1.Impact of tracheostomy on clinical outcomes in ventilated patients with severe pneumonia: a propensity-matched cohort study
Hayoung SEONG ; Hyojin JANG ; Wanho YOO ; Saerom KIM ; Soo Han KIM ; Kwangha LEE
The Korean Journal of Internal Medicine 2025;40(2):286-298
Background/Aims:
Tracheostomy is a crucial intervention for severe pneumonia patients requiring prolonged mechanical ventilation (MV). However, debate persists regarding the influence of tracheostomy timing and performance on long-term survival outcomes. This study utilized propensity score matching to assess the impact of tracheostomy timing and performance on patient survival outcomes.
Methods:
A retrospective observational study employing propensity score matching was conducted of respiratory intensive care unit (ICU) patients who underwent prolonged acute MV due to severe pneumonia from 2008 to 2023. The primary outcome was the 90-day cumulative mortality rate, with secondary outcomes including ICU medical resource utilization rates.
Results:
Out of 1,078 patients, 545 underwent tracheostomy with a median timing of 7 days. The tracheostomy group exhibited lower 90-day cumulative mortality and a higher survival probability (hazard ratio [HR] 0.52, 95% confidence interval [CI] 0.43–0.63) than the no-tracheostomy group. The tracheostomy group had higher ICU medical resource utilization rates and medical expenditures. The early tracheostomy group (≤ 7 days) had lower ICU medical resource utilization rates and medical expenditures than the late tracheostomy group (> 7 days). However, there were no significant differences in the 90-day cumulative mortality rate and survival probability based on tracheostomy timing (HR 0.94, 95% CI 0.70–1.28).
Conclusions
Tracheostomy in patients with severe pneumonia requiring prolonged MV significantly reduced the 90-day mortality rate, and early tracheostomy may offer additional benefits for resource utilization efficiency. These findings underscore the importance of considering tracheostomy timing in optimizing patient outcomes and healthcare resource allocation.
2.Impact of tracheostomy on clinical outcomes in ventilated patients with severe pneumonia: a propensity-matched cohort study
Hayoung SEONG ; Hyojin JANG ; Wanho YOO ; Saerom KIM ; Soo Han KIM ; Kwangha LEE
The Korean Journal of Internal Medicine 2025;40(2):286-298
Background/Aims:
Tracheostomy is a crucial intervention for severe pneumonia patients requiring prolonged mechanical ventilation (MV). However, debate persists regarding the influence of tracheostomy timing and performance on long-term survival outcomes. This study utilized propensity score matching to assess the impact of tracheostomy timing and performance on patient survival outcomes.
Methods:
A retrospective observational study employing propensity score matching was conducted of respiratory intensive care unit (ICU) patients who underwent prolonged acute MV due to severe pneumonia from 2008 to 2023. The primary outcome was the 90-day cumulative mortality rate, with secondary outcomes including ICU medical resource utilization rates.
Results:
Out of 1,078 patients, 545 underwent tracheostomy with a median timing of 7 days. The tracheostomy group exhibited lower 90-day cumulative mortality and a higher survival probability (hazard ratio [HR] 0.52, 95% confidence interval [CI] 0.43–0.63) than the no-tracheostomy group. The tracheostomy group had higher ICU medical resource utilization rates and medical expenditures. The early tracheostomy group (≤ 7 days) had lower ICU medical resource utilization rates and medical expenditures than the late tracheostomy group (> 7 days). However, there were no significant differences in the 90-day cumulative mortality rate and survival probability based on tracheostomy timing (HR 0.94, 95% CI 0.70–1.28).
Conclusions
Tracheostomy in patients with severe pneumonia requiring prolonged MV significantly reduced the 90-day mortality rate, and early tracheostomy may offer additional benefits for resource utilization efficiency. These findings underscore the importance of considering tracheostomy timing in optimizing patient outcomes and healthcare resource allocation.
3.Impact of tracheostomy on clinical outcomes in ventilated patients with severe pneumonia: a propensity-matched cohort study
Hayoung SEONG ; Hyojin JANG ; Wanho YOO ; Saerom KIM ; Soo Han KIM ; Kwangha LEE
The Korean Journal of Internal Medicine 2025;40(2):286-298
Background/Aims:
Tracheostomy is a crucial intervention for severe pneumonia patients requiring prolonged mechanical ventilation (MV). However, debate persists regarding the influence of tracheostomy timing and performance on long-term survival outcomes. This study utilized propensity score matching to assess the impact of tracheostomy timing and performance on patient survival outcomes.
Methods:
A retrospective observational study employing propensity score matching was conducted of respiratory intensive care unit (ICU) patients who underwent prolonged acute MV due to severe pneumonia from 2008 to 2023. The primary outcome was the 90-day cumulative mortality rate, with secondary outcomes including ICU medical resource utilization rates.
Results:
Out of 1,078 patients, 545 underwent tracheostomy with a median timing of 7 days. The tracheostomy group exhibited lower 90-day cumulative mortality and a higher survival probability (hazard ratio [HR] 0.52, 95% confidence interval [CI] 0.43–0.63) than the no-tracheostomy group. The tracheostomy group had higher ICU medical resource utilization rates and medical expenditures. The early tracheostomy group (≤ 7 days) had lower ICU medical resource utilization rates and medical expenditures than the late tracheostomy group (> 7 days). However, there were no significant differences in the 90-day cumulative mortality rate and survival probability based on tracheostomy timing (HR 0.94, 95% CI 0.70–1.28).
Conclusions
Tracheostomy in patients with severe pneumonia requiring prolonged MV significantly reduced the 90-day mortality rate, and early tracheostomy may offer additional benefits for resource utilization efficiency. These findings underscore the importance of considering tracheostomy timing in optimizing patient outcomes and healthcare resource allocation.
4.Impact of tracheostomy on clinical outcomes in ventilated patients with severe pneumonia: a propensity-matched cohort study
Hayoung SEONG ; Hyojin JANG ; Wanho YOO ; Saerom KIM ; Soo Han KIM ; Kwangha LEE
The Korean Journal of Internal Medicine 2025;40(2):286-298
Background/Aims:
Tracheostomy is a crucial intervention for severe pneumonia patients requiring prolonged mechanical ventilation (MV). However, debate persists regarding the influence of tracheostomy timing and performance on long-term survival outcomes. This study utilized propensity score matching to assess the impact of tracheostomy timing and performance on patient survival outcomes.
Methods:
A retrospective observational study employing propensity score matching was conducted of respiratory intensive care unit (ICU) patients who underwent prolonged acute MV due to severe pneumonia from 2008 to 2023. The primary outcome was the 90-day cumulative mortality rate, with secondary outcomes including ICU medical resource utilization rates.
Results:
Out of 1,078 patients, 545 underwent tracheostomy with a median timing of 7 days. The tracheostomy group exhibited lower 90-day cumulative mortality and a higher survival probability (hazard ratio [HR] 0.52, 95% confidence interval [CI] 0.43–0.63) than the no-tracheostomy group. The tracheostomy group had higher ICU medical resource utilization rates and medical expenditures. The early tracheostomy group (≤ 7 days) had lower ICU medical resource utilization rates and medical expenditures than the late tracheostomy group (> 7 days). However, there were no significant differences in the 90-day cumulative mortality rate and survival probability based on tracheostomy timing (HR 0.94, 95% CI 0.70–1.28).
Conclusions
Tracheostomy in patients with severe pneumonia requiring prolonged MV significantly reduced the 90-day mortality rate, and early tracheostomy may offer additional benefits for resource utilization efficiency. These findings underscore the importance of considering tracheostomy timing in optimizing patient outcomes and healthcare resource allocation.
5.Impact of tracheostomy on clinical outcomes in ventilated patients with severe pneumonia: a propensity-matched cohort study
Hayoung SEONG ; Hyojin JANG ; Wanho YOO ; Saerom KIM ; Soo Han KIM ; Kwangha LEE
The Korean Journal of Internal Medicine 2025;40(2):286-298
Background/Aims:
Tracheostomy is a crucial intervention for severe pneumonia patients requiring prolonged mechanical ventilation (MV). However, debate persists regarding the influence of tracheostomy timing and performance on long-term survival outcomes. This study utilized propensity score matching to assess the impact of tracheostomy timing and performance on patient survival outcomes.
Methods:
A retrospective observational study employing propensity score matching was conducted of respiratory intensive care unit (ICU) patients who underwent prolonged acute MV due to severe pneumonia from 2008 to 2023. The primary outcome was the 90-day cumulative mortality rate, with secondary outcomes including ICU medical resource utilization rates.
Results:
Out of 1,078 patients, 545 underwent tracheostomy with a median timing of 7 days. The tracheostomy group exhibited lower 90-day cumulative mortality and a higher survival probability (hazard ratio [HR] 0.52, 95% confidence interval [CI] 0.43–0.63) than the no-tracheostomy group. The tracheostomy group had higher ICU medical resource utilization rates and medical expenditures. The early tracheostomy group (≤ 7 days) had lower ICU medical resource utilization rates and medical expenditures than the late tracheostomy group (> 7 days). However, there were no significant differences in the 90-day cumulative mortality rate and survival probability based on tracheostomy timing (HR 0.94, 95% CI 0.70–1.28).
Conclusions
Tracheostomy in patients with severe pneumonia requiring prolonged MV significantly reduced the 90-day mortality rate, and early tracheostomy may offer additional benefits for resource utilization efficiency. These findings underscore the importance of considering tracheostomy timing in optimizing patient outcomes and healthcare resource allocation.
6.Impact of Mask on Patients with Facial Skin Disease in University Hospital after COVID-19 Pandemic: A Multicenter Questionnaire-Based Study
Seung Hee JANG ; Sang Woo AHN ; Seong Min HONG ; So Hee PARK ; So Young JUNG ; Han Young WANG ; Jung Eun SEOL ; Hyojin KIM
Korean Journal of Dermatology 2024;62(5):263-268
Background:
As the coronavirus disease (COVID-19) pandemic continues, wearing masks has become a daily routine. As the mask-wearing time increased, the mask-covered skin was more likely to be influenced.
Objective:
This study aimed to identify face mask-wearing behaviors and their effects on patients with facial skin diseases.
Methods:
Patients with facial skin disease were surveyed at two institutions. The patterns of mask use, mask-associated skin problems, and the Dermatology Life Quality Index (DLQI) were investigated.
Results:
A total of 174 participants were enrolled and the mean age was 42.2 years. Rosacea (35.6%) was the most common condition, followed by acne (25.3%) and contact dermatitis (17.2%). Ninety-four subjects (54.0%) reported that they wore masks for less than 6 hours a day, and 96 subjects (55.2%) wore masks to fit tightly against the face. Regarding the mask type, KF-99, 94, and 80 (62.6%) were the most common. Nearly three-quarters (n=128, 73.6%) of patients complained of mask-associated skin problems. Pimples were the most common symptom (59.4%), and the cheek was the most commonly affected area (67.2%). The mean DLQI score was 9.90.
Conclusion
We investigated the current patterns of mask use in patients with facial skin diseases. Moreover, it is necessary to recognize newly encountered relationships and seek strategies for relevant patients.
7.Disease Awareness, Medical Use Behavior, Diagnosis and Treatment Status, Quality of Life and Comorbidities in Primary Cicatricial Alopecia Patients: A Multicenter Survey
Seo Won SONG ; Dong Geon LEE ; Hoon KANG ; Bark-Lynn LEW ; Jee Woong CHOI ; Ohsang KWON ; Yang Won LEE ; Beom Joon KIM ; Young LEE ; Jin PARK ; Moon-Bum KIM ; Do Young KIM ; Sang Seok KIM ; Byung Cheol PARK ; Sang Hoon LEE ; Gwang Seong CHOI ; Hyun-Tae SHIN ; Chang Hun HUH ; Yong Hyun JANG ; Soo Hong SEO ; Jiehyun JEON ; Hyun Sun PARK ; Chong Hyun WON ; Min Sung KIM ; Byung In RO ; Ji Hyun LEE ; Ji Hae LEE ; Dong Soo YU ; Yu Ri WOO ; Hyojin KIM ; Jung Eun KIM
Korean Journal of Dermatology 2024;62(4):206-217
Background:
Primary cicatricial alopecia (PCA) is a rare disease that causes irreversible destruction of hair follicles and affects the quality of life (QOL).
Objective:
We aimed to investigate the disease awareness, medical use behavior, QOL, and real-world diagnosis and treatment status of patients with PCA.
Methods:
A self-administered questionnaire was administered to patients with PCA and their dermatologists. Patients aged between 19 and 75 years who visited one of 27 dermatology departments between September 2021 and September 2022 were included.
Results:
In total, 274 patients were included. The male-to-female ratio was 1:1.47, with a mean age of 45.7 years. Patients with neutrophilic and mixed PCA were predominantly male and younger than those with lymphocytic PCA. Among patients with lymphocytic PCA, lichen planopilaris was the most common type, and among those with neutrophilic PCA, folliculitis decalvans was the most common type. Among the total patients, 28.8% were previously diagnosed with PCA, 47.0% were diagnosed with PCA at least 6 months after their first hospital visit, 20.0% received early treatment within 3 months of disease onset, and 54.4% received steady treatment. More than half of the patients had a moderate to severe impairment in QOL. Topical/intralesional steroid injections were the most common treatment. Systemic immunosuppressants were frequently prescribed to patients with lymphocytic PCA, and antibiotics were mostly prescribed to patients with neutrophilic PCA.
Conclusion
This study provides information on the disease awareness, medical use behavior, QOL, diagnosis, and treatment status of Korean patients with PCA. This can help dermatologists educate patients with PCA to understand the necessity for early diagnosis and steady treatment.
8.Evaluation of Sleep Disturbance in Alopecia Areata through Questionnaire: Pittsburgh Sleep Quality Index as a Reasonable Tool
So Hee PARK ; Ki Hwan JI ; Jong Uk KIM ; Seung Hee JANG ; Sang Woo AHN ; Seong Min HONG ; Woo Jung JIN ; Jung Eun SEOL ; Hyojin KIM
Annals of Dermatology 2023;35(3):183-189
Background:
Alopecia areata (AA) is common non-scarring hair loss disease. Sleep distrubance has been regarded as a triggering or aggravating factor for AA. However, objective evaluation of sleep disturbance and its clinical effect on AA has not been clearly demonstrated.
Objective:
This study investigated objective sleep evaluation tool for AA patients and their clinical correlation.
Methods:
Patients presenting with new-onset AA or recurrences of pre-existing AA were included, and those who reported sleep disturbance in the preliminary survey were designated as the sleep disturbance group (SD group). Sleep quality was investigated for them using three self-administered questionnaires: Pittsburgh Sleep Quality Index (PSQI), Insomnia Severity Index (ISI), and Epworth Sleep Scale (ESS). Demographic information and clinical features of AA were analyzed according to sleep quality.
Results:
A total of 400 participants were enrolled, and 53 were categorized into the SD group. The incidence of stressful events was significantly higher in the SD group (54.7%) than in the non-SD group (25.1%) (p<0.001). Based on the PSQI, 77.3% of participants were objective poor sleepers (score of 5 or more), and they showed a significantly higher incidence of stressful events compared to good sleepers (p=0.019). The proportion of poor sleepers was significantly lower in patients with mild AA (S1) than in those with moderate to severe AA (S2~S5) (p=0.045).
Conclusion
This study demonstrated a positive correlation among stress, SD, and AA. The degree of SD was objectively represented by the PSQI score, showing different scores according to AA severity.
9.Efficacy and Safety of Fexuprazan in Patients with Acute or Chronic Gastritis
Gwang Ha KIM ; Myung-Gyu CHOI ; Jin Il KIM ; Soo Teik LEE ; Hoon Jai CHUN ; Kook Lae LEE ; Suk Chei CHOI ; Jae-Young JANG ; Yong Chan LEE ; Jae Gyu KIM ; Ki Bae KIM ; Ki-Nam SHIM ; Chong Il SOHN ; Sung Kook KIM ; Sang Gyun KIM ; Jin Seok JANG ; Nayoung KIM ; Hwoon-Yong JUNG ; Hyojin PARK ; Kyu Chan HUH ; Kwang Jae LEE ; Su Jin HONG ; Song BAEK ; Jin Joo HAN ; Oh Young LEE
Gut and Liver 2023;17(6):884-893
Background/Aims:
Fexuprazan is a novel potassium-competitive acid blocker that could be of benefit to patients with gastric mucosal injury. The aim of this study was to assess the 2-week efficacy and safety of fexuprazan in patients with acute or chronic gastritis.
Methods:
In this study, 327 patients with acute or chronic gastritis who had one or more gastric erosions on endoscopy and subjective symptoms were randomized into three groups receiving fexuprazan 20 mg once a day (q.d.), fexuprazan 10 mg twice a day (b.i.d.), or placebo for 2 weeks. The posttreatment assessments were the primary endpoint (erosion improvement rate), secondary endpoints (cure rates of erosion and edema and improvement rates of redness, hemorrhage, and subjective symptoms), and drug-related adverse events.
Results:
Among the patients, 57.8% (59/102), 65.7% (67/102), and 40.6% (39/96) showed erosion improvement 2 weeks after receiving fexuprazan 20 mg q.d., fexuprazan 10 mg b.i.d., and placebo, respectively. Both fexuprazan 20 mg q.d. and 10 mg b.i.d. showed superior efficacy to the placebo (p=0.017 and p<0.001, respectively). Likewise, both fexuprazan 20 mg q.d. and 10 mg b.i.d. also showed higher erosion healing rates than the placebo (p=0.033 and p=0.010, respectively). No difference was noted in the edema healing rate and the improvement rates for redness, hemorrhage, and subjective symptoms between the fexuprazan and placebo groups.No significant difference was noted in the incidence of adverse drug reactions.
Conclusions
Fexuprazan 20 mg q.d. and 10 mg b.i.d. for 2 weeks showed therapeutic efficacy superior to that of placebo in patients with acute or chronic gastritis (ClinicalTrials.gov identifier NCT04341454).
10.A Survey on the Perception and Behavior Regarding Tinea Pedis among Korean Adults
Minkyung CHO ; Yang Won LEE ; Dong Hun LEE ; Ki-Heon JEONG ; Soon Hyo KWON ; Jung Eun KIM ; Hyojin KIM ; Chan Ho NA ; Hyun-Min SEO ; Min Kyung SHIN ; Jiyoung AHN ; Yu Ri WOO ; Ga-Young LEE ; Yong Hyun JANG ; Hye Jung JUNG ; Yu Sung CHOI ; Tae Young HAN ; Ha-Eun LEE ; Chan Yl BANG ; Mi Woo LEE ; Dong Hyun KIM
Korean Journal of Dermatology 2023;61(7):420-428
Background:
Dermatophyte infection is one of the most common skin diseases affecting the skin, hair, and nails. Despite widespread recognition of the disease, missing details and misperceptions are commonplace in the general population.
Objective:
This study aimed to investigate the public perception and behavior regarding dermatophytosis of the hands and feet.
Methods:
This results from an online survey conducted between July 2022 and August 2022. The survey included 1,000 Korean participants aged 20 to 69 years, of whom 60% experienced symptoms of tinea pedis or onychomycosis. The questionnaire focused on the awareness and personal experience of tinea pedis and perception of the treatment of dermatophytosis.
Results:
Of the 1,000 participants, nearly 80% regarded tinea pedis as a common skin condition by which anyone can be affected. Furthermore, 88.4% had heard that the treatment of tinea pedis could be harmful, causing skin rash (60.4%) and worsening liver function (48.5%). Among 896 participants who noticed suspicious symptoms, 81.2% did not visit the clinic because it was not severe (50.1%) and seemed easily manageable (25.7%). Of the respondents, 84.4% preferred to meet dermatologists rather than non-dermatologist doctors regarding skin diseases, mainly because of trust in experts and belief in a faster cure.
Conclusion
Providing accurate and detailed information via online media, educational campaigns, and medical papers can rectify misconceptions and improve patient appliance, contributing to public skin health.

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