1.Predicting serum acetaminophen concentrations in acute poisoning for safe termination of N-acetylcysteine in a resource-limited environment
Dahae KIM ; Kyungman CHA ; Byung Hak SO
Journal of The Korean Society of Clinical Toxicology 2023;21(2):128-134
Purpose:
The Prescott nomogram has been utilized to forecast hepatotoxicity from acute acetaminophen poisoning. In developing countries, emergency medical centers lack the resources to report acetaminophen concentrations; thus, the commencement and cessation of treatment are based on the reported dose. This study investigated risk factors that can predict acetaminophen detection after 15 hours for safe treatment termination.
Methods:
Data were collected from an urban emergency medical center from 2010 to 2020. The study included patients ≥14 years of age with acute acetaminophen poisoning within 15 hours. The correlation between risk factors and detection of acetaminophen 15 hours after ingestion was evaluated using logistic regression, and the area under the curve (AUC) was calculated.
Results:
In total, 181 patients were included in the primary analysis; the median dose was 150.9 mg/kg and 35 patients (19.3%) had acetaminophen detected 15 hours after ingestion. The dose per weight and the time to visit were significant predictors for acetaminophen detection after 15 hours (odds ratio, 1.020 and 1.030, respectively). The AUCs were 0.628 for a 135 mg/kg cut-off value and 0.658 for a cut-off 450 minutes, and that of the combined model was 0.714 (sensitivity: 45.7%, specificity: 91.8%).
Conclusion
Where acetaminophen concentrations are not reported during treatment following the UK guidelines, it is safe to start N-acetylcysteine immediately for patients who are ≥14 years old, visit within 15 hours after acute poisoning, and report having ingested ≥135 mg/kg. Additional N-acetylcysteine doses should be considered for patients visiting after 8 hours.
2.Untact Visit Service Development Based on an Application Reflecting the Circumstances during COVID-19: Focusing on Utilization in the Pediatric Intensive Care Units
Dahae WOO ; Hanui YU ; Hyo Jin KIM ; Minyoung CHOI ; Dong Hee KIM
Journal of Korean Academy of Nursing 2021;51(5):573-584
Purpose:
This study aimed to develop an untact visit service based on an application that can be utilized in the pediatric intensive care unit (PICU) during COVID-19.
Methods:
This study adopted the double diamond process of service design comprising the discovery, defining, and development stages.
Results:
We developed an untact visit service based on an application that considered the child’s status, schedule, photo, and video messages, and so on. Moreover, we derived a service flow regarding the required roles and the type of flow shown between each stakeholder.
Conclusion
Considering the ongoing pandemic, the untact visit service is designed to increase rapport and participation of parents, share the child’s information in real-time, and provide one-stop service without increasing healthcare providers’ work. It will be a useful visit service that can be applied and evaluated in various hospital settings and the PICU.
3.Recent Findings on the Mechanism of Cisplatin-Induced Renal Cytotoxicity and Therapeutic Potential of Natural Compounds
Dahae LEE ; Sungyoul CHOI ; Noriko YAMABE ; Ki Hyun KIM ; Ki Sung KANG
Natural Product Sciences 2020;26(1):28-49
The efficacy and side effects associated with anticancer drugs have attracted an extensive research focus. Onconephrology is an evolving field of nephrology that deals with the study of kidney diseases in cancer patients. Most renal diseases in cancer patients are unique, and management of renal disease can be challenging especially in the presence of continuing use of the nephrotoxic drugs. Cisplatin is one of the most important chemotherapeutic agents used in the treatment of various malignancies, such as head, neck, ovarian, and cervical cancers. The major limitation in the clinical use of cisplatin is its tendency to induce adverse effects, such as nephrotoxicity. Recently, plant-derived phytochemicals have emerged as novel agents providing protection against cisplatin-induced renal cytotoxicity. Owing to the diversity of phytochemicals, they cover a wide spectrum of therapeutic indications in cancer and inflammation and have been a productive source of lead compounds for the development of novel medications. Of these agents, the effectiveness of triterpenoids, isolated from various medicinal plants, against cisplatin-induced renal cytotoxicity has been reported most frequently compared to other phytochemicals. Triterpenes are one of the most numerous and diverse groups of plant natural products. Triterpenes ameliorate cisplatin-induced renal damage through multiple pathways by inhibiting reactive oxygen species, inflammation, down-regulation of the MAPK, apoptosis, and NF-κB signaling pathways and upregulation of Nrf2-mediated antioxidant defense mechanisms. Here, we reviewed recent findings on the natural compounds with protective potential in cisplatin-induced renal cytotoxicity, provided an overview of the protective effects and mechanisms that have been identified to date, and discussed strategies to reduce renal cytotoxicity induced by anticancer drugs.
4.Collaborative Disaster Governance Recognized by Nurses during a Pandemic
Dahae RIM ; Hyunsook SHIN ; Hyejin JEON ; Jieun KIM ; Hyojin CHUN ; Hee OH ; Soonyoung SHON ; Kaka SHIM ; Kyung Mi KIM
Journal of Korean Academy of Nursing 2021;51(6):703-719
Purpose:
We aimed to identify collaborative disaster governance through the demand and supply analysis of resources recognized by nurses during the COVID-19 pandemic.
Methods:
We used a descriptive study design with an online survey technique for data collection. The survey questions were developed based on focus group interviews with nurses responding to COVID-19 and expert validity testing. A 42-question online survey focusing on disaster governance was sent to nurses working in COVID-19 designated hospitals, public health offices, and schools. A total of 630 nurses participated in the survey. Demand and supply analysis was used to identify the specific components of disaster governance during a pandemic situation and analyze priority areas in disaster governance, as reported by nurses.
Results:
Demand and supply analysis showed that supplies procurement, cooperation, education, and environment factors clustered in the high demand and supply quadrant while labor condition, advocacy, emotional support, and workload adjustment factors clustered in the high demand but low supply quadrant, indicating a strong need in those areas of disaster governance among nurses. The nurses practicing at the public health offices and schools showed major components of disaster governance plotted in the second quadrant, indicating weak collaborative disaster governance.
Conclusion
These findings show that there is an unbalanced distribution among nurses, resulting in major challenges in collaborative disaster governance during COVID-19. In the future and current pandemic, collaborative disaster governance, through improved distribution, will be useful for helping nurses to access more required resources and achieve effective pandemic response.
5.A Case of Bacteremia by Neisseria gonorrhoeae Coincident with Massive Hemorrhage of Esophageal Varices.
Dahae WON ; Dongheui AN ; Mi Na KIM ; Young Sang LEE
The Korean Journal of Laboratory Medicine 2011;31(2):118-121
A 42-yr-old man with hepatitis B virus associated liver cirrhosis was admitted to the emergency room because of multiple seizures, a history of chills and myalgia over the previous 2 weeks, and 3 days of melena. He was febrile with a temperature of 38.0degrees C. There were no symptoms and signs related to the genitourinary system, skin, or joints. Three sets of blood cultures were obtained and oxidase-positive, gram-negative diplococci were detected after 25.9-26.9 hr of incubation in all aerobic vials. The organism was positive for catalase and oxidase, and was identified as Neisseria gonorrhoeae, using a Vitek Neisseria-Haemophilus Identification card (bioMerieux Vitek, Inc., USA). Further, 16S rRNA sequencing of this isolate revealed a 99.9% homology with the published sequence of N. gonorrhoeae strain NCTC 83785 (GenBank Accession No. NR_026079.1). Acute bleeding by variceal rupture seems to be a likely route of introduction of N. gonorrhoeae from the mucosa into the blood. To the best of our knowledge, this is the first case of gonococcal bacteremia in Korea.
Adult
;
Bacteremia/complications/*diagnosis/microbiology
;
Catalase/metabolism
;
Esophageal and Gastric Varices/complications/*diagnosis
;
Gastrointestinal Hemorrhage/*etiology
;
Gonorrhea/complications/*diagnosis/microbiology
;
Humans
;
Ligation
;
Liver Cirrhosis/diagnosis
;
Male
;
Neisseria gonorrhoeae/genetics/*isolation & purification
;
Oxidoreductases/metabolism
;
RNA, Ribosomal, 16S/chemistry/genetics
;
Sequence Analysis, DNA
6.Occurrence of a PCR-Positive but Culture-Negative Case for vanB Vancomycin-Resistant Enterococci in Stool Surveillance.
Dahae WON ; Ki Ho HONG ; Kyungah YUN ; Heungsup SUNG ; Mi Na KIM
Laboratory Medicine Online 2013;3(4):264-268
We present here occurence of PCR-positive but culture-negative for vanB vancomycin-resistant enterococci (VRE) from an enrichment broth of a stool surveillance culture in a patient suffering from Parkinson's disease, who was transferred from a long-term care facility because of aspiration pneumonia. He developed VRE bacteriuria at the hospital day 42. vanA and vanB genes were detected from 6 microg/mL vancomycin-containing BBL Enterococcosel broth (BD), of which color changed to black after overnight incubation, by both Seeplex VRE detection (Seegene, Seoul, Korea) and Anyplex VanR real-time PCR (Seegene). Subculture of an aliquot of the blackened broth on blood agar plate produced only vanA VRE. All of the four subsequent consecutive surveillance cultures for 1 month until discharge at hospital day 75 resulted in PCR-positive but culture-negative for vanB VRE from the enrichment broths. Therefore, the presence of a non-enterococcal intrinsic reservoir bearing vanB is more likely than low burden of vanB VRE. Considering the rare occurrence of vanB VRE in Korea, vanB-positive PCR results from the enrichment broth requires confirmation by microbiological studies.
Agar
;
Bacteriuria
;
Enterococcus
;
Humans
;
Korea
;
Long-Term Care
;
Parkinson Disease
;
Pneumonia, Aspiration
;
Polymerase Chain Reaction
;
Real-Time Polymerase Chain Reaction
;
Stress, Psychological
;
Ursidae
;
Vancomycin
7.The Perceptual and Consonant Analysis for the Voice with Hypothyroidism.
Baek Hwa HAN ; Dahae LEE ; Joon Sun KIM ; Ki Hwan HONG
Journal of the Korean Society of Laryngology Phoniatrics and Logopedics 2016;27(2):95-101
BACKGROUND AND OBJECTIVES: The main purpose of this study is to clarify perceptual and acoustic analysis for the patients with hypothyroidism after thyroidectomy especially focused on the characteristics of speech articulation with special reference to the consonant production. MATERIALS AND METHODS: The subjects of the research were 40 male and female adults (males : 5, females : 35). They were all received radioactive iodine treatment which after total thyroidectomy. Voice samples were collected during the three stages of after surgery, pre-radioisotope treatment (RIT), and post-RIT. The acoustic analysis was conducted by using Pratt (ver.5.2.21) after measuring voice onset time (VOT). The subjective evaluation of the voices used CAPE-V. RESULTS: A significant decrease in overall severity was displayed in the CAPE-V following RIT. It may be conjectured that this is connected to the change in voice following RIT. The loudness of the sound displayed a significant decrease in the CAPE-V following RIT. It is conjectured that this is connected to the decrease in vocal intensity following RIT. No statistically significant results were revealed for the comparative analysis on the voice onset time (VOT) in all plosives during the three periods. CONCLUSION: Perceptually, the overall severity of the voice with hypothyroidism was changed significantly before and after RIT. Eventhough VOT were not significantly changed, it tended to decrease VOT in patients with hypothyroidism.
Acoustics
;
Adult
;
Female
;
Humans
;
Hypothyroidism*
;
Iodine
;
Male
;
Thyroidectomy
;
Voice*
8.Comparison of IRIS Iq200, UF-1000i, and Cobas u701 Module Automated Urine Sediment Analyzers
Hyunji CHOI ; Dahae YANG ; Sun Ja KWON ; Poo Reum KANG ; Hasung PARK ; Teayun KIM ; Hyunyong HWANG
Laboratory Medicine Online 2020;10(4):283-294
Background:
We sought to compare the performance of three commercially available automated urine sediment analyzers that represent the current urine sediment analysis technology.
Methods:
A total of 232 patient samples were analyzed using manual microscopy and three automated analyzers: IRIS Iq200 (Beckman Coulter, USA), UF-1000i (Sysmex, Japan), and Cobas u701 (Roche, Switzerland). We analyzed precision, linearity, carry-over, concordance rate, and agreement between the three analyzers and manual microscopy.
Results:
The repeatability and within-laboratory precision showed results similar to those of previous studies. All analyzers showed excellent linearity. The carry-over rates were within 1%. The correlation coefficient (r) between the three analyzers and manual microscopy was good. Regarding red blood cell (RBC), the UF-1000i showed a better concordance rate (90.52%) with manual microscopy than the other two analyzers and the agreement was substantial for UF-1000i (κ=0.63) and IRIS Iq200 (κ=0.61). Regarding white blood cell (WBC), Cobas u701 showed the best concordance rate (96.55%) and the agreement was moderate for IRIS Iq200 (κ=0.57) and Cobas u701 (κ=0.56), and fair for UF-1000i (κ=0.47). Regarding epithelial cell (EPI), IRIS Iq200 showed the highest concordance rate (99.2%) and the agreement was moderate for IRIS Iq200 (κ=0.59) and Cobas u701 (κ=0.54), and fair for UF-1000i (κ=0.40).
Conclusions
IRIS Iq200 offered the best agreement with manual microscopy for WBC and EPI count, while UF-1000i showed a better agreement for RBC count. The agreement is insufficient for fully replacing the manual microscopy.
9.Comparison of IRIS Iq200, UF-1000i, and Cobas u701 Module Automated Urine Sediment Analyzers
Hyunji CHOI ; Dahae YANG ; Sun Ja KWON ; Poo Reum KANG ; Hasung PARK ; Teayun KIM ; Hyunyong HWANG
Laboratory Medicine Online 2020;10(4):283-294
Background:
We sought to compare the performance of three commercially available automated urine sediment analyzers that represent the current urine sediment analysis technology.
Methods:
A total of 232 patient samples were analyzed using manual microscopy and three automated analyzers: IRIS Iq200 (Beckman Coulter, USA), UF-1000i (Sysmex, Japan), and Cobas u701 (Roche, Switzerland). We analyzed precision, linearity, carry-over, concordance rate, and agreement between the three analyzers and manual microscopy.
Results:
The repeatability and within-laboratory precision showed results similar to those of previous studies. All analyzers showed excellent linearity. The carry-over rates were within 1%. The correlation coefficient (r) between the three analyzers and manual microscopy was good. Regarding red blood cell (RBC), the UF-1000i showed a better concordance rate (90.52%) with manual microscopy than the other two analyzers and the agreement was substantial for UF-1000i (κ=0.63) and IRIS Iq200 (κ=0.61). Regarding white blood cell (WBC), Cobas u701 showed the best concordance rate (96.55%) and the agreement was moderate for IRIS Iq200 (κ=0.57) and Cobas u701 (κ=0.56), and fair for UF-1000i (κ=0.47). Regarding epithelial cell (EPI), IRIS Iq200 showed the highest concordance rate (99.2%) and the agreement was moderate for IRIS Iq200 (κ=0.59) and Cobas u701 (κ=0.54), and fair for UF-1000i (κ=0.40).
Conclusions
IRIS Iq200 offered the best agreement with manual microscopy for WBC and EPI count, while UF-1000i showed a better agreement for RBC count. The agreement is insufficient for fully replacing the manual microscopy.
10.Pitfalls of ABO Genotyping Based on Targeted Single Nucleotide Variant Analysis Due to a Nondeletional O Allele Lacking c.261delG: First Report of ABO*O.09.01 in Korea
Dahae YANG ; Boram KIM ; Da Young SONG ; Tae Yeul KIM ; Man Jin KIM ; Sung Im CHO ; Hyungsuk KIM ; Moon Woo SEONG ; Sung Sup PARK
Annals of Laboratory Medicine 2019;39(6):599-601