Pattama Chaopotong
Mahidol University
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Featured researches published by Pattama Chaopotong.
Case Reports in Oncology | 2009
Mongkol Benjapibal; Suthi Sangkarat; Somsak Laiwejpithaya; Boonlert Viriyapak; Pattama Chaopotong; Atthapon Jaishuen
An elevated serum CA125 level in association with a pelvic mass, pleural effusion, and massive ascites usually signifies a dismal prognosis in a postmenopausal woman. However, surgery and histopathological examination are required for the correct diagnosis and treatment, since an elevated CA125 level can be falsely positive for ovarian malignancy. We present a case of Meigs’ syndrome due to right ovarian fibroma with elevated CA125 level in a postmenopausal woman.
Journal of Obstetrics and Gynaecology Research | 2010
Mongkol Benjapibal; Pattama Chaopotong; Chairatana Leelaphatanadit; Atthapon Jaishuen
Pregnancy complicated by endodermal sinus tumor of the ovary is a very rare event. We present a case report of a pregnant woman with a ruptured primary endodermal sinus tumor of the ovary that was diagnosed at 13 weeks of gestation. After right salpingo‐oophorectomy had been performed the patient received four cycles of combination chemotherapy (bleomycin, etoposide, and cisplatin) starting at the 15th week of pregnancy. The patient did not have any evidence of tumor recurrence for 23 months. Her baby did not have any evidence of malformations and showed normal growth and development at 21 months of follow up.
Asian Pacific Journal of Cancer Prevention | 2014
Atthapon Jaishuen; Kate Kunakornporamat; Boonlert Viriyapak; Mongkol Benjapibal; Pattama Chaopotong; Janjira Petsuksiri; Suwanit Therasakvichya
BACKGROUND To study the incidence of non-endometrioid carcinoma of endometrium and compare the clinical characteristics and treatment outcomes with endometrioid carcinoma patients. MATERIALS AND METHODS This study included 236 patients with endometrial carcinoma at Siriraj Hospital whom were diagnosed and treated from 2003 through 2006. The clinical characteristics, pathological features, treatment and clinical outcomes were collected from the medical records. The 5-year survival was calculated according to 2009 FIGO staging. RESULTS Non-endometrioid carcinoma of endometrium accounted for 10.2% of all endometrial carcinomas (24/236 patients). The 5 -year survival rate was significantly lower in the non-endometrioid group compared to the endometrioid group (77.3% vs 96%, p<0.001) and clinical data pointed to greater malignancy. CONCLUSIONS Non-endometrioid carcinoma of endometrium is relative rare but is more aggressive, has more distant metastasis at diagnosis with a worse survival rate than endometrioid carcinoma. Only patients in stage IA with no residual disease on a hysterectomy specimen may not need adjuvant treatment.
Asian Pacific Journal of Cancer Prevention | 2015
Pattama Chaopotong; Suwanit Therasakvichya; Chairat Leelapatanadit; Atthapon Jaishuen; Sompop Kuljarusnont
OBJECTIVE To review ovarian cancer cases in children and adolescents in Siriraj Hospital and assess the prognosis, recurrence of disease, and reproductive outcomes after treatment. MATERIALS AND METHODS A retrospective descriptive study was conducted in ovarian cancer patients 21 years and younger who had been treated at Siriraj Hospital between January 1990 and December 2009. Medical records were reviewed and relevant data were recorded. RESULTS A total of 48 cases met the criteria; their mean age was 16.4 years. Abdominal distension was the major symptom. 91.6% were germ cell tumors and the remaining cases were sex cord-stromal and epithelial tumors. More than half (25/48 cases) presented with stage I disease. The most common used chemotherapy regimen for germ cell tumors was BEP (bloemycin, etoposide, cisplatin). Most of patients had favorable outcomes; 46/48 cases had complete remission and retained their good health at the time of the review. We had only one recurrent case and one dead case. Ten of contacted patients had married and 3 of them had successful full-term pregnancies. CONCLUSIONS Ovarian malignancy in children and adolescents is a rare disease. The authors reported 48 cases in 20 year-period of work. Most of them have favorable outcomes. Return of ovarian function and fertility are the topics of interest.
Asian Pacific Journal of Cancer Prevention | 2014
Suthi Sangkarat; Somsak Laiwejpithaya; Manee Rattanachaiyanont; Pattama Chaopotong; Mongkol Benjapibal; Weerasak Wongtiraporn; Sujera Laiwejpithaya
BACKGROUND To evaluate the performance of Siriraj liquid-based cytology (LBC) for cervical neoplasia screening after increasing use of this technology. MATERIALS AND METHODS Cytological reports of 103,057 Siriraj-LBC specimens obtained in 2007-2009 were compared with those of 23,676 specimens obtained in 2006. RESULTS Comparing with the year 2006, the 2007-2009 patients were slightly older (43.4 ± 12.yr vs 42.7 ± 12.2 yr, p <0.001), and their specimens had much lower proportion of unsatisfactory slides (OR=0.06, 95%CI 0.04-0.09) with comparable detection rates (3.96% vs 3.70%, p=0.052) but different proportions of various cytological abnormalities (p<0.001). The 2007-2009 Siriraj-LBC had a negative predictive value (NPV) for cervical intraepithelial neoplasia 2+ (CIN2+) of 97.6% and an overall positive predictive value (PPV) of 43.9%. The PPV for CIN2+ varied with types of abnormal cytology, from 13.7% to 93.8% in atypical squamous cells of undetermined significance (ASCUS), low-grade squamous intraepithelial lesion (LSIL), atypical squamous cells cannot exclude HSIL (ASC-H), high-grade squamous intraepithelial lesion (HSIL), atypical glandular cells (AGC), to squamous cell carcinoma (SCC), respectively. The PPVs for CIN2+ in ASCUS and LSIL were comparable, but the PPV for CIN1 was higher for LSIL than for ASCUS (41.63% vs 16.32%). CONCLUSIONS Siriraj-LBC has demonstrated a stable detection rate and NPV for CIN2+ of >95% since the first year of use. The comparable PPVs for CIN2+ of ASCUS and LSIL suggests that these two conditions may undergo similar management; other cytological abnormalities need immediate evaluation.
Asian Pacific Journal of Cancer Prevention | 2014
Weerasak Wongtiraporn; Somsak Laiwejpithaya; Suthi Sangkarat; Mongkol Benjapibal; Manee Rattanachaiyanont; Irene Ruengkhachorn; Pattama Chaopotong; Sujera Laiwejpithaya
AIM To report long term outcomes of laser conization for high grade cervical intraepithelial neoplasia (CIN) in Thai women. MATERIALS AND METHODS A retrospective cohort study was conducted in patients undergoing laser conization due to abnormal cervical cytology suggesting neoplasia during 1989 to 1994 and having follow-up data until December 2010. Conization was performed under colposcopy using a 0.5-mm CO2 laser beam with power density of 18,000-20,000 watts/cm2, and the surgical base was vaporized using a low power defocused beam. The follow-up protocol included cervical cytology and colposcopy. Long term outcome measures were failure rate (persistence and recurrence), post-conization status of transformation zone, and obstetric outcomes. RESULTS Of 104 patients undergoing conization, 71 had therapeutic conization for high grade CIN and were followed up for a median time of 115 (range 12-260) months. There was one case of persistent and one of recurrent disease comprising a failure rate of 2.8%. The post treatment transformation zone was well visualized in 68.3% of 63 patients with an intact uterus. Sixteen patients achieved 25 pregnancies; none had second trimester miscarriage. The obstetric outcomes were unremarkable. CONCLUSIONS Laser conization under colposcopic visualization for the treatment of high grade CIN in Thai women has a low failure rate of 2.8%. The post-conization transformation zone could not be evaluated completely in approximately 30% of cases; therefore the follow-up protocol should include both cytology and colposcopy. Obstetric outcomes are not adversely affected by this therapeutic procedure.
Asian Pacific Journal of Cancer Prevention | 2012
Irene Ruengkhachorn; Somsak Laiwejpithaya; Chairat Leelaphatanadit; Pattama Chaopotong
OBJECTIVES The purposes of this study were to determine the prevalence and predictive value to detect significant neoplasia and invasive lesions, and to evaluate the correlation between clinical and histopathology of women with squamous cell carcinoma (SCCA) on Siriraj liquid-based cervical cytology (Siriraj-LBC). METHODS The computerized database of women who underwent Siriraj-LBC at Siriraj Hospital, Mahidol University from January 2007 to December 2010 were retrieved. The hospital records of women with SCCA cytology were reviewed. RESULTS The prevalence of SCCA cytology was 0.07%. A total of 86 women, mean age was 58.1 years. Sixty-one women (70.9%) were post-menopausal. Overall significant pathology and invasive gynecologic cancer were detected in 84 women (97.7%) and 71 women (82.5%), respectively. The positive predictive values for detection of significant neoplasia and invasive lesion were 97.7% and 82.6%, respectively. The cervical cancer was diagnosed in 69 women and among these 58 women were SCCA. Thirteen women (15.1%) had cervical intraepithelial neoplasia (CIN) 3 and two women (2.3%) had cervicitis. The sensitivity and specificity of colposcopy for cervical cancer detection in SCCA cytology were 83.3% and 75%, respectively. Median follow up period was 17.6 months and 64 patients were alive without cytologic abnormality. CONCLUSIONS The final histopathology of SCCA cytology in our populations demonstrated a wide variety, from cervicitis to invasive cancer and the most common diagnosis was invasive cervical cancer. Colposcopy with biopsy and/or endocervical curettage and loop electrosurgical excision procedure should be undertaken to achieve histologic diagnosis.
Journal of Gynecologic Oncology | 2016
Suwanit Therasakvichya; Sompop Kuljarusnont; Janjira Petsuksiri; Pattama Chaopotong; Vuthinun Achariyapota; Pisutt Srichaikul; Atthapon Jaishuen
Objective To evaluate the recurrence rates and patterns of failure in patients with stage I endometrial carcinoma after surgical staging without adjuvant therapy. Methods Medical records of 229 patients with stage I endometrial carcinoma, treated with surgery alone between 2002 and 2010 at Siriraj Hospital were retrospectively reviewed. The primary objective of this study was recurrence rates. The secondary objectives were patterns of failure, disease-free survival, overall survival, and prognostic factors related to outcomes. Results During median follow-up time of 53.3 months, 11 recurrences (4.8%) occurred with a median time to recurrence of 21.2 months (range, 7.7 to 77.8 months). Vaginal recurrence was the most common pattern of failure (8/11 patients, 72.7%). Other recurrences were pelvic, abdominal and multiple metastases. Factors that appeared to be prognostic factors on univariate analyses were age and having high intermediate risk (HIR) (Gynecologic Oncology Group [GOG] 99 criteria), none of which showed significance in multivariate analysis. The recurrence rates were higher in the patients with HIR criteria (22.2% vs. 4.1%, p=0.013) or patients with stage IB, grade 2 endometrioid carcinoma (9.4% vs. 4.3%, p=0.199). Five-year disease-free survival and 5-year overall survival were 93.9% (95% CI, 89.9 to 5.86) and 99.5% (95% CI, 97.0 to 99.9), respectively. Conclusion The patients with low risk stage I endometrial carcinoma had excellent outcomes with surgery alone. Our study showed that no single factor was demonstrated to be an independent predictor for recurrence.
FEBS Open Bio | 2018
Tawin Iempridee; Suphachai Wiwithaphon; Kitiya Piboonprai; Pornpitra Pratedrat; Phattharachanok Khumkhrong; Deanpen Japrung; Sasithon Temisak; Somsak Laiwejpithaya; Pattama Chaopotong; Tararaj Dharakul
Circulating lncRNAs have attracted considerable attention as potential noninvasive biomarkers for diagnosing cancers. RT‐qPCR is the canonical technique for detecting circulating RNA and depends largely on stable reference genes for data normalization. However, no systematic evaluation of reference genes for serum lncRNA has been reported for cervical cancer. Here, we profiled and validated lncRNA expression from serum of cervical cancer patients and controls using microarrays and RT‐qPCR. We identified lncRNA RP11‐204K16.1, XLOC_012542, and U6 small nuclear RNA as the most stable reference genes based on geNorm, NormFinder, BestKeeper, delta Ct, and RefFinder. These genes were suitable also for samples from different age groups or with hemolysis. Additionally, we discovered lncRNA AC017078.1 and XLOC_011152 as candidate biomarkers, whose expression was down‐regulated in cervical cancer. Our findings could aid research on circulating lncRNA and the discovery of blood‐based biomarkers for cervical cancer diagnosis.
Asian Pacific Journal of Cancer Prevention | 2018
Nissana Singhakum; Somsak Laiwejpithaya; Pattama Chaopotong
Objective: Various screening methods for cervical cancer are proved to be effective in reducing such type of cancer. We aims to introduce a new portable device as an alternative method for cervical cancer screening. The performance of device was tested on the assessment of cervical lesions using cervicograph score with the cervical cytology. Methods: 325 non-pregnant women were tested from March 2013 to August 2015. The cervical and vaginal cells from the sample were collected for cytology, then all of them received the digital cervicography conducted with our new device and scored using cervicograph score. Small pieces of cervical tissues were also collected for histologic examination. SPSS software version 18.0 was used for the statistical analysis. Results: We grouped cytology results and cervicograph scores to 2 subgroups, ≤ ASC-US and ≥ LSIL, and 0-3 points and 4-6 points, respectively. The data then correlated with histology results which sub-grouped to ≤ CIN 1 and ≥ CIN 2. The accuracy, sensitivity, specificity, and positive predictive value (PPV) of cervicograph scores 4-6 points to detect CIN 2+ were 92%, 72.41%, 97%, and 84%, respectively which were not inferior to Pap smear did. Conclusion: The digital cervicography device provides similar accuracy to Pap cytology screening and is suitable to use in the area that lacks cytoscreeners. Large scale use and generalization are required for this new device.