1.Incidence, Management, and Prognosis of Graft Failure and Autologous Reconstitution after Allogeneic Hematopoietic Stem Cell Transplantation
Jun-Hong PARK ; Je-Hwan LEE ; Jung-Hee LEE ; Han-Seung PARK ; Eun-Ji CHOI ; Young-Ah KANG ; Hyeran KANG ; Ji Min WOO ; Young-Shin LEE ; Mijin JEON ; Kyoo-Hyung LEE
Journal of Korean Medical Science 2021;36(23):e151-
Background:
This study presents outcomes of management in graft failure (GF) after allogeneic hematopoietic stem cell transplantation (HCT) and provides prognostic information including rare cases of autologous reconstitution (AR).
Methods:
We analyzed risk factors and outcomes of primary and secondary GF, and occurrence of AR in 1,630 HCT recipients transplanted over period of 18 years (January 2000– September 2017) at our center.
Results:
Primary and secondary GF occurred in 13 (0.80%), and 69 patients (10-year cumulative incidence, 4.5%) respectively. No peri-transplant variables predicted primary GF, whereas reduced intensity conditioning (RIC) regimen (relative risk [RR], 0.97–28.0, P < 0.001) and lower CD34 + cell dose (RR, 2.44–2.84, P = 0.002) were associated with higher risk of secondary GF in multivariate analysis. Primary GF demonstrated 100% mortality, in the secondary GF group, the 5-year Kaplan-Meier survival rate was 28.8%, relapse ensued in 18.8%, and AR was observed in 11.6% (n = 8). In survival analysis, diagnosis of aplastic anemia (AA), chronic myeloid leukemia and use of RIC had a positive impact. There were 8 patients who experienced AR, which was rarely reported after transplantation for acute leukemia. Patient shared common characteristics such as young age (median 25 years), use of RIC regimen, absence of profound neutropenia, and had advantageous survival rate of 100% during follow period without relapse.
Conclusion
Primary GF exhibited high mortality rate. Secondary GF had 4.5% 10-year cumulative incidence, median onset of 3 months after HCT, and showed 5-year Kaplan-Meier survival of 28.8%. Diagnosis of severe AA and use of RIC was both associated with higher incidence and better survival rate in secondary GF group. AR occurred in 11.6% in secondary GF, exhibited excellent prognosis.
2.Incidence, Management, and Prognosis of Graft Failure and Autologous Reconstitution after Allogeneic Hematopoietic Stem Cell Transplantation
Jun-Hong PARK ; Je-Hwan LEE ; Jung-Hee LEE ; Han-Seung PARK ; Eun-Ji CHOI ; Young-Ah KANG ; Hyeran KANG ; Ji Min WOO ; Young-Shin LEE ; Mijin JEON ; Kyoo-Hyung LEE
Journal of Korean Medical Science 2021;36(23):e151-
Background:
This study presents outcomes of management in graft failure (GF) after allogeneic hematopoietic stem cell transplantation (HCT) and provides prognostic information including rare cases of autologous reconstitution (AR).
Methods:
We analyzed risk factors and outcomes of primary and secondary GF, and occurrence of AR in 1,630 HCT recipients transplanted over period of 18 years (January 2000– September 2017) at our center.
Results:
Primary and secondary GF occurred in 13 (0.80%), and 69 patients (10-year cumulative incidence, 4.5%) respectively. No peri-transplant variables predicted primary GF, whereas reduced intensity conditioning (RIC) regimen (relative risk [RR], 0.97–28.0, P < 0.001) and lower CD34 + cell dose (RR, 2.44–2.84, P = 0.002) were associated with higher risk of secondary GF in multivariate analysis. Primary GF demonstrated 100% mortality, in the secondary GF group, the 5-year Kaplan-Meier survival rate was 28.8%, relapse ensued in 18.8%, and AR was observed in 11.6% (n = 8). In survival analysis, diagnosis of aplastic anemia (AA), chronic myeloid leukemia and use of RIC had a positive impact. There were 8 patients who experienced AR, which was rarely reported after transplantation for acute leukemia. Patient shared common characteristics such as young age (median 25 years), use of RIC regimen, absence of profound neutropenia, and had advantageous survival rate of 100% during follow period without relapse.
Conclusion
Primary GF exhibited high mortality rate. Secondary GF had 4.5% 10-year cumulative incidence, median onset of 3 months after HCT, and showed 5-year Kaplan-Meier survival of 28.8%. Diagnosis of severe AA and use of RIC was both associated with higher incidence and better survival rate in secondary GF group. AR occurred in 11.6% in secondary GF, exhibited excellent prognosis.
3.Comparison of Postextubation Outcomes Associated with High-Flow Nasal Cannula vs. Conventional Oxygen Therapy in Patients at High Risk of Reintubation: a Randomized Clinical Trial
Jun Yeun CHO ; Hee-Sung KIM ; Hyeran KANG ; Sun-Hyung KIM ; Kang Hyeon CHOE ; Ki Man LEE ; Yoon Mi SHIN
Journal of Korean Medical Science 2020;35(25):e194-
Background:
Liberation and extubation are important for patients supported by mechanical ventilation. Extubation success is related to the duration of an intensive care unit (ICU) stay and mortality rate. High-flow nasal cannula (HFNC) oxygen therapy has physiological and clinical benefits in respiratory care. The present study compared clinical outcomes associated with HFNC and conventional oxygen therapy (COT) among patients at high risk for reintubation.
Methods:
A single-center randomized clinical trial was conducted between March 2018 and June 2019. Sixty adults admitted to the ICU and who were at high-risk of reintubation and met the inclusion criteria were enrolled in this study. “High risk” for reintubation was defined as having at least one of the following risk factors: age > 65 years, Acute Physiology and Chronic Health Evaluation II score > 12 points on extubation day, obesity, poor expectoration, airway patency problems, difficult or prolonged weaning, and more than one comorbidity. The primary outcome of interest was reintubation within 72 hours. Secondary outcomes included duration of ICU and hospital stay, mortality rate, and time to reintubation.
Results:
Of 60 patients, 31 received HFNC and 29 received COT (mean age, 78 ± 7.8 vs. 76 ± 6.5 years, respectively). Reintubation rate within 72 hours did not differ between the groups (3 patients [9.7%] vs. 1 patient [3.4%], respectively). Reintubation time was shorter among patients who received COT than among patients who received HFNC (0.5 hour vs. 25 hours), but this difference was not statistically significant. Duration of ICU did not differ between the groups (14.7 ± 9.6 days vs. 13.8 ± 15.7 days, for HFNC and COT, respectively).
Conclusion
Among patients at high risk for reintubation, compared with COT, HFNC did not reduce the risk of reintubation within 72 hours.
4.Indolent Metastatic Squamous Cell Carcinoma of Unknown Primary in the Intrathoracic Lymph Node: A Case Report and Review of the Literatures.
Min Jin KIM ; Sang Hyok LIM ; Su Jung HAN ; Kang Hyug CHOI ; Sun Hyo LEE ; Min Woo PARK ; HyeRan KANG ; Ju Ock NA
Tuberculosis and Respiratory Diseases 2015;78(1):23-26
Metastatic squamous cell carcinoma from a cancer of unknown primary (CUP) affecting the intrathoracic lymph node is very rare. We reported a case of metastatic squamous cell carcinoma in the hilar and interlobar lymph node from a patient with CUP and reviewed the associated literature. Abnormal mass in the right hilar area was incidentally detected. A chest computed tomography scan showed a 2.5-cm diameter mass in the right hilum that had changed little in size for 3 years. The patient underwent a right pneumonectomy and mediastinal lymph node dissection. A metastatic squamous cell carcinoma in the hilar and interlobar lymph nodes without a primary lung or other lesion was diagnosed. The patient received adjuvant chemotherapy for a diagnosis of T0N1M0 lung cancer.
Carcinoma, Squamous Cell*
;
Chemotherapy, Adjuvant
;
Diagnosis
;
Humans
;
Lung
;
Lung Neoplasms
;
Lymph Node Excision
;
Lymph Nodes*
;
Pneumonectomy
;
Thorax
6.Predictive Factors for Decline in Activities of Daily Living in Alzheimer's Disease Dementia with More than 2 Follow-up.
Sung Hee KIM ; Hyeran YANG ; Ye Ji CHOI ; Hee Jin KANG ; Kyoung Gyu CHOI ; Jee Hyang JEONG
Dementia and Neurocognitive Disorders 2013;12(4):100-106
BACKGROUND: Impairment in activities of daily living (ADL) is a major problem in Alzheimer's disease (AD), and is related to increased caregiver burden.The present study evaluated whether there are any components of initial dementia evaluation that could predict ADL decline in years follow-up. METHODS: The 32 subjects underwent more than two consecutive neuropsychological evaluation and maintained anti-dementia medication from the Ewha Dementia Cohort. The first clinical, neuropsychological test results, medial temporal atrophy rating and white matter ratings were correlated with the final ADL scores. The subjects were further divided into ADL-preserved and declined groups for the comparison depending on final ADL scores. RESULTS: The annual decline of the Korean Mini-mental status examination (K-MMSE) score was 1.5+/-1.2 and of the Seoul-instrumental ADL score was 6.1+/-4.6. The Factors correlated with the ADL at baseline were the clinical dementia rating, K-MMSE, memory function score and the total neuropsychological test score, left medial temporal lobe atrophy rating, and the neuropsychiatric total score. Only the neuropsychological component including total test, frontal and visuospatial function scores were statistically different between the two groups in the baseline evaluation. CONCLUSIONS: The result of our preliminary study emphasize the other study results that the initial cognitive and dementia status are the strong predictive factors not only for the initial ADL dysfunction but also for the ADL decline in years followed-up dementia cohort.
Activities of Daily Living*
;
Alzheimer Disease*
;
Atrophy
;
Caregivers
;
Cohort Studies
;
Dementia*
;
Follow-Up Studies*
;
Humans
;
Memory
;
Methods
;
Neuropsychological Tests
;
Temporal Lobe
7.Effects of Galantamine Treatment on Attention, Activities of Daily Living, and Neuropsychiatric Symptoms between the Patients with Pure Alzheimer's Disease and Mixed Dementia.
Hyo Shin KANG ; Ji Hae YUN ; Inn Sook AHN ; Yu Jin MOON ; Tae Young HWANG ; Young Min LEE ; Hyeran KIM ; Doh Kwan KIM
Journal of Korean Geriatric Psychiatry 2012;16(1):24-30
OBJECTIVES: The purpose of this study was to compare the efficacy of galantamine treatment, especially attention ability between patients with pure Alzheimer's disease (AD) and Mixed dementia (MD) during a 24-week trial. METHODS: A total of 40 patients were recruited for this 24-week study. The effect of galantamine on attention was measured using Seoul Computerized NeuroCognitive Function Test (SCNT) and frontal functions test of Seoul Neuropsychological Screening Battery (SNSB). Patients'activities of daily living using the Seoul-Activities of Daily Living (S-ADL) and the Seoul-Instrumental Activities of Daily Living (S-IADL) ; behavioral symptoms using the Korean version Neuropsychiatric Inventory (K-NPI) were measured at baseline and 24-week. RESULTS: 17 pure AD patients and 23 MD patients were analyzed in this study. Attention as measured by SCNT was not significantly different from baseline after 24 weeks of treatment in both groups. There was no significant difference between two groups in mean change from baseline in the SCNT, S-ADL, S-IADL and K-NPI scores at 24-week. CONCLUSION: Galantamine showed a therapeutic effect on cognition, activities of daily living, neuropsychiatric symptoms in pure AD and MD. Furthermore, Galantamine may specifically help to maintain attention and it may have positive effects on other cognitive and functional abilities.
Activities of Daily Living
;
Alzheimer Disease
;
Attention
;
Behavioral Symptoms
;
Cognition
;
Dementia
;
Galantamine
;
Humans
;
Mass Screening
8.Histologic assessment of the biological effects after speedy surgical orthodontics in a beagle animal model: a preliminary study.
Hong Suk KIM ; Young Jun LEE ; Young Guk PARK ; Kyu Rhim CHUNG ; Yoon Goo KANG ; HyeRan CHOO ; Seong Hun KIM
Korean Journal of Orthodontics 2011;41(5):361-370
OBJECTIVE: Speedy surgical orthodontics (SSO), an innovative orthodontic treatment, involves the application of orthopedic forces against temporary skeletal anchorage devices following perisegmental corticotomy to induce movement of specific dental segments. Herein, we report the biological effects of SSO on the teeth and periodontal structures. METHODS: Five beagle dogs were divided into 2 groups and their 6 maxillary incisors were retracted en masse by applying 500 g orthopedic force against a single palatal mini-plate. Retraction was performed without and with perisegmental corticotomy in groups I and II, respectively. All animals were killed on the 70th day, and their periodontal structures were processed for histologic analyses and scanning electronic microscopy (SEM). The linear distance between the third maxillary incisor and canine was used as a benchmark to quantify the retraction amount. RESULTS: Retraction was markedly faster and retraction amount greater in group II than in Group I. Surprisingly, Group II did not show any root resorption despite extensive retraction, while Group I showed prominent root surface irregularities. Similarly, SEM showed multiple resorption lacunae in Group I, but not in Group II. CONCLUSIONS: SSO is an effective and favorable orthodontic approach for major en masse retraction of the maxillary anterior teeth.
Animals
;
Dogs
;
Electronics
;
Electrons
;
Incisor
;
Microscopy
;
Orthodontics
;
Orthopedics
;
Root Resorption
;
Tooth
9.Comparative Assessment of Clinical Efficacy after 12-Month Clinical Trial of Donepezil between the Patients with Pure Alzheimer's Disease and Mixed Dementia.
Hyo Shin KANG ; Inn Sook AHN ; Ji Hae YUN ; Yu Jin MOON ; Tae Young HWANG ; Young Min LEE ; Hyeran KIM ; Jae Won CHUNG ; Doh Kwan KIM
Journal of Korean Geriatric Psychiatry 2010;14(1):58-64
OBJECTIVES: The purpose of this study was to compare the efficacy of donepezil treatment between patients with pure Alzheimer's disease (AD) and Mixed dementia (MD) during a 12-month trial. METHODS: A total of 139 patients were recruited for this 52-week study. The effect of donepezil on cognitive function was measured using Alzheimer's Disease Assessment Scale-cognitive subscale-preliminary Korean version (ADAS-cog-K). Patients' activities of daily living using the Seoul-Instrumental Activities of Daily Living (S-IADL) and Seoul-Activities of Daily Living (S-ADL);behavioral symptoms using the Korean version Neuropsychiatric Inventory (K-NPI) were measured at baseline, 13-weeks, 26-weeks, 39-weeks and 52-weeks. We defined the responsive patients to donepezil at those who showed a cognitive improvement or no change during the first six-month clinical trial. RESULTS: 84 pure AD patients and 34 MD patients were available for intent-to-treat (ITT) last observation carried forward (LOCF) analysis. There was no significant difference between two groups in mean change from baseline in the total ADAS-cog-k, S-ADL, S-IADL and K-NPI scores at 52-week. Based on the operational criteria, 60.7% of pure AD patients and 58.8% of MD patients were responders to donepezil. CONCLUSION: MD patients had similar levels of efficacy with pure AD patients and donepezil was well tolerated in both groups. These results suggest that donepezil is an effective and well-tolerated treatment for MD patients as well as for pure AD patients.
Activities of Daily Living
;
Alzheimer Disease
;
Dementia
;
Humans
;
Indans
;
Piperidines
10.Comparative Assessment of Clinical Efficacy after 12-Month Clinical Trial of Donepezil between the Patients with Pure Alzheimer's Disease and Mixed Dementia.
Hyo Shin KANG ; Inn Sook AHN ; Ji Hae YUN ; Yu Jin MOON ; Tae Young HWANG ; Young Min LEE ; Hyeran KIM ; Jae Won CHUNG ; Doh Kwan KIM
Journal of Korean Geriatric Psychiatry 2010;14(1):58-64
OBJECTIVES: The purpose of this study was to compare the efficacy of donepezil treatment between patients with pure Alzheimer's disease (AD) and Mixed dementia (MD) during a 12-month trial. METHODS: A total of 139 patients were recruited for this 52-week study. The effect of donepezil on cognitive function was measured using Alzheimer's Disease Assessment Scale-cognitive subscale-preliminary Korean version (ADAS-cog-K). Patients' activities of daily living using the Seoul-Instrumental Activities of Daily Living (S-IADL) and Seoul-Activities of Daily Living (S-ADL);behavioral symptoms using the Korean version Neuropsychiatric Inventory (K-NPI) were measured at baseline, 13-weeks, 26-weeks, 39-weeks and 52-weeks. We defined the responsive patients to donepezil at those who showed a cognitive improvement or no change during the first six-month clinical trial. RESULTS: 84 pure AD patients and 34 MD patients were available for intent-to-treat (ITT) last observation carried forward (LOCF) analysis. There was no significant difference between two groups in mean change from baseline in the total ADAS-cog-k, S-ADL, S-IADL and K-NPI scores at 52-week. Based on the operational criteria, 60.7% of pure AD patients and 58.8% of MD patients were responders to donepezil. CONCLUSION: MD patients had similar levels of efficacy with pure AD patients and donepezil was well tolerated in both groups. These results suggest that donepezil is an effective and well-tolerated treatment for MD patients as well as for pure AD patients.
Activities of Daily Living
;
Alzheimer Disease
;
Dementia
;
Humans
;
Indans
;
Piperidines

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