1.Characteristics of Pruritus in Patients with Plaque Psoriasis:Clinical, Laboratory, and Histopathologic Analysis
Seon Jin KIM ; Dae Won KOO ; Young Suck RO ; Joong Sun LEE
Korean Journal of Dermatology 2026;64(1):18-27
Background:
Pruritus is the most common symptom of skin diseases. Although the prevalence of pruritus in patients with psoriasis has been reported to be between 60% and 90%, its importance has historically been underestimated. Recently, the number of reported cases in which psoriasis and atopic dermatitis coexist has increased, shedding light on their associations.
Objective:
To investigate the factors related to pruritus and compare the clinical, laboratory, and histopathologic findings of patients according to pruritus intensity and psoriasis severity.
Methods:
This study involved a retrospective chart review of 139 patients diagnosed with plaque psoriasis based on biopsies and laboratory tests. We conducted a comparative analysis of pruritus scores, the Psoriasis Area Severity Index (PASI), clinical characteristics, laboratory tests, and histopathologic findings.
Results:
PASI and pruritus scores were positively correlated, with itching being more pronounced in women than in men. Patients with severe pruritus showed longer disease duration and higher PASI scores than those with milder pruritus. Patients with more severe psoriasis (PASI≥20) showed elevated total serum immunoglobulin E levels, a higher neutrophil-to-lymphocyte ratio, and increased neutrophils in lesional tissue. There was no significant difference in eosinophil count or eosinophilic infiltration between patients with severe and mild pruritus.
Conclusion
Pruritus is associated with psoriasis severity. In this study, we demonstrated an association between pruritus in patients with plaque psoriasis and laboratory markers and histopathologic factors.
2.Spatiotemporal Remodeling of Enteric Neural Pathways Underlies ColonicDysmotility Following Spinal Cord Injury in Rats
Min Seob KIM ; Sei KIM ; Se Eun HA ; Hyun Seok CHOI ; Myeong Hwan YU ; Jisong YOU ; Dahyun SEON ; Do Hee LEE ; Min Cheol JOO ; Yong Sung KIM ; Suck Chei CHOI ; Joong Goo KWON ; Kyung Sik PARK ; Hyun Jin KIM ; Seungil RO ; Moon Young LEE
Journal of Neurogastroenterology and Motility 2026;32(1):86-98
Background/Aims:
Spinal cord injury (SCI) frequently impairs defecation, severely affecting the quality of life. This study examines compensatory neural remodeling after SCI, focusing on basal colonic contractility, neural responses to electrical field stimulation, and alterations in excitatory cholinergic and inhibitory nitrergic pathways.
Methods:
Female Sprague–Dawley rats underwent either sham surgery or T10 spinal cord transection and were categorized into 3 groups: sham, 1-week post-SCI (acute), and 4-week post-SCI (chronic). Colonic contractility was assessed in an organ bath using electrical field stimulation in the presence of a nitric oxide synthase inhibitor. Neural protein expression was analyzed by immunofluorescence and Western blotting.
Results:
SCI produced region- and time-dependent impairments in colonic contractility, with distinct alterations in the proximal circular and longitudinal muscles across acute and chronic phases. Neural excitability shifted dynamically, showing enhanced excitatory activity in the proximal longitudinal muscle at 1-week and the distal circular muscle at 4-week post-SCI. Protein analysis revealed increased neuronal nitric oxide synthase in the proximal colon, decreasedsoluble guanylyl cyclase in the distal colon, upregulated muscarinic M3 receptor in the proximal colon, and reduced vaso-active intestinal peptide receptor 1 in both proximal and distal regions.
Conclusion
SCI induces spatiotemporal remodeling of excitatory and inhibitory neural pathways, contributing to colonic dysmotility and revealing potential targets for therapeutic intervention.
3.Data-driven life-stage classification for companion dogs and cats using age-specific diagnosis patterns in South Korea
Jin-Young PARK ; Seogjin KANG ; Yoon Jung DO ; Eun-yeong BOK ; Jong Ryul PARK ; Tae Woo KIM ; Chang-Min LEE ; Woong-Bin RO ; Jang Yeop KIM ; Dong Yun LEE ; Heyong-Seok KIM ; Kyung-Duk MIN
Journal of Veterinary Science 2026;27(1):e5-
Objective:
To classify life stages for companion dogs and cats by identifying clusters in age-specific disease proportions derived from medical records, providing a data-driven foundation for health examination programs.
Methods:
We collected 505,667 medical records from 82 veterinary facilities in South Korea between 2020 and 2023. Diagnoses were standardized using GPT-4o and S-BioBERT. Following preprocessing, data from 27 facilities yielded 222,706 canine and 39,910 feline records for the final analysis. Principal component analysis and K-means clustering (K = 4) were applied to age-specific disease proportions to identify life stages.The 10 most highest-proportion diagnoses diseases were determined for each cluster.
Results:
Canine life stages were classified as ≤ 1 year, 2–5 years, 6–10 years, and 11–15+ years.Feline life stages were 1–2 years, 3–8 years, 9–12 years, and 13–15+ years. In dogs, developmental diseases were common in the youngest age group, while chronic diseases were more prevalent in older groups. In cats, oral and urinary diseases were high-ranking, conjunctivitis was most common in the early stage, and chronic diseases increased with age.
Conclusions
and Relevance: Age-specific diagnosis patterns support four practical life stages for dogs and cats in South Korea. These boundaries can inform evidence-based preventive examination schedules, animal health policy, and pet insurance product design.
4.Aggressive natural killer cell leukemia therapy in the L‑asparaginase era: why are we failing?
Sang Eun YOON ; Junhun CHO ; Hyun‑Young KIM ; Seok Jin KIM ; Won Seog KIM
Blood Research 2025;60():55-
Purpose:
Aggressive natural killer cell leukemia (ANKL) is a rare malignancy with poor prognosis and unclear treatment strategies. Given the poor prognosis and lack of a standardized treatment for ANKL, this study aimed to evaluate the clinical outcomes of L-asparaginase (L-ASNase)-based chemotherapy and hematopoietic stem cell transplantation (HCT).
Methods:
This retrospective study analyzed 51 patients with ANKL (2000–2023) to assess the clinical outcomes and efficacy of L-ASNase-based chemotherapy.
Results:
Among the study patients, 18 (36.7%) had poor performance status (ECOG-PS ≥ 3) and 7 (13.7%) died before initiating chemotherapy. Of the 44 treated patients, 30 (58.9%) received L-ASNase-based regimens, showing higher response rates (46.7% vs. 21.4%) and a slightly longer median duration of response (4.5 vs 4.2 months) than non-L-ASNase regimens. Complete administration of L-ASNase in the first cycle improved response rates (p = 0.019), but poor performance led to premature discontinuation (p = 0.011). Among the responders, those who subsequently underwent HCT demonstrated prolonged survival compared to those who did not. Median progression-free survival and overall survival were 0.8 and 1.6 months, respectively.
Conclusion
HCT was associated with improved survival, particularly among patients who responded to initial therapy. However, given the high frequency of poor performance status at diagnosis, a stepwise approach, including early supportive care, careful chemotherapy administration, and timely HCT, is crucial for optimizing ANKL outcomes.
5.Feasibility and accuracy of pediatric core temperature measurement using an esophageal probe inserted through the gastric lumen of a second-generation supraglottic airway device: a prospective observational study
Yeon-Ju KIM ; Eundong LEE ; Jaedo LEE ; Hyungtae KIM ; Won Uk KOH ; Young-Jin RO ; Ha-Jung KIM
Anesthesia and Pain Medicine 2024;19(Suppl 1):S105-S112
Background:
Accurate core temperature measurement in children is crucial; however, measuring esophageal temperature (TE) using a supraglottic airway device (SAD) can be challenging. Second-generation SADs, which have a gastric channel, can measure TE, and reduce gastric air volume. This study aimed to compare TE, measured using a probe inserted through the SAD gastric channel, with tympanic membrane (TTM) and forehead (TZHF) temperatures, measured using a zero-heat-flux cutaneous thermometer, with rectal temperature (TR).
Methods:
Temperature was recorded at 10-min intervals from 10 min after probe insertion until completion of surgery. We performed an equivalence test to evaluate whether the TE, TTM, and TZHF were equivalent to TR, with a margin of 0.3°C. Additionally, intraclass correlation coefficients (ICC) were calculated to assess the reliability of TE and TR at each time point.
Results:
We included 41 patients in the final analysis. In all patients, the esophageal probe was successfully inserted through the gastric channel of the SAD. When assessing agreement with TR as a reference, TE demonstrated equivalent results at all time points (P < 0.001 at 0, 10, 20, 30, and 40-min intervals and P = 0.018 at the 50-min interval), except at the completion of surgery (P = 0.697). TE also demonstrated good reliability with TR as a reference throughout the surgery (ICC > 0.75).
Conclusions
In children with SAD insertion, TE can be accurately and feasibly measured through the SAD’s gastric channel, making it suitable for routine application.
6.Feasibility and accuracy of pediatric core temperature measurement using an esophageal probe inserted through the gastric lumen of a second-generation supraglottic airway device: a prospective observational study
Yeon-Ju KIM ; Eundong LEE ; Jaedo LEE ; Hyungtae KIM ; Won Uk KOH ; Young-Jin RO ; Ha-Jung KIM
Anesthesia and Pain Medicine 2024;19(Suppl 1):S105-S112
Background:
Accurate core temperature measurement in children is crucial; however, measuring esophageal temperature (TE) using a supraglottic airway device (SAD) can be challenging. Second-generation SADs, which have a gastric channel, can measure TE, and reduce gastric air volume. This study aimed to compare TE, measured using a probe inserted through the SAD gastric channel, with tympanic membrane (TTM) and forehead (TZHF) temperatures, measured using a zero-heat-flux cutaneous thermometer, with rectal temperature (TR).
Methods:
Temperature was recorded at 10-min intervals from 10 min after probe insertion until completion of surgery. We performed an equivalence test to evaluate whether the TE, TTM, and TZHF were equivalent to TR, with a margin of 0.3°C. Additionally, intraclass correlation coefficients (ICC) were calculated to assess the reliability of TE and TR at each time point.
Results:
We included 41 patients in the final analysis. In all patients, the esophageal probe was successfully inserted through the gastric channel of the SAD. When assessing agreement with TR as a reference, TE demonstrated equivalent results at all time points (P < 0.001 at 0, 10, 20, 30, and 40-min intervals and P = 0.018 at the 50-min interval), except at the completion of surgery (P = 0.697). TE also demonstrated good reliability with TR as a reference throughout the surgery (ICC > 0.75).
Conclusions
In children with SAD insertion, TE can be accurately and feasibly measured through the SAD’s gastric channel, making it suitable for routine application.
7.Feasibility and accuracy of pediatric core temperature measurement using an esophageal probe inserted through the gastric lumen of a second-generation supraglottic airway device: a prospective observational study
Yeon-Ju KIM ; Eundong LEE ; Jaedo LEE ; Hyungtae KIM ; Won Uk KOH ; Young-Jin RO ; Ha-Jung KIM
Anesthesia and Pain Medicine 2024;19(Suppl 1):S105-S112
Background:
Accurate core temperature measurement in children is crucial; however, measuring esophageal temperature (TE) using a supraglottic airway device (SAD) can be challenging. Second-generation SADs, which have a gastric channel, can measure TE, and reduce gastric air volume. This study aimed to compare TE, measured using a probe inserted through the SAD gastric channel, with tympanic membrane (TTM) and forehead (TZHF) temperatures, measured using a zero-heat-flux cutaneous thermometer, with rectal temperature (TR).
Methods:
Temperature was recorded at 10-min intervals from 10 min after probe insertion until completion of surgery. We performed an equivalence test to evaluate whether the TE, TTM, and TZHF were equivalent to TR, with a margin of 0.3°C. Additionally, intraclass correlation coefficients (ICC) were calculated to assess the reliability of TE and TR at each time point.
Results:
We included 41 patients in the final analysis. In all patients, the esophageal probe was successfully inserted through the gastric channel of the SAD. When assessing agreement with TR as a reference, TE demonstrated equivalent results at all time points (P < 0.001 at 0, 10, 20, 30, and 40-min intervals and P = 0.018 at the 50-min interval), except at the completion of surgery (P = 0.697). TE also demonstrated good reliability with TR as a reference throughout the surgery (ICC > 0.75).
Conclusions
In children with SAD insertion, TE can be accurately and feasibly measured through the SAD’s gastric channel, making it suitable for routine application.
8.Feasibility and accuracy of pediatric core temperature measurement using an esophageal probe inserted through the gastric lumen of a second-generation supraglottic airway device: a prospective observational study
Yeon-Ju KIM ; Eundong LEE ; Jaedo LEE ; Hyungtae KIM ; Won Uk KOH ; Young-Jin RO ; Ha-Jung KIM
Anesthesia and Pain Medicine 2024;19(Suppl 1):S105-S112
Background:
Accurate core temperature measurement in children is crucial; however, measuring esophageal temperature (TE) using a supraglottic airway device (SAD) can be challenging. Second-generation SADs, which have a gastric channel, can measure TE, and reduce gastric air volume. This study aimed to compare TE, measured using a probe inserted through the SAD gastric channel, with tympanic membrane (TTM) and forehead (TZHF) temperatures, measured using a zero-heat-flux cutaneous thermometer, with rectal temperature (TR).
Methods:
Temperature was recorded at 10-min intervals from 10 min after probe insertion until completion of surgery. We performed an equivalence test to evaluate whether the TE, TTM, and TZHF were equivalent to TR, with a margin of 0.3°C. Additionally, intraclass correlation coefficients (ICC) were calculated to assess the reliability of TE and TR at each time point.
Results:
We included 41 patients in the final analysis. In all patients, the esophageal probe was successfully inserted through the gastric channel of the SAD. When assessing agreement with TR as a reference, TE demonstrated equivalent results at all time points (P < 0.001 at 0, 10, 20, 30, and 40-min intervals and P = 0.018 at the 50-min interval), except at the completion of surgery (P = 0.697). TE also demonstrated good reliability with TR as a reference throughout the surgery (ICC > 0.75).
Conclusions
In children with SAD insertion, TE can be accurately and feasibly measured through the SAD’s gastric channel, making it suitable for routine application.
9.Feasibility and accuracy of pediatric core temperature measurement using an esophageal probe inserted through the gastric lumen of a second-generation supraglottic airway device: a prospective observational study
Yeon-Ju KIM ; Eundong LEE ; Jaedo LEE ; Hyungtae KIM ; Won Uk KOH ; Young-Jin RO ; Ha-Jung KIM
Anesthesia and Pain Medicine 2024;19(Suppl 1):S105-S112
Background:
Accurate core temperature measurement in children is crucial; however, measuring esophageal temperature (TE) using a supraglottic airway device (SAD) can be challenging. Second-generation SADs, which have a gastric channel, can measure TE, and reduce gastric air volume. This study aimed to compare TE, measured using a probe inserted through the SAD gastric channel, with tympanic membrane (TTM) and forehead (TZHF) temperatures, measured using a zero-heat-flux cutaneous thermometer, with rectal temperature (TR).
Methods:
Temperature was recorded at 10-min intervals from 10 min after probe insertion until completion of surgery. We performed an equivalence test to evaluate whether the TE, TTM, and TZHF were equivalent to TR, with a margin of 0.3°C. Additionally, intraclass correlation coefficients (ICC) were calculated to assess the reliability of TE and TR at each time point.
Results:
We included 41 patients in the final analysis. In all patients, the esophageal probe was successfully inserted through the gastric channel of the SAD. When assessing agreement with TR as a reference, TE demonstrated equivalent results at all time points (P < 0.001 at 0, 10, 20, 30, and 40-min intervals and P = 0.018 at the 50-min interval), except at the completion of surgery (P = 0.697). TE also demonstrated good reliability with TR as a reference throughout the surgery (ICC > 0.75).
Conclusions
In children with SAD insertion, TE can be accurately and feasibly measured through the SAD’s gastric channel, making it suitable for routine application.
10.Comparison of preemptive and preventive intravenous acetaminophen on opioid consumption in pediatrics undergoing posterior spinal fusion surgery: a randomized controlled trial
Yeon Ju KIM ; Ha-Jung KIM ; Sehee KIM ; Hyungtae KIM ; Choon Sung LEE ; Chang Ju HWANG ; Jae Hwan CHO ; Young-Jin RO ; Won Uk KOH
Korean Journal of Anesthesiology 2024;77(3):326-334
Background:
Posterior spinal fusion (PSF), commonly used for adolescent idiopathic scoliosis (AIS), causes severe postoperative pain. Intravenous (IV) administration of acetaminophen has shown promise for opioid-sparing analgesia; however, its analgesic effect and optimal timing for its standard use remain unclear. Our study aimed to evaluate the analgesic effect and optimal timing of IV acetaminophen administration in pediatric and adolescent patients undergoing PSF and requiring adequate pain control.
Methods:
This prospective, randomized, triple-blind trial was conducted in patients aged 11–20 undergoing PSF. Participants were randomized into three groups: the preemptive group (received IV acetaminophen 15 mg/kg after anesthetic induction/before surgical incision), the preventive group (received IV acetaminophen 15 mg/kg at the end of surgery/before skin closure), and the placebo group. The primary outcome was cumulative opioid consumption during the first 24 h postoperatively.
Results:
Among the 99 enrolled patients, the mean ± standard deviation (SD) amount of opioid consumption during the postoperative 24 h was 60.66 ± 23.84, 52.23 ± 22.43, and 66.70 ± 23.01 mg in the preemptive, preventive, and placebo groups, respectively (overall P = 0.043). A post hoc analysis revealed that the preventive group had significantly lower opioid consumption than the placebo group (P = 0.013). However, no significant differences between the groups were observed for the secondary outcomes.
Conclusions
The preventive administration of scheduled IV acetaminophen reduces cumulative opioid consumption without increasing the incidence of drug-induced adverse events in pediatric and adolescent patients undergoing PSF.

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