Purpose: Chronic myeloid leukemia (CML) in children, adolescents, and young adults is rare and differs from older adults. This study evaluated the outcomes of allogeneic hematopoietic stem cell transplantation (HSCT) in young Korean CML patients during the tyrosine kinase inhibitor (TKI) era. Materials and Methods: A retrospective analysis of 35 CML patients aged < 40 years who underwent allogeneic HSCT from 2009 to 2019 was conducted using Korean Blood and Marrow Transplantation Registry data. Patients were grouped by age < 20 years at HSCT (group 1, n=15) and 20-40 years at HSCT (group 2, n=20). Survival outcomes including overall survival (OS), relapse-free survival (RFS), and event-free survival (EFS) were analyzed using the Kaplan-Meier method. Results: The median time between diagnosis and HSCT was 8.9 months. All the patients achieved engraftment but platelet recovery was significantly slower in group 1 (p=0.034). Acute and chronic graft-versus-host disease occurred in 54.3% and 34.3%, respectively. Five-year OS, RFS, and EFS rates of total patients were 66.8%, 50.8%, and 47.6%, with better OS was observed in group 1 by multivariable analysis (p=0.048). Disease status at HSCT was a significant predictor of OS (p=0.028), RFS (p=0.003), and EFS (p=0.004). Disease progression occurred in 13 out of 35 patients (37.1%); treatment-related mortality accounted for 63.6% of deaths (7 out of 11). Conclusion When performed at a younger age, allogeneic HSCT result in superior outcome in CML. Achieving remission before HSCT is critical for improved outcomes, highlighting the importance of pretransplant remission via optimal TKI strategies and minimal residual disease monitoring.

With the development of the digital system in dental field, accurate diagnosis, fixture placement, and convenient prosthetic restoration have become applicable during implant treatment. In this case report, maxillary complete denture and mandibular implant supported fixed prostheses were fabricated in an edentulous patient. Appropriate interim dentures of the maxillary and mandibular were fabricated according to conventional method, and to evaluate the usage of complete denture. In mandibular, multiple implants’ diagnostic analysis upon ideal position was possible using interim denture and the digital system. This case is presented as satisfactory treatment results were achieved after the delivery of definitive prostheses.

With the development of the digital system in dental field, accurate diagnosis, fixture placement, and convenient prosthetic restoration have become applicable during implant treatment. In this case report, maxillary complete denture and mandibular implant supported fixed prostheses were fabricated in an edentulous patient. Appropriate interim dentures of the maxillary and mandibular were fabricated according to conventional method, and to evaluate the usage of complete denture. In mandibular, multiple implants’ diagnostic analysis upon ideal position was possible using interim denture and the digital system. This case is presented as satisfactory treatment results were achieved after the delivery of definitive prostheses.

With the development of the digital system in dental field, accurate diagnosis, fixture placement, and convenient prosthetic restoration have become applicable during implant treatment. In this case report, maxillary complete denture and mandibular implant supported fixed prostheses were fabricated in an edentulous patient. Appropriate interim dentures of the maxillary and mandibular were fabricated according to conventional method, and to evaluate the usage of complete denture. In mandibular, multiple implants’ diagnostic analysis upon ideal position was possible using interim denture and the digital system. This case is presented as satisfactory treatment results were achieved after the delivery of definitive prostheses.

With the development of the digital system in dental field, accurate diagnosis, fixture placement, and convenient prosthetic restoration have become applicable during implant treatment. In this case report, maxillary complete denture and mandibular implant supported fixed prostheses were fabricated in an edentulous patient. Appropriate interim dentures of the maxillary and mandibular were fabricated according to conventional method, and to evaluate the usage of complete denture. In mandibular, multiple implants’ diagnostic analysis upon ideal position was possible using interim denture and the digital system. This case is presented as satisfactory treatment results were achieved after the delivery of definitive prostheses.

With the development of the digital system in dental field, accurate diagnosis, fixture placement, and convenient prosthetic restoration have become applicable during implant treatment. In this case report, maxillary complete denture and mandibular implant supported fixed prostheses were fabricated in an edentulous patient. Appropriate interim dentures of the maxillary and mandibular were fabricated according to conventional method, and to evaluate the usage of complete denture. In mandibular, multiple implants’ diagnostic analysis upon ideal position was possible using interim denture and the digital system. This case is presented as satisfactory treatment results were achieved after the delivery of definitive prostheses.

Background: This study aimed to compare the mechanical characteristics of four fixation methods including an anatomical suprapectineal quadrilateral surface (QLS) plate in hemipelvic models of anterior column–posterior hemitransverse acetabular fractures typical in elderly patients. Methods: In total, 24 composite hemipelvic models were used and allocated to four groups: group 1, pre-contoured anatomical suprapectineal QLS plate; group 2, suprapectineal reconstruction plate with two periarticular long screws; group 3, suprapectineal reconstruction plate with a buttress reconstruction plate; group 4, suprapectineal reconstruction plate with a buttress T-plate. Axial structural stiffness and displacement of each column fragment in four different fixation constructs were compared. Results: Multiple group comparisons of axial structural stiffness demonstrated significant difference (p = 0.001). Although there was no significant difference between groups 1 and 2 (p = 0.699), group 1 showed greater stiffness than groups 3 and 4 (p = 0.002 and 0.002, respectively). Group 1 showed less displacement in the anterior region of the anterior fragment than group 4 (p = 0.009) and in the posterior region than groups 3 and 4 (p = 0.015 and p = 0.015, respectively). However, group 1 demonstrated greater displacement than group 2 in the posterior region of the posterior fragment (p = 0.004), while showing similar displacement to groups 3 and 4. Conclusions The anatomical suprapectineal QLS plate provided the mechanical stability comparable or superior to other existing fixations in osteoporotic models of anterior column–posterior hemitransverse acetabular fractures typical in the elderly. However, additional plate modification would be needed for better stability and outcomes.

Background/Aims: We performed a prospective study to determine the efficacy and safety of rituximab including chemotherapy in CD20-positive acute lymphoblastic leukemia (ALL). Methods: Patients with newly diagnosed ALL, aged ≥ 15 years, were eligible for the study if their leukemic blast cells in bone marrow expressed CD20 ≥ 20% at the time of diagnosis. Patients received multiagent chemotherapy with rituximab. After achieving complete remission (CR), patients received five cycles of consolidation with concomitant rituximab. Rituximab was administered monthly from day 90 of transplantation for patients who received allogeneic hematopoietic cell transplantation. Results: In patients with Philadelphia (Ph)-negative ALL, 39 of 41 achieved CR (95.1%), the 2- and 4-year relapse-free survival (RFS) rates were 50.4% and 35.7%, and the 2- and 4-year overall survival (OS) rates were 51.5% and 43.2%, respectively. In the group with Ph-positive ALL, all 32 patients achieved CR, the 2- and 4-year RFS rates were 60.7% and 52.1%, and the 2- and 4-year OS rates were 73.3% and 52.3%, respectively. In the Ph-negative ALL group, patients with higher CD20 positivity experienced more favorable RFS (p < 0.001) and OS (p = 0.06) than those with lower CD20 positivity. Patients who received ≥ 2 cycles of rituximab after transplantation had significantly improved RFS (hazard ratio [HR], 0.31; p = 0.049) and OS (HR, 0.29; p = 0.021) compared with those who received < 2 cycles. Conclusions The addition of rituximab to conventional chemotherapy for CD20-positive ALL is effective and tolerable (Clinicaltrials. gov NCT01429610).

We performed a point seroprevalence survey of measles among healthcare workers (HCWs) at two Korean teaching hospitals in 2019. A total of 2,830 HCWs underwent an antibody test.The overall seropositivity of measles was 93.1%. The seroprevalence of measles was lowest in HCWs aged 20 - 24 years (81.2%), followed by those aged 25 - 29 years (90.1%). The rates of anti-measles IgG positivity were significantly different between the two hospitals (97.0% vs.89.4%, P <0.001). These results suggest that the seropositivity of measles in HCWs may differ depending on the hospital's vaccination policy.

Asthma ; Bronchitis ; Cohort Studies ; Cough ; Diagnosis ; Disease Management ; Eosinophils ; Epidemiology ; Female ; Gastroesophageal Reflux ; Humans ; Korea ; Lung Diseases ; Multivariate Analysis ; Observational Study ; Pregnant Women ; Retrospective Studies ; Tuberculosis