Publications by authors named "Wayne Lam"

Objective: The aim of this study was to investigate the value of the 8th American Joint Committee on Cancer (AJCC) anatomic and prognostic stage groups for penile cancer patients and explore whether there is room for improvement.

Methods: The clinical and histopathologic data from 16 centers between January 2000 and December 2021 were assessed according to the 8th AJCC anatomic and prognostic stage groups. Kaplan-Meier plots were used to estimate the disease-specific survival (DSS) of the patients.

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United States healthcare outcomes, including avoidable mortality rates, are among the worst of high-income countries despite the highest healthcare spending per capita. While community pharmacies contribute to chronic disease management and preventive medicine, they also offer consumer products that increase mortality risks and the prevalence of cardiovascular diseases, diabetes, cancer, and depression. To resolve these contradictions, our perspective article describes opportunities for major pharmacy chains (e.

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Constitutional loss of SMAD4 function results in Juvenile Polyposis-Hereditary Haemorrhagic Telangiectasia Overlap Syndrome (JP-HHT). A retrospective multi-centre case-note review identified 28 patients with a pathogenic SMAD4 variant from 13 families across all Scottish Clinical Genetics Centres. This provided a complete clinical picture of the Scottish JP-HHT cohort.

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Article Synopsis
  • The translation elongation factor eEF1A2 is crucial for binding aminoacyl-tRNA to the ribosome, and since 2012, 21 harmful variants have been linked to severe neurodevelopmental disorders, including epilepsy and intellectual disabilities.
  • A recent study gathered 26 patients with EEF1A2 variants, revealing a milder clinical profile than previously reported, with higher walking and language skills and lower rates of intellectual disability and epilepsy.
  • The research identified 8 new EEF1A2 variants and suggests that severe and moderate phenotypes are linked to specific protein regions affecting GTP exchange, while milder variants may affect secondary functions, contributing to a broader understanding
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  • * The trial will involve adults with OI who will undergo baseline assessments (e.g., spine X-rays, bone mineral density tests) and be randomly assigned to either the TPTD/ZA treatment or standard care over a period of 2 years, with follow-ups for up to 8 years.
  • * Ethical approval was granted for the study, and results will be published in a peer-reviewed journal, contributing to clinical knowledge on fracture prevention in OI
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Purpose: We compare Prostate Health Index, Prostate Health Index density, and PSA density in predicting clinically significant prostate cancer in MRI-guided prostate biopsy.

Materials And Methods: This is a multicenter evaluation of prospectively maintained prostate biopsy databases at 10 urology centers. Men with Prostate Health Index and MRI-guided targeted and systematic prostate biopsy performed and without prior prostate cancer diagnosis were included.

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  • A significant portion of intellectual disability cases have unknown genetic causes, but de novo mutations (DNMs) in genes account for up to 40% of them.
  • Researchers sequenced genomes from 21 individuals with intellectual disabilities and their parents, discovering that regulatory DNMs are more abundant in fetal brain enhancers compared to adult brain enhancers.
  • The study revealed that these regulatory mutations are linked to genes important for brain development, indicating that they significantly contribute to the causes of intellectual disability.
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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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Aim: Achieve an international consensus on how to recover lost training opportunities. The results of this study will help inform future EAES guidelines about the recovery of surgical training before and after the pandemic.

Background: A global survey conducted by our team demonstrated significant disruption in surgical training during the COVID-19 pandemic.

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  • - Esophageal atresia/tracheoesophageal fistula (EA/TEF) is a serious birth defect often linked with other abnormalities, but genetic testing only confirms a diagnosis in a small percentage of cases.
  • - In a study involving 67 patients, only 11 (16%) received a definitive or probable genetic diagnosis, indicating that the reasons behind EA/TEF may be more complex and involve multiple genetic and environmental factors.
  • - The research identified specific genetic variants related to certain genes (like TCF4 and FANCA) that may contribute to the EA/TEF conditions, providing new insights into its development.
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The role of pyroptosis and its effects on tumor-infiltrating cells (TICs) in the pathogenesis and treatment outcomes of patients with bladder urothelial carcinoma (BLCA) remains unclear. We conducted a bioinformatics analysis on the pyroptosis-related genes (PRGs) and TICs using data from public domains, and evaluated their impact on the pathogenesis and clinical outcomes of BLCA patients. A risk score based on PRGs and a prognostic risk model that incorporated patient demographics, tumor characteristics, and differentially expressed genes (DEGs) were developed.

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  • * Researchers analyzed clinical and genetic data from 36 individuals with CDH+ to identify genes that may influence diaphragm development and reveal new related health conditions.
  • * They found potential harmful variants in genes (CREBBP, SMARCA4, UBA2, USP9X) that are expressed in developing mouse diaphragms, suggesting these genes contribute to diaphragm development and furthering our understanding of CDH.
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The International Alliance of Urolithiasis (IAU) would like to release the latest guideline on percutaneous nephrolithotomy (PCNL) and to provide a clinical framework for surgeons performing PCNLs. These recommendations were collected and appraised from a systematic review and assessment of the literature covering all aspects of PCNLs from the PubMed database between January 1, 1976, and July 31, 2021. Each generated recommendation was graded using a modified GRADE methodology.

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Objective: To develop a predictive model for additional inguinal lymph node metastases (LNM) at inguinal lymph node dissection (ILND) after positive dynamic sentinel node biopsy (DSNB) using DSNB characteristics to identify a patient group in which ILND might be omitted.

Patients And Methods: We conducted a retrospective study of 407 inguinal basins with a positive DSNB in penile cancer patients who underwent subsequent ILND from seven European centres. From the histopathology reports, the number of positive and negative lymph nodes, presence of extranodal extension and size of the metastasis were recorded.

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Background: Although metastatic adenocarcinoma of the ileum is not uncommon, solitary metastasis to the seminal vesicle has not been reported. We report a patient with recurrent hematospermia diagnosed with metastasis to the seminal vesicle following ileal adenocarcinoma resection, his subsequent management and outcome.

Case Summary: A 46-year-old man presented with recurrent episodes of painless hematospermia.

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Klinefelter syndrome (KS) is a common cause of non-obstructive azoospermia (NOA). Advances in fertility preservation (FP) techniques, such as the use of microdissection testicular sperm extraction (micro-TESE), have improved sperm retrieval rates (SRR) up to 40-50% in this population. Age has been suggested to have an impact on FP, postulating that sperm production may deteriorate over time due to germ cell loss.

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Background: Programmed death 1/ligand 1 (PD-1/L1) inhibitors have acceptable antitumor activity in patients with platinum-resistant urothelial cancer (UC). However, the reliability and comparability of the antitumor activity, safety profiles and survival outcomes of different immune checkpoint inhibitors are unknown. Our objective was to compare the clinical efficacy and safety of anti-PD-1/PD-L1 therapies in platinum-resistant UC patients.

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Background: To establish a set of consensus statements for the management of metastatic renal cell carcinoma, a total of 12 urologists and clinical oncologists from two professional associations in Hong Kong formed an expert consensus panel.

Methods: Through a series of meetings and using the modified Delphi method, the panelists presented recent evidence, discussed clinical experiences, and drafted consensus statements on several areas of focus regarding the management of metastatic renal cell carcinoma. Each statement was eventually voted upon by every panelist based on the practicability of recommendation.

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Changes were made in the 8 edition of the American Joint Committee on Cancer (AJCC) staging system according to cavernosum invasion for penile squamous cell carcinoma. This study aimed to determine the difference of prognostic validity between corpora cavernosa (CC) invasion and corpus spongiosum (CS) invasion. In this study, we searched PubMed, Cochrane CENTRAL, and Embase to select English-language articles until July 15, 2020.

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Introduction: The recommended treatment for bothersome lower urinary tract symptoms (LUTS) secondary to benign prostatic obstruction (BPO) after the failure of behavioral therapy and fluid modification includes pharmacological, minimally invasive interventional, and surgical approaches. Each option has different risk and benefit profiles, and the urologist must be aware of the unique characteristics of each option in order to be able to accurately counsel the patients based on their individual values and preferences. We provide a comparative review of the commonest pharmacological and most widely performed interventional/surgical treatments for BPO, discussing the evidence for the treatment characteristics that are most useful for the practicing urologist.

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Article Synopsis
  • The study aimed to evaluate the practicality of a local anesthetic transperineal (LATP) technique for prostate cancer detection and to gather initial findings on infection rates and patient tolerability.
  • A total of 1,218 patients underwent LATP biopsies across multiple centers, and prostate cancer was identified in 67% of cases, with a significant proportion having clinically relevant disease.
  • Patients reported relatively low pain levels during the procedure, with a majority finding it tolerable under local anesthesia, while only a small percentage considered the re-biopsy process a major problem.
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ABL1 is a proto-oncogene encoding a nonreceptor tyrosine kinase, best known in the somatic BCR-ABL fusion gene associated with chronic myeloid leukaemia. Recently, germline missense variants in ABL1 have been found to cause an autosomal dominant developmental syndrome with congenital heart disease, skeletal malformations and characteristic facies. Here, we describe a series of six new unrelated individuals with heterozygous missense variants in ABL1 (including four novel variants) identified via whole exome sequencing.

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