Publications by authors named "Chin V"

Background: STereotactic Arrhythmia Radioablation (STAR) is a novel noninvasive method for treating arrythmias in which external beam radiation is directed towards subregions of the heart. Challenges for accurate STAR targeting include small target volumes and relatively large patient motion, which can lead to radiation related patient toxicities. 4D Cone-beam CT (CBCT) images are used for stereotactic lung treatments to account for respiration-related patient motion.

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  • Pancreatic cancer is a highly lethal disease with limited treatment options, leading to an updated review of randomized data focused on first-line treatments for advanced cases.
  • The review examines the impact of chemotherapy, radiotherapy, or a combination of both on overall survival, severe adverse events, and quality of life for patients with unresectable or metastatic pancreatic cancer.
  • A total of 75 studies were analyzed, with 51 included in the meta-analysis, examining various treatment comparisons and finding that the studies generally had low risks for biases in methodology.
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  • - This clinical trial compared the safety and effectiveness of an inhaled COVID-19 vaccine (Ad5-nCoV-IH) against an intramuscular vaccine (BNT-IM) in 540 vaccinated adults in Malaysia from September 2022 to May 2023.
  • - While Ad5-nCoV-IH exhibited lower immunogenicity (with a GMC ratio of 0.22) compared to BNT-IM, it resulted in fewer adverse drug reactions (39.26% vs. 64.68%) and no serious side effects were documented.
  • - Both vaccines demonstrated similar efficacy against COVID-19 variants, but the study concluded that Ad5-nCoV-IH did not meet the non
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Objectives: The coronavirus disease 2019 (COVID-19) pandemic disrupted healthcare systems worldwide, causing substantial changes to routine healthcare delivery. National and international modelling studies have predicted adverse impacts of this disruption. This study aimed to assess the real-world impact of the COVID-19 pandemic on quality of care and outcomes for patients with lung cancer in New South Wales (NSW).

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Tremendous amount of sludge is generated annually from freshwater treatment or sewage. The high temperature slagging co-gasification converts the sludge to slag showing the potential application for construction material. In this study, the physico-chemical properties of 4 types of slags generated from the co-gasification of municipal solid waste (MSW) with sludge from freshwater treatment or sewage, and ashes from sludge incineration are comprehensively analyzed.

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  • ALK-positive lung cancers exhibit molecular diversity and pose challenges due to treatment resistance, prompting the need for innovative strategies using ctDNA monitoring.
  • The ALKTERNATE pilot study analyzed alternating treatments of lorlatinib and crizotinib in patients resistant to previous ALK inhibitors, focusing on outcomes like treatment failure time, safety, and patient experiences.
  • Results showed that the alternating therapy was safe and effective for most participants, with an average treatment failure time of 10 months and overall survival of 23 months, indicating the importance of genetic factors in treatment response.
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Radiotherapy is an essential part of treatment for many patients with thoracic cancers. However, proximity of the heart to tumour targets can lead to cardiac side effects, with studies demonstrating link between cardiac radiation dose and adverse outcomes. Although reducing cardiac dose can reduce associated risks, most cardiac constraint recommendations in clinical use are generally based on dose to the whole heart, as dose assessment at cardiac substructure levels on individual patients has been limited historically.

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Background And Purpose: Stereotactic ablative body radiotherapy (SABR) is increasingly used for early-stage lung cancer, however the impact of dose to the heart and cardiac substructures remains largely unknown. The study investigated doses received by cardiac substructures in SABR patients and impact on survival.

Materials And Methods: SSBROC is an Australian multi-centre phase II prospective study of SABR for stage I non-small cell lung cancer.

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Omphalocele and gastroschisis are the most common types of abdominal wall defects. Comprehensive local experience helps parents to make decisions on the pregnancy and foresee the disease journey. A retrospective review of abdominal wall defect patients in all three pediatric surgical centers in Hong Kong between January 2003 and February 2023 was conducted.

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We present a cohort review of TORS resection for HPV-associated oropharyngeal squamous cell carcinoma (OPSCC) and its associated oncological outcomes spanning a 10-year period. A retrospective case series review was performed of patients undergoing primary surgical treatment for HPV-associated OPSCC through the St. Vincent's Head and Neck Cancer service from 2011 to 2022.

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Background: With novel therapies, more individuals are living longer with lung cancer (LC). This study aimed to understand the impacts of LC on life domains such as employment, finances, relationships, and healthcare needs.

Methods: Individuals 18+, diagnosed with LC, 6-24 months post-treatment were recruited through an Australian LC cohort study (Embedding Research and Evidence in Cancer Healthcare-EnRICH).

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Fungal infections caused by Candida species pose a serious threat to humankind. Antibiotics abuse and the ability of Candida species to form biofilm have escalated the emergence of drug resistance in clinical settings and hence, rendered it more difficult to treat Candida-related diseases. Lethal effects of Candida infection are often due to inefficacy of antimicrobial treatments and failure of host immune response to clear infections.

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Objective: To analyse the rate of contralateral nodal metastasis in human papillomavirus (HPV)-associated oropharyngeal carcinoma and identify the patient cohorts that would benefit from bilateral neck treatment.

Methods: A retrospective cohort review was performed on 110 HPV-positive oropharyngeal carcinoma patients who underwent transoral robotic surgery and bilateral neck dissections from 2012 to 2022. The primary outcome was to investigate the pathological incidence and location of contralateral neck node metastasis.

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Aims: Delineation variations and organ motion produce difficult-to-quantify uncertainties in planned radiation doses to targets and organs at risk. Similar to manual contouring, most automatic segmentation tools generate single delineations per structure; however, this does not indicate the range of clinically acceptable delineations. This study develops a method to generate a range of automatic cardiac structure segmentations, incorporating motion and delineation uncertainty, and evaluates the dosimetric impact in lung cancer.

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Objectives: Lung cancer continues to be the most common cause of cancer-related death and the leading cause of morbidity and burden of disease across Australia. There is an ongoing need to identify and reduce unwarranted clinical variation that may contribute to these poor outcomes for patients with lung cancer. An Australian national strategy acknowledges clinical quality outcome data as a critical component of a continuously improving healthcare system but there is a need to ensure clinical quality indicators adequately measure evidence-based contemporary care, including novel and emerging treatments.

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Background: Australia has one of the highest rates of asbestos-associated diseases. Mesothelioma remains an area of unmet need with a 5-year overall survival of 10%. First-line immunotherapy with ipilimumab and nivolumab is now a standard of care for unresectable pleural mesothelioma following the CheckMate 743 trial, with supportive data from the later line single-arm MAPS2 trial.

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Riboflavin is a precursor of the essential coenzymes flavin mononucleotide and flavin adenine dinucleotide. Both possess antioxidant properties and are involved in oxidation-reduction reactions, which have a significant impact on energy metabolism. Also, the coenzymes participate in metabolism of pyridoxine, niacin, folate, and iron.

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Purpose: Lung cancer remains underrepresented in cancer survivorship research. This study aimed to understand survivors' physical/psychological challenges, experiences of immunotherapy (IO) and targeted therapy (TT), and psychological adjustment through application of the Roberts et al. (2017) advanced cancer adaptation of Folkman and Greer's appraisal and coping model.

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Summary: Kallmann syndrome (KS) is a genetically heterogeneous condition characterized by hypogonadotropic hypogonadism with coexisting anosmia or hyposmia along with potential other phenotypic abnormalities depending on the specific genetic mutation involved. Several genetic mutations have been described to cause KS. The ANOS1 (KAL1) gene is responsible for 8% of mutations causing KS.

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The use of genomics is firmly established in clinical practice, resulting in innovations across a wide range of disciplines such as genetic screening, rare disease diagnosis and molecularly guided therapy choice. This new field of genomic medicine has led to improvements in patient outcomes. However, most clinical applications of genomics rely on information generated from bulk approaches, which do not directly capture the genomic variation that underlies cellular heterogeneity.

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Childhood obesity is highly prevalent among certain populations of New York. This cross-sectional pilot study examined the associations between parental attitudes about outdoor activities and body mass index (BMI). A questionnaire was distributed among parents of 1 to 13 aged children at ambulatory pediatric clinics.

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Following reports of increased new-onset diabetes and worse severity of DKA for children with diabetes following SARS-CoV-2 infection, we studied hospitalization rates for children with type 1 diabetes (T1DM) and type 2 diabetes (T2DM) in our center during the citywide shutdown. . We conducted a retrospective chart review of children admitted to our two hospitals from January 1, 2018, to December 31, 2020.

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Background And Purpose: Accurate and consistent delineation of cardiac substructures is challenging. The aim of this work was to validate a novel segmentation tool for automatic delineation of cardiac structures and subsequent dose evaluation, with potential application in clinical settings and large-scale radiation-related cardiotoxicity studies.

Materials And Methods: A recently developed hybrid method for automatic segmentation of 18 cardiac structures, combining deep learning, multi-atlas mapping and geometric segmentation of small challenging substructures, was independently validated on 30 lung cancer cases.

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