Publications by authors named "Gatot Purwoto"

Over the past decades, immune checkpoint inhibitors (ICIs) have shown dramatic efficacy in improving survival rates in multiple malignancies. Recently, gynecological cancer patients also showed to respond favorably to ICI treatment. This study aimed to evaluate the efficacy, safety, and patient-reported outcomes of ICI therapy in gynecological cancers.

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Article Synopsis
  • Ovarian cancer often presents chemoresistance challenges due to the presence of cancer stem cells (CSCs) and specific protein expression patterns, which are linked to poor outcomes in patients.
  • A study involving 64 patients in Indonesia analyzed the expressions of CD44/CD24 (CSCs), RAD6, and DDB2 in ovarian cancer tissues to build a predictive scoring system for chemoresistance.
  • Results indicated a significant relationship between increased CSC and RAD6 expressions and decreased DDB2 expression with chemoresistance, leading to the development of the IHC-UNEDO scoring method as a potential predictive tool.
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Background: Sexual function is one component of quality of life that could be fulfilled by humans. Hysterectomy, which is an operative procedure in women, may cause disturbance in sexual function.

Aim: This study aims to determine the surveillance of sexual function after hysterectomy.

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Introduction: Yolk sac tumor is the second most common germ cell ovarian carcinoma. Neoadjuvant chemotherapy (NACT) is proposed as an alternative option for patients with advanced disease who are not eligible for primary debulking. We presented a case with a systematic review of advanced yolk sac tumors of the ovary with poor performance who gain benefit from NACT.

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Background: ALDH1 is a cervical cancer stem cell marker that has radioresistance profile. Recurrence and metastasis following radiotherapy are still being problems of most patients. This study aimed to determine the correlation between ALDH1 and radiotherapy response in stage III squamous cell cervical carcinoma (SCCC) of the cervix.

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Background: Given the role of inflammation in carcinogenesis, this study investigated the utility of pre-treatment inflammatory markers as associative indicators for advanced-stage disease, lymph node metastasis (LNM), and distant metastasis (DM) in vulvar cancer (VC).

Methods: A cross-sectional study was conducted on 86 women with VC in a single centre in Jakarta, Indonesia. The laboratory data was based on C-reactive protein (CRP), procalcitonin, the erythrocyte sedimentation rate (ESR) and fourteen derived, recorded and calculated ratios: leukocyte-to-platelet (LPR), neutrophil-to-lymphocyte (NLR), derived neutrophil-to-lymphocyte (dNLR), neutrophil-to-monocyte (NMR), platelet-to-monocyte (PLR), lymphocyte-to-monocyte (LMR), basophil-to-monocyte (BLR), systemic immune-inflammation index (SII), body mass index, albumin, and NLR (BAN) score, haemoglobin-to-platelet (HPR), prognostic nutritional index (PNI), modified Glasgow Prognostic Score (mGPS), CRP-to-albumin, and CRP-to-procalcitonin.

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Article Synopsis
  • The standard treatment for ovarian cancer is often ineffective, highlighting the role of Cancer Stem Cells (CSCs) that express CD44/CD24 in contributing to chemoresistance and poor outcomes.
  • A study involving 64 patients underwent surgery and chemotherapy, assessing CSC expression through direct tissue analysis and blood tests, revealing a significant link between high CSC levels and treatment resistance.
  • The findings suggest that increased expression of CSCs is strongly associated with chemoresistance, and utilizing immunohistochemistry for CSC detection may improve predictive capabilities in ovarian cancer prognosis.
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Backgrounds: Ovarian cancer is the 8th deadliest common cancer in women around the world. Almost all ovarian cancer patients would experience chemoresistance, recurrence, and poor prognosis after cytoreductive surgery and platinum-based chemotherapy. Chemoresistant cancer cells have characteristic expressions of cancer stem cell proteins (CSCs) CD44/CD24, RAD6 and DDB2.

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Early detection and treatment of cervical intraepithelial neoplasia (CIN) through a "see and treat" approach is a pillar of cervical cancer prevention programs in developing countries such as Indonesia. One of the major challenges faced is the limited NO or CO gas supply for cryotherapy. Thus, an alternative therapeutic method such as trichloroacetic acid (TCA) topical application is needed as an alternative solution.

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Introduction And Importance: Mucinous cystadenoma occurs in 10-15% of all ovarian tumors. Diagnosis and treatment should be decided precisely as it has a chance to develop into pseudomyxoma peritonei (PMP). Management of PMP might be challenging especially when repeated surgery is needed.

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Background: Ovarian cancer remains as one of the deadliest gynecologic problems globally. Often appears in advanced state, its surgery proves to be a challenge for clinicians. This study aim to present complications surrounding ovarian cancer surgery.

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Introduction: Primary signet-ring cell carcinoma (PSRCC) of the uterine cervix mostly occurs due to the metastasis from the primary organ, such as the gastrointestinal tract or breast. This case describes the cervical PSRCC and its management as a rare case.

Presentation Of Case: The 39-year-old female came to undergo cancer screening.

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BACKGROUND Placenta accreta is an abnormal invasive placenta that can be life-threatening because of the risk of hemorrhage. Its incidence has increased due to high cesarean delivery rates. Early gestational age placenta accreta is difficult to diagnose and misdiagnosis can lead to inappropriate treatment.

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Introduction And Importance: Caesarean scar endometriosis (CSE) is a rare form of endometriosis due to previous surgical scars from obstetrical and gynecological procedures. The incidence of CSE was 0.08% and quite difficult to diagnose.

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Introduction: Placenta accreta syndrome is a significant cause of maternal mortality and morbidity. Therefore, a multidiscipline approach is essential to overcome this life-threatening disorder for the mother and fetus.

Presentation Of Case: A 32-year-old women gravida 3 parity 2, 34 weeks gestation come due to recurrent antepartum haemorrhage.

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Introduction: Metastases in cervical cancer could be spread through direct local invasion, lymphatic dissemination, or hematogenous dissemination. The most common sites of distant metastases are lungs, bone, and liver. Skin metastases from cervical cancer are categorized as a rare occurrence of metastases.

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Purpose: In 2016, there were 1,308,061 cases of cancer being treated in Indonesia, with 2.2 trillion rupiahs spent, amounting to $486,960,633 in US dollars (purchasing power parity 2016). The high burden of cancers in Indonesia requires a valid data collection to inform future cancer-related policies.

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Cervical cancer is the one of the most common gynecology malignancies in the world. National Comprehensive Cancer Network (NCCN) guidelines on cervical cancer are widely adopted as national guidelines and clinical practice guidelines. These guidelines are constantly being updated but their effectiveness has not been questioned.

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Objective: To revise FIGO staging of carcinoma of the cervix uteri, allowing incorporation of imaging and/or pathological findings, and clinical assessment of tumor size and disease extent.

Methods: Review of literature and consensus view of the FIGO Gynecologic Oncology Committee and related societies and organizations.

Results: In stage I, revision of the definition of microinvasion and lesion size as follows.

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Background: We compared the diagnostic accuracy between visual inspection with acetic acid (VIA) and modified cervicography as an alternative screening method for cervical precancerous lesions.

Methods: A diagnostic cross-sectional study was performed at the outpatient clinic at an Indonesian national referral hospital from February until April 2015. We collected samples from patients who sequentially underwent VIA examination, modified cervicography, and colposcopy.

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Objective: To investigate the prevalence of somatic mutations in Indonesian cervical carcinoma patients in the context of histology and human papillomavirus (HPV) type.

Methods: In total 174 somatic hot-spot mutations in 13 genes were analyzed by mass spectrometry in 137 Indonesian cervical carcinomas.

Results: In 66/137 tumors (48%) 95 mutations were identified.

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Background: Cervical cancer is still the second most frequent cancer among Indonesian women, thus screening program is still critically important to prevent it. Visual inspection with acetic acid (VIA) was introduced as a method which is most suitable with Indonesia's condition compared with the other screening methods. The Female Cancer Program from Jakarta Regional collaborated with Leiden University in 2007 to 2011 has done cervical cancer screening using VIA method, involving 25,406 women spreading across several primary health centers in Jakarta.

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Genetic variation of antigen-processing machinery (APM) components has been shown to be associated with cervical carcinoma risk and outcome in a genetically homogeneous Dutch population. However, the role of APM component single nucleotide polymorphisms (SNPs) in genetically heterogeneous populations with different distributions of human papillomavirus (HPV) subtypes remains unclear. Eleven non-synonymous, coding SNPs in the TAP1, TAP2, LMP2, LMP7 and ERAP1 genes were genotyped in cervical carcinoma patients and healthy controls from two distinct Indonesian populations (Balinese and Javanese).

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Maintaining the quality of life by preserving ovarian function in premenopausal patients with cervical cancer undergoing radiation is crucial. This can be accomplished with a simple and safe laparoscopic ovarian transposition procedure. This procedure aims to move the ovary out of the irradiation field, protecting it from direct radiation and irreversible damage and preserving its function.

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