Sahyun Pak
Visiting Research ScientistCards
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Research
Publications
2025
Mediating Effect of Serum Uric Acid in the Association Between Nocturia and Mortality
Kim S, Park S, Pak S, Kwon O, Lee Y, Cho S. Mediating Effect of Serum Uric Acid in the Association Between Nocturia and Mortality. International Neurourology Journal 2025, 29: 277-285. PMID: 41508673, PMCID: PMC12784058, DOI: 10.5213/inj.2550126.063.Peer-Reviewed Original ResearchSerum uric acidSerum uric acid levelsBurden of metabolic risk factorsMortality riskRestricted cubic spline regressionJ-shaped associationElevated mortality riskHigher Body Mass IndexPopulation-based dataElevated serum uric acidSerum uric acid quartileCubic spline regressionEffect of serum uric acidMetabolic risk factorsNatural consequence of agingCox regression analysisBody mass indexUric acidWaist circumferenceDose-response relationshipAll-CauseMediation effectConsequence of agingMass indexNocturiaMetabolic syndrome and its components as independent risk factors for nocturia: A national cross-sectional analysis
Kim S, Park S, Pak S, Kwon O, Lee Y, Cho S. Metabolic syndrome and its components as independent risk factors for nocturia: A national cross-sectional analysis. Investigative And Clinical Urology 2025, 67: 52-61. PMID: 41469906, PMCID: PMC12792116, DOI: 10.4111/icu.20250261.Peer-Reviewed Original ResearchConceptsRestricted cubic splinesAssociated with nocturiaWaist circumferenceNational Health and Nutrition Examination SurveyHealth and Nutrition Examination SurveyNational Cholesterol Education Program Adult Treatment Panel III criteriaAdult Treatment Panel III criteriaBlood pressureIndividual metabolic componentsNational cross-sectional analysisNutrition Examination SurveyMetabolic syndromeU.S. adult populationSex-specific analysesCross-sectional analysisElevated fasting glucoseRestricted cubic spline analysisMultivariate logistic regressionExamination SurveyCentral obesityElevated blood pressureSystolic blood pressureBehavioral covariatesDiastolic blood pressureDose-response relationshipDeep learning‐based classification of acute scrotum using single ultrasound images
Pak S, Park S, Kim J, Lee S, Lee W, Oh C, Woo J, Cho S, Lee Y. Deep learning‐based classification of acute scrotum using single ultrasound images. BJU International 2025, 137: 376-382. PMID: 41327908, DOI: 10.1111/bju.70091.Peer-Reviewed Original ResearchConceptsAcute scrotumDifferential diagnosisDiagnosis of acute scrotumDifferential diagnosis of acute scrotumAcute scrotal painColor Doppler US imagesProspective pilot studyTesticular blood flowDoppler US imagesUS imagesScrotal painWhirlpool signDoppler USMulticentre studyDiagnostic performancePilot studyClinical utilityBlood flowTorsion casesScrotal emergenciesScrotumUltrasoundUltrasound imagingDeep learning-based classificationWorkflow integrationAssociation of Handgrip Strength With Urinary Incontinence in Postmenopausal Korean Women: A Machine Learning Study
Kim S, Lee Y, Kwon O, Pak S, Park S, Cho S. Association of Handgrip Strength With Urinary Incontinence in Postmenopausal Korean Women: A Machine Learning Study. International Urogynecology Journal 2025, 36: 1847-1855. PMID: 40996442, DOI: 10.1007/s00192-025-06310-y.Peer-Reviewed Original ResearchConceptsPostmenopausal Korean womenAssociated with UILow handgrip strengthHandgrip strengthPostmenopausal womenNoninvasive markerMarkers of muscle functionHandgrip strength thresholdRisk of incontinenceClinically relevant cutoffsKorean womenPrevalence of UIMultivariate logistic regression modelBurden of comorbiditiesAssociated with frailtyHypothesisUrinary incontinenceUrine leakageUrinary incontinenceContinent groupRelevant cutoffsLogistic regression modelsUI riskIncontinenceMuscle functionOlder womenLower urinary tract symptoms following perineal burns: Clinical characteristics and predictors of symptom persistence
Kim J, Park S, Yoon J, Cho Y, Kym D, Hur J, Kwon O, Cho S, Lee Y, Pak S. Lower urinary tract symptoms following perineal burns: Clinical characteristics and predictors of symptom persistence. Burns 2025, 51: 107626. PMID: 40834473, DOI: 10.1016/j.burns.2025.107626.Peer-Reviewed Original ResearchConceptsLower urinary tract symptomsPersistent lower urinary tract symptomsUrinary tract symptomsPerineal burnsClinical characteristicsPersistent symptomsLong-term clinical implicationsIncomplete bladder emptyingPredictor of prognosisFactors associated with persistent symptomsShort-term treatmentCatheter-based managementMultivariate logistic regressionPredictors of symptom persistenceBurn-related factorsStorage symptomsVoiding symptomsUrinary frequencyBladder emptyingElectrical burnsIndependent predictorsUrology departmentPharmacological therapyStandard treatmentSymptom resolution
2024
Association between urgency urinary incontinence and cause-specific mortality: a population-based analysis
Kim S, Park S, Pak S, Lee Y, Cho S. Association between urgency urinary incontinence and cause-specific mortality: a population-based analysis. World Journal Of Urology 2024, 43: 22. PMID: 39656264, DOI: 10.1007/s00345-024-05347-w.Peer-Reviewed Original ResearchConceptsCause-specific mortalityNational Death IndexCause-specific analysisElevated mortality riskDifferential riskCardiovascular diseaseRisk of overall mortalityQuality of lifePopulation-based analysisRisk of mortalityAssociated with mortalityDeath IndexPotential confoundersMortality riskU.S. populationHazard ratioUrinary incontinencePrevalent conditionAverage duration of follow-upAverage durationDuration of follow-upStatistical interactionRegression analysisOverall mortalityUrgency urinary incontinenceApplications of artificial intelligence in urologic oncology
Pak S, Park S, Park J, Cho S, Lee Y, Ahn H. Applications of artificial intelligence in urologic oncology. Investigative And Clinical Urology 2024, 65: 202-216. PMID: 38714511, PMCID: PMC11076794, DOI: 10.4111/icu.20230435.Peer-Reviewed Original ResearchConceptsKidney cancerProstate cancerUrologic oncologyBladder cancerRenal cell carcinomaPrediction of prognosisPubMed-Medline databaseUrothelial carcinomaAggressive tumorsCell carcinomaUrological cancersMalignant tumorsCancer managementUrological diseasesRobotic surgeryTreatment outcomesGeneral surgerySurvival rateProstateArtificial intelligenceCancerBladderDeep learningMachine learningCombination of keywordsBenign Prostatic Hyperplasia and the Risk of Falls in Older Men: Insights From a Population-Based Study on Geriatric Morbid Conditions
Kim S, Lee D, Park S, Pak S, Lee Y, Cho S. Benign Prostatic Hyperplasia and the Risk of Falls in Older Men: Insights From a Population-Based Study on Geriatric Morbid Conditions. International Neurourology Journal 2024, 28: 44-51. PMID: 38569619, PMCID: PMC10990761, DOI: 10.5213/inj.2448064.032.Peer-Reviewed Original ResearchIncidence of fallsRisk of fallsBenign prostatic hyperplasiaNational Survey of Older KoreansHeightened fall riskPopulation-based studySubgroup analysisProstatic hyperplasiaMorbid conditionsHealth and WelfareMinistry of Health and WelfareFall riskLogistic regression analysisBenign prostatic hyperplasia treatmentOlder KoreansImpact of benign prostatic hyperplasiaMultiple morbiditiesTargeted interventionsAuditory impairmentMale participantsOlder menDaily activitiesElderly individualsNational surveyVulnerable groupsReply to “Revisiting the nocturia‐testosterone deficiency nexus: A circadian perspective”
Kim S, Lee D, Park S, Pak S, Lee Y, Cho S. Reply to “Revisiting the nocturia‐testosterone deficiency nexus: A circadian perspective”. Neurourology And Urodynamics 2024, 43: 1027-1028. PMID: 38501364, DOI: 10.1002/nau.25453.Peer-Reviewed Original ResearchDeep Learning Model for Real‑time Semantic Segmentation During Intraoperative Robotic Prostatectomy
Park S, Park J, Choi H, Lee J, Cho S, Lee Y, Ahn H, Pak S. Deep Learning Model for Real‑time Semantic Segmentation During Intraoperative Robotic Prostatectomy. European Urology Open Science 2024, 62: 47-53. PMID: 38585210, PMCID: PMC10998267, DOI: 10.1016/j.euros.2024.02.005.Peer-Reviewed Original ResearchDeep learning algorithmsConvolutional neural networkDeep learning modelsLearning algorithmsSemantic segmentationRobot-assisted radical prostatectomyArtificial intelligenceReal-time semantic segmentationLearning modelsCNN-based deep learning modelMedical image segmentationMedical image analysisReal-time segmentationCNN-based segmentationU-Net modelMean dice scoreImage segmentationDice coefficient valuesNeural networkRobotic surgeryTest dataDice scoreReal-time guidanceSurgical fieldLearning segmentation
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