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"Kwonoh Park"

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"Kwonoh Park"

Original Articles

[English]
Clinical Characteristics, Treatment Delivery, and Cisplatin Eligibility in Korean Patients Initially Diagnosed with Urothelial Carcinoma
Kwonoh Park, Jong Kil Nam, Bon Jin Koo, Hyun Jung Lee, Tae Un Kim, Hwaseong Ryu, Yun Jeong Hong, Seungsoo Lee, Dong Hoon Lee, Sung Woo Park
Ewha Med J 2021;44(3):63-69.   Published online July 31, 2021
DOI: https://doi.org/10.12771/emj.2021.44.3.63
Objectives

The aim of this study was to examine the clinical presentation, treatment delivery, and cisplatin eligibility of Korean patients with urothelial carcinoma (UC) in a real-world setting.

Methods

We performed a retrospective cohort study of patients initially diagnosed with UC from March 2013 to June 2018. Creatinine clearance >60 mL/min and Eastern Cooperative Oncology Group performance status (0-1) were adopted as cisplatin eligibility criteria.

Results

This study included 557 eligible patients. Median age was 71.0 years (range, 33-94 years), and males were dominant (80%). Primary tumor sites were: upper genitourinary tract, 18%; bladder, 81%; and urethra, 0.4%. Initial disease status was non-muscle invasive bladder cancer (313, 56%), diffuse infiltrating non-muscle invasive bladder cancer (19, 3%), cTanyN0 upper tract UC (75, 13%), cT2-4N0 bladder UC (82, 15%), TanyN1-3 UC (36, 7%), or initially metastatic UC (32, 6%). At the time of analysis (June 2019), following treatments were delivered to 134 patients with localized UC: radical operation with or without perioperative treatment (89, 67%), definitive chemoradiation (7, 5%), and palliative surgery or supportive care only (36, 28%). In total, 89 patients had metastatic UC, including those with recurrent disease (n=57), and 34 (38%) of the 89 were eligible for cisplatin.

Conclusion

Clinical presentations in East Asian UC patients were consistent with those of previous studies in other countries, except for a relatively high incidence of upper genitourinary tract. Our results can serve as a benchmark for further advances and future research for treatments of UC in East Asian patients.

Citations

Citations to this article as recorded by  
  • Undertreatment in patients with advanced urothelial cancer: systematic literature review and meta-analysis
    Mairead Kearney, Liu Zhang, Elizabeth Hubscher, Mihaela Musat, Sharada Harricharan, Thomas Wilke
    Future Oncology.2024; 20(16): 1123.     CrossRef
  • Four versus six cycles of platinum-based chemotherapy for advanced Urothelial carcinoma in the era of immune checkpoint inhibitors: A retrospective cohort study (FOCUS, KCSG-GU23-08)
    Kwonoh Park, Eo Jin Kim, Jin Young Kim, Hyojeong Kim, Inkeun Park, Joo-Hwan Park, Byeong Seok Sohn, Hyo Jin Lee, Jungmin Jo, Seok Jae Huh, Jae Lyun Lee
    Current Problems in Cancer.2024; 53: 101149.     CrossRef
  • Phase II study of neoadjuvant chemotherapy with four cycles of dose‐dense MVAC followed by radical cystectomy in Korean patients with muscle‐invasive or locally advanced urothelial carcinoma of bladder
    Kwonoh Park, Hyun Jung Lee, Tae Un Kim, Hwaseong Ryu, Yong Kan Ki, Yun Jeong Hong, Jong Kil Nam
    Asia-Pacific Journal of Clinical Oncology.2023; 19(6): 739.     CrossRef
  • 94 View
  • 3 Download
  • 3 Web of Science
  • 3 Crossref
[English]
Safety and Effectiveness of Indwelling Percutaneous Drainage in Hospitalized Terminally Ill Cancer Patients with Recurrent Ascites
Kwonoh Park, Geon Woo Lee, Jae-Joon Kim, Sang-Bo Oh, So Yeon Oh, Eun-Ju Park, Jin Hyeok Kim, Joo Yeon Jang, Ung-Bae Jeon
Ewha Med J 2020;43(2):29-34.   Published online April 30, 2020
DOI: https://doi.org/10.12771/emj.2020.43.2.29
Objectives

Terminally ill cancer patients in hospice palliative care unit are reluctant to undergo repetitive invasive procedures due to coagulopathies and poor performance or condition, while catheter management such as regular irrigation during hospitalization is easy. The purpose of this study was to investigate the safety and efficacy of indwelling intraperitoneal (IP) catheter in hospitalized terminally ill cancer patients with recurrent ascites.

Methods

A retrospective review was conducted in patients who underwent IP catheter at the hospice palliative care unit of Pusan National University Yangsan Hospital between August 2016 and June 2018. All catheters were inserted by interventional radiologists with radiological guidance. The primary end-points were functional IP catheter maintenance rate, which is catheter maintained with patency for drainage until the intended time.

Results

A total of 25 terminally ill cancer patients underwent IP catheters placements during the study period. All catheters were successfully inserted without major complications, but one patient had trivial bleeding and one other patient had temporary pain. The median time from admission to catheter insertion was 5 days (range, 1 to 49 days). Twenty-one catheters were maintained with function until the intended time, three cases were maintained without function, and the last one was removed early due to obstruction and pain. Finally, the functional IP maintenance rate was 84% (21/25) and the median functional catheter life span was 15 days (95% confidence interval, 10.8 to 17.2).

Conclusion

Our study showed relatively favorable results for IP catheter maintenance and safety in hospitalized terminally ill cancer patients with malignant ascites.

  • 55 View
  • 0 Download
[English]
Advance Directives for Advanced Cancer Patients in Oncology Department: Single Center Experience
Byung Wook Jung, Jun Gyu Song, Sae Han Kang, Byung Woo Yoon, Yonggeon Song, Kwonoh Park
Ewha Med J 2016;39(4):104-109.   Published online October 27, 2016
DOI: https://doi.org/10.12771/emj.2016.39.4.104
Objectives

Advance directives (AD) are designed to protect patients’ autonomy and self-determination, which mean the end of life care planning should precede before loss of their decision ability. We aimed to analyze our experience of AD at field of oncology, focusing on preference of end-of-life care and outcome in advanced cancer patients.

Methods

A retrospective review was conducted on advanced cancer patients who underwent AD at the department of Oncology of Hanil General Hospital, between April 2013 and January 2014. AD are composed of decision about end of life care (resuscitation, ventilator, artificial tube feeding) and determination of proxy.

Results

Among 23 patients who were recommended AD during study period, 19 patients (83%) successfully underwent AD. The median age was 67 years (range, 50 to 95 years) and male was predominance (84%) was observed. Most of them (90%) have not heard of AD in the past. With regard to decision of end-of-life care, decision for resuscitation and ventilator were selected only by 1 patient (5%), respectively, while 10 patients (52%) decided to receive tube feeding. Among 5 patients who underwent AD during chemotherapy, there was neither transfer to other hospital for anti-cancer treatment nor follow up loss.

Conclusion

AD might be applicable in advanced cancer patients at field of oncology, including also patients treated with palliative chemotherapy.

  • 56 View
  • 0 Download
Case Reports
[English]
Diffuse Large B-Cell Lymphoma Transformed from a Rectal Mucosa-Associated Lymphoid Tissue Lymphoma
Sae Han Kang, Jang Won Park, Byung Wook Jung, Jun Gyu Song, Hyun Sik Oh, Kwonoh Park
Ewha Med J 2016;39(2):51-55.   Published online April 29, 2016
DOI: https://doi.org/10.12771/emj.2016.39.2.51

Primary rectal lymphoma is a rare disease among the gastrointestinal (GI) lymphoma. In particular, diffuse large B-cell lymphoma (DLBCL) transformed from mucosa-associated lymphoid tissue (MALT) lymphoma is often the primary type of GI lymphoma, mostly in stomach or duodenum, but has never been reported in rectum. Here we report an unusual case in which a 75-year-old male patient diagnosed with DLBCL transformed from MALT lymphoma in the rectum. The patient was diagnosed as rectal DLBCL transformed from MALT lymphoma as Lugano stage II2 and was treated with chemotherapy (R-CHOP) with CD-20 monoclonal antibody (rituxaimb). Complete remission of multiple lymphadenopathy and mass forming ulcer of the rectum was achieved after 6 cycles of R-CHOP. He has been free from disease for 12 months.

Citations

Citations to this article as recorded by  
  • Clinical Characteristics and Long-Term Prognosis of Colorectal Mucosa-Associated Lymphoid Tissue Lymphoma According to the Endoscopic Classification and Treatment Modality: A Multicenter Study
    Seung Min Hong, Dong Hoon Baek, Geun Am Song, Hong Sub Lee, Seung Bum Lee, Ra Ri Cha, Tae-Oh Kim, Jae Hyun Kim, Jong Hoon Lee
    Cancers.2025; 17(5): 750.     CrossRef
  • 67 View
  • 0 Download
  • 1 Crossref
[English]
Pulmonary Tumor Thrombotic Microangiopathy Associated with Advanced Gastric Cancer Successfully Treated with Chemotherapy
Seung-Hyun Yoo, Kwonoh Park, Ji Yeon Hong, Ji Yeon Kim, Jang Won Park, Yong Won Park, Kyung-Hun Lee, Kyung-So Jeon
Ewha Med J 2014;37(2):146-151.   Published online September 30, 2014
DOI: https://doi.org/10.12771/emj.2014.37.2.146

Pulmonary tumor thrombotic microangiopathy (PTTM) is an uncommon and fatal malignancy-related pulmonary complication characterized by fibrocellular intimal proliferation of small pulmonary arteries and arterioles. It causes marked pulmonary hypertension, right-side heart failure, and sudden death. Diagnosis of PTTM is extremely difficult while the patient is alive. Here, we report a 44-year-old woman who presented with complaining of progressing dyspnea and pulmonary hypertension but with no history of cancer. She was diagnosed with PTTM caused by advanced gastric cancer ante mortem and was treated effectively with chemotherapy.

Citations

Citations to this article as recorded by  
  • Pulmonary Tumor Thrombotic Microangiopathy Associated With Gastric Cancer: Clinical Characteristics and Outcomes
    Tae-Se Kim, Soomin Ahn, Sung-A Chang, Sung Hee Lim, Byung-Hoon Min, Yang Won Min, Hyuk Lee, Poong-Lyul Rhee, Jae J. Kim, Jun Haeng Lee
    Journal of Gastric Cancer.2025;[Epub]     CrossRef
  • Sudden Development of Fatal Pulmonary due to Suspected Pulmonary Tumoral Thrombotic Microangiopathy among Patients with Cancer: Case Series of Clinical and CT Features in 10 Patients
    Bo Kyung Kim, Yookyung Kim, Kyung Eun Lee
    Journal of the Korean Society of Radiology.2024; 85(6): 1169.     CrossRef
  • 77 View
  • 0 Download
  • 2 Crossref
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