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1.
Investigative Magnetic Resonance Imaging ; : 32-41, 2023.
Article in English | WPRIM | ID: wpr-1000620

ABSTRACT

Purpose@#This study aimed to determine whether limited T2-weighted-only lumbar spine MRI is clinically available to patients visiting pain intervention clinic for radicular pain. @*Materials and Methods@#A total of 110 patients (mean age: 63.5 ± 16.1 years) with low back pain (LBP) or sciatica who underwent limited T2-weighted-only lumbar MRI using T2-weighted sagittal and axial sequences were enrolled. All MRI scans were reviewed by two radiologists for degenerative spinal lesions that most correlated with each patient’s symptoms. All patients received spinal injections. Treatment response was recorded based on patients’ subjective evaluations and an 11-point numerical rating scale. Clinical characteristics and changes in the diagnosis of patients who had undergone previous MRI or additional MRI within six months were also analyzed. @*Results@#Using limited T2-weighted-only lumbar spine MRI, acquisition time and cost for imaging examinations were effectively reduced. Pathologic lesions corresponding to clinical symptoms were detected in most (95%) patients. Symptoms had improved in 78.1% of patients at the 6-month follow-up. Further imaging work-up was not performed for any subject during the study period because there was clear indication (no doubt) for other diagnoses on the limited T2-weighted-only lumbar spine MRI or during the clinical follow-up. @*Conclusion@#Limited T2-weighted-only lumbar spine MRI comprising T2-weighted sagittal and axial images may sufficiently detect degenerative changes of the lumbar spine in patients with LBP and sciatica. Treatment responses are satisfactory, effectively reducing scan time and costs.

2.
Korean Journal of Ophthalmology ; : 36-43, 2022.
Article in English | WPRIM | ID: wpr-918114

ABSTRACT

Purpose@#To compare serum selenium levels in Graves patients and non-Graves control participants and to evaluate associations between serum selenium levels and clinical features of Graves orbitopathy (GO). @*Methods@#We conducted a single-center, retrospective case-control study among 33 patients with Graves disease without GO (GD), 31 patients with diagnosed GO, and 27 unaffected healthy participants enrolled between 2013 and 2020 at Severance Hospital. We compared serum selenium concentrations between the GD, GO, and healthy control groups, and analyzed associations between serum selenium and GO patients’ clinical activity scores, severity (assessed through modified NOSPECS scores), and other clinical features using multivariate linear regression analysis. @*Results@#Mean serum selenium levels were 109.30 ± 16.39, 111.39 ± 14.04, and 126.09 ± 21.09 ng/mL in GO patients, GD patients, and healthy control participants, respectively. Mean serum selenium levels in Graves patients with and without orbitopathy were significantly lower than those in the healthy control group (p < 0.05), and mean selenium levels were slightly lower in GO than those in GD patients (p = 0.594). Serum selenium levels were significantly lower in GO patients with eyelid retraction than in patients without retraction (p = 0.038). However, serum selenium levels were not associated with clinical activity scores and modified NOSPECS scores (p = 0.241 and 0.801, respectively). @*Conclusions@#Serum selenium levels were significantly lower in Graves patients with or without GO, compared to non-Graves control participants. Selenium levels were not associated with clinical activity scores or NOSPECS scores, though we observed an association with eyelid retraction.

3.
Cancer Research and Treatment ; : 269-276, 2022.
Article in English | WPRIM | ID: wpr-913833

ABSTRACT

Purpose@#Acute promyelocytic leukemia (APL) is a rare disease in children and there are some different characteristics between children and adult. We aimed to evaluate incidence, clinical characteristics and treatment outcomes of pediatric APL in Korea. @*Materials and Methods@#Seventy-nine pediatric APL patients diagnosed from January 2009 to December 2016 in 16 tertiary medical centers in Korea were reviewed retrospectively. @*Results@#Of 801 acute myeloid leukemia children, 79 (9.9%) were diagnosed with APL. The median age at diagnosis was 10.6 years (range, 1.3 to 18.0). Male and female ratio was 1:0.93. Thirty patients (38.0%) had white blood cell (WBC) count greater than 10×109/L at diagnosis. All patients received induction therapy consisting of all-trans retinoic acid and chemotherapy. Five patients (6.6%) died during induction chemotherapy and 66 patients (86.8%) achieved complete remission (CR) after induction chemotherapy. The causes of death were three intracranial hemorrhage, one cerebral infarction, and one sepsis. Five patients (7.1%) suffered a relapse during or after maintenance chemotherapy. The estimated 4-year event-free survival and overall survival (OS) rates were 82.1%±4.4%, 89.7%±5.1%, respectively. The 4-year OS was significantly higher in patients with initial WBC < 10×109/L than in those with initial WBC ≥ 10×109/L (p=0.020). @*Conclusion@#This study showed that the CR rates and survival outcomes in Korean pediatric APL patients were relatively good. The initial WBC count was the most important prognostic factor and most causes of death were related to serious bleeding in the early stage of treatment.

4.
Clinical Pediatric Hematology-Oncology ; : 30-34, 2022.
Article in English | WPRIM | ID: wpr-924814

ABSTRACT

Extramedullary relapse in acute lymphoblastic leukemia (ALL) usually occurs in the central nervous system and testes those are known as sanctuary sites. Only a few cases of isolated breast relapse after allogeneic hematopoietic stem cell transplantation (HSCT) have been reported in pediatric ALL, with little known about the optimal treatment and prognosis of such cases. Herein, we report a pediatric case of isolated breast relapse with early T-cell precursor ALL after HSCT. We also describe a literature review of six pediatric cases, including our case.

5.
Journal of Genetic Medicine ; : 117-120, 2021.
Article in English | WPRIM | ID: wpr-915026

ABSTRACT

We experienced a case of Xq deletion -- 46,X,del(X)(q22.3) -- detected by abnormal noninvasive prenatal screening, subsequently diagnosed by amniocentesis. Genetic counseling was a challenge because there are few reports of prenatal diagnosis of Xq deletion. In each female cell, one X chromosome is inactivated at random early in development, and there may be a preferential inactivation of the abnormal X chromosome. But some proportions of genes escape inactivation. The most common manifestation in women with Xq deletion is primary or secondary ovarian failure. Critical regions for ovarian function may be located at the long arm of the X chromosome. But, the onset and the severity of ovarian failure may vary with diverse, intricate factors. We anticipate that noninvasive prenatal screening can identify the broader range of chromosomal or genetic abnormalities with the advances in technology and analytic methods. We report our case with a brief review of the literature.

6.
Clinical Pediatric Hematology-Oncology ; : 93-97, 2021.
Article in English | WPRIM | ID: wpr-914058

ABSTRACT

Atypical chronic myeloid leukemia (aCML), BCR-ABL1-negative is a rare myeloid neoplasm, especially in pediatric patients. The mutations identified in aCML have overlapped with those of other myeloid neoplasms. In recent studies, ruxolitinib, a Janus kinase (JAK) inhibitor, was found efficient in some patients of aCML with CSF3R mutation. Here, we report a pediatric case of aCML with CSF3Rmutation who did not respond to ruxoritinib, but was successfully rescued with hematopoietic stem cell transplantation (SCT). A stuporous 13-year-old boy was transferred with leukocytosis.Computed tomography showed an acute lobar intracranial hemorrhage in the left frontal lobe. The bone marrow aspirate demonstrated significant granulocytic proliferations with predominant dysplasia. Hydroxyurea and imatinib were initially administered to reduce leukocytosis. After BCR-ABL1 was found to be negative, imatinib was discontinued. After the identification of CSF3R mutation by customized targeted DNA sequencing (NGeneBio, Seoul, South Korea), ruxolitinib was added. He seemed to have hematologic and clinical responses on 2 months of ruxolitinib treatment, but the blast counts in the bone marrow increased. He underwent a full-matched unrelated peripheral blood SCT successfully 3 months after his diagnosis and has currently been disease-free 8 months since the transplantation. In conclusion, ruxolitinib for aCML with CSF3R mutation might not always induce a significant response but could be used as bridge to hematopoietic SCT.

7.
Brain & Neurorehabilitation ; : e22-2021.
Article in English | WPRIM | ID: wpr-913759

ABSTRACT

Cortical lesions of the supplementary motor area (SMA) are important in balance control and postural recovery in stroke patients, while the role of subcortical lesions of the SMA has not been studied. This study aimed to investigate the subcortical projections of the SMA and its relationship with ataxia in supratentorial stroke patients. Thirty-three patients with hemiparesis were divided into 3 groups (severe ataxia, n = 9; mild to moderate ataxia, n = 13; no ataxia, n = 11). Ataxia severity was assessed using the Scale for Ataxia Rating Assessment. Diffusion tensor imaging analysis used the fractional anisotropy (FA) values and tract volume as parameters of white matter tract degeneration. The FA values of regions related to ataxia were analyzed, that is the SMA, posterior limb of the internal capsule, basal ganglia, superior cerebellar peduncle, middle cerebellar peduncle, inferior cerebellar peduncle, and cerebellum. Tract volumes of the corticostriatal tract and cortico-ponto-cerebellar (CPC) tract originating from the SMA were evaluated. There were significant differences among the 3 groups in FA values of the subcortical regions of the CPC tract. Furthermore, the volume of the CPC tract originating from the SMA showed significant negative correlation with ataxia severity. There was no correlation between ataxia and corticostriatal tract volume. Therefore, we found that subcortical lesions of the CPC tract originating from the SMA could contribute to ataxia severity in stroke patients with ataxic hemiparesis.

8.
Korean Journal of Ophthalmology ; : 37-43, 2021.
Article in English | WPRIM | ID: wpr-875238

ABSTRACT

Purpose@#We sought to evaluate the safety and effectiveness of patient-specific ocular prostheses produced by three-dimensional (3D) printing and the sublimation technique. A comparison with prostheses produced using manual manufacturing methods was then performed. @*Methods@#To confirm the biological and physiochemical safety, cytotoxicity, systemic acute toxicity, intradermal reaction, and skin sensitization tests were conducted according to the International Organization for Standardization guidelines. The compressive strength of the prostheses was also tested. Further, a case series of three patients who wore the 3D printed prostheses for more than eight hours daily for 4 weeks was executed. Self-assessments by these individuals using a questionnaire and safety evaluations focusing on the occurrence of conjunctival inflammation or allergic reactions according to the Cornea and Contact Lens Research Unit criteria by slit-lamp examination and similarity assessment were completed. @*Results@#The 3D printed ocular prostheses met the necessary qualifications per the biological and physiochemical safety tests, showing the absence of cytotoxicity, acute systemic toxicity, intradermal reactivity, and skin-sensitizing potency. Also, there was no difference in strength test results between previous ocular prostheses and the 3D printed ones. Self-assessment by the patients yielded satisfactory results, with no significant difference in the level of satisfaction reported for the 3D printed and previous handmade ocular prostheses. The 3D printed prosthesis did not trigger any side effects in the conjunctival sac and showed similar objective findings with respect to the color of the iris, sclera, and vessel patterns. @*Conclusions@#Our study confirms the biologic and physiochemical safety of 3D-printed ocular prostheses created using computer-aided design technology and a sublimation technique. The patients’ questionnaires and the judgment of the ophthalmologists/ocularists showed that the 3D printed ocular prosthesis was acceptable in function and appearance through a case series report.

9.
Journal of Korean Academy of Community Health Nursing ; : 156-165, 2020.
Article | WPRIM | ID: wpr-835814

ABSTRACT

Purpose@#This study was performed to identify the factors influencing the fear of dementia in middle-aged and older adults. @*Methods@#Data on the characteristics, dementia knowledge, dementia attitude, dementia health beliefs, and fear of dementia of 156 participants were collected from January 20 to March 22, 2018, using a structured questionnaire. The data were analyzed with the SPSS/WIN 21.0 program for descriptive statistics, using an independent t-test, one-way analysis of variance, Pearson’s correlation coefficient, and stepwise multiple regression. @*Results@#Significant factors associated with fear of dementia among middle-aged and older adults were subjective life satisfaction (F=3.72, p=.006) and regular exercise (t=6.05, p=.015). Fear of dementia has positive correlations with dementia attitude, perceived susceptibility, perceived severity, and perceived barrier. The determining factors affecting fear of dementia in middle-aged and older adults were perceived severity (β=.46, p<.001), followed by a perceived barrier (β=.20, p=.004) and perceived susceptibility (β=.17, p=.023), and the explanation power was about 47.8%. @*Conclusion@#The results suggest that perceived severity, perceived barrier, and perceived susceptibility be considered in developing the nursing interventions to increase perceived severity, perceived susceptibility, and to decrease perceived barrier to dementia by evaluating dementia health beliefs to manage the fear of dementia among middle-aged and older adults.

10.
Yonsei Medical Journal ; : 1064-1067, 2020.
Article in English | WPRIM | ID: wpr-833330

ABSTRACT

Hemoglobin M (HbM) is a group of abnormal hemoglobin variants that form methemoglobin, which leads to cyanosis and hemolytic anemia. HbM-Milwaukee-2 is a rare variant caused by the point mutation CAC>TAC on codon 93 of the hemoglobin subunit beta (HBB) gene, resulting in the replacement of histidine by tyrosine. We here report the first Korean family with HbM-Milwaukee-2, whose diagnosis was confirmed by gene sequencing. A high index of suspicion for this rare Hb variant is necessary in a patient presenting with cyanosis since childhood, along with methemoglobinemia and a family history of cyanosis.

11.
Journal of the Korean Ophthalmological Society ; : 1079-1084, 2020.
Article | WPRIM | ID: wpr-833304

ABSTRACT

Purpose@#A case of a huge ethmoid sinus and orbital cyst causing ocular deviation initially diagnosed as a mucocele-like cyst and after orbitotomy eventually discovered to be a naso-orbital encephalocele is described.Case summary: A 5-year-old male with no previous medical history presented with a palpable mass in the medial canthus area with left exodeviation of the left eye. His best-corrected visual acuity was 20/25 in the right eye and 6/12 in the left eye with limitation of motion of -4 at adduction in the left eye. Brain magnetic resonance imaging scans revealed a 3.0 × 2.5 × 2.5 cm-sized cystic mass suspected as a mucocele or nasolacrimal duct cyst invading the orbital space. The cyst was removed using a Lynch and caruncle incision, and intracystic fluid was aspirated. During the excision, a small defect of the skull base was detected with cerebrospinal fluid (CSF) leakage and leaking point of dura was sealed. His pathologic result was disorganized glial and fibrous tissue, consistent with encephalocele. Three days later, CSF leakage recurred. On postoperative day 8, duroplasty was performed. A one month later, his best-corrected visual acuity was 6/12 in the left eye with orthotropic eye position. Limitation of motion was improved to -1 at adduction with enophthalmos. No other complications were detected. @*Conclusions@#Congenital naso-orbital encephalocele invading the orbit is rare. However, a cystic mass in the sinuses involving the orbit should be considered, rendering thorough physical and radiologic examinations including computed tomography scans necessary to look for bone defects.

12.
Journal of Korean Medical Science ; : e46-2020.
Article in English | WPRIM | ID: wpr-899775

ABSTRACT

BACKGROUND@#This study aimed to assess the outcome of stem cell transplantation (SCT), including overall survival (OS), failure-free survival (FFS) and graft-versus-host disease (GvHD)-free/failure-free survival (GFFS), and to analyze prognostic factors in children with aplastic anemia (AA).@*METHODS@#From 1991 to 2018, 43 allogeneic SCT recipients were enrolled in the study to investigate the demographic characteristics, survival outcomes and prognostic factors.@*RESULTS@#With the median follow-up of 7.1 years, the estimated 10-year OS, FFS, GFFS were 86.0%, 60.5%, and 51.2%, respectively. Matched related donors (MRD, n = 28) showed better 10-year OS than unrelated donors (n = 15) (96.4% vs. 66.7%; P = 0.006). Engraftment failure was seen in 13 patients (30.2%). Donor-type aplasia was seen in 13.8% (4/29) after fludarabine (Flu)-based conditioning (Flu-group), while in 42.6% (6/14) after cyclophosphamide (Cy)-based regimen (Cy-group) (P = 0.035). Six patients died. The 10-year OS in Cy-group was 92.9% (n = 14, all MRD), while that of Flu-group was 82.1% (n = 29; P = 0.367). But Flu-group tended to have better FFS and GFFS than Cy-group, although Flu-group had less MRDs (41.4% vs. 100%; P = 0.019), and higher proportion of previous immunosuppressive treatment (IST; 62% vs. 21.4%, P = 0.012). In MRD transplants, OS was similar between Flu-group (100%, n = 14) and Cy-group (92.9%, n = 14), while FFS (100.0% vs. 42.9%; P = 0.001) and GFFS (85.7% vs. 35.7%; P = 0.006) were significantly better in Flu-group. Stem cell sources, irradiation in the conditioning, and method of GvHD prophylaxis did not significantly influence the outcome.@*CONCLUSION@#This study reviewed SCT outcomes for pediatric AA with changes of transplant strategies over the last 25 years. The FFS and GFFS were higher in Flu-group than in Cy-group, especially in matched related transplantation. Graft failure including donor-type aplasia remains troublesome even with Flu-based conditioning. Further refinement of transplant strategies to ensure better quality-of-life should be pursued.

13.
Journal of Korean Medical Science ; : 46-2020.
Article in English | WPRIM | ID: wpr-810958

ABSTRACT

BACKGROUND: This study aimed to assess the outcome of stem cell transplantation (SCT), including overall survival (OS), failure-free survival (FFS) and graft-versus-host disease (GvHD)-free/failure-free survival (GFFS), and to analyze prognostic factors in children with aplastic anemia (AA).METHODS: From 1991 to 2018, 43 allogeneic SCT recipients were enrolled in the study to investigate the demographic characteristics, survival outcomes and prognostic factors.RESULTS: With the median follow-up of 7.1 years, the estimated 10-year OS, FFS, GFFS were 86.0%, 60.5%, and 51.2%, respectively. Matched related donors (MRD, n = 28) showed better 10-year OS than unrelated donors (n = 15) (96.4% vs. 66.7%; P = 0.006). Engraftment failure was seen in 13 patients (30.2%). Donor-type aplasia was seen in 13.8% (4/29) after fludarabine (Flu)-based conditioning (Flu-group), while in 42.6% (6/14) after cyclophosphamide (Cy)-based regimen (Cy-group) (P = 0.035). Six patients died. The 10-year OS in Cy-group was 92.9% (n = 14, all MRD), while that of Flu-group was 82.1% (n = 29; P = 0.367). But Flu-group tended to have better FFS and GFFS than Cy-group, although Flu-group had less MRDs (41.4% vs. 100%; P = 0.019), and higher proportion of previous immunosuppressive treatment (IST; 62% vs. 21.4%, P = 0.012). In MRD transplants, OS was similar between Flu-group (100%, n = 14) and Cy-group (92.9%, n = 14), while FFS (100.0% vs. 42.9%; P = 0.001) and GFFS (85.7% vs. 35.7%; P = 0.006) were significantly better in Flu-group. Stem cell sources, irradiation in the conditioning, and method of GvHD prophylaxis did not significantly influence the outcome.CONCLUSION: This study reviewed SCT outcomes for pediatric AA with changes of transplant strategies over the last 25 years. The FFS and GFFS were higher in Flu-group than in Cy-group, especially in matched related transplantation. Graft failure including donor-type aplasia remains troublesome even with Flu-based conditioning. Further refinement of transplant strategies to ensure better quality-of-life should be pursued.


Subject(s)
Child , Humans , Anemia, Aplastic , Cyclophosphamide , Follow-Up Studies , Graft vs Host Disease , Methods , Stem Cell Transplantation , Stem Cells , Tissue Donors , Transplants , Unrelated Donors
14.
Journal of Korean Medical Science ; : e46-2020.
Article in English | WPRIM | ID: wpr-892071

ABSTRACT

BACKGROUND@#This study aimed to assess the outcome of stem cell transplantation (SCT), including overall survival (OS), failure-free survival (FFS) and graft-versus-host disease (GvHD)-free/failure-free survival (GFFS), and to analyze prognostic factors in children with aplastic anemia (AA).@*METHODS@#From 1991 to 2018, 43 allogeneic SCT recipients were enrolled in the study to investigate the demographic characteristics, survival outcomes and prognostic factors.@*RESULTS@#With the median follow-up of 7.1 years, the estimated 10-year OS, FFS, GFFS were 86.0%, 60.5%, and 51.2%, respectively. Matched related donors (MRD, n = 28) showed better 10-year OS than unrelated donors (n = 15) (96.4% vs. 66.7%; P = 0.006). Engraftment failure was seen in 13 patients (30.2%). Donor-type aplasia was seen in 13.8% (4/29) after fludarabine (Flu)-based conditioning (Flu-group), while in 42.6% (6/14) after cyclophosphamide (Cy)-based regimen (Cy-group) (P = 0.035). Six patients died. The 10-year OS in Cy-group was 92.9% (n = 14, all MRD), while that of Flu-group was 82.1% (n = 29; P = 0.367). But Flu-group tended to have better FFS and GFFS than Cy-group, although Flu-group had less MRDs (41.4% vs. 100%; P = 0.019), and higher proportion of previous immunosuppressive treatment (IST; 62% vs. 21.4%, P = 0.012). In MRD transplants, OS was similar between Flu-group (100%, n = 14) and Cy-group (92.9%, n = 14), while FFS (100.0% vs. 42.9%; P = 0.001) and GFFS (85.7% vs. 35.7%; P = 0.006) were significantly better in Flu-group. Stem cell sources, irradiation in the conditioning, and method of GvHD prophylaxis did not significantly influence the outcome.@*CONCLUSION@#This study reviewed SCT outcomes for pediatric AA with changes of transplant strategies over the last 25 years. The FFS and GFFS were higher in Flu-group than in Cy-group, especially in matched related transplantation. Graft failure including donor-type aplasia remains troublesome even with Flu-based conditioning. Further refinement of transplant strategies to ensure better quality-of-life should be pursued.

15.
Annals of Rehabilitation Medicine ; : 180-183, 2018.
Article in English | WPRIM | ID: wpr-739809

ABSTRACT

Palatal myoclonus (PM) is a rare disease that may induce dysphagia. Since dysphagia related to PM is unique and is characterized by myoclonic movements of the involved muscles, specific treatments are needed for rehabilitation. However, no study has investigated the treatment effectiveness for this condition. Therefore, the aim of this case report was to describe the benefit of combining behavioral treatment with valproic acid administration in patients with dysphagia triggered by PM. The two cases were treated with combined treatment. The outcomes evaluated by videofluoroscopic swallowing studies before and after the treatment showed significant decreases in myoclonic movements and improved swallowing function. We conclude that the combined treatment was effective against dysphagia related to PM.


Subject(s)
Humans , Deglutition , Deglutition Disorders , Muscles , Myoclonus , Rare Diseases , Rehabilitation , Stroke , Treatment Outcome , Valproic Acid
16.
Korean Journal of Radiology ; : 1099-1109, 2018.
Article in English | WPRIM | ID: wpr-718939

ABSTRACT

OBJECTIVE: In a proof of concept study, we compared no-touch radiofrequency ablation (NtRFA) in bipolar mode with conventional direct tumor puncture (DTP) in terms of local tumor control (LTC), peritoneal seeding, and tumorigenic factors, in the rabbit VX2 subcapsular hepatic tumor model. MATERIALS AND METHODS: Sixty-two rabbits with VX2 subcapsular hepatic tumors were divided into three groups according to the procedure: DTP-RFA (n = 25); NtRFA (n = 25); and control (n = 12). Each of the three groups was subdivided into two sets for pathologic analysis (n = 24) or computed tomography (CT) follow-up for 6 weeks after RFA (n = 38). Ultrasonography-guided DTP-RFA and NtRFA were performed nine days after tumor implantation. LTC was defined by either achievement of complete tumor necrosis on histopathology or absence of local tumor progression on follow-up CT and autopsy. Development of peritoneal seeding was also compared among the groups. Serum hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF) and interleukin-6 (IL-6) were measured via ELISA (Elabscience Biotechnology Co.) after RFA for tumorigenic factor evaluation. RESULTS: Regarding LTC, there was a trend in NtRFA (80%, 20/25) toward better ablation than in DTP-RFA (56%, 14/25) (p = 0.069). Complete tumor necrosis was achieved in 54.5% of DTP-RFA (6/11) and 90.9% of NtRFA (10/11). Peritoneal seeding was significantly more common in DTP-RFA (71.4%, 10/14) than in NtRFA (21.4%, 3/14) (p = 0.021) or control (0%). Elevations of HGF, VEGF or IL-6 were not detected in any group. CONCLUSION: No-touch radiofrequency ablation led to lower rates of peritoneal seeding and showed a tendency toward better LTC than DTP-RFA.


Subject(s)
Rabbits , Autopsy , Biotechnology , Catheter Ablation , Enzyme-Linked Immunosorbent Assay , Follow-Up Studies , Hepatocyte Growth Factor , Interleukin-6 , Necrosis , Punctures , Vascular Endothelial Growth Factor A
17.
Korean Journal of Radiology ; : 389-396, 2018.
Article in English | WPRIM | ID: wpr-715453

ABSTRACT

OBJECTIVE: To compare apparent diffusion coefficient (ADC) of the upper abdominal organs acquired with multiple b-value combinations and to investigate usefulness of normalization. MATERIALS AND METHODS: We retrospectively analyzed data, including 3T diffusion-weighted images, of 100 patients (56 men, 44 women; mean age, 63.9) that underwent liver magnetic resonance imaging. An ADC map was derived with the following six b-value combinations: b1 = 0, 50, 400, 800; b2 = 0, 800; b3 = 0, 50, 800; b4 = 0, 400, 800; b5 = 50, 800; and b6 = 50, 400, 800 s/mm2. ADC values of the right liver lobe, left liver lobe, spleen, pancreas, right kidney, and left kidney were measured. ADC values of the spleen were used for normalization. Intraclass correlation coefficients (ICCs), comparison of dependent ICCs, and repeated-measures analysis of variance were used for statistical analysis. RESULTS: Intraclass correlation coefficients of the original ADC revealed moderate to substantial agreement (0.5145–0.6509), while normalized ADCs revealed almost perfect agreement (0.8014–0.8569). ICC of normalized ADC for all anatomical regions revealed significantly less variability than that of the original ADC (p < 0.05). Coefficient of variance for normalized ADC was significantly lower than that for the original ADC (3.0.3.8% vs. 4.8.8.8%, p < 0.05). CONCLUSION: Normalization of the ADC values of the upper abdominal organs using the spleen as the reference organ significantly decreased variability in ADC measurement acquired with multiple b-value combinations.


Subject(s)
Female , Humans , Male , Diffusion , Kidney , Liver , Magnetic Resonance Imaging , Pancreas , Retrospective Studies , Spleen
18.
Annals of Rehabilitation Medicine ; : 753-760, 2017.
Article in English | WPRIM | ID: wpr-191582

ABSTRACT

OBJECTIVE: To determine the incidence and risk factors for medical complications in Korean patients suffering from stroke and the impact of such complications on post-stroke functional outcomes. METHODS: We assessed patients enrolled in a prospective cohort study. All recruited patients had suffered a first acute stroke episode and been admitted to nine university hospitals in Korea between August 2012 and June 2015. We analyzed patient and stroke characteristics, comorbidities, prevalence of post-stroke medical complications, and functional outcomes at time of discharge and 3, 6, and 12 months after stroke onset. RESULTS: Of 10,625 patients with acute stroke, 2,210 (20.8%) presented with medical complications including bladder dysfunction, bowel dysfunction, sleep disturbance, pneumonia, and urinary tract infection. In particular, complications occurred more frequently in older patients and in patients with hemorrhagic strokes, more co-morbidities, severe initial motor impairment, or poor swallowing function. In-hospital medical complications were significantly correlated with poor functional outcomes at all time points. CONCLUSION: Post-stroke medical complications affect functional recovery. The majority of complications are preventable and treatable; therefore, the functional outcomes of patients with stroke can be improved by providing timely, appropriate care. Special care should be provided to elderly patients with comorbid risk factors.


Subject(s)
Aged , Humans , Cohort Studies , Comorbidity , Deglutition , Hospitals, University , Incidence , Korea , Pneumonia , Prevalence , Prospective Studies , Rehabilitation , Risk Factors , Stroke , Urinary Bladder , Urinary Tract Infections
19.
Annals of Rehabilitation Medicine ; : 761-768, 2017.
Article in English | WPRIM | ID: wpr-191581

ABSTRACT

OBJECTIVE: To evaluate the reliability of the practical life space in post-stroke patients using the Korean version of the Life-Space Assessment (K-LSA) questionnaire and to assess the relationships between the K-LSA and physical function, daily activity, quality of life, and post-stroke depression. METHODS: The LSA questionnaire was translated into Korean, and the translated version was authorized by the author of the LSA questionnaire. In a cross-sectional study, the performance of the K-LSA was evaluated in 34 stroke patients (20 males and 14 females; mean age 65.11±2.39 years) who were receiving physical and occupational therapy at the outpatient clinic in the rehabilitation medicine department of a university medical center at the time of evaluation. Performances were assessed twice by one examiner at a 2-week interval to test the reliability. The patients were evaluated using the Functional Ambulation Category (FAC) scale, Functional Independence Measure (FIM) scale, and mobility subscale of the FIM to assess their relationships with the K-LSA. They were also evaluated using the EuroQol 5 Dimensions questionnaire (EQ-5D) and Geriatric Depression Scale (GDS) to determine the relationship with quality of life and post-stroke depression. RESULTS: Test-retest reliability at the first (62.20±32.14) and second (63.15±32.22) assessment was 0.993 (p<0.01). The K-LSA showed significant correlations with the FAC (r=0.848, p<0.01), FIM (r=0.765, p<0.01), mobility category of the FIM (r=0.764, p<0.01), GDS (r=-0.657, p<0.01), and EQ-5D (r=0.506, p<0.01). CONCLUSION: This study suggests that the practical life space of post-stroke patients, assessed by the K-LSA, has a significant correlation with patients' functional mobility, independence in daily activity, quality of life, and depression.


Subject(s)
Female , Humans , Male , Academic Medical Centers , Ambulatory Care Facilities , Cross-Sectional Studies , Depression , Occupational Therapy , Quality of Life , Rehabilitation , Reproducibility of Results , Stroke , Walking
20.
Brain & Neurorehabilitation ; : e10-2017.
Article in English | WPRIM | ID: wpr-185290

ABSTRACT

OBJECTIVE: To develop the Korean version of the Kessler Foundation Neglect Assessment Process (KF-NAP), which enables a more functional assessment of unilateral spatial neglect, by first translating it into Korean and then statistically standardizing it. METHODS: Two rehabilitation specialists translated the KF-NAP into Korean. The entire process of administering the Korean KF-NAP to 30 patients with brain disease was video-recorded. Five occupational therapists from 4 university hospitals nationwide evaluated the 30 video-recorded examination cases. We analyzed inter- and intra-reliabilities of the Korean KF-NAP using the intraclass coefficient and Pearson correlation coefficient. Internal consistency reliability of the assessment categories was also examined using Cronbach's alpha coefficient. RESULTS: For the construct validation study, the Korean KF-NAP was strongly correlated with the Albert's test and letter cancellation test (r ≥ 0.8; p < 0.05). The intraclass correlation coefficients for the first and second assessments of the Korean KF-NAP were 0.973 and 0.982, respectively, showing high reliability (p < 0.05). The intra-rater reliabilities exceeded 0.9 (p < 0.05), and Cronbach's alpha coefficient exceeded 0.8, showing internal consistency reliability. CONCLUSION: The Korean KF-NAP is a reliable and valid instrument for assessing hemispatial neglect symptoms in patients with brain diseases.


Subject(s)
Humans , Brain Diseases , Hospitals, University , Perceptual Disorders , Rehabilitation , Reproducibility of Results , Specialization , Translating , Translations
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