1.Three Diverse, Nearly Misdiagnosed Inflammatory, and Infectious Diseases at Atlantoaxial Joint
Jihong CHOI ; Sungwon KIM ; Duk Hyun SUNG ; Yoonju NA
Clinical Pain 2024;23(1):33-38
Severe neck pain, worsened by head rotation, may signal atlantoaxial joint involvement, prompting differentiation between inflammatory and mechanical causes. This study challenges conventions by presenting three cases where inflammatory diseases, typically associated with extremities, affect the atlantoaxial joint. Cases involve a 64-year-old woman with crowned dens syndrome (CDS) due to calcium pyrophosphate crystals, a 69-year-old male with septic arthritis at the C1-2 level and an 82-year-old female with rheumatoid arthritis (RA). Despite shared severe neck pain, patients with CDS and septic arthritis show notable neck rotation limitations, while the RA patient experiences joint pain without such constraints. Diagnostic methods include cervical computed tomography (CT) for CDS, and various imaging and blood tests for septic arthritis, and American College of Rheumatology/European League Against Rheumatism criteria (ACR/EULAR) for RA. These cases highlight atypical inflammatory manifestations at the atlantoaxial joint, urging consideration in severe neck pain scenarios.
2.Impairment of Mitochondrial ATP Synthesis Induces RIPK3-dependent Necroptosis in Lung Epithelial Cells During Lung Injury by Lung Inflammation
Su Hwan LEE ; Ju Hye SHIN ; Min Woo PARK ; Junhyung KIM ; Kyung Soo CHUNG ; Sungwon NA ; Ji-Hwan RYU ; Jin Hwa LEE ; Moo Suk PARK ; Young Sam KIM ; Jong-Seok MOON
Immune Network 2022;22(2):e18-
Dysfunction of mitochondrial metabolism is implicated in cellular injury and cell death.While mitochondrial dysfunction is associated with lung injury by lung inflammation, the mechanism by which the impairment of mitochondrial ATP synthesis regulates necroptosis during acute lung injury (ALI) by lung inflammation is unclear. Here, we showed that the impairment of mitochondrial ATP synthesis induces receptor interacting serine/threonine kinase 3 (RIPK3)-dependent necroptosis during lung injury by lung inflammation. We found that the impairment of mitochondrial ATP synthesis by oligomycin, an inhibitor of ATP synthase, resulted in increased lung injury and RIPK3 levels in lung tissues during lung inflammation by LPS in mice. The elevated RIPK3 and RIPK3 phosphorylation levels by oligomycin resulted in high mixed lineage kinase domain-like (MLKL) phosphorylation, the terminal molecule in necroptotic cell death pathway, in lung epithelial cells during lung inflammation. Moreover, the levels of protein in bronchoalveolar lavage fluid (BALF) were increased by the activation of necroptosis via oligomycin during lung inflammation.Furthermore, the levels of ATP5A, a catalytic subunit of the mitochondrial ATP synthase complex for ATP synthesis, were reduced in lung epithelial cells of lung tissues from patients with acute respiratory distress syndrome (ARDS), the most severe form of ALI. The levels of RIPK3, RIPK3 phosphorylation and MLKL phosphorylation were elevated in lung epithelial cells in patients with ARDS. Our results suggest that the impairment of mitochondrial ATP synthesis induces RIPK3-dependent necroptosis in lung epithelial cells during lung injury by lung inflammation.
3.Patterns of Cancer-Related Risk Behaviors Among Construction Workers in Hong Kong: A Latent Class Analysis Approach
Nan XIA ; Wendy LAM ; Pamela TIN ; Sungwon YOON ; Na ZHANG ; Weiwei ZHANG ; Ke MA ; Richard FIELDING
Safety and Health at Work 2020;11(1):26-32
Background:
Hong Kong's construction industry currently faces a manpower crisis. Blue-collar workers are a disadvantaged group and suffer higher levels of chronic diseases, for example, cancer, than the wider population. Cancer risk factors are likely to cluster together. We documented prevalence of cancer-associated lifestyle risk behaviors and their correlates among Hong Kong construction workers.
Methods:
Data were collected from workers at 37 railway-related construction worksites throughout Hong Kong during May 2014. Tobacco use, alcohol consumption, unbalanced nutrition intake, and physical inactivity were included in the analysis. Latent class analysis and multivariable logistic regression were performed to identify the patterns of risk behaviors related to cancer, as well as their impact factors among construction workers in Hong Kong.
Results:
Overall, 1,443 workers participated. Latent class analysis identified four different behavioral classes in the sample. Fully adjusted multiple logistic regression identified age, gender, years of Hong Kong residency, ethnicity, educational level, and living status differentiated behavioral classes.
Conclusion
High levels of lifestyle-related cancer-risk behaviors were found in most of the Hong Kong construction workers studied. The present study contributes to understanding how cancer-related lifestyle risk behaviors cluster among construction workers and relative impact factors of risk behaviors. It is essential to tailor health behavior interventions focused on multiple risk behaviors among different groups for further enlarging the effects on cancer prevention.
4.Procalcitonin-Guided Treatment on Duration of Antibiotic Therapy and Cost in Septic Patients (PRODA): a Multi-Center Randomized Controlled Trial
Kyeongman JEON ; Jae Kyung SUH ; Eun Jin JANG ; Songhee CHO ; Ho Geol RYU ; Sungwon NA ; Sang Bum HONG ; Hyun Joo LEE ; Jae Yeol KIM ; Sang Min LEE
Journal of Korean Medical Science 2019;34(14):e110-
BACKGROUND: The objective of this study was to establish the efficacy and safety of procalcitonin (PCT)-guided antibiotic discontinuation in critically ill patients with sepsis in a country with a high prevalence of antimicrobial resistance and a national health insurance system. METHODS: In a multi-center randomized controlled trial, patients were randomly assigned to a PCT group (stopping antibiotics based on a predefined cut-off range of PCT) or a control group. The primary end-point was antibiotic duration. We also performed a cost-minimization analysis of PCT-guided antibiotic discontinuation. RESULTS: The two groups (23 in the PCT group and 29 in the control group) had similar demographic and clinical characteristics except for need for renal replacement therapy on ICU admission (46% vs. 14%; P = 0.010). In the per-protocol analysis, the median duration of antibiotic treatment for sepsis was 4 days shorter in the PCT group than the control group (8 days; interquartile range [IQR], 6–10 days vs. 14 days; IQR, 12–21 days; P = 0.001). However, main secondary outcomes, such as clinical cure, 28-day mortality, hospital mortality, and ICU and hospital stays were not different between the two groups. In cost evaluation, PCT-guided therapy decreased antibiotic costs by USD 30 (USD 241 in the PCT group vs. USD 270 in the control group). The results of the intention-to-treat analysis were similar to those obtained for the per-protocol analysis. CONCLUSION: PCT-guided antibiotic discontinuation in critically ill patients with sepsis could reduce the duration of antibiotic use and its costs with no apparent adverse outcomes. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT02202941
Anti-Bacterial Agents
;
Biomarkers
;
Calcitonin
;
Costs and Cost Analysis
;
Critical Illness
;
Hospital Mortality
;
Humans
;
Intensive Care Units
;
Length of Stay
;
Mortality
;
National Health Programs
;
Prevalence
;
Renal Replacement Therapy
;
Sepsis
5.Perioperative factors associated with pressure ulcer development after major surgery
Jeong Min KIM ; Hyunjeong LEE ; Taehoon HA ; Sungwon NA
Korean Journal of Anesthesiology 2018;71(1):48-56
BACKGROUND: Postoperative pressure ulcers are important indicators of perioperative care quality, and are serious and expensive complications during critical care. This study aimed to identify perioperative risk factors for postoperative pressure ulcers. METHODS: This retrospective case-control study evaluated 2,498 patients who underwent major surgery. Forty-three patients developed postoperative pressure ulcers and were matched to 86 control patients based on age, sex, surgery, and comorbidities. RESULTS: The pressure ulcer group had lower baseline hemoglobin and albumin levels, compared to the control group. The pressure ulcer group also had higher values for lactate levels, blood loss, and number of packed red blood cell (pRBC) units. Univariate analysis revealed that pressure ulcer development was associated with preoperative hemoglobin levels, albumin levels, lactate levels, intraoperative blood loss, number of pRBC units, Acute Physiologic and Chronic Health Evaluation II score, Braden scale score, postoperative ventilator care, and patient restraint. In the multiple logistic regression analysis, only preoperative low albumin levels (odds ratio [OR]: 0.21, 95% CI: 0.05–0.82; P < 0.05) and high lactate levels (OR: 1.70, 95% CI: 1.07–2.71; P < 0.05) were independently associated with pressure ulcer development. A receiver operating characteristic curve was used to assess the predictive power of the logistic regression model, and the area under the curve was 0.88 (95% CI: 0.79–0.97; P < 0.001). CONCLUSIONS: The present study revealed that preoperative low albumin levels and high lactate levels were significantly associated with pressure ulcer development after surgery.
Case-Control Studies
;
Comorbidity
;
Critical Care
;
Erythrocytes
;
Humans
;
Lactic Acid
;
Logistic Models
;
Perioperative Care
;
Pressure Ulcer
;
Retrospective Studies
;
Risk Factors
;
ROC Curve
;
Ventilators, Mechanical
6.Perioperative factors associated with pressure ulcer development after major surgery
Jeong Min KIM ; Hyunjeong LEE ; Taehoon HA ; Sungwon NA
Korean Journal of Anesthesiology 2018;71(1):48-56
BACKGROUND:
Postoperative pressure ulcers are important indicators of perioperative care quality, and are serious and expensive complications during critical care. This study aimed to identify perioperative risk factors for postoperative pressure ulcers.
METHODS:
This retrospective case-control study evaluated 2,498 patients who underwent major surgery. Forty-three patients developed postoperative pressure ulcers and were matched to 86 control patients based on age, sex, surgery, and comorbidities.
RESULTS:
The pressure ulcer group had lower baseline hemoglobin and albumin levels, compared to the control group. The pressure ulcer group also had higher values for lactate levels, blood loss, and number of packed red blood cell (pRBC) units. Univariate analysis revealed that pressure ulcer development was associated with preoperative hemoglobin levels, albumin levels, lactate levels, intraoperative blood loss, number of pRBC units, Acute Physiologic and Chronic Health Evaluation II score, Braden scale score, postoperative ventilator care, and patient restraint. In the multiple logistic regression analysis, only preoperative low albumin levels (odds ratio [OR]: 0.21, 95% CI: 0.05–0.82; P < 0.05) and high lactate levels (OR: 1.70, 95% CI: 1.07–2.71; P < 0.05) were independently associated with pressure ulcer development. A receiver operating characteristic curve was used to assess the predictive power of the logistic regression model, and the area under the curve was 0.88 (95% CI: 0.79–0.97; P < 0.001).
CONCLUSIONS
The present study revealed that preoperative low albumin levels and high lactate levels were significantly associated with pressure ulcer development after surgery.
7.Effects of Early Exercise Rehabilitation on Functional Recovery in Patients with Severe Sepsis.
Jin Young AHN ; Je Eun SONG ; Hea Won ANN ; Yongduk JEON ; Mi Young AHN ; In Young JUNG ; Moo Hyun KIM ; Wooyoung JEONG ; Su Jin JEONG ; Nam Su KU ; June Myung KIM ; Sungwon NA ; Sung Rae CHO ; Jun Yong CHOI
Yonsei Medical Journal 2018;59(7):843-851
PURPOSE: Severe sepsis is associated with functional disability among patients surviving an acute phase of infection. Efforts to improve functional impairment are important. We assessed the effects of early exercise rehabilitation on functional outcomes in patients with severe sepsis. MATERIALS AND METHODS: A prospective, single-center, case-control study was conducted between January 2013 and May 2014 at a tertiary care center in Korea. Patients with severe sepsis and septic shock were enrolled and randomized to receive standard sepsis treatment or intervention. Intervention involved early targeted physical rehabilitation with sepsis treatment during hospitalization. Participants were assessed at enrollment, hospital discharge, and 6 months after enrollment. Functional recovery was measured using the Modified Barthel Index (MBI), Functional Independence Measure (FIM), and Instrumental Activities of Daily Living (IADL). RESULTS: Forty participants (21 intervention patients) were included in an intention-to-treat analysis. There were no significant differences in baseline MBI, FIM, and IADL between groups. Intervention yielded greater improvement of MBI, FIM, and IADL in the intervention group at hospital discharge, but not significantly. Subgroup analysis of patients with APACHE II scores ≥10 showed significantly greater improvement of physical function at hospital discharge (MBI and FIM) in the intervention group, compared to the control group (55.13 vs. 31.75, p=0.048; 52.40 vs. 31.25, p=0.045). Intervention was significantly associated with improvement of MBI in multiple linear regression analysis (standardized coefficient 0.358, p=0.048). CONCLUSION: Early physical rehabilitation may improve functional recovery at hospital discharge, especially in patients with high initial severity scores.
Activities of Daily Living
;
APACHE
;
Case-Control Studies
;
Hospitalization
;
Humans
;
Korea
;
Linear Models
;
Prospective Studies
;
Rehabilitation*
;
Sepsis*
;
Shock, Septic
;
Tertiary Care Centers
8.Myotonic Dystrophy Confirmed after Cesarean Section.
Seung Hyun KIM ; Jeongmin KIM ; Taehoon HA ; Sungwon NA
Korean Journal of Critical Care Medicine 2017;32(1):81-82
No abstract available.
Cesarean Section*
;
Female
;
Myotonic Dystrophy*
;
Pregnancy
9.Myotonic Dystrophy Confirmed after Cesarean Section
Seung Hyun KIM ; Jeongmin KIM ; Taehoon HA ; Sungwon NA
The Korean Journal of Critical Care Medicine 2017;32(1):81-82
No abstract available.
Cesarean Section
;
Female
;
Myotonic Dystrophy
;
Pregnancy
10.Recurrent Desaturation Events due to Opioid-Induced Chest Wall Rigidity after Low Dose Fentanyl Administration.
Sung Yeon HAM ; Bo Ra LEE ; Taehoon HA ; Jeongmin KIM ; Sungwon NA
Korean Journal of Critical Care Medicine 2016;31(2):118-122
Opioid-induced chest wall rigidity is an uncommon complication of opioids. Because of this, it is often difficult to make a differential diagnosis in a mechanically ventilated patient who experiences increased airway pressure and difficulty with ventilation. A 76-year-old female patient was admitted to the intensive care unit (ICU) after surgery for periprosthetic fracture of the femur neck. On completion of the surgery, airway pressure was increased, and oxygen saturation fell below 95% after a bolus dose of fentanyl. After ICU admission, the same event recurred. Manual ventilation was immediately started, and a muscle relaxant relieved the symptoms. There was no sign or symptom suggesting airway obstruction or asthma on physical examination. Early recognition and treatment should be made in a mechanically ventilated patient experiencing increased airway pressure in order to prevent further deterioration.
Aged
;
Airway Obstruction
;
Analgesics, Opioid
;
Asthma
;
Diagnosis, Differential
;
Female
;
Femur Neck
;
Fentanyl*
;
Humans
;
Intensive Care Units
;
Lung Diseases, Obstructive
;
Muscle Rigidity
;
Oxygen
;
Periprosthetic Fractures
;
Physical Examination
;
Thoracic Wall*
;
Thorax*
;
Ventilation

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