95%CI 1.244-12.662) and lesion range ≥ 3 quadrants (OR 6.527; 95% CI 1.78-23.931), HPV 16/18 infection (OR 5.382; 95%CI 1.947-14.872), TCT ≥ ASC-H (OR 4.719; 95%CI 1.892-11.766) were independent risk factors that affected the upgrading of postoperative pathology. 5. The area under the curve (AUC) calculated by the Logistic regression model was 0.840, indicating that the predictive value was good. CONCLUSION: There is a risk of occult cervical cancer in patients with HSIL. Glandular involvement, Lesion range ≥ 3 quadrants, HPV 16/18 infection and TCT ≥ ASC-H are independent risk factors for HSIL combined with occult cervical cancer. The prognosis of biopsy-proved HSIL patients who underwent extrafascial hysterectomy and unexpected early invasive cancer was later identified on specimen may be good.

Topical delivery of drugs in the treatment of high-grade cervical squamous intraepithelial lesions: A meta-analysis.

OBJECTIVE: The present study aims to evaluate the efficacy and effect of localized delivery of drugs in the treatment of high-grade squamous intraepithelial lesion (HSIL) based on a meta-analysis. STUDY DESIGN: Databases including Cochrane Library, PubMed, Embase, Scopus, CNKI, and Wanfang were searched from their inception till August 2022. Randomized controlled trials (RCTs) that compared the efficacy of drugs and surgery in the treatment of HSIL were collected. A meta-analysis was performed using the software of Review Manager (version 5.4.1). RESULTS: Eight RCTs involving 523 patients were included in the meta-analysis. For HSIL, the rate of cervical lesions histological regression was 69.85 % in the surgery group and 59.88 % in the drug group, there was no significant difference between the two groups [OR = 0.45, 95 % CI (0.07, 3.03), P = 0.41]. The histological regression rate of cervical lesions in the placebo group was 37.76 %, and the difference between the drug group and the placebo group was statistically significant [OR = 4.94, 95 % CI (2.65, 9.20), P < 0.00001]. CONCLUSION: A total of four drugs were involved in the eight RCTS included in this study, which were imiquimod, 5-fluorouracil (5-FU), cidofovir and interferon. The results showed that although drug administration was effective in the histological regression of HSIL, the efficacy was less than about 10% of surgical treatment. Considering the recurrence of the disease after surgery and the problems of abortion, premature delivery and premature rupture of membranes after cervical conization in reproductive women, drug therapy can be used as a supplement to surgery or conservative treatment to promote the histological regression of cervical lesions in patients with HSIL.

Resultados de la conización por radiocirugía en pacientes atendidas en consulta de patología de cuello uterino / Results of conization by radiosurgery in cervical pathology patients

Introducción: la radiocirugía tiene como objetivo proporcionar una herramienta de diagnóstico y tratamiento. Objetivos: describir los resultados de la conización por radiocirugía en pacientes atendidas en la consulta de patología de cuello uterino. Método: se realizó una investigación descriptiva de corte transversal en el Hospital General Docente Mártires del 9 de abril, de Sagua la Grande, Villa Clara, Cuba. La población de estudio estuvo conformada por 256 pacientes atendidas en la consulta de patología de cuello uterino que fueron sometidas a conización por radiocirugía, desde enero de 2013 a diciembre de 2015. Para la recogida de la información se empleó la revisión de documentos mediante la confección de un modelo de recogida de datos. Resultados: el diagnóstico preoperatorio que aportó mayor cantidad de casos fue el NIC III (displasia severa) con 78 casos (30,5 por ciento). Conclusiones: en el presente estudio las lesiones premalignas comenzaron a aparecer con notada incidencia desde los 20 años y hasta los 49, con marcada ocurrencia en el grupo de 30 a 39 años. El aumento en el número de parejas, así como el comienzo temprano de las relaciones sexuales incrementan el riesgo de padecer lesiones intraepiteliales en el cuello del útero. A partir de los cinco años de iniciada las relaciones sexuales, comienzan a aparecer las lesiones intraepiteliales cervicales, el diagnóstico preoperatorio que aportó mayor cantidad de casos fue el NIC III (displasia severa). Existió correspondencia en todos los casos en los diagnósticos histológicos por sacabocado y cono(AU)

Introduction: radiosurgery aims to provide a diagnostic and treatment tool. Objectives: describe the results of radiosurgery conization in patients treated at the cervical pathology clinic. Method: adescriptive cross-sectional study was carried out at Mártires del 9 de Abril General Teaching Hospital, Sagua la Grande, Villa Clara, Cuba. The study population consisted of 256 patients treated at the cervical pathology clinic, who were submitted to radiosurgery conization, from January 2013 to December 2015. For the collection of the information, a review of documents was done by making a data collection model. Results: CIN III (severe dysplasia was) the preoperative diagnosis that contributed the most cases ( 78 cases (30.5 percent)). Conclusions: in the present study, premalignant lesions began to appear with a marked incidence from the age of 20 to 49, with a distinct occurrence in the group aged 30 to 39 years. The increase number of couples as well as the early beginning of sexual intercourse increase the risk of intraepithelial lesions in the cervix. After five years of sexual intercourse, cervical intraepithelial lesions began to appear, the preoperative diagnosis with the highest number of cases was CIN III (severe dysplasia). There was correspondence in all cases in the histological diagnoses by punch and cone(AU)

Resultados de la conización por radiocirugía en pacientes atendidas en consulta de patología de cuello uterino / Results of conization by radiosurgery in cervical pathology patients

Introducción: la radiocirugía tiene como objetivo proporcionar una herramienta de diagnóstico y tratamiento. Objetivos: describir los resultados de la conización por radiocirugía en pacientes atendidas en la consulta de patología de cuello uterino. Método: se realizó una investigación descriptiva de corte transversal en el Hospital General Docente Mártires del 9 de abril, de Sagua la Grande, Villa Clara, Cuba. La población de estudio estuvo conformada por 256 pacientes atendidas en la consulta de patología de cuello uterino que fueron sometidas a conización por radiocirugía, desde enero de 2013 a diciembre de 2015. Para la recogida de la información se empleó la revisión de documentos mediante la confección de un modelo de recogida de datos. Resultados: el diagnóstico preoperatorio que aportó mayor cantidad de casos fue el NIC III (displasia severa) con 78 casos (30,5 por ciento). Conclusiones: en el presente estudio las lesiones premalignas comenzaron a aparecer con notada incidencia desde los 20 años y hasta los 49, con marcada ocurrencia en el grupo de 30 a 39 años. El aumento en el número de parejas, así como el comienzo temprano de las relaciones sexuales incrementan el riesgo de padecer lesiones intraepiteliales en el cuello del útero. A partir de los cinco años de iniciada las relaciones sexuales, comienzan a aparecer las lesiones intraepiteliales cervicales, el diagnóstico preoperatorio que aportó mayor cantidad de casos fue el NIC III (displasia severa). Existió correspondencia en todos los casos en los diagnósticos histológicos por sacabocado y cono(AU)

Introduction: radiosurgery aims to provide a diagnostic and treatment tool. Objectives: describe the results of radiosurgery conization in patients treated at the cervical pathology clinic. Method: adescriptive cross-sectional study was carried out at Mártires del 9 de Abril General Teaching Hospital, Sagua la Grande, Villa Clara, Cuba. The study population consisted of 256 patients treated at the cervical pathology clinic, who were submitted to radiosurgery conization, from January 2013 to December 2015. For the collection of the information, a review of documents was done by making a data collection model. Results: CIN III (severe dysplasia was) the preoperative diagnosis that contributed the most cases ( 78 cases (30.5 percent)). Conclusions: in the present study, premalignant lesions began to appear with a marked incidence from the age of 20 to 49, with a distinct occurrence in the group aged 30 to 39 years. The increase number of couples as well as the early beginning of sexual intercourse increase the risk of intraepithelial lesions in the cervix. After five years of sexual intercourse, cervical intraepithelial lesions began to appear, the preoperative diagnosis with the highest number of cases was CIN III (severe dysplasia). There was correspondence in all cases in the histological diagnoses by punch and cone(AU)