1.Artificial Intelligence-Enhanced Neurocritical Care for Traumatic Brain Injury : Past, Present and Future
Kyung Ah KIM ; Hakseung KIM ; Eun Jin HA ; Byung C. YOON ; Dong-Joo KIM
Journal of Korean Neurosurgical Society 2024;67(5):493-509
In neurointensive care units (NICUs), particularly in cases involving traumatic brain injury (TBI), swift and accurate decision-making is critical because of rapidly changing patient conditions and the risk of secondary brain injury. The use of artificial intelligence (AI) in NICU can enhance clinical decision support and provide valuable assistance in these complex scenarios. This article aims to provide a comprehensive review of the current status and future prospects of AI utilization in the NICU, along with the challenges that must be overcome to realize this. Presently, the primary application of AI in NICU is outcome prediction through the analysis of preadmission and high-resolution data during admission. Recent applications include augmented neuromonitoring via signal quality control and real-time event prediction. In addition, AI can integrate data gathered from various measures and support minimally invasive neuromonitoring to increase patient safety. However, despite the recent surge in AI adoption within the NICU, the majority of AI applications have been limited to simple classification tasks, thus leaving the true potential of AI largely untapped. Emerging AI technologies, such as generalist medical AI and digital twins, harbor immense potential for enhancing advanced neurocritical care through broader AI applications. If challenges such as acquiring high-quality data and ethical issues are overcome, these new AI technologies can be clinically utilized in the actual NICU environment. Emphasizing the need for continuous research and development to maximize the potential of AI in the NICU, we anticipate that this will further enhance the efficiency and accuracy of TBI treatment within the NICU.
2.Clinical Significance of Prognostic Nutrition Index in Patients with Crohn’s Disease after Primary Bowel Resection
Hyeon Woo BAE ; Yong Joon LEE ; Min Young PARK ; Seung Yoon YANG ; Yoon Dae HAN ; Min Soo CHO ; Hyuk HUR ; Kang Young LEE ; Jae Hee CHEON ; Joseph C. CARMICHAEL ; Byung Soh MIN
Yonsei Medical Journal 2024;65(7):380-388
Purpose:
Although advancements in medical treatments have been made, approximately half of patients with intestinal Crohn’s disease (CD) require intestinal resections during their lifetime. It is well-known that the nutritional status of CD patients can impact postoperative morbidity. The objective of this study was to evaluate the clinical significance of prognostic nutritional index (PNI) in patients with intestinal CD who underwent primary bowel resection.
Materials and Methods:
We retrospectively investigated patients who were diagnosed with CD and underwent intestinal surgery at Severance Hospital between January 2005 and October 2018. The patients were divided into two groups: PNI ≤40 (n=150) and PNI >40 (n=77). We assessed the clinical significance of PNI in terms of the incidence of postoperative infectious complications (PICs) and the postoperative recurrence of CD.
Results:
The low PNI group had significantly higher rates of infectious complications (32.0% vs. 10.4%, p=0.001) compared to the high PNI group. Multivariable analysis identified low PNI (≤40) and longer operation time (>180 min) as independent risk factors associated with PICs [odds ratio (OR)=2.754, 95% confidence interval (CI)=1.140–6.649, p=0.024; OR=2.986, 95% CI=1.451–6.143, p=0.003]. PICs were significantly associated with surgical recurrence (hazard ratio=2.217, 95% CI=1.064–4.617, p=0.034).
Conclusion
Preoperative PNI could serve as a predictive factor for PICs in CD patients who undergo intestinal resection. Additionally, PICs are significantly associated with a higher risk of surgical recurrence in CD.
3.Osteonecrosis of the Femoral Head: an Updated Review of ARCO on Pathogenesis, Staging and Treatment
Jeremy T. HINES ; Woo-Lam JO ; Quanjun CUI ; Michael A. MONT ; Kyung-Hoi KOO ; Edward Y. CHENG ; Stuart B. GOODMAN ; Yong-Chan HA ; Phillippe HERNIGOU ; Lynne C. JONES ; Shin-Yoon KIM ; Takashi SAKAI ; Nobuhiko SUGANO ; Takuaki YAMAMOTO ; Mel S. LEE ; Dewei ZHAO ; Wolf DRESCHER ; Tae-Young KIM ; Young-Kyun LEE ; Byung-Ho YOON ; Seung-Hoon BAEK ; Wataru ANDO ; Hong-Seok KIM ; Jung-Wee PARK
Journal of Korean Medical Science 2021;36(24):e177-
Non-traumatic osteonecrosis of the femoral head (ONFH) usually affects adults younger than 50 years and frequently leads to femoral head collapse and subsequent arthritis of the hip.It is becoming more prevalent along with increasing use of corticosteroids for the adjuvant therapy of leukemia and other myelogenous diseases as well as management of organ transplantation. This review updated knowledge on the pathogenesis, classification criteria, staging system, and treatment of ONFH.
4.Retinol-binding protein-4 was associated with sensitization to inhalant allergens in the elderly population
Byung-Keun KIM ; Woo-Jung SONG ; Bomi SEO ; Ju-Young KIM ; Sae-Hoon KIM ; Hak C. JANG ; Ki-Woong KIM ; Yoon-Seok CHANG
The Korean Journal of Internal Medicine 2021;36(2):447-455
Background/Aims:
Recent evidence suggests an association between allergic sensitization and metabolic markers. However, this association has rarely been examined in the elderly. Retinol-binding protein-4 (RBP-4) is a recently identified adipokine that acts on the muscle and liver affecting insulin sensitivity. We evaluated the association between metabolic parameters and allergic sensitization in the elderly.
Methods:
We analysed the database of the Korean Longitudinal Study on Health and Aging cohort study conducted during 2005 to 2006. Atopy was identified by inhalant allergen skin prick test. Metabolic conditions were assessed using anthropometric indices and serum biomarkers such as fasting glucose, lipid, adiponectin, and RBP-4.
Results:
Among the 854 elderly subjects, 17.2% had atopy. Plasma RBP-4 levels were significantly higher in the atopic elderly than nonatopic elderly (p = 0.003). When RBP-4 percentiles were categorized as under three groups, the prevalence of atopy and current rhinitis increased significantly with percentiles of RBP-4 levels (p = 0.019 and p = 0.007, respectively). Log RBP-4 was associated with atopy (odds ratio [OR], 4.10; p = 0.009) and current rhinitis (OR, 2.73; p = 0.014), but not with current asthma (OR, 1.17; p = 0.824). Higher RBP-4 level in atopic elderly was also observed in current rhinitis patients. Atopy, but not current rhinitis, showed significant relationships with log RBP-4 levels in multivariate analyses adjusted for other metabolic markers including body mass index.
Conclusions
RBP-4 positively associated with atopy in the general elderly population irrespective of other metabolic markers.
5.Ultimate COVID-19 Detection Protocol Based on Saliva Sampling and qRT-PCR with Risk Probability Assessment
Joungha WON ; Hasan Hüseyin KAZAN ; Jea KWON ; Myungsun PARK ; Mehmet Ali ERGUN ; Sureyya OZCAN ; Byung Yoon CHOI ; Won Do HEO ; C. Justin LEE
Experimental Neurobiology 2021;30(1):13-31
In the era of COVID-19 outbreak, various efforts are undertaken to develop a quick, easy, inexpensive, and accurate way for diagnosis. Although many commercial diagnostic kits are available, detailed scientific evaluation is lacking, making the public vulnerable to fear of false-positive results.Moreover, current tissue sampling method from respiratory tract requires personal contact of medical staff with a potential asymptomatic SARSCOV-2 carrier and calls for safe and less invasive sampling method. Here, we have developed a convenient detection protocol for SARS-COV-2 based on a non-invasive saliva self-sampling method by extending our previous studies on development of a laboratory-safe and low-cost detection protocol based on qRT-PCR. We tested and compared various self-sampling methods of self-pharyngeal swab and self-saliva sampling from non-carrier volunteers. We found that the self-saliva sampling procedure gave expected negative results from all of the non-carrier volunteers within 2 hours, indicating cost-effectiveness, speed and reliability of the saliva-based method. For an automated assessment of the sampling quality and degree of positivity for COVID-19, we developed scalable formulae based on a logistic classification model using both cycle threshold and melting temperature from the qRT-PCR results. Our newly developed protocol will allow easy sampling and spatial-separation between patient and experimenter for guaranteed safety. Furthermore, our newly established risk assessment formula can be applied to a large-scale diagnosis in health institutions and agencies around the world.
6.Osteonecrosis of the Femoral Head: an Updated Review of ARCO on Pathogenesis, Staging and Treatment
Jeremy T. HINES ; Woo-Lam JO ; Quanjun CUI ; Michael A. MONT ; Kyung-Hoi KOO ; Edward Y. CHENG ; Stuart B. GOODMAN ; Yong-Chan HA ; Phillippe HERNIGOU ; Lynne C. JONES ; Shin-Yoon KIM ; Takashi SAKAI ; Nobuhiko SUGANO ; Takuaki YAMAMOTO ; Mel S. LEE ; Dewei ZHAO ; Wolf DRESCHER ; Tae-Young KIM ; Young-Kyun LEE ; Byung-Ho YOON ; Seung-Hoon BAEK ; Wataru ANDO ; Hong-Seok KIM ; Jung-Wee PARK
Journal of Korean Medical Science 2021;36(24):e177-
Non-traumatic osteonecrosis of the femoral head (ONFH) usually affects adults younger than 50 years and frequently leads to femoral head collapse and subsequent arthritis of the hip.It is becoming more prevalent along with increasing use of corticosteroids for the adjuvant therapy of leukemia and other myelogenous diseases as well as management of organ transplantation. This review updated knowledge on the pathogenesis, classification criteria, staging system, and treatment of ONFH.
7.Drug hypersensitivity reactions in Asia: regional issues and challenges
Bernard Yu Hor THONG ; Michaela LUCAS ; Hye Ryun KANG ; Yoon Seok CHANG ; Philip Hei LI ; Min Moon TANG ; James YUN ; Jie Shen FOK ; Byung Keun KIM ; Mizuho NAGAO ; Iris RENGGANIS ; Yi Giien TSAI ; Wen Hung CHUNG ; Masao YAMAGUCHI ; Ticha RERKPATTANAPIPAT ; Wasu KAMCHAISATIAN ; Ting Fan LEUNG ; Ho Joo YOON ; Luo ZHANG ; Amir Hamzah Abdul LATIFF ; Takao FUJISAWA ; Francis THIEN ; Mariana C CASTELLS ; Pascal DEMOLY ; Jiu Yao WANG ; Ruby PAWANKAR
Asia Pacific Allergy 2020;10(1):8-
There are geographical, regional, and ethnic differences in the phenotypes and endotypes of patients with drug hypersensitivity reactions (DHRs) in different parts of the world. In Asia, aspects of drug hypersensitivity of regional importance include IgE-mediated allergies and T-cell-mediated reactions, including severe cutaneous adverse reactions (SCARs), to beta-lactam antibiotics, antituberculous drugs, nonsteroidal anti-inflammatory drugs (NSAIDs) and radiocontrast agents. Delabeling of low-risk penicillin allergy using direct oral provocation tests without skin tests have been found to be useful where the drug plausibility of the index reaction is low. Genetic risk associations of relevance to Asia include human leucocyte antigen (HLA)-B*1502 with carbamazepine SCAR, and HLA-B*5801 with allopurinol SCAR in some Asian ethnic groups. There remains a lack of safe and accurate diagnostic tests for antituberculous drug allergy, other than relatively high-risk desensitization regimes to first-line antituberculous therapy. NSAID hypersensitivity is common among both adults and children in Asia, with regional differences in phenotype especially among adults. Low dose aspirin desensitization is an important therapeutic modality in individuals with cross-reactive NSAID hypersensitivity and coronary artery disease following percutaneous coronary intervention. Skin testing allows patients with radiocontrast media hypersensitivity to confirm the suspected agent and test for alternatives, especially when contrasted scans are needed for future monitoring of disease relapse or progression, especially cancers.
Adult
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Allopurinol
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Anaphylaxis
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Anti-Bacterial Agents
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Asia
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Asian Continental Ancestry Group
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Aspirin
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Asthma
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Carbamazepine
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Child
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Cicatrix
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Contrast Media
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Coronary Artery Disease
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Diagnostic Tests, Routine
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Drug Hypersensitivity
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Ethnic Groups
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Humans
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Hypersensitivity
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Penicillins
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Percutaneous Coronary Intervention
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Phenotype
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Recurrence
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Skin Tests
8.Development of a Laboratory-safe and Low-cost Detection Protocol for SARS-CoV-2 of the Coronavirus Disease 2019 (COVID-19)
Joungha WON ; Solji LEE ; Myungsun PARK ; Tai Young KIM ; Mingu Gordon PARK ; Byung Yoon CHOI ; Dongwan KIM ; Hyeshik CHANG ; V. Narry KIM ; C. Justin LEE
Experimental Neurobiology 2020;29(2):107-119
The severe acute respiratory coronavirus 2 (SARS-CoV-2), which emerged in December 2019 in Wuhan, China, has spread rapidly to over a dozen countries. Especially, the spike of case numbers in South Korea sparks pandemic worries. This virus is reported to spread mainly through personto- person contact via respiratory droplets generated by coughing and sneezing, or possibly through surface contaminated by people coughing or sneezing on them. More critically, there have been reports about the possibility of this virus to transmit even before a virus-carrying person to show symptoms. Therefore, a low-cost, easy-access protocol for early detection of this virus is desperately needed. Here, we have established a real-time reverse-transcription PCR (rtPCR)-based assay protocol composed of easy specimen self-collection from a subject via pharyngeal swab, Trizolbased RNA purification, and SYBR Green-based rtPCR. This protocol shows an accuracy and sensitivity limit of 1-10 virus particles as we tested with a known lentivirus. The cost for each sample is estimated to be less than 15 US dollars. Overall time it takes for an entire protocol is estimated to be less than 4 hours. We propose a cost-effective, quick-and-easy method for early detection of SARS-CoV-2 at any conventional Biosafety Level II laboratories that are equipped with a rtPCR machine. Our newly developed protocol should be helpful for a first-hand screening of the asymptomatic virus-carriers for further prevention of transmission and early intervention and treatment for the rapidly propagating virus.
9.Development of a Laboratory-safe and Low-cost Detection Protocol for SARS-CoV-2 of the Coronavirus Disease 2019(COVID-19)
Joungha WON ; Solji LEE ; Myungsun PARK ; Tai Young KIM ; Mingu Gordon PARK ; Byung Yoon CHOI ; Dongwan KIM ; Hyeshik CHANG ; Won Do HEO ; V. Narry KIM ; C. Justin LEE
Experimental Neurobiology 2020;29(5):402-402
10.Erratum: Stroke Epidemiology in South, East, and South-East Asia: A Review
Narayanaswamy VENKETASUBRAMANIAN ; Byung Woo YOON ; Jeyaraj PANDIAN ; Jose C NAVARRO
Journal of Stroke 2018;20(1):142-142
On page 287, “The lowest rates are observed in Japan (43.4/1,000,000 person-years and Singapore (47.9/100,000 person-years), followed by Bangladesh, Papua New Guinea, and Bhutan.” sentence should be corrected.

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