1.Clinical Characteristics, Risk Factors, Diagnostic Methods and Therapeutic Response of Cutaneous Sporotrichosis Infection In An Endemic Region
Shen Wei Lee ; Dy-win Low ; Ken Chen Loh ; Adawiyah Jamil
Malaysian Journal of Health Sciences 2026;24(No. 1):44-51
Cutaneous sporotrichosis is a fungal infection caused by traumatic inoculation of Sporothrix. We aimed to study
the clinical characteristics of human sporotrichosis, risk factors for infection, the yield of diagnostic methods and
therapeutic response to standard clinical therapy. A cohort study of was performed. A total of 29 patients with
clinical features suggestive of sporotrichosis were recruited within a one-year period from all public hospitals in
Kedah, Malaysia. Majority were females (86%) who were housewives (69%). The most common comorbidities
were diabetes mellitus (38%), hypertension (31%) and dyslipidaemia (21%), none was a significant risk factor for
severity of infection. Mean duration of disease was 2±2 months. More than 2/3 of the patients (79%) had pet cats,
14(48%) recalled minor cat-inflicted trauma. Lymphocutaneous sporotrichosis (62%) was more common than
fixed cutaneous type, affecting the upper limbs in 94%. Ulcerations and nodules were the main lesion morphology.
Histopathology showed granulomatous inflammation in 72%, culture grew Sprorothrix in 55% and polymerase
chain reaction (PCR) detected Sporothrix schenkii sensu stricto in 65%. Itraconazole was effective with 93% of
patients achieving complete resolution with 4 months of therapy. Sporotrichosis in Malaysia remains endemic.
Feline contact is the most important risk factor for infection. Diagnosis is best confirmed with tissue PCR while
culture and histopathology are also useful. Sporothrix schenkii sensu stricto was the only species identified and
itraconazole is an effective first line therapeutic agent.
2.Clinical Question-Centered Remote Learning for Residents
Atsushi JINNO ; Kento HANADA ; Ken NAGAHATA ; Kazuhito NOMURA ; Hiroshi MIHARA ; Masanori SHIRATORI ; Hiroshi IDA ; Tatsuo MANABE ; Kenta SATO ; Naoki ASAKAGE ; Hideki OKASHIWA ; Yoshihisa TSUJI
Medical Education 2026;57(1):19-26
Cognitive apprenticeship and reflective practice are fundamental educational theories supporting postgraduate clinical training. Community hospital rotations provide ideal opportunities to apply these theories. However, community hospitals face challenges in securing educational time due to faculty shortages and heavy clinical workloads, leading to on-the-job training becoming the primary educational approach. Consequently, opportunities for structured instruction and reflection may be limited, potentially hindering the implementation of cognitive apprenticeship and reflective practice. To address this mismatch between educational needs and available resources, we implemented a remote educational conference focused on clinical questions (CQs) arising from residents' clinical experiences. Unlike traditional clinical conferences that focus on determining patient management, this initiative centers on reflective dialogue based on CQs formulated by residents themselves. By integrating experiential learning theory and reflective practice theory and focusing specifically on the latter three steps of cognitive apprenticeship, we successfully constructed an effective educational model for remote learning environments. This practice enables high-quality medical education that transcends geographical constraints and is considered valuable for future community-based medical education.
3.Lived experiences of well-being of the University Athletic Association of the Philippines Season 84 student-athletes in bubble training during the COVID-19 pandemic: A qualitative phenomenological study.
Ken Erbvin R. SOSA ; Charles Nicolei M. NERMAL ; Karlos Lorenzo A. REA ; Gabrielle Atasha TANHUECO ; Isaac Miguel M. ANDICO ; Janelle Audre C. CHIU ; Timothy D. LAO ; Ma. Julia Isabelle G. PEÑALOZA ; John Mari R. QUILANG ; Zeuch Ryonin B. SILVA
Acta Medica Philippina 2025;59(18):81-98
BACKGROUND AND OBJECTIVE
The COVID-19 pandemic has disrupted the sports industry, resulting in the postponement of events worldwide. This posed a significant burden in the mental and emotional well-being of athletes due to uncertainties and diminished training levels. As an adaptation, bubble camps emerged as a new approach to resuming training and tournaments under stringent regulations of the COVID-19 protocols. In the national context, the University Athletic Association of the Philippines (UAAP) has adapted the bubble set-up by implementing antigen testing, RTPCR, and other health protocols as a prerequisite to bubble training. However, uncertainties in the future of sports continue to present as a psychological toll to the well-being of student-athletes despite the sense of normalcy instilled by bubble training. Existing literature on bubble training is grounded heavily on the quantitative assessments of an athlete's well-being in a bubble set-up and its effectiveness in mitigating COVID-19 transmission, thereby lacking insights that may be obtained from qualitative data. This study explored the experiences of UAAP Season 84 studentathletes in a bubble set-up by examining personal and contextual factors that impacted their well-being.
METHODSThe study employed a qualitative descriptive phenomenological approach based on Seligman's WellBeing Theory. A purposeful sampling technique was used to recruit UAAP student-athletes through online dissemination of Google Forms for recruitment. Only three student-athletes from UAAP fit the eligibility criteria. Data were collected through on-site and online interviews using a semi-structured interview guide to reveal a narrative of the student-athletes' bubble training experiences, common themes, and patterns. The NVivo software program was used for data analysis, utilizing a deductive thematic approach.
RESULTSThe lived experiences of three UAAP studentathletes were classified into six major themes: (1) Availability and Accessibility of Services; (2) Restrictions; (3) Mental Health; (4) Fostering Relationships; (5) Support Systems; and (6) Individual Growth. Accounts of both positive and negative training perceptions and outcomes regarding the bubble set-up were noted from all student-athletes. The set-up provided studentathletes with easy access to training facilities and services, eventual development of mental fortitude and perseverance, improved interpersonal relationships, and opportunities for individual growth. However, the restrictions, isolation, internal and external pressures, and routinary nature of the set-up contributed to the elevated levels of stress and anxiety, eventually leading to fatigue and burnout.
CONCLUSIONThe study elucidates on the multi-faceted experiences of UAAP student-athletes in bubble training, underpinning the essence of the adequacy of training services and facilities, enhanced support systems, and prompt policy development that caters to improving the holistic well-being of student-athletes amidst adverse changes in the trajectory of sports.
Human ; Qualitative Research ; Universities ; College Athletes ; Athletes
4.Reduced radiotherapy volumes for cervical cancer in a second trimester gravid patient: A case report.
Patricia ONG ; Mark DUMAGO ; Carl Jay JAINAR ; Vannesza Hendricke CHUA ; Kelvin Ken YU ; Jocelyn MARIANO ; Warren BACORRO
Journal of Medicine University of Santo Tomas 2025;9(2):1777-1783
PURPOSE
To report the technical details and outcomes of a case of cervical cancer in pregnancy treated with reduced standard radiation volume via Intensity Modulated Radiation Therapy (IMRT).
METHODSA 33-year-old G4P3 (3003) was diagnosed with cervical squamous cell carcinoma at 17 weeks of gestation. She had a 5-year history of intermittent post-coital bleeding and an incidental finding of a cervical mass during prenatal ultrasound. Internal examination revealed a 6-cm mass with no extension to the upper vagina and pliable bilateral parametria, leading to a staging of IB3. A multidisciplinary meeting with a gynecologic oncologist, radiation oncologist, medical ethicist and the patient was held wherein different treatment options were discussed. She consented to definitive external beam radiation therapy (EBRT) with concurrent cisplatin and was administered during 19-25 weeks of gestation using IMRT. A prescribed dose of 45 Gy in 25 fractions was delivered to the entire cervix with a 1-cm geometric expansion covering the lower uterus, and upper vagina as well as the pelvic lymph nodes, followed by four fractions of brachytherapy.
RESULTSThe patient tolerated treatment with only grade 1 gastrointestinal and genitourinary adverse effects. After completion of concurrent chemoradiation, she underwent induction of labor and delivered a nonviable fetus. Three months post-treatment, MRI found no evidence of disease. At 15 months follow-up, she remains asymptomatic with no palpable disease.
CONCLUSIONThis report demonstrates that treating only the involved uterus may be considered in cases wherein giving the full radiation dose to the whole uterus may lead to significant toxicities and eventual treatment interruption.
Human ; Female ; Adult: 25-44 Yrs Old ; Pregnancy Trimester, Second ; Radiotherapy ; Radiation ; Pregnancy ; Neoplasms
5.Research progress in mechanisms of kidney-tonifying traditional Chinese medicine in promoting healing of osteoporotic fractures.
Jun WU ; Ou-Ye LI ; Ken QIN ; Xuan WAN ; Wang-Bing XU ; Yong LI ; Jia-Wei ZHONG ; Yong-Xiang YE ; Rui XU
China Journal of Chinese Materia Medica 2025;50(15):4166-4177
Osteoporotic fractures(OPF) refer to the fractures caused by minor violence in the state of osteoporosis, seriously threatening the life and health of elderly patients. Drug and surgical therapies have limitations such as single targets, diverse adverse reactions, and poor prognosis. Kidney-tonifying traditional Chinese medicine(TCM) has good potential in the treatment of OPF. TCM can promote the healing of OPF by promoting angiogenesis in the early stage of bone healing, promoting osteogenic differentiation of bone marrow mesenchymal stem cells in the stage of bone repair, maintaining the balance of osteogenic and osteoclastic system in the stage of bone remodeling, and regulating the oxidative stress responses throughout the process of OPF healing. TCM can alleviate the pathological state of osteoporosis and promote fracture healing in OPF patients via multiple pathways and targets, demonstrating the advantages and potential of biphasic regulation.
Humans
;
Drugs, Chinese Herbal/therapeutic use*
;
Osteoporotic Fractures/metabolism*
;
Animals
;
Fracture Healing/drug effects*
;
Medicine, Chinese Traditional
;
Kidney/metabolism*
;
Osteogenesis/drug effects*
6.Small bowel video keyframe retrieval based on multi-modal contrastive learning.
Xing WU ; Guoyin YANG ; Jingwen LI ; Jian ZHANG ; Qun SUN ; Xianhua HAN ; Quan QIAN ; Yanwei CHEN
Journal of Biomedical Engineering 2025;42(2):334-342
Retrieving keyframes most relevant to text from small intestine videos with given labels can efficiently and accurately locate pathological regions. However, training directly on raw video data is extremely slow, while learning visual representations from image-text datasets leads to computational inconsistency. To tackle this challenge, a small bowel video keyframe retrieval based on multi-modal contrastive learning (KRCL) is proposed. This framework fully utilizes textual information from video category labels to learn video features closely related to text, while modeling temporal information within a pretrained image-text model. It transfers knowledge learned from image-text multimodal models to the video domain, enabling interaction among medical videos, images, and text data. Experimental results on the hyper-spectral and Kvasir dataset for gastrointestinal disease detection (Hyper-Kvasir) and the Microsoft Research video-to-text (MSR-VTT) retrieval dataset demonstrate the effectiveness and robustness of KRCL, with the proposed method achieving state-of-the-art performance across nearly all evaluation metrics.
Humans
;
Video Recording
;
Intestine, Small/diagnostic imaging*
;
Machine Learning
;
Image Processing, Computer-Assisted/methods*
;
Algorithms
7.Characteristics and outcomes of out-of-hospital cardiac arrest among students under school supervision in Japan: a descriptive epidemiological study (2008-2021).
Kosuke KIYOHARA ; Mamoru AYUSAWA ; Masahiko NITTA ; Takeichiro SUDO ; Taku IWAMI ; Ken NAKATA ; Yuri KITAMURA ; Tetsuhisa KITAMURA
Environmental Health and Preventive Medicine 2025;30():4-4
BACKGROUND:
A comprehensive understanding of the epidemiology of pediatric out-of-hospital cardiac arrest (OHCA) occurring under school supervision is lacking. We aimed to comprehensively describe the characteristics and outcomes of OHCA among students in elementary schools, junior high schools, high schools, and technical colleges in Japan.
METHODS:
OHCA data from 2008-2021 were obtained from the SPIRITS study, which provides a nationwide database of OHCAs occurring under school supervision across Japan. We included cases in which resuscitation was attempted by emergency medical service personnel or bystanders. The cases were classified into three groups based on their etiology: cardiac, non-cardiac, and traumatic origin. The primary outcome was one-month survival with favorable neurological outcomes, defined as a Glasgow-Pittsburgh cerebral performance category of 1 or 2. The demographic characteristics, event details, and outcomes were compared across the three groups by using χ2 tests for categorical variables and one-way analyses of variance for continuous variables.
RESULTS:
During the 14-year study period, 602 OHCA cases were confirmed, with 430 (71.4%) classified as cardiac, 91 (15.1%) as non-cardiac, and 81 (13.5%) as traumatic origin. Non-cardiac and traumatic cases were less likely to be witnessed at the time of arrest (46.2% and 42.0%, respectively) than cardiac cases (82.6%; p < 0.001). Initiation of cardiopulmonary resuscitation by bystanders was less common in non-cardiac and traumatic cases (62.6% and 42.0%, respectively) than that in cardiac cases (82.8%; p < 0.001). The delivery of defibrillation using public-access automated external defibrillators was also significantly less frequent in non-cardiac (3.3%) and traumatic cases (6.2%) than that in cardiac cases (59.8%; p < 0.001). Ventricular fibrillation (VF) as the first documented rhythm was observed in 77.9% of cardiac cases but was much less common in non-cardiac (5.5%) and traumatic cases (8.6%; p < 0.001). One-month survival with favorable neurological outcomes was significantly lower in non-cardiac (6.6%) and traumatic cases (0%) than that in cardiac cases (50.2%; p < 0.001).
CONCLUSIONS
OHCAs of cardiac origin were more frequently associated with VF and had relatively good prognoses. In contrast, OHCAs of non-cardiac and traumatic origins consistently resulted in poor outcomes, highlighting the critical importance of prevention strategies to reduce the occurrence of these incidents.
Out-of-Hospital Cardiac Arrest/etiology*
;
Humans
;
Japan/epidemiology*
;
Male
;
Female
;
Child
;
Students/statistics & numerical data*
;
Schools/statistics & numerical data*
;
Adolescent
;
Cardiopulmonary Resuscitation/statistics & numerical data*
;
Emergency Medical Services/statistics & numerical data*
;
Epidemiologic Studies
8.The application of porous polyethylene biological scaffolds combined with temporoparietal fascial flaps in auricular reconstruction.
Ken LIN ; Yulin DU ; Rui HUANG ; Xia LI ; Hangying ZHANG ; Yuhui HUA ; Dong SU ; Jing MA
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(2):147-157
Objective:To analyze the application efficacy of employing high-density porous polyethylene (Su-por) in combination with temporoparietal fascial flaps via a minimally invasive scalp incision in auricular reconstruction. Methods:This study carried out a retrospective analysis of 50 patients (50 ears in total) who underwentprimary auricular reconstruction with a Su-por scaffold in our hospital from June 2022 to January 2024. All patients underwent primary auricular reconstruction using a minimally invasive scalp incision with high-density porous polyethylene (Su-por) and temporoparietal fascial flaps. The postoperative treatment effects and complications were statistically analyzed. Results:The reconstructed ears of all patients survived. After 6 months of follow-up, the scar hyperplasia of the scalp minimally invasive incision was not obvious in any patient, and no significant hair loss was observed. The reconstructed auricle of 48 patients had a realistic shape and strong three-dimensional sense. With the extension of follow-up time, the three-dimensional structure of the auricle became clearer, and patient satisfaction increased. Among the remaining two patients, one case of flap necrosis survived after skin grafting and dressing changes. One patient had scar hyperplasia at the incision of the reconstructed ear due to a scar-prone constitution, and the shape of the auricle was not ideal, but the scar hyperplasia at the scalp incision was not obvious. Conclusion:One-stage ear reconstruction with high-density porous polyethylene (Su-por) combined with superficial temporal fascia flap through a minimally invasive scalp incision can better show the fine structure of the reconstructed ear. The minimally invasive scalp incision can effectively reduce the occurrence of scar hyperplasia and postoperative alopecia at the scalp incision.
Humans
;
Plastic Surgery Procedures/methods*
;
Retrospective Studies
;
Surgical Flaps
;
Tissue Scaffolds
;
Polyethylene
;
Ear Auricle/surgery*
;
Male
;
Scalp/surgery*
;
Female
;
Skin Transplantation
;
Fascia/transplantation*
;
Porosity
;
Adult
;
Middle Aged
9.Mechanisms of enhanced noise susceptibility in waardenburg syndrome Sox10 p.S100Rfs*9 mutant mice.
Yang XIAO ; Li LI ; Ken LIN ; Dong SU ; Yingqin GAO ; Jing MA ; Tiesong ZHANG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(7):632-639
Objective:To investigate the impact of Waardenburg syndrome(WS) -associated Sox10 p.S100Rfs*9 mutation on inner ear function and its mechanism in noise-induced hearing impairment. Methods:A mice model carrying the Sox10 p.S100Rfs*9 mutation was established using CRISPR-Cas9 gene editing technology. Auditory phenotypes were assessed under baseline conditions and after noise exposure(96 dB SPL, 2 hours). Auditory brainstem response(ABR) tests were performed to evaluate hearing function, combined with immunofluorescence staining of cochlear basilar membrane whole-mounts to observe hair cells and ribbon synapses. Transcriptome sequencing was conducted to analyze molecular mechanisms. Results:Sox10 p.S100Rfs*9 heterozygous mice exhibited normal hearing thresholds with characteristic ventral pigmentation abnormalities under baseline conditions. Following noise exposure, mutant mice showed significantly higher ABR thresholds at 24 000 Hz compared to wild-type controls([60.00±6.12]vs[48.13±4.28]dB SPL, P<0.000 1), and a significant reduction in ribbon synapses(CtBP2-positive puncta) in the basal turn([55.0±2.3]vs[64.8±3.3]per inner hair cell, P=0.006 6), while hair cell morphology and number remained intact. Transcriptome analysis revealed altered expression of genes involved in immune regulation, membrane structures, ion channels, and neuroactive ligand-receptor interactions. Conclusion:The Sox10 p.S100Rfs*9 mutation does not alter baseline hearing function but significantly increases inner ear susceptibility to noise damage, primarily manifested as enhanced ribbon synapse vulnerability, especially in high-frequency regions. This gene-environment interaction reveals that Sox10 haploinsufficiency may compromise noise tolerance by affecting synaptic stability and inner ear protective mechanisms. These findings provide new perspectives on the phenotypic heterogeneity in WS patients and theoretical basis for individualized noise protection strategies for patients carrying SOX10 mutations.
Animals
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SOXE Transcription Factors/genetics*
;
Waardenburg Syndrome/physiopathology*
;
Mice
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Hearing Loss, Noise-Induced/genetics*
;
Evoked Potentials, Auditory, Brain Stem
;
Mutation
;
Noise
;
Disease Models, Animal
;
Ear, Inner/physiopathology*
10.Genetic and clinical phenotypic analysis of Usher syndrome-associated gene variants.
Heng ZHAO ; Xiuli MA ; Yanli QU ; Guo LI ; Ken LIN ; Rui HUANG ; Lijuan ZHOU ; Jing MA
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(8):736-742
Objective:To investigate the molecular characteristics and clinical heterogeneity of Usher syndrome(USH) -related gene variants in patients with hereditary hearing loss in southwest China, providing a basis for early diagnosis and clinical management. Methods:Thirteen patients from twelve families with hearing loss who attended the Affiliated Children's Hospital of Kunming Medical University between January 2017 and March 2021 were enrolled. All patients were identified as carrying USH-related gene variants through next-generation sequencing. Sanger sequencing was performed for all patients and their parents to validate the pathogenic variants. Comprehensive clinical evaluations, including medical history collection, otologic and ophthalmologic examinations, and vestibular function assessments, were conducted. Results:Among the 13 patients, 4 were diagnosed with USH type 1 and 2 with USH type 2. A total of 19 pathogenic or likely pathogenic variants were detected in USH-related genes, including MYO7A,CDH23,USH1C, and USH2A. The causative gene was MYO7A in 3 probands, CDH23 in 5, USH1C in 3, and USH2Ain 2. All patients exhibited an autosomal recessive inheritance pattern. Vestibular dysfunction was observed in 4 patients, and retinitis pigmentosa(RP) in 3 patients. Based on the genotype-phenotype correlation, 6 patients were initially diagnosed with USH, while 7 were classified as having non-syndromic hearing loss(NSHL). Conclusion:This study revealed the clinical heterogeneity of USH-related gene variants in patients with hereditary deafness in southwest China. Although the clinical manifestations of USH are complex and there are overlapping characteristics between different subtypes, genetic testing provides an important basis for early diagnosis and precise clinical management. Especially for those with typical hearing loss, early genetic diagnosis can provide a window of time for early detection and intervention of retinitis pigmentosa.
Humans
;
Usher Syndromes/genetics*
;
Myosin VIIa
;
Phenotype
;
Male
;
Female
;
Myosins/genetics*
;
Mutation
;
Cadherins/genetics*
;
Child
;
Extracellular Matrix Proteins/genetics*
;
Adolescent
;
Pedigree
;
High-Throughput Nucleotide Sequencing
;
Cadherin Related Proteins
;
Cytoskeletal Proteins
;
Cell Cycle Proteins


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