1.Prognostic value of the maximum standardized uptake value for the locoregional control in early glottic cancer
Donghyun KIM ; Yongkan KI ; Jihyeon JOO ; Hosang JEON ; Dahl PARK ; Jiho NAM ; Wontaek KIM
Radiation Oncology Journal 2021;39(4):297-303
Purpose:
To evaluate the prognostic value of the pretreatment maximum standardized uptake value (SUVmax) for locoregional control (LRC) of early glottic cancer treated with primary radiotherapy.
Materials and Methods:
We retrospectively reviewed the medical records of 101 patients with T1-T2N0 glottic cancer treated with helical tomotherapy between 2013 and 2016. The clinical T-stages were T1 in 87 (86.1%) and T2 in 14 (13.9%) patients. The median total dose was 63 Gy (63–67.5 Gy) in 2.25 Gy per fraction. The survival outcomes were plotted using Kaplan-Meier curves. Receiver operating characteristic curves were used to assess the optimal SUVmax cut-off value for predicting locoregional recurrence.
Results:
The median follow-up period was 58 months (range, 11 to 90 months). The 5-year overall survival (OS) and locoregional recurrence-free survival rates were 96.8% and 85.4%, respectively. The median pretreatment SUVmax of the primary tumor for all 101 patients was 2.3 (range, 1.1 to 9.1). The best cut-off value for SUVmax for predicting LRC was 3.3, with a sensitivity of 78.6% and specificity of 73.6%. Univariate analysis showed that T-stage, overall treatment time (≥43 days), and high SUVmax (≥3.3) were significant predictors of LRC. Multivariate analysis showed that LRC was independently affected by a high SUVmax (≥3.3) (hazard ratio = 5.505, p = 0.020).
Conclusion
High pretreatment SUVmax (≥3.3) is a negative prognostic factor for LRC in early glottic cancer patients treated with primary radiotherapy.
2.Hypokalemic Periodic Paralysis Developed in a Patient with Neurogenic Diabetes Insipidus
Jihyeon HWANG ; Joo Hye SUNG ; Ye Eun KIM ; Keonyeup KIM ; Seong-Hwan KIM ; Young Bin PARK ; Seol-Hee BAEK
Journal of the Korean Neurological Association 2021;39(3):177-180
Hypokalemic periodic paralysis one of the channelopathy disorders with low serum potassium level, clinically presenting as acute onset extremity weakness. In most cases, the cause of the hypokalemia is familial, but rarely hypokalemic periodic paralysis occurs secondary to other diseases including endocrinopathies, renal disorders, gastrointestinal loss. We report a patient with no known underlying diseases, who were diagnosed with sporadic hypokalemic periodic paralysis accompanied by neurogenic diabetes insipidus.
3.Hypokalemic Periodic Paralysis Developed in a Patient with Neurogenic Diabetes Insipidus
Jihyeon HWANG ; Joo Hye SUNG ; Ye Eun KIM ; Keonyeup KIM ; Seong-Hwan KIM ; Young Bin PARK ; Seol-Hee BAEK
Journal of the Korean Neurological Association 2021;39(3):177-180
Hypokalemic periodic paralysis one of the channelopathy disorders with low serum potassium level, clinically presenting as acute onset extremity weakness. In most cases, the cause of the hypokalemia is familial, but rarely hypokalemic periodic paralysis occurs secondary to other diseases including endocrinopathies, renal disorders, gastrointestinal loss. We report a patient with no known underlying diseases, who were diagnosed with sporadic hypokalemic periodic paralysis accompanied by neurogenic diabetes insipidus.
4.Analysis of risk factors for disease progression after salvage radiation therapy with androgen deprivation therapy in prostate cancer patients who have prostate-specific antigen persistence after radical prostatectomy
Kyeonghyo LEE ; Dongchan KIM ; Jiho NAM ; Dahl PARK ; Wontaek KIM ; Jihyeon JOO ; Hosang JEON ; Yongkan KI ; Donghyun KIM
Radiation Oncology Journal 2024;42(2):124-129
Purpose:
To assess risk factors of disease progression after salvage radiation therapy (SRT) with androgen deprivation therapy (ADT) in case of prostate-specific antigen (PSA) persistence after radical prostatectomy (RP).
Materials and Methods:
We analyzed 57 patients who received SRT with ADT between 2013 and 2019 due to PSA persistence after RP. The endpoint was disease progression defined by biochemical recurrence or clinical recurrence. Age, Pre-RP PSA level, Gleason score, pathologic stage, presence of pelvic lymph node dissection, surgical margins, and PSA at 6-8 weeks after RP were analyzed as predictive factors for disease progression. Kaplan-Meier method and Cox regression models were used for data analysis.
Results:
At a median follow-up of 38 months (interquartile range, 26–61), 17 patients had disease progression. Pathologic T stage (pT3b vs. pT3a or lower; hazard ratio [HR] = 9.20; p = 0.035) and PSA level at 6-8 weeks after RP (≥2.04 vs. <2.04 ng/mL; HR = 5.85; p = 0.002) were predictors of disease progression. The 5-year disease progression-free survival rate was 46.7% in pT3b group as compared to 92.9 % in pT3a or lower group, and 18.4% for PSA ≥2.04 ng/mL after RP as compared to 79.2% for PSA <2.04 ng/mL.
Conclusion
Pathological T stage (pT3b) and post RP PSA ≥2.04 ng/mL are independent risk factors of disease progression after SRT with ADT in patients with PSA persistence after RP.
5.Recommendations for Adult Immunization by the Korean Society of Infectious Diseases, 2023: Minor Revisions to the 3rd Edition
Won Suk CHOI ; Joon Young SONG ; Ki Tae KWON ; Hyo-Jin LEE ; Eun Ju CHOO ; Jihyeon BAEK ; BumSik CHIN ; Woo Joo KIM ; Mi Suk LEE ; Wan Beom PARK ; Sang Hoon HAN ; Jun Yong CHOI ; Joon Sup YEOM ; Jin-Soo LEE ; Hee-Jung CHOI ; Young Hwa CHOI ; Dong-Gun LEE ; Jung-Hyun CHOI ; Hee Jin CHEONG ;
Infection and Chemotherapy 2024;56(2):188-203
The Korean Society of Infectious Diseases has been regularly developing guidelines for adult immunization since 2007. In 2023, the guidelines for the following seven vaccines were revised: influenza, herpes zoster, pneumococcal, tetanus-diphtheria-pertussis (Tdap), human papillomavirus (HPV), meningococcal, and rabies vaccines. For the influenza vaccine, a recommendation for enhanced vaccines for the elderly was added. For the herpes zoster vaccine, a recommendation for the recombinant zoster vaccine was added. For the pneumococcal vaccine, the current status of the 15-valent pneumococcal conjugate vaccine and 20-valent PCV was described. For the Tdap vaccine, the possibility of using Tdap instead of tetanus-diphtheria vaccine was described. For the HPV vaccine, the expansion of the eligible age for vaccination was described. For the meningococcal vaccine, a recommendation for the meningococcal B vaccine was added. For the rabies vaccine, the number of pre-exposure prophylaxis doses was changed. This manuscript documents the summary and rationale of the revisions for the seven vaccines. For the vaccines not mentioned in this manuscript, the recommendations in the 3rd edition of the Vaccinations for Adults textbook shall remain in effect.