Publications by authors named "Ada Tsui-Lin Ng"

Background: Anticipating the postoperative pathological stage and potential for adverse features of prostate cancer (PCa) patients before radical prostatectomy (RP) is crucial for guiding perioperative treatment.

Methods: A cohort consisting of three sub-cohorts with a total of 709 patients has been enlisted from two major tertiary medical centres in China. The primary assessment parameters for adverse pathological features in this study are the pathological T stage, the AJCC prognostic stage groups and perineural invasion (PNI).

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Article Synopsis
  • Systematic prostate biopsies can lead to both overdiagnosis of less serious cancer and underdiagnosis of more serious cases; MRI-guided biopsies might offer better accuracy.
  • A study compared cancer detection rates between systematic biopsies and combined biopsies (systematic plus MRI-targeted) in Hong Kong men from 2015 to 2022, involving 1,391 participants.
  • While overall prostate cancer detection rates were similar (36.3% vs 36.6%), combined biopsies were better at identifying clinically significant cancer, particularly in men with PSA levels between 2-10 ng/ml, highlighting the potential benefits of MRI-targeted approaches.
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Background And Objective: Conventionally, standard resection (SR) is performed by resecting the bladder tumour in a piecemeal manner. En bloc resection of the bladder tumour (ERBT) has been proposed as an alternative technique in treating non-muscle-invasive bladder cancer (NMIBC). The objective of this study is to investigate whether ERBT could improve the 1-yr recurrence rate of NMIBC, as compared with SR.

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Background: The status of prostate-specific antigen (PSA) screening is unclear in China. Evidence regarding the optimal frequency and interval of serial screening for prostate cancer (PCa) is disputable.

Objective: This study aimed to depict the status of PSA screening and to explore the optimal screening frequency for PCa in China.

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Background: The risk of second primary cancers (SPC) is increasing after the first primary cancers (FPC) are diagnosed and treated. The underlying causal relationship remains unclear.

Methods: We conducted a pan-cancer association (26 cancers) study in the Surveillance, Epidemiology, and End Results (SEER) database (non-Hispanic whites).

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We aim to evaluate prostate health index as an additional risk-stratification tool in patients with Prostate Imaging Reporting and Data System score 3 lesions on multiparametric magnetic resonance imaging. Men with biochemical or clinical suspicion of having prostate cancer who underwent multiparametric magnetic resonance imaging in two tertiary centers (Queen Mary Hospital and Princess Margaret Hospital, Hong Kong, China) between January 2017 and June 2022 were included. Ultrasound-magnetic resonance imaging fusion biopsies were performed after prostate health index testing.

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Objective: Early evidence is disputable for the effects of modifiable lifestyle behaviors on prostate cancer (PCa) risk. No research has yet appraised such causality in different ancestries using a Mendelian randomization (MR) approach.

Methods: A two-sample univariable and multivariable MR analysis was performed.

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Background: Telomerase reverse transcriptase () has been consistently associated with prostate cancer (PCa) risk. However, few studies have explored the association between variants and PCa aggressiveness.

Methods: Individual and genetic data were obtained from UK Biobank and a Chinese PCa cohort (Chinese Consortium for Prostate Cancer Genetics).

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Purpose: Germline mutations of BRCA1 or BRCA2 predispose men to develop various cancers, including breast cancers and prostate cancers. Male breast cancer (MBC) is a rare disease while prostate cancer (PRC) is uncommon in young men at the age of less than 40. The prevalence of BRCA genes in Asian male patients has to be elevated.

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Prostate cancer (PCa) is one of the most lethal causes of cancer-related death in male. It is characterized by chromosomal instability and disturbed signaling transduction. E3 ubiquitin ligases are well-recognized as mediators leading to genomic alterations and malignant phenotypes.

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Background And Objective: Urine culture is time consuming, which may take days to get the results and impede further timely treatment. Our objective is to evaluate whether the fast urinalysis and bacterial discrimination system called Sysmex UF-5000 may predict urinary tract infections (UTIs) (within minutes) compared with the clinical routine test in suspected UTI patients. In addition, we aimed to explore the accuracy of microbiologic information by UF-5000.

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Article Synopsis
  • A study analyzed the long-term survival outcomes of 782 Chinese prostate cancer patients who underwent radical prostatectomy (RP) from 1998 to 2022 at Queen Mary Hospital.
  • The 5-year, 10-year, and 15-year overall survival rates were reported as 96.6%, 86.8%, and 70.6%, while the prostate cancer-specific survival rates were 99.7%, 98.6%, and 97.8%, respectively.
  • Key findings indicated that higher Surgical ISUP grade (≥4) and factors like lymph node invasion and extracapsular extension correlated with poorer cancer-specific survival, but different surgical methods showed no significant differences in outcomes.
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Understanding the factors that contribute to efficient SARS-CoV-2 infection of human cells may provide insights on SARS-CoV-2 transmissibility and pathogenesis, and reveal targets of intervention. Here, we analyze host and viral determinants essential for efficient SARS-CoV-2 infection in both human lung epithelial cells and ex vivo human lung tissues. We identify heparan sulfate as an important attachment factor for SARS-CoV-2 infection.

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Background And Aims: Besides prominent respiratory involvement, gastrointestinal manifestations are commonly reported in Coronavirus Disease 2019 (COVID-19) patients. We compared infection of ex vivo human intestinal tissues by SARS-CoV-2 and SARS-CoV with respect to their replication kinetics and immune activation profile.

Methods: Human intestinal tissues were obtained from patients while undergoing surgical operations at Queen Mary Hospital, Hong Kong.

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Perineal hernia is a rare complication of anterior exenteration. We reported this complication after an anterior exenteration for bladder cancer with bleeding complication requiring packing and second-look laparotomy. Perineal approach is a simple and effective method for repair of perineal hernia.

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Trocar-site hernia is an uncommon but serious complication after laparoscopic surgery as it frequently requires surgical intervention. We describe a 75-year-old man with Gleason score 4 + 3, clinical stage T1c prostate adenocarcinoma who underwent an uneventful robot-assisted transperitoneal laparoscopic radical prostatectomy. On post-operative day four, he developed symptoms of small bowel obstruction due to herniation and incarceration of the small bowels in a Spigelian-type hernia at the left lower quadrant 8-mm trocar site.

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