Publications by authors named "Chang-Wei Yang"

Purpose: To investigate the impact of chemoradiotherapy on the physical fitness of patients with oesophageal cancer, and the clinical factors influencing it.

Method: A total of 67 participants successfully completed the study, with 18 of them engaging in supervised, in-hospital aerobic training at moderate intensity for a minimum of 20 sessions. Cardiopulmonary exercise testing, hand grip strength, body composition assessed via bioelectrical impedance analysis, patient-generated subjective global assessment, albumin, and the Functional Oral Intake Scale (FOIS) were evaluated before chemoradiotherapy and 6-8 weeks after its completion.

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With the rising need for accessible cervical cancer screening, self-sampling methods offer a promising alternative to traditional physician-led sampling. This study aims to evaluate the efficacy of the HygeiaTouch Self Sampling Kit for Women in detecting human papillomavirus (HPV) types and predicting cervical lesions. We studied the concordance in identifying high-risk HPV (hrHPV) types between samples collected by physicians and those self-collected by women using a self-sampling kit for validation.

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Spinal cord injury (SCI) animal models have been widely created and utilized for repair therapy research, but more suitable experimental animals and accurate modeling methodologies are required to achieve the desired results. In this experiment, we constructed an innovative dorsal 1/4 spinal cord transection macaque model that had fewer severe problems, facilitating postoperative care and recovery. In essence, given that monkeys and humans share similar genetics and physiology, the efficacy of this strategy in a nonhuman primate SCI model basically serves as a good basis for its prospective therapeutic use in human SCI.

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Decubitus ulcers are a common spinal cord injury (SCI) complication that puts patients' lives in danger and has emerged as a more prevalent issue in modern clinical rehabilitation and care. Decubitus ulcers in humans can currently be treated in a number of different ways, but there are fewer studies on how to treat and care for decubitus ulcers in macaques. To treat a 20-year-old adult male macaque monkey with SCI and decubitus ulcers after a quarter transection of the thoracic spinal cord, a number of scientific care procedures and pharmaceutical treatments, such as dietary changes and topical or intravenous administration of medication, were carried out and continuously monitored in real-time.

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After spinal cord injury (SCI), local inflammatory response and fibrous scar formation severely hinder nerve regeneration. Berberine (Ber) has a powerful regulatory effect on the local microenvironment, but its limited solubility and permeability through the blood-brain barrier severely limit its systemic efficacy. Human umbilical cord mesenchymal stem cells (hUC-MSCs)-derived small extracellular vesicles (sEVs) are natural nanocarriers with high cargo loading capacity, and can cross the blood-brain barrier.

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Uterine carcinosarcoma (UCS) is a highly aggressive gynecologic malignancy. Recurrent or persistent/progressive disease is usually fatal. We aimed to investigate the management and prognosis of these patients.

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Heterologous prime-boost COVID-19 vaccine strategy may facilitate mass COVID-19 immunization. We reported early immunogenicity and safety outcomes of heterologous immunization with a viral vector vaccine (ChAdOx1) and a spike-2P subunit vaccine (MVC-COV1901) in a participant-blinded, randomized, non-inferiority trial (NCT05054621). A total of 100 healthy adults aged 20-70 years having the first dose of ChAdOx1 were 1:1 randomly assigned to receive a booster dose either with ChAdOx1 (n = 50) or MVC-COV1901 (n = 50) at an interval of 4-6 or 8-10 weeks.

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Objective: This study (Asian Gynecologic Oncology Group [AGOG]13-001/Taiwanese Gynecologic Oncology Group [TGOG]1006) was to validate human papillomavirus (HPV)16 as an independent good prognostic factor and investigate the impact of treatment modalities to cervical adenocarcinoma and adenosquamous carcinoma (AD/ASC).

Materials And Methods: Patients receiving primary treatment at AGOG and TGOG member hospitals for cervical AD/ASC were retrospectively (1993-2014) and prospectively (since 2014) enrolled. DNA extraction from paraffin-embedded tissue (FFPE) specimens was used for HPV genotyping.

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Introduction: Endometrial cancer (EC) and colorectal cancer (CRC) may share a common genetic background. In a subset of patients, the two malignancies can coexist either at the time of diagnosis (synchronous) or develop consequently (metachronous). The purpose of this nationwide, population-based study was to investigate the occurrence and clinical outcomes of synchronous/metachronous EC/CRC in Taiwanese women.

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Background: Ovarian clear cell carcinoma (OCCC) is frequently associated with endometriosis. Since serum levels of cancer antigen 125 (CA125) have limited diagnostic and prognostic value in this malignancy, there is an unmet need for reliable and specific biomarkers. Previous findings indicated that alpha 1-antitrypsin isoforms (isoAAT) are significantly increased in the peritoneal fluid of patients with endometriosis.

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Purpose: To investigate the prognostic factors and impact of adjuvant treatment on uterine carcinosarcoma (UCS).

Methods: A retrospective review of UCS patients treated between 2005 and 2019 was conducted. International Federation of Gynecology and Obstetrics (FIGO) 2009 staging system was used.

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Objective: The objective of this study is to evaluate the safety and efficacy of adding bevacizumab to dose-dense adjuvant chemotherapy with bevacizumab maintenance after neoadjuvant chemotherapy (NAC) and interval debulking surgery (IDS) for stage III/IV ovarian, tubal, and primary peritoneal cancer.

Study Design: This phase II clinical trial using Simon's minimax two-stage design was conducted. At the first stage, 13 subjects were enrolled, and the trial would proceed to second stage if ≤3 subjects discontinued treatment for study-defined significant adverse events (AEs).

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Human papillomavirus (HPV) is the well-established etiologic factor for cervical neoplasia. Cervical conization constitutes an effective treatment for high-grade cervical intraepithelial neoplasia (HG-CIN). We conducted an observational study for long-term outcomes and HPV genotype changes after conization for HG-CIN.

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Objective: The characteristics of patients with metachronous breast and ovarian malignancies and the pathogenic role of mutations remain poorly understood. We investigated these issues through a review of hospital records and nationwide Taiwanese registry data, followed by mutation analysis in hospital-based cases.

Methods: We retrospectively retrieved consecutive clinical records of Taiwanese patients who presented with these malignancies to our hospital between 2001 and 2017.

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Background/purpose: Ovarian clear cell carcinoma (OCCC) with recurrence/progression after treatment has dismal prognosis. We aimed to investigate the management and outcomes of such patients.

Methods: OCCC patients who were treated between 2000 and 2013 with cancer recurrence or progression after primary treatment were analyzed.

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Objectives: An Asian Gynecologic Oncology Group phase III randomized trial was conducted to determine whether maintenance chemotherapy could improve progression-free survival (PFS) in stages III/IV ovarian cancer.

Methods: Between 2007 and 2014, 45 newly-diagnosed ovarian cancer patients were enrolled after complete remission and randomized (1:1) to arm A (4-weekly carboplatin area under the curve 4 and pegylated liposomal doxorubicin [PLD] 30 mg/m², n=24) for 6 cycles or arm B (observation, n=21). The primary end-point was PFS.

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The incidence of uterine rupture through a previous cesarean scar (CS) is declining as a result of a lower parity and fewer options for vaginal birth after cesarean. However, uterine ruptures attributable to other causes that traumatize the myometrium are on the rise. To determine whether changes in the causes of uterine rupture had occurred in recent years, we retrospective retrieved the clinical records of all singletons with uterine rupture observed in the delivery room of a Taiwanese tertiary obstetric center over a 15-year period.

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Unlabelled: We investigated whether genomic scar signatures associated with homologous recombination deficiency (HRD), which include telomeric allelic imbalance (TAI), large-scale transition (LST), and loss of heterozygosity (LOH), can predict clinical outcomes in patients with ovarian clear cell carcinoma (OCCC). We enrolled patients with OCCC (n = 80) and high-grade serous carcinoma (HGSC; n = 92) subjected to primary cytoreductive surgery, most of whom received platinum-based adjuvant chemotherapy. Genomic scar signatures based on genome-wide copy number data were determined in all participants and investigated in relation to prognosis.

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Background: Cytotoxic T lymphocyte-mediated (CTL-mediated) severe cutaneous adverse reactions (SCARs), including Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), are rare but life-threatening adverse reactions commonly induced by drugs. Although high levels of CTL-associated cytokines, chemokines, or cytotoxic proteins, including TNF-α and granulysin, were observed in SJS-TEN patients in recent studies, the optimal treatment for these diseases remains controversial. We aimed to evaluate the efficacy, safety, and therapeutic mechanism of a TNF-α antagonist in CTL-mediated SCARs.

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Background/purpose: To compare the clinical outcomes of Taiwanese patients with ovarian clear cell carcinomas (CCCs) and serous carcinomas (SCs).

Methods: We retrieved the clinical records of women with epithelial ovarian cancer (Stage I-IV) who received primary surgeries between 2000 and 2013. Cancer-specific survival (CSS), progression-free survival, and survival after recurrence (SAR) of CCC and SC patients were retrospectively compared.

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Background: Clinical conclusions in studying the stability and osseointegration of mandibular implants positioned using the bone expansion techniques are conflicting and limited.

Purpose: The objective was to examine the implant stability quotient (ISQ) values of mandibular posterior dental implants with 4.1 mm diameter that inserted with osteotome bone expansion technique versus conventional drilling technique during a 12-week observation period.

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Objective: We aimed to identify prognostic factors of early-stage cervical adenocarcinoma (AC) and adenosquamous carcinoma (ASC) treated with primary radical surgery, and to evaluate the impact of postoperative adjuvant therapy on outcome.

Methods: The clinical-pathological data of all patients (n = 1132) with stages I-II cervical AC/ASC treated with primary radical surgery at the member hospitals of the Taiwanese Gynecologic Oncology Group were retrospectively reviewed.

Results: In multivariate analysis, stage II, deep stromal invasion (DSI), lymphovascular space invasion (LVSI), positive pelvic lymph node (PLN), and parametrial involvement (PI) were significant factors for recurrence-free survival (RFS), while only DSI, PI, and positive PLN were independent factors for cancer-specific survival (CSS).

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Purpose: The aim of this prospective study was to assess the usefulness of (18)F-FDG PET/CT performed before and during treatment for predicting treatment failure in patients with advanced squamous cell carcinoma of the uterine cervix treated with concurrent chemoradiotherapy (CCRT).

Methods: Patients with cervical squamous cell carcinoma, International Federation of Gynecology and Obstetrics stage III/IVA or positive pelvic or paraaortic lymph node (LN) metastasis without other distant metastasis on PET/CT entering a randomized trial of CCRT (AGOG 09-001) were eligible. PET/CT scans were performed at baseline, during week 3 of CCRT and 2 - 3 months after CCRT.

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Article Synopsis
  • A population-based study in Taiwan examined the under-utilization of Pap smears and the feasibility of self-sampling HPV tests for women who had not screened in over 5 years.
  • The study invited 10,693 eligible women, resulting in only 354 responses, with 282 women participating; 16.7% tested positive for HPV, and some were found to have cervical lesions.
  • Factors like lack of time, embarrassment, and fear of results contributed to under-screening, but 90.8% of responders found the self-sampling method acceptable, suggesting alternative approaches are needed to increase screening rates.
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Objective: Dentine hypersensitivity is a type of clinical oral disease, which is highly prevalent worldwide. Although there are many materials to treat dentine hypersensitivity, their long-term therapeutic effects are not satisfactory. Therefore, the aim of this research was to observe and identify the biological mineralization of the generation 4.

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