Agreement of histopathological findings of uterine curettage and hysterectomy specimens in women with abnormal uterine bleeding

Pathologic Profile of Hysterectomy Cases in Saudi Arabia: A Tertiary Center Experience

Background

Hysterectomies are increasingly being replaced by more conservative management modalities and are now only used for limited clinical indications. The agreement between these indications and the final pathology is understudied.

Objectives

This study aimed to correlate the preoperative clinical diagnoses with the pathological findings detected in hysterectomies in Saudi women of different age groups.

Materials and Methods

This retrospective study analyzed the preoperative clinical indications and the subsequent clinical and pathological data of all hysterectomies conducted at a single tertiary care hospital in the Eastern Province of Saudi Arabia between January 2010 and December 2021.

Results

There was no decline in the frequency of hysterectomies across the study period. Abnormal uterine bleeding was the most common clinical indication across all age groups, followed by symptomatic fibroid and uterine prolapse in women aged <50 and ≥50 years, respectively. A total of 9.2% of the cases were indicated for therapeutic reasons, either as an emergency procedure for peripartum hemorrhage or for suspected uterine premalignant and malignant lesions. Besides these, 41.2% of patients had more than one pathology, with the most common combination being leiomyoma and adenomyosis (43.4%). The difference in age between malignant and benign cases (52.3 vs. 48.8 years, respectively) was not statistically significant (P = 0.109).

Conclusions

Most of our cohort had benign lesions. Perceptible misuse of the procedure in this cohort was unlikely, as a large proportion of the patients had more than one pathology corresponding to each clinical indication.

Diagnostic accuracy of endometrial sampling tests for detecting endometrial cancer: a systematic review and meta-analysis

OBJECTIVES

To determine the diagnostic accuracy of different endometrial sampling tests for detecting endometrial carcinoma.

DESIGN

Systematic review and meta-analysis of studies of diagnostic accuracy.

DATA SOURCES

Cochrane Library, MEDLINE/PubMed, CINAHL, Web of Science and Scopus, from the date of inception of the databases to 18 January 2023. Additionally, the reference lists of included studies and other systematic reviews were thoroughly searched.

ELIGIBILITY CRITERIA

We included published cross-sectional studies that evaluated any endometrial sampling test (index tests) in women (participants) with clinical suspicion of endometrial carcinoma (target condition) in comparison with histopathology of hysterectomy specimens (reference standard). We excluded case-control and case series studies. No restrictions on language or date of publication were applied.

DATA EXTRACTION AND SYNTHESIS

Two independent reviewers extracted study data and assessed study quality using the revised quality assessment tool for diagnostic accuracy studies (QUADAS-2). We used bivariate diagnostic random-effects meta-analysis and presented the results in a summary receiver operating characteristic curve. We assessed the certainty of evidence as recommended by the GRADE (Grading of Recommendations, Assessment, Development, and Evaluations) approach.

RESULTS

Twelve studies (1607 participants), published between 1986 and 2022, contributed data to the meta-analysis results. Seven studies were judged to be at a low risk of bias in all domains and all studies had low applicability concerns. The most studied index tests were Pipelle and conventional dilation and curettage (D&C). The sensitivity, specificity, positive likelihood ratio and negative likelihood ratio (95% CIs) for Pipelle were 0.774 (0.565 to 0.900), 0.985 (0.927 to 0.997), 97.000 (14.000 to 349.000) and 0.241 (0.101 to 0.442) and for conventional D&C were 0.880 (0.281 to 0.993), 0.984 (0.956 to 0.995), 59.300 (14.200 to 153.000) and 0.194 (0.007 to 0.732), respectively.

CONCLUSION

High certainty evidence indicates that endometrial sampling using Pipelle or conventional D&C is accurate in diagnosing endometrial cancer. Studies assessing other endometrial sampling tests were sparse.

TRIAL REGISTRATION NUMBER

https://osf.io/h8e9z.

Risk of More Advanced Lesions at Hysterectomy after Initial Diagnosis of Non-Atypical Endometrial Hyperplasia in Patients with Postmenopausal Bleeding and Oral Anticoagulant Treatment

Background and Objectives: Endometrial hyperplasia (EH) is a precursor lesion to endometrial cancer (EC), and when cellular atypia is present, in 40% of cases, they are diagnosed with EC on hysterectomy. Usually, EH is clinically manifested by uterine bleeding. In patients with oral anticoagulant therapy (OAT), the uterus is the second most common source of bleeding. The aim of the study was to show that uterine bleeding in postmenopausal patients undergoing OAT may reveal precancerous endometrial lesions with atypia, or neoplastic lesions in patients with an initial diagnosis of endometrial hyperplasia without atypia (non-atypical endometrial hyperplasia, NAEH) on dilation and curettage (D&C). We will be able to estimate the risk of a postmenopausal female patient with uterine bleeding during an OAT to have a precancerous endometrial lesion. Materials and Methods: The subjects of the study were 173 female patients with uterine bleeding, who have had total hysterectomy with bilateral salpingoovarectomy, of whom 99 underwent an OAT. There were 101 female patients initially diagnosed with NAEH, of which 60 did not have anticoagulant treatment (mean age 57.36 ± 6.51) and 41 had anticoagulant treatment (mean age 60.39 ± 7.35) (p = 0.006). From the pathology diagnosis moment, the surgery was performed at 42.09 ± 14.54 days in patients without OAT and after 35.39 ± 11.29 days in those who received such treatment (p = 0.724). Results: Initial diagnosis of NAEH established at D&C was changed at the final diagnosis after hysterectomy in EH with cellular atypia (atypical endometrial hyperplasia AEH) or EC in 18.18% of patients without OAT, and in 40.54% of patients who received this treatment. Conclusions: Based on a logistic regression model, it is estimated that female patients with an initial histopathological diagnosis of NAEH and who underwent OAT have, on average, 4.85 times greater odds (OR = 4.85, 95% CI 1.79–14.06) than the others of being identified postoperatively with more advanced lesions.

The accuracy of endometrial sampling for the diagnosis of patterns of endometrial pathology in women presenting with abnormal uterine bleeding. More conservative therapeutic approaches

Objectives:

Abnormal uterine bleeding (AUB) is a leading cause of hysterectomies, the cause of which is usually diagnosed with preoperative endometrial sampling. We planned this study to assess the accuracy of diagnosing the histologic patterns of endometrium in the preoperative sample in reference to the final histologic diagnosis in hysterectomy.

Methods:

We retrospectively reviewed medical charts between January 2011 and December 2015 at a tertiary hospital in Saudi Arabia and identified 43 cases of AUB with complete documentation. The histologic diagnoses were classified into normal and benign pathology group (N/B), or carcinoma and hyperplasia category (Ca/H). Measures of validity were used to compare endometrial sampling histological diagnoses to diagnoses following hysterectomy and Cohen’s kappa to assess for agreement between the 2 modalities.

Results:

The median age of all patients was 49 years. Preoperative histologic examination showed 53.8% sensitivity, 90% specificity, 70% positive predictive values and 81.8% negative predictive values, 30.1% false positive rates and 18.2% false negative rates. The agreement between preoperative and postoperative histologic diagnoses was moderate (79.1%, k=0.469).

Conclusion:

The accuracy of preoperative histologic examination was moderate. Our findings recommend cautious clinical decision making and limiting hysterectomy to women who do not respond to other therapeutic measures.