Publications by authors named "Jakkapan Khunnarong"

Objectives: To evaluate the type of salvage treatment and outcomes of patients with locally advanced cervical cancer who failed treatment with concurrent chemoradiation with or without adjuvant chemotherapy.

Methods: This was post hoc analyses of data from the randomized trial which included 259 patients who had FIGO stage IIB-IVA and had either pelvic radiation therapy concurrent with cisplatin followed by observation or paclitaxel plus carboplatin. Data of the patients who failed primary treatment were collected: type of salvage treatments, time to progress after salvage therapy, progression-free (PFS) and overall survivals (OS).

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Objectives: To evaluate sites of failure and long-term survival outcomes of locally advanced stage cervical cancer patients who had standard concurrent chemo-radiation (CCRT) versus those along with adjuvant chemotherapy (ACT) after CCRT.

Methods: Patients aged 18-70 years who had FIGO stage IIB-IVA without para-aortic lymph node enlargement (excluding by International Federation of Gynecology and Obstetrics (FIGO) 2018 stage IIIC2r), The Eastern Cooperative Oncology Group (ECOG) scores 0-2, and non-aggressive histopathology were randomized to have CCRT with weekly cisplatin followed by observation (arm A) or ACT with paclitaxel plus carboplatin every 4 weeks for 3 cycles (arm B).

Results: From 2015-2017, 259 patients were evaluated.

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Background: This study aimed to evaluate the treatment outcomes of cervical intraepithelial neoplasia (CIN) or cancer patients who underwent loop electrosurgical excision procedure (LEEP) in terms of primary outcome and factors associated with persistence/recurrence.

Methods: Patients with CIN or cancer who underwent LEEP from January 2007 to December 2015 were reviewed. Data collected were age, parity, menopausal status, human immunodeficiency virus (HIV) infection, smoking, cervical cytology, histopathology from cervical biopsy and LEEP including margin status, final histopathology, and follow-up data.

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Introduction: This study aimed to compare the cost utility of concurrent chemoradiation (CCRT) to CCRT followed by adjuvant chemotherapy (CCRT/ACT) in locally advanced cervical cancer (LACC) using provider and societal viewpoints.

Methods: Data from our trial which was a multi-centre study evaluating the efficacy of ACT compared to CCRT/ACT were entered into a decision tree model. The data included clinical probability, direct medical and non-medical costs, and utility obtained from the patients.

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Article Synopsis
  • The study aimed to evaluate the effectiveness of adding adjuvant chemotherapy (ACT) after standard concurrent chemoradiation therapy (CCRT) in patients with locally advanced cervical cancer.
  • No significant difference in response rates or survival outcomes was observed between patients who received only CCRT and those who also received ACT, although systemic recurrences were lower in the ACT group.
  • The findings suggest that adding ACT does not enhance overall treatment effectiveness compared to CCRT alone, despite some benefits in reducing systemic recurrences.
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Purpose: To evaluate the expression of p16 and Ki67 in cervical intraepithelial neoplasia (CIN) and cancer.

Materials And Methods: We performed a immunohistochemical study of p16 and Ki67 in 243 cervical tissues 53 nondysplastic lesions, 106 CIN1, 61 CIN2/3 and 23 squamous cell carcinomas. The expression of p16 and Ki67 was interpreted independently by 2 researchers and the sensitivity and specificity to detect clinically significant lesions (≥ CIN2) were determined.

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Background: Many strategies are required for cervical cancer reduction e.g. provision of education cautious sexual behavior, HPV vaccination, and early detection of preinvasive cervical lesions and invasive cancer.

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Background: To evaluate knowledge of Bangkok women regarding HPV and self-sampled HPV testing, and their attitudes towards testing.

Materials And Methods: Thai women who had lived in Bangkok for more than 5 years, aged 25-to-65 years old, were invited to join the study. Participating women were asked to a complete self-questionnaire (Thai language), with literate assistance as needed.

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Background: Uterine sarcoma is a group of rare gynecologic tumors with various natures, and different lines of treatment. Most have a poor treatment outcome. This study targeted clinical characteristics, treatment, overall survival (OS), progression-free survival (PFS), and prognostic factors in uterine sarcoma patients in one tertiary center for cancer care.

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Purpose: To assess knowledge, attitudes and cervical cancer screening behavior of Bangkok Metropolitan women.

Materials And Methods: Thai women, aged 25-to-65 years old, having lived in Bangkok for 5 years or more were invited to participate in the study. After signing informed consent, all women were asked to complete a self-questionnaire (Thai language) with literate assistance if needed.

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Background: To evaluate the prevalence and features of other gynecologic or surgical lesions in endometrial cancer (EMC) patients.

Materials And Methods: Clinico-pathological data of EMC patients who were treated in the institution from 1995 to 2012 were collected. Data collected were age, stage of disease according to the FIGO 2009 criteria (FIGO), histopathology, tumor grade, adjuvant therapy, other gynecologic or surgical lesions, follow-up period, and living status.

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Objective: To evaluate the prevalence and features of non-endometrial cancers in Thai endometrial cancer (EC) patients.

Methods: EC patients treated in our institution were identified and the following data were collected: age, EC stage, histopathology, adjuvant therapy, other cancers, living status, and cause of death.

Results: The mean age of the 344 patients was 56.

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Aim: The aim of this study was to evaluate the use of adjuvant therapy and treatment outcomes in patients with endometrial cancer (EMC).

Methods: Patients with EMC treated in the institution were identified. Data collected were age, stage of disease, histopathology, and adjuvant therapy.

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Objectives: The aim of this study was to evaluate the prevalence and types of medical morbidities in Thai endometrial cancer (EMC) patients and their impact on treatment outcomes.

Methods: The EMC patients treated in the institution from 1995 to 2012 and with available medical history were identified. Data collected were age; medical morbidities; tumor stage, histopathology, and grade; adjuvant therapy; living status; and cause of death.

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Background: To study the response rate (RR), progression-free survival (PFS) and toxicity profiles of recurrent epithelial ovarian cancer (EOC) patients treated with gemcitabine.

Materials And Methods: Recurrent EOC patients who were treated with gemcitabine between January 2000 and December 2013 at the Department of Obstetrics and Gynecology, Faculty of Medicine Vajira Hospital were identified and medical records were reviewed. Clinico-pathological features including data of gemcitabine treatment, response and toxicity were collected.

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Article Synopsis
  • The study aimed to compare clinical features and survival rates of endometrial cancer patients using the 1988 and 2009 FIGO staging systems.
  • Data was collected from 259 patients treated between 1992 and 2008, revealing changes in staging, with most patients categorized in lower stages under the new system.
  • While early stage survival rates declined for new stages IA and IB, other stage survivals remained similar between the two systems, indicating the need for ongoing evaluation of staging impact on treatment outcomes.
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Background: To study the response rate, toxicity profiles, and survival of refractory or recurrent epithelial ovarian cancer (EOC) patients treated with paclitaxel.

Materials And Methods: Patients with refractory or recurrent EOC who were treated with paclitaxel between January 2002 and December 2011 at the Department of Obstetrics and Gynecology, Faculty of Medicine, Vajira Hospital were identified. Clinicopathological features of the patients including detailed data of paclitaxel treatment were collected.

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Objective: To compare clinicopathological features, including hormonal receptor expression and survival, in young Thai endometrial carcinoma (EMC) patients with older patients.

Methods: Young EMC patients aged ≤45 years, treated in the institution from 1992 to 2008, were identified as cases. Controls included EMC patients aged >45 years who had an operation on the nearest dates to the cases.

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Objective: To assess the characteristic features, treatment, survival, and prognostic factors of Thai endometrial cancer (EMC) patients.

Methods: Clinico-pathological data of EMC patients who were treated in the institution from 1992 to 2008 were collected. Survival rates and prognostic factors were studied.

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Objective: To determine any association between expression of estrogen receptor (ER), progesterone receptor (PR), and Her-2/neu and clinicopathological features, including survival, of endometrial carcinoma (EMC) patients.

Methods: Samples of formalin-fixed, paraffin-embedded tissue of 108 patients with EMC treated at our institution between January 1994 and December 2007 were immunohistochemically studied.

Results: ER, PR, and Her-2/neu expression were positive in 59.

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Background: To examine the rate and degree of expression of Cyclooxygenase-1 (COX-1) and Cyclooxygenase-2 (COX-2) in epithelial ovarian cancer (EOC) and associated with clinicopathological factors and survival.

Methods: EOC patients being treated in our institute with available pathological tissue sections during 1996-2003 were identified. Immunohistochemical staining with antibody to COX-1 and COX-2 were studied.

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Objectives: To compare preoperative clinico-pathological findings and clinical staging of endometrial cancers (EMC) with postoperative surgico-pathological findings and final surgical staging.

Materials And Methods: All EMC patients who underwent surgical staging between January 1993 and December 2008 were identified from the tumor registry of the Gynecologic Oncology Unit, Department of Obstetrics and Gynecology, of our institution. Clinico-pathological data were extracted from the patients' charts and pathological reports, including clinical stage assignments before the operation, and compared to the surgico-pathological findings.

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Although estrogen (ER) and progesterone (PR) receptors are well recognized as important prognostic indicators of breast and endometrial cancers, their clinical significance in epithelial ovarian cancer is not clear with the limited data from only few immunohistochemical studies. The aim of this study was to evaluate the expressions of ER and PR in patients with epithelial ovarian cancer who were treated in our institution during the period 1996 to 2003. Their associations with clinicopathologic factors of age, stage, histologic subtypes, and grade and their prognostic role to survivals were also examined.

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Objective: To determine immunohistochemical expression of cyclooxygenase-1 (COX-1) in epithelial ovarian cancer (EOC), and its association with clinical features and prognosis.

Methods: EOC patients treated in Bangkok Metropolitan Administration Medical College and Vajira Hospital during 1996-2003, and with available pathological tissue sections, were identified. Immunohistochemical staining was accomplished with antibodies to COX-1 and degree of expression was categorized into low and high for assessment of any.

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To determine the prevalence and factors associated with histologic diagnoses of High Grade Squamous Intraepithelial Lesions (HSIL) or invasive cervical cancer in women with a cytologic diagnosis of atypical squamous cells of undertermined significance (ASCUS), medical records of women with an ASCUS Pap smear from January 2003 to December 2006 were reviewed. Of 287 women with ASCUS Pap smears in whom data were available, 189 were annotated with "favoring a premalignant or malignant process", 74 with "favoring reactive", and 24 with "not otherwise specified". The prevalences of HSIL and invasive cervical cancer were 9.

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