Efficacy of Lidocaine Spray for Pain Reduction during Colposcopy-Directed Cervical Biopsies: A Randomized Controlled Trial.

Objectives: The objective of this study was to evaluate the efficacy of lidocaine spray in reducing the pain during colposcopy-directed cervical biopsy (CDB). Methods: From December 2017 to February 2019, 312 women undergoing CDBs were enrolled. The participants were randomized to three groups: group 1 (lidocaine spray), in which lidocaine spray was applied thoroughly to the cervix; group 2 (placebo), in which normal saline was applied thoroughly to the cervix; and group 3 (control), in which no anesthetic agent was applied to the cervix. Each woman completed a 10 cm visual analog scale to classify the subjective pain experience at three time points: baseline, immediately after biopsy, and 10 min after the procedure. The primary outcome of this study was the biopsy pain score. Results: The 312 enrolled women were randomly assigned to the three groups, amounting to 104 women per group. The clinical and pathological characteristics of the participants in all groups were comparable. The baseline, the biopsy, and the post-procedure pain scores were comparable among the three groups. There was a significant increase in the pain score from baseline to biopsy and from baseline to post-procedure in each group. The pain-score changes from baseline to biopsy in the lidocaine spray group significantly decreased when compared with the normal saline group (<0.001), and tended to decrease, though not significantly (p = 0.06), when compared with the control group. No complication with the intervention was observed. Conclusions: The application of lidocaine spray to the cervix has the benefit of reducing the pain associated with CDBs by a small amount. However, the intervention is safe and may be considered in nulliparous and/or overly anxious women undergoing the procedure.

Prevalence and risk factor of post-operative lower extremities deep vein thrombosis in patients undergoing gynecologic surgery: a single-institute cross-sectional study.

BACKGROUND AND AIM: The study of prevalence and risk factors of postoperative lower limb deep vein thrombosis (DVT) in Thai gynecologic patients was limited. The present study was conducted to evaluate this issue. METHODS: The patients were age > 15 years old without a history of DVT or pulmonary emboli (PE) scheduled for laparotomy or vaginal gynecologic surgery between May and November 2020 were invited to participate. All of these patients were scheduled for a complete duplex ultrasound to detect lower limb DVT 72 h before and within 14 days after the operation. The patients without DVT were scheduled for an interview by telephone about DVT symptoms 30 days after the operation. The clinical variables were compared using univariate and multivariate analysis to identify the independent factors related to the development of DVT. RESULTS: One hundred and twelve patients met the inclusion criteria. Of these patients, 44 cases (39.3%) were diagnosed as malignancy and 102 patients underwent a hysterectomy. Post-operative DVTs were detected in six patients (5.4%) and all except one had a malignancy. Thus, the prevalence of DVT in malignancy cases was five in 44 patients (11.4%). The independent risk factors for postoperative DVT were age > 60-year-old and receiving a perioperative blood transfusion. Five of six DVT patients received low molecular-weight heparin for treatment of DVT and none developed PE. The rest of the participants reported no symptom-related DVTs from the interview 30 days after the operation. CONCLUSION: The prevalence of postoperative DVT in gynecologic patients was 5%, and the independent risk factors were elderly patients and receiving a perioperative blood transfusion.

Efficacy of Listening to Music on Pain Reduction during Colposcopy-Directed Cervical Biopsy: A Randomized, Controlled Trial.

Background and Objective: To investigate the efficacy of listening to music on pain reduction during colposcopy-directed cervical biopsy (CDB). Materials and Methods: From June 2020 to November 2021, 240 women undergoing CDB were enrolled. The participants were randomized into three groups: Group 1, colposcopic examination while wearing headphones and listening to music; Group 2, colposcopy while wearing headphones but not listening to music; Group 3 (control group), colposcopy while neither listening to music nor wearing headphones. All participating women completed a 10 cm visual analog scale for subjective pain at three time points: baseline, immediately after cervical biopsy, and 15 min after the procedure. The primary endpoint was the biopsy pain score. Result: Of the 240 women, a sample size of 80 was randomly assigned per group. The clinical-pathological and procedure-related characteristics of the participants in all groups were similar. The mean baseline pain score between each group was not significantly different (2.83 in the music group, 2.54 in group 2, and 2.94 in the control group, p = 0.47). There were no significant differences between each group in terms of mean biopsy pain score (4.21 in the music group, 4.24 in group 2, and 4.30 in the control group, p = 0.98). The differences in changes between the baseline pain score and the biopsy pain score were not statistically significant (1.39 in the music group, 1.70 in group 2, and 1.36 in the control group, p = 0.69). In the multiple comparison analysis, the differences in changes between the biopsy pain score and the baseline pain score between each group were also not statistically significant. There were no complications with the intervention observed. Conclusion: This study demonstrated that there was no beneficial effect of listening to music on pain reduction during colposcopy-directed cervical biopsies.

Randomized, Controlled Trial of Dexamethasone Versus Dexamethasone Plus Hydrocortisone as Prophylaxis for Hypersensitivity Reactions Due to Paclitaxel Treatment for Gynecologic Cancer.

OBJECTIVE: The aim of this study was to assess intravenous hydrocortisone (HCT) added to standard dexamethasone (DXM) prophylaxis for paclitaxel-associated hypersensitivity reactions (HSRs). METHODS: Paclitaxel naives scheduled for 6 cycles of paclitaxel (plus platinum) were randomized to DXM alone (20 mg intravenously [IV]) versus DXM plus HCT (100 mg IV) as premedication including chlorpheniramine (10 mg IV), diphenhydramine (25 mg orally), and ranitidine (50 mg IV) 30 minutes before infusion. Clinic nurses observed for HSRs. Groups were well balanced for cancer type, stage, drug allergy, chemotherapy naivete, mean age, body mass index, and paclitaxel dose. RESULTS: The 44 DXM controls underwent 213 cycles and the 42 investigational DXM plus HCT group 192 per protocol cycles. Hypersensitivity reactions were observed among 9 (4.2%) DXM only cycles compared with 1 (0.5%) among DXM plus HCT cycles (P = 0.022). Hypersensitivity reactions occurred in 8 (18%) DXM only patients and in 1 (2.4%) among those correctly receiving DXM plus HCT (P = 0.030). All HSRs occurred in cycles 1 to 3, within 10 to 40 minutes after infusion initiation, and peaked in cycle 2 (5/39) for DXM recipients and in cycle 3 (1/30) for DXM plus HCT. Hypersensitivity reaction severity was grade 1 in 3 DXM only recipients and grade 2 in 6 DXM and 1 DXM plus HCT. A sole grade 3 HSR was in an intention-to-treat DXM-HCT patient, who erroneously received no HCT. Hypersensitivity reaction symptoms were facial flushing (8 episodes), dyspnea (7), palmar rash (1), and transient hypotension (1). Paclitaxel infusion was suspended for treatment of HSRs; in all cases, symptoms mitigated and infusion successfully restarted for the remaining dose. CONCLUSIONS: Adding HCT to routine DXM prophylaxis significantly decreased paclitaxel HSR frequency.

Appropriate Bowel Preparation for Laparotomy Gynecologic Surgery: A Prospective, Surgeon-Blinded Randomized Study.

OBJECTIVE: To compare the surgeon's satisfaction during gynecological laparotomy surgery and patient's satisfaction as well as quality of life (QOL) among 3 groups of bowel preparations: no enema vs. sodium chloride enema vs. soap-suds enema (SSE). MATERIALS AND METHOD: Three hundred and thirty three women undergoing gynecological laparotomy surgery and without risks to bowel lumen entry between November 2014 and October 2015 were randomized to receive no enema (n = 111), sodium chloride enema (n = 111) or SSE (n = 111) for bowel preparation. Surgeons, who were blinded for the type of bowel preparation, assessed the surgical visualization and the efficacy of bowel packing. The patients' satisfaction and the QOL were also assessed on the days of admission, operation, post-operation, and discharge. RESULTS: The patients' features of the 3 groups were well balanced. The surgeon's satisfaction was rated excellent as 56.8, 63.1 and 65.8% in the no-enema, sodium chloride and SSE groups (p = 0.830), respectively. The patients in the no-bowel-preparation group were satisfied more significantly than the other groups (p = 0.001). No significant differences in QOL were observed among the 3 groups. CONCLUSION: The type of bowel preparation for exploratory gynecologic surgery did not affect the surgical visualization and the QOL of the patients.

Primary ovarian mucinous adenocarcinoma of intestinal type: a clinicopathologic study of 46 cases.

This study was aimed to evaluate the clinicopathologic details of primary ovarian mucinous adenocarcinoma and their prognostic significance. The clinicopathologic characteristics of 46 cases of mucinous adenocarcinoma were reviewed. The diagnosis of mucinous adenocarcinoma required the presence of stromal invasion of either the expansile (confluent glandular) pattern or the infiltrative pattern in an area size >10 mm(2). The cases were stratified using different grading methods and different cutoff limits of stromal invasion. Regarding the invasive pattern, 20 cases had the infiltrative pattern only, 8 had both infiltrative and expansile patterns, 7 had the expansile pattern only, and 11 had the expansile pattern with infiltrative microinvasion (area ≤10 mm(2)). The patients with tumors containing the expansile pattern had a younger mean age compared with those with the infiltrative pattern only (42.3 vs. 53.7 yr; P=0.004). On follow-up, 12 patients had tumor recurrence, 9 of whom died of disease. Tumor recurrence was associated with stage ≥II (P<0.001) and infiltrative area >10 mm(2) (P=0.015). Decreased progression-free survival and cancer-specific survival was strongly associated with tumor stage ≥II (P<0.001 for each survival) and infiltrative area >50 mm(2) (P=0.003 and 0.010, respectively). Among 27 stage IA patients, the infiltrative extent (area >50 mm or dimension >20 mm) was the only variable that was significantly associated with recurrence and decreased survival. Tumor grading was not significantly associated with the recurrence risk or the survival. The extent of infiltrative invasion in ovarian mucinous adenocarcinoma may provide additional prognostic value to the tumor stage and the pattern of stromal invasion.

Micturition symptoms in gynecologic cancer patients receiving paclitaxel and platinum-based chemotherapy regimen: a prospective study.

OBJECTIVE: To evaluate the effect of paclitaxel and platinum-based chemotherapy (PT) on micturition symptoms. METHODS: All gynecologic cancer patients who were assigned to receive the PT regimen and understood the Thai language were invited to participate in this study. The exclusion criteria were as follows: abnormal urinary symptoms, retained urinary catheter or percutaneous nephrostomy, anticholinergic drug use, or scheduled to receive radiation therapy after the completion of chemotherapy. The participants were interviewed using three Thai validated questionnaires, the incontinence impact questionnaire-short form, urogenital distress inventory short form, and Sandvik score, on the day before receiving the first cycle of chemotherapy (pre-treatment), on the day before receiving the 4th cycle (mid-treatment), and 46 weeks after completing 69 cycles (post-treatment). The scores at the three time points were compared. Patients who received less than three cycles were not included in the analysis. RESULTS: One hundred and ten patients were included in this study. There were significant differences in the median questionnaire scores at the three time points for both carboplatin plus paclitaxel and cisplatin plus paclitaxel. However, when using a pairwise difference between the two treatment protocols, there were no significant changes in the score from pre-treatment to post-treatment. CONCLUSION: The PT regimen has an impact on micturition symptoms during chemotherapy which recover after treatment completion.

Profiling the Expression and Prognostic Values of FYN, A Non-Receptor Tyrosine Kinase, in Different Histological Types of Epithelial Ovarian Cancer.

OBJECTIVE: This study was aimed at evaluating FYN expression among different histologic types of epithelial ovarian cancer (EOC) and its associated prognostics. METHODS: The FYN expression levels using quantitative real-time PCR method were evaluated in 98 primary EOC. Receiver operating characteristic curve were used to select an optimal cut-off value for determining the presence or absence of a disease progression. RESULT: The median level of FYN expression varied among different EOC types, being the highest in high-grade serous carcinomas and the lowest in clear cell carcinomas (CCC). Using the cutoff FYN value to predict disease progression, the FYN-positive group had a poorer progression-free survival (PFS) compared to the FYN-negative group (p = 0.001). In multivariate Cox regression analysis, FYN expression was an independent predictor for disease progression (Hazard ratio = 2.30; 95% CI: 1.21- 4.38; p = 0.011). In subgroup analysis, FYN expression was significantly associated with lower PFS in early stage CCC patients (p = 0.009). CONCLUSION: FYN expression is variable among different types of EOC while impacting on the prognostic values in patients with early stage CCC.

Clear-Cell Mesothelioma of Uterine Corpus: Diagnostic Challenges in Intraoperative Frozen Sections.

The clear-cell variant of epithelioid mesothelioma is an extremely rare neoplasm of the peritoneum. It shares histomorphologic features overlapping with a wide variety of tumors including carcinomas and other non-epithelial neoplasms. The diagnosis of peritoneal clear-cell mesothelioma is not always straightforward, despite known immunohistochemistry (IHC) markers. Due to its rarity, this entity may be diagnostically confused with other clear-cell neoplasms, particularly in intraoperative frozen sections. Here, we present a case of clear-cell mesothelioma originating in the uterine serosa that was initially misdiagnosed as clear-cell adenocarcinoma in the intraoperative frozen section. Microscopically, the tumor showed diffuse tubulocystic spaces of variable size lined by clear cells with moderate nuclear atypia. Immunohistochemical staining confirmed the diagnosis of clear-cell mesothelioma. Recognition of this entity, albeit rare, is important as the diagnosis may significantly affect the management considerations. The judicious use of an IHC panel helps to distinguish this tumor from other mimickers.

Comparison of risk prediction scores for cancer-associated thrombosis in ambulatory cancer patients not receiving thromboprophylaxis: A prospective cohort study in a South-East Asian population.

INTRODUCTION: To date, there is limited data regarding the incidence and risk prediction of cancer-associated thrombosis among South-East Asian patients who do not receive thromboprophylaxis. MATERIALS AND METHODS: This was a prospective cohort study conducted at a tertiary medical center from June 2020 to December 2021 in Thailand. We enrolled cancer patients aged ≥ 18 years, with ECOG score ≤ 1, scheduled to receive the first cycle of chemotherapy. We measured incidence of venous thromboembolism (VTE), all-cause mortality and performance of risk prediction scores. RESULTS: A total of 457 patients were included with a mean age of 58.18 ± 12.60 years. By the end of 6 months period, VTE had occurred in 30 patients (6.56 %, 95%CI 4.36-9.21). The median time to the first thrombosis was 1.94 months (IQR 0.26-3.19). Cancer associated thrombosis incidence was 14.58 % for Khorana score ≥ 3, 6.67 % for scores 1-2 and 2.13 % for score 0. C-statistics were 0.50 (95%CI 0.41-0.60) for Khorana score cut-off ≥ 2, 0.57 (95%CI 0.49-0.65) for Khorana score ≥ 3, 0.55 (95%CI 0.46-0.65) for PROTECHT score ≥ 3, and 0.57 (95%CI 0.49-0.65) for CONKO score ≥ 3. Classifying cholangiocarcinoma as very-high-risk increased the Khorana score cut-off ≥ 3's C-statistic to 0.62 (95%CI 0.53-0.71). CONCLUSIONS: A significant proportion of ambulatory South-East Asian cancer patients without thromboprophylaxis developed VTE. Further prospective studies investigating the benefit of thromboprophylaxis in high-risk patients with active cancer are warranted.

Accuracy of frozen-section diagnosis of ovarian mucinous tumors.

OBJECTIVE: The objective of the study was to evaluate the diagnostic accuracy of intraoperative frozen sections of ovarian mucinous tumors and to identify the features associated with an inaccurate diagnosis. METHODS: Cases of ovarian mucinous tumors (benign, low malignant potential [LMP] or borderline, primary malignant, and metastatic) diagnosed by frozen section or final histology were recruited. Frozen-section diagnoses were compared with the final histologic diagnoses. Possible variables associated with diagnostic discrepancy were analyzed. RESULTS: A comparison of the diagnoses was done in 195 cases (102 benign, 61 LMP, 18 primary malignant, and 14 metastatic). Diagnostic agreement was observed in 164 cases (84.1%) and discrepancy in 31 cases (15.9%). The sensitivity of frozen-section diagnosis was low in LMP (67.2%) and malignant tumors (55.6%). The specificity was the lowest in the benign category (78.5%). The positive predictive values of all categories were less than 90% (range, 83.3%-85.7%). Diagnostic discrepancy was associated with tumor size of greater than 13 cm (P = 0.019) and the number of frozen sections of 4 or more (P = 0.035). However, in a multivariate analysis, there was no independent predictor of diagnostic discrepancy. The number of frozen sections 4 or more was strongly associated with tumor size of greater than 13 cm (P = 0.004). CONCLUSIONS: The sensitivity of frozen-section diagnosis of LMP and malignant mucinous tumors was low. The inaccuracy of a frozen-section diagnosis of ovarian mucinous tumors may be related to a tumor size of greater than 13 cm. Increasing the number of intraoperative samples over 3 sections per case may not effectively increase the accuracy of frozen-section diagnosis in mucinous tumors.

Oncology and reproductive outcomes over 16 years of malignant ovarian germ cell tumors treated by fertility sparing surgery.

BACKGROUND: Malignant ovarian germ cell tumors (MOGCT) are rare and frequently occur in women of young and reproductive age and the oncologic and reproductive outcomes after fertility-sparing surgery (FSS) for this disease are still limited. AIM: To evaluate the oncology and reproductive outcomes of MOGCT patients who underwent FSS. METHODS: All MOGCT patients who underwent FSS defined as the operation with a preserved uterus and at least one side of the ovary at our institute between January 2005 and December 2020 were retrospectively reviewed. RESULTS: Sixty-two patients were recruited for this study. The median age was 22 years old and over 77% were nulliparous. The three most common histology findings were immature teratoma (32.2%), dysgerminoma (24.2%), and yolk sac tumor (24.2%). The distribution of stage was as follows; Stage I, 74.8%; stage II, 9.7%; stage III, 11.3%; and stage IV, 4.8%. Forty-three (67.7%) patients received adjuvant chemotherapy. With a median follow-up time of 96.3 mo, the 10-year progression-free survival and overall survival were 82.4% and 91%, respectively. For reproductive outcomes, of 43 patients who received adjuvant chemotherapy, 18 (41.9%) had normal menstruation, and 17 (39.5%) resumed menstruation with a median time of 4 mo. Of about 14 patients who desired to conceive, four were pregnant and delivered good outcomes. Only one case was aborted. Therefore, the successful pregnancy rate was 28.6. CONCLUSION: The oncology and reproductive outcomes of MOGCT treated by FSS are excellent. Many patients show a long survival time with normal menstruation. However, the obstetric outcome is not quite satisfactory.

Prevalence of malnourishment and predictive factors associated with the nutritional status of gynecologic cancer patients undergoing chemotherapy: a cross-sectional analysis.

OBJECTIVE: To investigate the prevalence and predictive factors of malnourishment in patients with gynecologic cancer during chemotherapy. METHODS: A total of 101 patients treated with chemotherapy between April 2020 and February 2021 were interviewed using the patient-generated subjective global assessment (PG-SGA). Clinical and laboratory data were also collected. The total number of lymphocytes per cubic milliliter (total lymphocyte count, TLC) and serum albumin were calculated to provide an optimal cut-off point using receiver operating characteristic curves. Clinicopathological variables were compared using univariate and multivariate analyses to identify the independent predictive factors for malnourishment. RESULTS: The prevalence of good, moderate, and severe nourishment was 73.3%, 18.8%, and 7.9%, respectively. The optimal cut-off points for TLC and albumin were 1,450 cells/µL and for albumin was 3.9 g/dL. Univariate analysis indicated that the number of chemotherapy cycles ≤3, albumin level ≤3.95 g/dL, body mass index ≤25 kg/m2, TLC <1,450 cells/µL, anemia, and no neutropenia were significantly associated with malnutrition. However, only a serum albumin level ≤3.95 g/dL was independently associated with malnourishment. CONCLUSION: Patients with gynecologic cancer treated with chemotherapy were occasionally found to be malnourished, with the independent predictive predictor being a blood albumin level less than or equal to 3.95 g/dL.

Effectiveness of enhanced recovery after surgery protocol in open gynecologic oncology surgery: A randomized controlled trial.

OBJECTIVE: To examine the effectiveness of applying the recommended enhanced recovery after surgery (ERAS) protocol compared with our usual care in women with gynecologic malignancy undergoing elective laparotomy. METHODS: From June 2020 to May 2021, 93 women with gynecologic cancers (cervix, endometrium, and ovary) undergoing elective laparotomy at our institution were randomly assigned into an intervention group (ERAS protocol, 46 women) or control group (usual care, 47 women). For the intervention group, each woman was brought through the pre-specified ERAS protocol starting from preoperative counseling to postoperative management. For the control group, participants underwent routine standard care. The primary outcomes were length of hospital stay and postoperative pain. RESULTS: The intervention group demonstrated shorter hospital stay by 20 h (47.48 h vs 67.17 h, P = 0.02) with lower postoperative pain score at postoperative day 0 (1.58 vs 4.00, P < 0.01) and day 1 (1.00 vs 2.67, P < 0.01) while having decreased opioid consumption (P < 0.01). The intervention group also had faster recovery of gastrointestinal function. Overall, good compliance to most of the ERAS pathway domains was obtained. CONCLUSION: The ERAS protocol demonstrates benefits on shortening hospital stay, reducing pain, and bowel function recovery without increasing complications in our population. CLINICAL TRIAL REGISTRATION: The present study was registered at clinicaltrials.gov (NCT04201626) on December 3, 2019. Initial participant enrollment began on June 1, 2020. Access through URL of the registration site: https://clinicaltrials.gov/ct2/show/NCT04201626?cond=ERAS&cntry=TH&draw=2&rank=3.

Ovarian involvement of epithelioid trophoblastic tumor: a case report.

Epithelioid trophoblastic tumor (ETT) is an uncommon type of gestational trophoblastic neoplasia originating from the chorionic-type intermediate trophoblast. To our knowledge, ovarian involvement of ETT with initial presentation as an ovarian tumor has not been reported. A 32-year-old woman presented with a 9-cm left ovarian mass. No clinical evidence of uterine involvement was identified at diagnosis or follow-up. The patient had a previous history of hydatidiform mole treated with suctional curettage 5 years before. Ovarian involvement of ETT can be challenging to pathologists and may be potentially confused with ovarian epithelial carcinoma, particularly of clear cell differentiation.

Mucinous tumor of low malignant potential ("borderline" or "atypical proliferative" tumor) of the ovary: a study of 171 cases with the assessment of intraepithelial carcinoma and microinvasion.

Mucinous tumors of the ovary are a continuing source of controversy in the field of gynecologic pathology. We examined a series of 171 intestinal-type mucinous tumors of low malignant potential ("borderline" or "atypical proliferative" tumors) to clarify the clinical significance of intraepithelial carcinoma (IECA) and microinvasion (area ≤ 10 mm²). The diagnosis of IECA was based on the presence of marked nuclear atypia (grade 3). Stromal microinvasion was classified as low grade and high grade (with nuclear grade 3). IECA was observed in 67 of 171 cases (39.2%). Microinvasion was identified in 31 (18.1%) cases, low grade in 22 (12.9%) cases, and high grade in 9 (5.3%) cases. Follow-up status was known in 144 cases and tumor recurrence was observed in 6 patients (4.2%). The risk factors for recurrence included International Federation of Gynecology and Obstetrics stage ≥ IC (P=0.002), microinvasion (P=0.013), age less than 45 years (P=0.032), and IECA (P=0.042). The amount of IECA ≥ 10% was also associated with the risk of recurrence (P=0.007). Among tumors with microinvasion, there was no significant association between the clinicopathologic variables and recurrence. When considering tumors with stage ≥ IC, tumor recurrence was significantly associated with IECA ≥ 10% (P=0.031) and age less than 45 years (P=0.047). It is important that mucinous tumors of low malignant potential should be staged and be optimally sampled for pathologic examination to document the status of the external surface or peritoneal involvement and to identify the worst degree of epithelial proliferation. Tumor stage ≥ IC, IECA ≥ 10%, microinvasion, and age less than 45 years were the features that were associated with tumor recurrence. The study results also support the use of nuclear grade 3 as the sole criterion of IECA.

Accuracy of the Wallach Endocell endometrial cell sampler in diagnosing endometrial carcinoma and hyperplasia.

AIM: To assess the accuracy of the Wallach Endocell endometrial cell sampler in diagnosing endometrial carcinoma and hyperplasia. METHODS: Women aged over 35 years old with abnormal uterine bleeding who came to Chiang Mai University Hospital between June 2008 and June 2009 were invited to participate in this study if they were candidates for the fractional curettage procedure. All patients underwent endometrial sampling prior to endometrial curettage. The endometrial samples from both procedures were separately evaluated by different pathologists. The accuracy of the Wallach Endocell device in diagnosing endometrial carcinoma and hyperplasia was calculated by comparison with the final histology. When the results from both procedures were not identical, the final diagnosis was reported according to the consensus of the pathologists. Tissue adequacy was also determined. RESULTS: During the study period, 202 patients were recruited into this study. The sensitivity, specificity, false negative rate and false positive rate of the Wallach Endocell in diagnosing endometrial carcinoma and hyperplasia were 60.00%, 99.46%, 40.00% and 0.54%, respectively. Of 13 patients with endometrial hyperplasia, six were not detected by the Wallach Endocell device. All endometrial carcinomas were detected by the endometrial sampling procedure. Tissue adequacy from the Wallach Endocell device was 85.6%. The positive predictive value and negative predictive value were 95.00% and 92.85%, respectively. CONCLUSIONS: The Wallach Endocell is an effective device for diagnosing endometrial carcinoma; however, the results of endometrial sampling should be interpreted with caution because of a high false negative rate in detecting endometrial hyperplasia.

Clinical significance of atypical glandular cells on Pap smears: experience from a region with a high incidence of cervical cancer.

AIM: To evaluate the histopathology of women who had atypical glandular cells (AGC) on Pap smears in a region with high incidence of cervical cancer. MATERIAL AND METHODS: This study was conducted at Chiang Mai University Hospital, Chiang Mai, Thailand. All women with AGC who underwent colposcopic and histopathologic evaluation between January 2002 and December 2008 were reviewed. Women with simultaneous diagnosis of squamous cell abnormality or prior history of cancer of any type were excluded. RESULTS: Sixty-three women with AGC Pap test had histologic follow-up during the study period. Mean age was 44.9 years (range, 31-72 years). Six (9.5%) women were nulliparous. Sixteen (25.4%) women were postmenopausal. The histopathologic results of these 63 women were as follows: cervical intraepithelial neoplasia (CIN) 2-3, 5 (7.9%); adenocarcinoma in situ (AIS), 3 (4.8%); endometrial cancer, 3 (4.8%); cervical cancer, 2 (3.2%); endometrial hyperplasia (EH), 1 (1.6%); and no lesions, 49 (77.8%). The prevalence of significant lesions (CIN 2-3, AIS, EH, and cancer) in women with atypical glandular cells, favor neoplasia (AGC-FN) was significantly higher than that in the atypical glandular cells, not other specified (AGC-NOS) group (41.2% and 15.2%, P = 0.02). CONCLUSION: Reporting AGC in our population is clinically significant due to the high prevalence of underlying preinvasive and invasive diseases (22.2%). This subtype of the AGC category is a significant predictor of such lesions.

Clinicopathological Prognostic Factors Influencing Survival Outcomes of Vulvar Cancer.

BACKGROUND: The prognostic factors for survival in squamous cell carcinoma (SCCA) of vulva cancer such as groin node involvement, postmenopausal status, tumor size, margin status, tumor grade, lymph vascular space invasion (LVSI) were reported in the past. However, with limited data from Southeast - Asian population, the present study was conducted to evaluate the clinicopathological prognostic factors for survival outcomes of this disease after treatment with surgery. METHODS: All SCCA vulva cancer patients who underwent surgery between January 2006 and December 2017 were reviewed. The clinicopathological factors were analyzed to identify the prognostic factors for the progression-free survival (PFS) and overall survival (OS) using the Kaplan- Meier method and Cox-Proportional Hazard model. RESULTS: One hundred twenty-five patients were recruited. The independent poor prognostic factors for PFS were groin node-positive and  pathologic tumor diameter of more than 25 mm. Whereas postmenopausal status and groin node positive were independent poor prognostic factors for OS. CONCLUSION: Groin node-positive was the only one independent poor prognostic factor for both PFS and OS. In addition, the tumor diameter longer than 25 mm. was independent poor prognostic factors for PFS while postmenopausal status was independent poor prognostic factors for OS. Special adjuvant treatment for patients with these factors should be further investigated. 
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iPMI: Machine Learning-Aided Identification of Parametrial Invasion in Women with Early-Stage Cervical Cancer.

Radical hysterectomy is a recommended treatment for early-stage cervical cancer. However, the procedure is associated with significant morbidities resulting from the removal of the parametrium. Parametrial cancer invasion (PMI) is found in a minority of patients but the efficient system used to predict it is lacking. In this study, we develop a novel machine learning (ML)-based predictive model based on a random forest model (called iPMI) for the practical identification of PMI in women. Data of 1112 stage IA-IIA cervical cancer patients who underwent primary surgery were collected and considered as the training dataset, while data from an independent cohort of 116 consecutive patients were used as the independent test dataset. Based on these datasets, iPMI-Econ was then developed by using basic clinicopathological data available prior to surgery, while iPMI-Power was also introduced by adding pelvic node metastasis and uterine corpus invasion to the iPMI-Econ. Both 10-fold cross-validations and independent test results showed that iPMI-Power outperformed other well-known ML classifiers (e.g., logistic regression, decision tree, k-nearest neighbor, multi-layer perceptron, naive Bayes, support vector machine, and extreme gradient boosting). Upon comparison, it was found that iPMI-Power was effective and had a superior performance to other well-known ML classifiers in predicting PMI. It is anticipated that the proposed iPMI may serve as a cost-effective and rapid approach to guide important clinical decision-making.