Publications by authors named "Doo Ri Kim"

Article Synopsis
  • A resurgence of Mycoplasma pneumoniae (MP) infections, mainly causing pneumonia in kids, was noted after the COVID-19 pandemic, leading to a study on its clinical features and treatment in late 2023.
  • Out of 474 patients screened, 374 met criteria for MP pneumonia, with most presenting fever and a common radiological sign being lobar consolidation, while macrolide resistance was high at 87%.
  • The study underscores the challenge of treating MP pneumonia due to high macrolide resistance rates, as these antibiotics, along with corticosteroids, are still frequently used despite their ineffectiveness in improving radiological outcomes.
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  • The study focused on creating an AI algorithm that automatically detects and evaluates the positioning of chest percutaneous catheter drainage (PCD) on chest X-rays.
  • It involved analyzing 1,217 chest radiographs from 960 patients, categorizing them as properly or malpositioned catheters, and training the model on a subset of these images.
  • The AI model showed strong performance with an accuracy of 88%, and was able to help in the diagnosis and early detection of catheter placement issues for radiologists and clinicians.
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Objective: This study aimed to evaluate the diagnostic performance and procedural characteristics of fluoroscopy-guided percutaneous transthoracic pleural forceps biopsy (PTPFB) in patients with exudative pleural effusion.

Materials And Methods: Patients with exudative pleural effusion who underwent PTPFB between May 1, 2014, and February 28, 2023, were included in this retrospective study. The interval between percutaneous catheter drainage (PCD) and PTPFB, number of biopsies, procedural time, and procedure-related complications were evaluated.

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  • A study analyzed the impact of an antimicrobial stewardship program (ASP) on pediatric patients' bacteremia, antimicrobial use, and mortality rates between 2001 and 2019.
  • The results showed a significant increase in the proportion of ESBL-producing bacteria from 17% to 35% after the ASP was implemented, but overall antimicrobial use decreased.
  • Importantly, the 30-day mortality rate for patients with bacteremia remained stable at 10% in both pre- and post-intervention periods, indicating that the ASP was effective in reducing medication usage without increasing death rates.
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This retrospective study evaluated the safety and efficacy of fluoroscopy-guided urethral catheterization in patients who failed blind or cystoscopy-assisted urethral catheterization. We utilized our institutional database between January 2011 and March 2023, and patients with failed blind or cystoscopy-assisted urethral catheterization and subsequent fluoroscopy-guided urethral catheterization were included. A 5-Fr catheter was inserted into the urethral orifice, and the retrograde urethrography (RGU) was acquired.

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Acupuncture is increasingly being used in Asian countries and is generally considered a relatively safe procedure. However, adverse events have been reported consistently. Therefore, clinicians should be aware of the possibility of acupuncture-related complications and should actively treat serious cases.

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  • * Ruxolitinib treatment led to a significant reduction in the overexpression of inflammatory genes, particularly those related to interferon, improving the patient's autoimmune symptoms.
  • * Despite these improvements, epigenetic analysis indicated persistent accessibility of the gene regions associated with inflammation, suggesting that ruxolitinib did not fully correct the underlying epigenetic abnormalities even after treatment.
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  • This study evaluated the performance of the new SMG HHV-6 Q Real-Time PCR Kit compared to the existing RealStar HHV-6 PCR Kit, focusing on factors like sensitivity, specificity, and analytical precision.
  • The SMG assay showed a high limit of detection for both HHV-6A and HHV-6B DNA, with excellent linearity and low variability in results across different tests.
  • Clinical performance analysis indicated that the SMG kit is a reliable and sensitive method for accurately detecting and distinguishing between HHV-6A and HHV-6B DNA, outperforming RealStar in some metrics.
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Background: Pediatric urinary tract infection (UTI) caused by extended-spectrum β-lactamase (ESBL)-positive gram-negative bacilli (GNB) has limited options for oral antibiotic treatment. The purpose of this study was to investigate the susceptibility of ESBL-positive and isolates from pediatric urine samples to two oral antibiotics (fosfomycin and nitrofurantoin).

Methods: From November 2020 to April 2022, ESBL-positive and isolates from urine samples were collected at Samsung Medical Center, Seoul, Korea.

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  • A case study describes a male patient on hemodialysis who developed this complication, which was successfully treated using a microcatheter to achieve hemostasis.
  • After 10 months, the pseudoaneurysm was resolved, and the patient remained stable, highlighting endovascular treatment as a potential effective alternative to surgery for similar cases.
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Ortner's or cardiovocal syndrome is hoarseness attributable to left recurrent laryngeal nerve (RLN) palsy associated with mechanical compression of the nerve by pathologically enlarged cardiovascular structures. Ortner's syndrome is a rare condition, and to our knowledge, only a few cases have been reported in Korea. Furthermore, this condition is extremely uncommon in pediatric patients with thyrotoxicosis-related RLN paralysis.

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This manuscript describes an occurrence of false-positive GM tests in patients receiving TPN products from a manufacturer who had recently changed the supplier of the glucose component. We describe the clinical presentation of nine false-positive cases and the results of serologic and microbiological investigations of the TPN products suspected of contamination with GM. Attempts to detect GM in parenteral nutrition products were made since the detection of GM in sodium gluconate-containing solutions in 2007, but none of them identified the source of elevated GM indexes in TPN products.

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  • A new test called LAMP can quickly check newborns for a virus called CMV that can cause hearing loss and other problems.
  • LAMP gives results in just 15 minutes, while the old test takes 90 minutes.
  • This test is useful in places where there aren’t many resources, helping doctors find out if babies have CMV easily.
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Background: The aim of this study was to capture multifaceted clinical characteristics of congenital cytomegalovirus (CMV) infection from diagnosis to treatment using a multidisciplinary approach including obstetrics, pediatrics, pathology, and otorhinolaryngology-head and neck surgery.

Methods: This is a retrospective study including 30 consecutive cases of congenital CMV infection that were diagnosed at a single tertiary hospital located in Seoul, Korea from January 2009 to December 2020. Congenital CMV infection was defined as a positive result by polymerase chain reaction from urine, saliva or cerebrospinal fluid or positive CMV IgM from neonatal blood sampled within 3 weeks after birth.

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  • Children with comorbidities are at higher risk for severe COVID-19, but vaccination rates for those aged 5-11 in Korea are very low at only 1.1% as of January 2023.
  • Pediatric patients with comorbidities have higher vaccination rates compared to the general pediatric population, with 76.5% of 12-17-year-olds vaccinated, but those with immunodeficiency show the lowest rates.
  • Despite efforts to encourage vaccinations, COVID-19 vaccination rates among Korean children remain low, indicating a need for more aggressive strategies and ongoing monitoring.
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: This study aimed to evaluate the added value of cone-beam computed tomography (CBCT) for detecting hepatocellular carcinomas (HCC) and feeding arteries during transcatheter arterial chemoembolization (TACE). : Seventy-six patients underwent TACE and CBCT. We subcategorized patients into groups I (61 patients: possible superselection of tumor/feeding arteries) and II (15 patients: limited superselection of tumor/feeding arteries).

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Common femoral artery pseudoaneurysm is a potentially serious complication of peripheral angiography. There have been few prior reports of simultaneous pseudoaneurysm in both common femoral arteries after percutaneous access. Here we report the case of a 58-year-old male patient who presented with phlegmon or abscess a few days after bilateral femoral access, after which newly developed bilateral femoral pseudoaneurysm with wide neck was observed on CT angiography 2 months after infection treatment.

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  • The study aimed to compare the attenuation values between true non-contrast images (TNC) and virtual non-contrast images (VNC) obtained from two types of dual-energy CT scans, tbDECT and dsDECT.
  • Involving 62 patients, the research analyzed the attenuation of various intra-abdominal organs, revealing that over half of the comparisons showed significant differences in attenuation values between TNC and VNC.
  • The findings concluded that VNCs from both DECT methods cannot effectively substitute TNCs due to notable discrepancies in attenuation values, making them less reliable for certain medical assessments.
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Axillofemoral bypass graft stump syndrome is an uncommon complication of axillofemoral bypass graft surgery. The traditional treatment is open surgical repair; however, endovascular recanalization can be achieved. Interventional treatment by approaching the brachial artery contralateral to the lesion site has rarely been reported in acute upper extremity ischemia.

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Percutaneous transhepatic biliary drainage (PTBD) has been an effective treatment to access the biliary tree, especially in case of endoscopically inaccessible biliary tree. In general, PTBD techniques are divided into two methods: fluoroscopy-guided PTBD and ultrasound (US)-guided PTBD. This study aimed to evaluate the effectiveness of US-guided PTBD, focusing on radiation exposure according to intrahepatic duct (IHD) dilatation degree, differences between right- and left-sided approaches and differences between benign and malignant biliary stenosis/obstruction.

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X-linked lymphoproliferative disease type 1 (XLP1), an X-linked recessive genetic disorder, is associated with primary immunodeficiency. Patients with XLP1 are susceptible to Epstein-Barr virus (EBV) infection. gene is known as the causative gene.

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Purpose: The aim of this study was to evaluate the pancreatic fat fraction (PFF) using magnetic resonance imaging (MRI) in children with and without obesity and to correlate PFF with body mass index (BMI) z-score, hepatic fat fraction (HFF), and ultrasonography-derived pancreato-perihepatic fat index (PPHFI).

Methods: This prospective study included 45 children with obesity and 19 without obesity (control group). PFF and HFF were quantitatively assessed using the abdominal multi-echo Dixon method for MRI.

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Background: Korean health authority plans to vaccinate adolescents against coronavirus disease 2019 (COVID-19) starting high school seniors during the summer vacation of 2021. However, the myocarditis/pericarditis following COVID-19 vaccine has been reported recently in adolescents and young adults. This study was performed to answer the urgent questions about the basic epidemiology and clinical course of myocarditis/pericarditis in hospitalized patients prior to the introduction of COVID-19 vaccines in pediatric population.

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Endosalpingiosis is a condition that causes the non-neoplastic proliferation of ectopic tubal epithelium. Florid cystic endosalpingiosis is an atypical subtype that is very rarely reported. It presents as a mass-like feature and therefore needs to be differentiated from tumorous conditions.

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