1.Validating the Korean Geriatric Assessment Tool in Elderly Multiple Myeloma Patients: A Multicenter Study
Ji Yun LEE ; Sang-A KIM ; Youngil KOH ; Ho-Young YHIM ; Gyeong-Won LEE ; Chang-Ki MIN ; Young Rok DO ; Hyo Jung KIM ; Sung Hwa BAE ; Hyeon-Seok EOM ; Sung-Hoon JUNG ; Hyunkyung PARK ; Seung-Hyun NAM ; Ji Hyun LEE ; Sung-Hyun KIM ; Hyun Jung LEE ; Young Seob PARK ; Soo-Mee BANG
Cancer Research and Treatment 2026;58(1):311-319
Purpose:
This study evaluates the Korean Cancer Study Group Geriatric Score-7 (KG-7) frailty screening tool’s effectiveness in elderly multiple myeloma (MM) patients to prevent under and overtreatment.
Materials and Methods:
This prospective pilot cohort study included 100 elderly patients aged 70 and older with newly diagnosed MM who had not undergone transplantation from August 2020 to January 2022.
Results:
The median age was 77 years, and 73.0% of patients were classified at International Staging System stages 2 or 3. Using a 5-point cutoff on the KG-7 index (non-frail, score ≥ 5; frail, score < 5), 31% were categorized as frail. After a median follow-up of 26.8 months, the 3-year overall survival rate was 73.0%. There was no statistically significant association between any frailty index and the risk of death. However, frail patients defined by the simplified frailty index (hazard ratio [HR], 2.49; 95% confidence interval [CI], 1.09 to 5.95; p=0.030) and by KG-7 (HR, 2.43; 95% CI, 1.03 to 5.86; p=0.043) had a significantly higher risk of grade 3-4 non-hematologic toxicity, whereas the International Myeloma Working Group definition did not. Over a 24-month tracking period, vulnerability as measured by KG-7 either improved or deteriorated.
Conclusion
The pilot study, which had a limited number of participants, did not demonstrate KG-7’s effectiveness in predicting survival; however, it successfully predicted severe non-hematologic toxicities. We plan to conduct larger studies in elderly MM patients to determine whether KG-7 can help tailor their treatment regimens.
2.Therapeutic effects of surgical debulking of metastatic lymph nodes in cervical cancer IIICr: a trial protocol for a phase III, multicenter, randomized controlled study (KGOG1047/DEBULK trial)
Bo Seong YUN ; Kwang-Beom LEE ; Keun Ho LEE ; Ha Kyun CHANG ; Joo-Young KIM ; Myong Cheol LIM ; Chel Hun CHOI ; Hanbyoul CHO ; Dae-Yeon KIM ; Yun Hwan KIM ; Joong Sub CHOI ; Chae Hyeong LEE ; Jae-Weon KIM ; Sang Wun KIM ; Yong Bae KIM ; Chi-Heum CHO ; Dae Gy HONG ; Yong Jung SONG ; Seob JEON ; Min Kyu KIM ; Dae Hoon JEONG ; Hyun PARK ; Seok Mo KIM ; Sang-Il PARK ; Jae-Yun SONG ; Asima MUKHOPADHYAY ; Dang Huy Quoc THINH ; Nirmala Chandralega KAMPAN ; Grace J. LEE ; Jae-Hoon KIM ; Keun-Yong EOM ; Ju-Won ROH
Journal of Gynecologic Oncology 2024;35(5):e57-
Background:
Bulky or multiple lymph node (LN) metastases are associated with poor prognosis in cervical cancer, and the size or number of LN metastases is not yet reflected in the staging system and therapeutic strategy. Although the therapeutic effects of surgical resection of bulky LNs before standard treatment have been reported in several retrospective studies, wellplanned randomized clinical studies are lacking. Therefore, the aim of the Korean Gynecologic Oncology Group (KGOG) 1047/DEBULK trial is to investigate whether the debulking surgery of bulky or multiple LNs prior to concurrent chemoradiation therapy (CCRT) improves the survival rate of patients with cervical cancer IIICr diagnosed by imaging tests.
Methods
The KGOG 1047/DEBULK trial is a phase III, multicenter, randomized clinical trial involving patients with bulky or multiple LN metastases in cervical cancer IIICr. This study will include patients with a short-axis diameter of a pelvic or para-aortic LN ≥2 cm or ≥3 LNs with a short-axis diameter ≥1 cm and for whom CCRT is planned. The treatment arms will be randomly allocated in a 1:1 ratio to either receive CCRT (control arm) or undergo surgical debulking of bulky or multiple LNs before CCRT (experimental arm). CCRT consists of extended-field external beam radiotherapy/pelvic radiotherapy, brachytherapy and LN boost, and weekly chemotherapy with cisplatin (40 mg/m 2 ), 4–6 times administered intravenously.The primary endpoint will be 3-year progression-free survival rate. The secondary endpoints will be 3-year overall survival rate, treatment-related complications, and accuracy of radiological diagnosis of bulky or multiple LNs.
3.Therapeutic effects of surgical debulking of metastatic lymph nodes in cervical cancer IIICr: a trial protocol for a phase III, multicenter, randomized controlled study (KGOG1047/DEBULK trial)
Bo Seong YUN ; Kwang-Beom LEE ; Keun Ho LEE ; Ha Kyun CHANG ; Joo-Young KIM ; Myong Cheol LIM ; Chel Hun CHOI ; Hanbyoul CHO ; Dae-Yeon KIM ; Yun Hwan KIM ; Joong Sub CHOI ; Chae Hyeong LEE ; Jae-Weon KIM ; Sang Wun KIM ; Yong Bae KIM ; Chi-Heum CHO ; Dae Gy HONG ; Yong Jung SONG ; Seob JEON ; Min Kyu KIM ; Dae Hoon JEONG ; Hyun PARK ; Seok Mo KIM ; Sang-Il PARK ; Jae-Yun SONG ; Asima MUKHOPADHYAY ; Dang Huy Quoc THINH ; Nirmala Chandralega KAMPAN ; Grace J. LEE ; Jae-Hoon KIM ; Keun-Yong EOM ; Ju-Won ROH
Journal of Gynecologic Oncology 2024;35(5):e57-
Background:
Bulky or multiple lymph node (LN) metastases are associated with poor prognosis in cervical cancer, and the size or number of LN metastases is not yet reflected in the staging system and therapeutic strategy. Although the therapeutic effects of surgical resection of bulky LNs before standard treatment have been reported in several retrospective studies, wellplanned randomized clinical studies are lacking. Therefore, the aim of the Korean Gynecologic Oncology Group (KGOG) 1047/DEBULK trial is to investigate whether the debulking surgery of bulky or multiple LNs prior to concurrent chemoradiation therapy (CCRT) improves the survival rate of patients with cervical cancer IIICr diagnosed by imaging tests.
Methods
The KGOG 1047/DEBULK trial is a phase III, multicenter, randomized clinical trial involving patients with bulky or multiple LN metastases in cervical cancer IIICr. This study will include patients with a short-axis diameter of a pelvic or para-aortic LN ≥2 cm or ≥3 LNs with a short-axis diameter ≥1 cm and for whom CCRT is planned. The treatment arms will be randomly allocated in a 1:1 ratio to either receive CCRT (control arm) or undergo surgical debulking of bulky or multiple LNs before CCRT (experimental arm). CCRT consists of extended-field external beam radiotherapy/pelvic radiotherapy, brachytherapy and LN boost, and weekly chemotherapy with cisplatin (40 mg/m 2 ), 4–6 times administered intravenously.The primary endpoint will be 3-year progression-free survival rate. The secondary endpoints will be 3-year overall survival rate, treatment-related complications, and accuracy of radiological diagnosis of bulky or multiple LNs.
4.Therapeutic effects of surgical debulking of metastatic lymph nodes in cervical cancer IIICr: a trial protocol for a phase III, multicenter, randomized controlled study (KGOG1047/DEBULK trial)
Bo Seong YUN ; Kwang-Beom LEE ; Keun Ho LEE ; Ha Kyun CHANG ; Joo-Young KIM ; Myong Cheol LIM ; Chel Hun CHOI ; Hanbyoul CHO ; Dae-Yeon KIM ; Yun Hwan KIM ; Joong Sub CHOI ; Chae Hyeong LEE ; Jae-Weon KIM ; Sang Wun KIM ; Yong Bae KIM ; Chi-Heum CHO ; Dae Gy HONG ; Yong Jung SONG ; Seob JEON ; Min Kyu KIM ; Dae Hoon JEONG ; Hyun PARK ; Seok Mo KIM ; Sang-Il PARK ; Jae-Yun SONG ; Asima MUKHOPADHYAY ; Dang Huy Quoc THINH ; Nirmala Chandralega KAMPAN ; Grace J. LEE ; Jae-Hoon KIM ; Keun-Yong EOM ; Ju-Won ROH
Journal of Gynecologic Oncology 2024;35(5):e57-
Background:
Bulky or multiple lymph node (LN) metastases are associated with poor prognosis in cervical cancer, and the size or number of LN metastases is not yet reflected in the staging system and therapeutic strategy. Although the therapeutic effects of surgical resection of bulky LNs before standard treatment have been reported in several retrospective studies, wellplanned randomized clinical studies are lacking. Therefore, the aim of the Korean Gynecologic Oncology Group (KGOG) 1047/DEBULK trial is to investigate whether the debulking surgery of bulky or multiple LNs prior to concurrent chemoradiation therapy (CCRT) improves the survival rate of patients with cervical cancer IIICr diagnosed by imaging tests.
Methods
The KGOG 1047/DEBULK trial is a phase III, multicenter, randomized clinical trial involving patients with bulky or multiple LN metastases in cervical cancer IIICr. This study will include patients with a short-axis diameter of a pelvic or para-aortic LN ≥2 cm or ≥3 LNs with a short-axis diameter ≥1 cm and for whom CCRT is planned. The treatment arms will be randomly allocated in a 1:1 ratio to either receive CCRT (control arm) or undergo surgical debulking of bulky or multiple LNs before CCRT (experimental arm). CCRT consists of extended-field external beam radiotherapy/pelvic radiotherapy, brachytherapy and LN boost, and weekly chemotherapy with cisplatin (40 mg/m 2 ), 4–6 times administered intravenously.The primary endpoint will be 3-year progression-free survival rate. The secondary endpoints will be 3-year overall survival rate, treatment-related complications, and accuracy of radiological diagnosis of bulky or multiple LNs.
5.Development and Validation of a Symptom-Focused Quality of Life Questionnaire (KOQUSS-40) for Gastric Cancer Patients after Gastrectomy
Bang Wool EOM ; Joongyub LEE ; In Seob LEE ; Young-Gil SON ; Keun Won RYU ; Sung Geun KIM ; Hyoung-Il KIM ; Young-Woo KIM ; Seong-Ho KONG ; Oh Kyoung KWON ; Ji-Ho PARK ; Ji Yeong AN ; Chang Hyun KIM ; Byoung-Jo SUH ; Hong Man YOON ; Myoung Won SON ; Ji Yeon PARK ; Jong-Min PARK ; Sang-Ho JEONG ; Moon-Won YOO ; Geum Jong SONG ; Han-Kwang YANG ; Yun-Suhk SUH ; Ki Bum PARK ; Sang-Hoon AHN ; Dong Woo SHIN ; Ye Seob JEE ; Hye-Seong AHN ; Sol LEE ; Jae Seok MIN ; Haejin IN ; Ahyoung KIM ; Hoon HUR ; Hyuk-Joon LEE ;
Cancer Research and Treatment 2021;53(3):763-772
Purpose:
Patients who have undergone gastrectomy have unique symptoms that are not appropriately assessed using currently available tools. This study developed and validated a symptom-focused quality of life (QoL) questionnaire for patients who have received gastrectomy for gastric cancer. Materials and Methods Based on a literature review, patient interviews, and expert consultation by the KOrean QUality of life in Stomach cancer patients Study group (KOQUSS), the initial item pool was developed. Two large-scale developmental studies were then sequentially conducted for exploratory factor analyses for content validity and item reduction. The final item pool was validated in a separate cohort of patients and assessed for internal consistency, test-retest reliability, construct validity, and clinical validity.
Results
The initial questionnaire consisted of 46-items in 12 domains. Data from 465 patients at 11 institutions, followed by 499 patients at 13 institutions, were used to conduct item reduction and exploratory factor analyses. The final questionnaire (KOQUSS-40) comprised 40 items within 11 domains. Validation of KOQUSS-40 was conducted on 413 patients from 12 hospitals. KOQUSS-40 was found to have good model fit. The mean summary score of the KOQUSS-40 was correlated with the EORTC QLQ-C30 and STO22 (correlation coefficients, 0.821 and 0.778, respectively). The KOQUSS-40 score was also correlated with clinical factors, and had acceptable internal consistency (> 0.7). Test-retest reliability was greater than 0.8. Conclusion The KOQUSS-40 can be used to assess QoL of gastric cancer patients after gastrectomy and allows for a robust comparison of surgical techniques in clinical trials.
6.Development and Validation of a Symptom-Focused Quality of Life Questionnaire (KOQUSS-40) for Gastric Cancer Patients after Gastrectomy
Bang Wool EOM ; Joongyub LEE ; In Seob LEE ; Young-Gil SON ; Keun Won RYU ; Sung Geun KIM ; Hyoung-Il KIM ; Young-Woo KIM ; Seong-Ho KONG ; Oh Kyoung KWON ; Ji-Ho PARK ; Ji Yeong AN ; Chang Hyun KIM ; Byoung-Jo SUH ; Hong Man YOON ; Myoung Won SON ; Ji Yeon PARK ; Jong-Min PARK ; Sang-Ho JEONG ; Moon-Won YOO ; Geum Jong SONG ; Han-Kwang YANG ; Yun-Suhk SUH ; Ki Bum PARK ; Sang-Hoon AHN ; Dong Woo SHIN ; Ye Seob JEE ; Hye-Seong AHN ; Sol LEE ; Jae Seok MIN ; Haejin IN ; Ahyoung KIM ; Hoon HUR ; Hyuk-Joon LEE ;
Cancer Research and Treatment 2021;53(3):763-772
Purpose:
Patients who have undergone gastrectomy have unique symptoms that are not appropriately assessed using currently available tools. This study developed and validated a symptom-focused quality of life (QoL) questionnaire for patients who have received gastrectomy for gastric cancer. Materials and Methods Based on a literature review, patient interviews, and expert consultation by the KOrean QUality of life in Stomach cancer patients Study group (KOQUSS), the initial item pool was developed. Two large-scale developmental studies were then sequentially conducted for exploratory factor analyses for content validity and item reduction. The final item pool was validated in a separate cohort of patients and assessed for internal consistency, test-retest reliability, construct validity, and clinical validity.
Results
The initial questionnaire consisted of 46-items in 12 domains. Data from 465 patients at 11 institutions, followed by 499 patients at 13 institutions, were used to conduct item reduction and exploratory factor analyses. The final questionnaire (KOQUSS-40) comprised 40 items within 11 domains. Validation of KOQUSS-40 was conducted on 413 patients from 12 hospitals. KOQUSS-40 was found to have good model fit. The mean summary score of the KOQUSS-40 was correlated with the EORTC QLQ-C30 and STO22 (correlation coefficients, 0.821 and 0.778, respectively). The KOQUSS-40 score was also correlated with clinical factors, and had acceptable internal consistency (> 0.7). Test-retest reliability was greater than 0.8. Conclusion The KOQUSS-40 can be used to assess QoL of gastric cancer patients after gastrectomy and allows for a robust comparison of surgical techniques in clinical trials.
7.Primary Leiomyosarcoma in Bladder
Tae Wook KANG ; Min Seob EOM ; Hyun Chul CHUNG
Korean Journal of Urological Oncology 2019;17(1):66-69
Leiomyosarcoma of the bladder is a very rare tumor and it has been reported in less than 200 cases in the literature which represent 0.1% of all nonurothelial bladder tumors. We experienced a case of sarcoma of bladder that protruding into the urinary bladder in 51-year-old woman. She underwent mass excision with enucleation for the bladder function preservation. Pathologically, the mass consisted of high grade leiomyosarcoma. In immunohistochemical study, tumor showed positive reactions for smooth muscle actin and desmin. After mass excision, follow-up radiation treatment is ongoing. Herein, we present the case of a high-grade leiomyosarcoma with literature review.
Actins
;
Desmin
;
Female
;
Follow-Up Studies
;
Humans
;
Leiomyosarcoma
;
Middle Aged
;
Muscle, Smooth
;
Sarcoma
;
Urinary Bladder Neoplasms
;
Urinary Bladder
8.Eccrine Poroma of the Auricle: A Case Report.
Tae Hoon KONG ; Tae Hyoung HA ; Min Seob EOM ; Sang Yoo PARK
Korean Journal of Audiology 2014;18(3):151-152
Eccrine poroma is described as a benign neoplasm originating from the intraepidermal eccrine duct of sweat glands. This tumor is known to arise in bare skin areas, but more rarely appeared in head and neck region. A 54-year-old female presented with a mass on the retroauricular aspect of the left auricle. There was a soft, protruding, and purple-colored, solitary mass of about 1.0x1.0 cm in size. After authors performed an excisional biopsy, eccrine poroma was confirmed histopathologically. Thus, we report a rare case of eccrine poroma of the ear with the review of literature.
Biopsy
;
Ear
;
Ear Auricle
;
Female
;
Head
;
Humans
;
Middle Aged
;
Neck
;
Poroma*
;
Skin
;
Sweat Glands
9.Placental Transmogrification of the Lung.
Jin Woo KIM ; Il Hwan PARK ; Woocheol KWON ; Min Seob EOM ; Young Ju KIM ; Joong Hwan OH
Korean Journal of Radiology 2013;14(6):977-980
Placental transmogrification is a very rare lung disease, where the alveoli resemble the chorionic villi of placenta, and this change is a characteristic finding. A 31-year-old female patient presented with cough and dyspnea that had begun 2 weeks prior to admission. Along with giant bulla found in the left upper lung field, subsegmental consolidation was also identified in the lingular segment on plain chest radiograph and CT scan. Wedge resection was performed to remove the bulla. Pathologic examination of the resected bulla revealed destruction of the normal structures and characteristic villous and papillary changes. These changes led to a diagnosis of placental transmogrification. We made an encounter of an unusual placental transmogrification which had different image findings from other reported transmogrification cases. Thus, we report an atypical placental transmogrification case where both consolidation and giant bulla coexist.
Adult
;
Chorionic Villi/*pathology
;
Diagnosis, Differential
;
Female
;
Humans
;
Lung/*pathology/radiography/surgery
;
Lung Diseases/pathology/*radiography/surgery
;
Pneumonectomy
;
Tomography, X-Ray Computed/*methods
10.Tubular Apocrine Adenoma with Syringocystadenoma Papilliferum of the External Auditory Canal.
Min Suk KANG ; Ju Shin LIM ; Sang Yoo PARK ; Min Seob EOM
Korean Journal of Otolaryngology - Head and Neck Surgery 2012;55(8):518-520
Tumors that develop from external auditory canal (EAC) are very rare. Adenoma that originates from apocrine is also a rare entity found in the EAC. Nevus sebaceous, syringocystadenoma papilliferum (SCAP), tubular apocrine adenoma (TAA), and fibroadenoma are known to originate from apocrine. Among them, SCAP is believed to be a benign tumor that is manifested as papule and plague on the scalp and the face. However, TAA is a rare intradermal eccrine tumor and it mostly manifests as an isolated single nodule within the scalp area. Generally, these tumors are considered as two separate entities. Many articles have reported on the prevalence of TAA or SCAP with nevus sebaceous on the body, extremities, and scalp; but only 2 articles were reported on tumors that developed from EAC. In this article, we report on a patient who presented a mass in EAC, with both SCAP and TAA pathohistologic finding without nevus sebaceous.
Adenoma
;
Aminocaproic Acids
;
Apocrine Glands
;
Ear Canal
;
Extremities
;
Fibroadenoma
;
Humans
;
Nevus
;
Plague
;
Prevalence
;
Scalp

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