1.Prevalence and Management of Venous Rupture Following Percutaneous Transluminal Angioplasty in Dysfunctional Arteriovenous Access: A Comparative Study of Primary Patency Rates with Non-Ruptured Access Circuits
Yoon Soo PARK ; Seung Boo YANG ; Chae Hoon KANG ; Dong Erk GOO
Journal of the Korean Society of Radiology 2024;85(4):746-753
Purpose:
This study aims to evaluate the incidence and management of venous ruptures after percutaneous transluminal angioplasty (PTA) for dysfunctional arteriovenous (AV) access.
Materials and Methods:
From January 1998 to December 2015, 13506 PTA, mechanical thrombectomy, and thrombolysis procedures were performed in 6732 patients. The venous rupture rate following PTA was obtained, and access circuit primary patency (ACPP) was compared according to the etiology (PTA, thrombotic occlusion, and treatment type) of the venous rupture present.
Results:
Venous rupture developed in 604 of the 13506 procedures. Venous ruptures were more frequent in female, AV graft cases, and in cases accompanied by thrombosis. Balloon tamponade was performed in 604 rupture cases, and stents were deployed in 119 cases where contrast extravasation and flow stasis persisted. ACPP was significantly better in the non-ruptured AV access circuits than in the ruptured group. However, AV access type and thrombosis was not associated with primary patency. In ruptured cases, ACPP is 8.4 months for prolonged balloon tamponade and 11.2 months for bare-metal stent insertion, showing statistically significant difference.
Conclusion
Balloon tamponade and bare-metal stent placement are effective treatment for PTA-induced venous ruptures. In particular, stent placement showed a similar ACPP to that of non-ruptured AV access circuits.
2.Prevalence and Management of Venous Rupture Following Percutaneous Transluminal Angioplasty in Dysfunctional Arteriovenous Access: A Comparative Study of Primary Patency Rates with Non-Ruptured Access Circuits
Yoon Soo PARK ; Seung Boo YANG ; Chae Hoon KANG ; Dong Erk GOO
Journal of the Korean Society of Radiology 2024;85(4):746-753
Purpose:
This study aims to evaluate the incidence and management of venous ruptures after percutaneous transluminal angioplasty (PTA) for dysfunctional arteriovenous (AV) access.
Materials and Methods:
From January 1998 to December 2015, 13506 PTA, mechanical thrombectomy, and thrombolysis procedures were performed in 6732 patients. The venous rupture rate following PTA was obtained, and access circuit primary patency (ACPP) was compared according to the etiology (PTA, thrombotic occlusion, and treatment type) of the venous rupture present.
Results:
Venous rupture developed in 604 of the 13506 procedures. Venous ruptures were more frequent in female, AV graft cases, and in cases accompanied by thrombosis. Balloon tamponade was performed in 604 rupture cases, and stents were deployed in 119 cases where contrast extravasation and flow stasis persisted. ACPP was significantly better in the non-ruptured AV access circuits than in the ruptured group. However, AV access type and thrombosis was not associated with primary patency. In ruptured cases, ACPP is 8.4 months for prolonged balloon tamponade and 11.2 months for bare-metal stent insertion, showing statistically significant difference.
Conclusion
Balloon tamponade and bare-metal stent placement are effective treatment for PTA-induced venous ruptures. In particular, stent placement showed a similar ACPP to that of non-ruptured AV access circuits.
3.Prevalence and Management of Venous Rupture Following Percutaneous Transluminal Angioplasty in Dysfunctional Arteriovenous Access: A Comparative Study of Primary Patency Rates with Non-Ruptured Access Circuits
Yoon Soo PARK ; Seung Boo YANG ; Chae Hoon KANG ; Dong Erk GOO
Journal of the Korean Society of Radiology 2024;85(4):746-753
Purpose:
This study aims to evaluate the incidence and management of venous ruptures after percutaneous transluminal angioplasty (PTA) for dysfunctional arteriovenous (AV) access.
Materials and Methods:
From January 1998 to December 2015, 13506 PTA, mechanical thrombectomy, and thrombolysis procedures were performed in 6732 patients. The venous rupture rate following PTA was obtained, and access circuit primary patency (ACPP) was compared according to the etiology (PTA, thrombotic occlusion, and treatment type) of the venous rupture present.
Results:
Venous rupture developed in 604 of the 13506 procedures. Venous ruptures were more frequent in female, AV graft cases, and in cases accompanied by thrombosis. Balloon tamponade was performed in 604 rupture cases, and stents were deployed in 119 cases where contrast extravasation and flow stasis persisted. ACPP was significantly better in the non-ruptured AV access circuits than in the ruptured group. However, AV access type and thrombosis was not associated with primary patency. In ruptured cases, ACPP is 8.4 months for prolonged balloon tamponade and 11.2 months for bare-metal stent insertion, showing statistically significant difference.
Conclusion
Balloon tamponade and bare-metal stent placement are effective treatment for PTA-induced venous ruptures. In particular, stent placement showed a similar ACPP to that of non-ruptured AV access circuits.
4.Dosimetric Analysis of a Phase I Study of PSMA-Targeting Radiopharmaceutical Therapy With 177 LuLudotadipep in Patients With Metastatic Castration-Resistant Prostate Cancer
Seunggyun HA ; Joo Hyun O ; Chansoo PARK ; Sun Ha BOO ; Ie Ryung YOO ; Hyong Woo MOON ; Dae Yoon CHI ; Ji Youl LEE
Korean Journal of Radiology 2024;25(2):179-188
Objective:
177 Lutetium [Lu] Ludotadipep is a novel prostate-specific membrane antigen targeting therapeutic agent with an albumin motif added to increase uptake in the tumors. We assessed the biodistribution and dosimetry of [ 177 Lu]Ludotadipep in patients with metastatic castration-resistant prostate cancer (mCRPC).
Materials and Methods:
Data from 25 patients (median age, 73 years; range, 60–90) with mCRPC from a phase I study with activity escalation design of single administration of [ 177 Lu]Ludotadipep (1.85, 2.78, 3.70, 4.63, and 5.55 GBq) were assessed. Activity in the salivary glands, lungs, liver, kidneys, and spleen was estimated from whole-body scan and abdominal SPECT/CT images acquired at 2, 24, 48, 72, and 168 h after administration of [ 177 Lu]Ludotadipep. Red marrow activity was calculated from blood samples obtained at 3, 10, 30, 60, and 180 min, and at 24, 48, and 72 h after administration. Organand tumor-based absorbed dose calculations were performed using IDAC-Dose 2.1.
Results:
Absorbed dose coefficient (mean ± standard deviation) of normal organs was 1.17 ± 0.81 Gy/GBq for salivary glands, 0.05 ± 0.02 Gy/GBq for lungs, 0.14 ± 0.06 Gy/GBq for liver, 0.77 ± 0.28 Gy/GBq for kidneys, 0.12 ± 0.06 Gy/GBq for spleen, and 0.07 ± 0.02 Gy/GBq for red marrow. The absorbed dose coefficient of the tumors was 10.43 ± 7.77 Gy/GBq.
Conclusion
[ 177 Lu]Ludotadipep is expected to be safe at the dose of 3.7 GBq times 6 cycles planned for a phase II clinical trial with kidneys and bone marrow being the critical organs, and shows a high tumor absorbed dose.
5.Hycanthone Inhibits Inflammasome Activation and Neuroinflammation-Induced Depression-Like Behaviors in Mice
Kyung-Jun BOO ; Edson Luck GONZALES ; Chilly Gay REMONDE ; Jae Young SEONG ; Se Jin JEON ; Yeong-Min PARK ; Byung-Joo HAM ; Chan Young SHIN
Biomolecules & Therapeutics 2023;31(2):161-167
Despite the various medications used in clinics, the efforts to develop more effective treatments for depression continue to increase in the past decades mainly because of the treatment-resistant population, and the testing of several hypotheses- and target-based treatments. Undesirable side effects and unresponsiveness to current medications fuel the drive to solve this top global health problem. In this study, we focused on neuroinflammatory response-mediated depression which represents a cluster of depression etiology both in animal models and humans. Several meta-analyses reported that proinflammatory cytokines such as interleukin 6 (IL-6) and tumor necrosis factor-α (TNF-α) were increased in major depressive disorder patients. Inflammatory mediators implicated in depression include type-I interferon and inflammasome pathways. To elucidate the molecular mechanisms of neuroinflammatory cascades underlying the pathophysiology of depression, we introduced hycanthone, an antischistosomal drug, to check whether it can counteract depressive-like behaviors in vivo and normalize the inflammation-induced changes in vitro. Lipopolysaccharide (LPS) treatment increased proinflammatory cytokine expression in the murine microglial cells as well as the stimulation of type I interferon-related pathways that are directly or indirectly regulated by Janus kinase-signal transducer and activator of transcription (JAK-STAT) activation. Hycanthone treatment attenuated those changes possibly by inhibiting the JAK-STAT pathway and inflammasome activation. Hycanthone also ameliorated depressive-like behaviors by LPS. Taken together, we suggest that the inhibitory action of hycanthone against the interferon pathway leading to attenuation of depressive-like behaviors can be a novel therapeutic mechanism for treating depression.
6.Korean Guidelines for Postpolypectomy Colonoscopic Surveillance: 2022 revised edition
Su Young KIM ; Min Seob KWAK ; Soon Man YOON ; Yunho JUNG ; Jong Wook KIM ; Sun-Jin BOO ; Eun Hye OH ; Seong Ran JEON ; Seung-Joo NAM ; Seon-Young PARK ; Soo-Kyung PARK ; Jaeyoung CHUN ; Dong Hoon BAEK ; Mi-Young CHOI ; Suyeon PARK ; Jeong-Sik BYEON ; Hyung Kil KIM ; Joo Young CHO ; Moon Sung LEE ; Oh Young LEE ; ; ;
Intestinal Research 2023;21(1):20-42
Colonoscopic polypectomy is effective in decreasing the incidence and mortality of colorectal cancer (CRC). Premalignant polyps discovered during colonoscopy are associated with the risk of metachronous advanced neoplasia. Postpolypectomy surveillance is the most important method for managing advanced metachronous neoplasia. A more efficient and evidence-based guideline for postpolypectomy surveillance is required because of the limited medical resources and concerns regarding colonoscopy complications. In these consensus guidelines, an analytic approach was used to address all reliable evidence to interpret the predictors of CRC or advanced neoplasia during surveillance colonoscopy. The key recommendations state that the high-risk findings for metachronous CRC following polypectomy are as follows: adenoma ≥10 mm in size; 3 to 5 (or more) adenomas; tubulovillous or villous adenoma; adenoma containing high-grade dysplasia; traditional serrated adenoma; sessile serrated lesion containing any grade of dysplasia; serrated polyp of at least 10 mm in size; and 3 to 5 (or more) sessile serrated lesions. More studies are needed to fully comprehend the patients who are most likely to benefit from surveillance colonoscopy and the ideal surveillance interval to prevent metachronous CRC.
7.Cardiac arrest due to coronary vasospasm after sugammadex administration -a case report-
Ki Yung BOO ; Sang Hyun PARK ; Sun Kyung PARK ; Changrock NA ; Hyun Jung KIM
Korean Journal of Anesthesiology 2023;76(1):72-76
Clinicians should pay close attention to the potential risk of coronary vasospasm, even cardiac arrest, after sugammadex administration.
8.Effects of Abdominal Massage for Preventing Acute Postoperative Constipation in Hip Fractures: A Prospective Interventional Study
Yong-Gum PARK ; Boo Seop KIM ; Kyu-Tae KANG ; Yong-Chan HA
Clinics in Orthopedic Surgery 2023;15(4):546-551
Background:
This prospective randomized controlled study aimed to determine the effects of abdominal massage on constipation management in elderly patients with hip fractures.
Methods:
From August 2017 to December 2018, patients aged above 65 years with hip fractures (n = 88) were randomly assigned to a massage group that received a bowel massage (n = 48) or a control group that did not receive a bowel massage (n = 40). Patients in the bowel massage group received a bowel massage from a trained caregiver after breakfast at approximately 9:00 AM for an hour. On admission, 5 days after surgery, and on the day of discharge, the patient’s normal and actual defecation pattern, stool consistency, and any problems with defecation were assessed through a structured interview. The questionnaire comprising the Bristol Stool Scale, patient assessment of constipation, time to defecation, medication for defecations, failure to defecate, cause of admission, admission period, and date of surgery were recorded. Statistical analyses were performed 5 days after surgery and on the day of discharge.
Results:
The mean age of the study cohort was 81.4 years (range, 65–99 years). The number of constipation remedies was significantly lower in the massage group than in the control group on postoperative day (POD) 5 and at discharge (9 vs. 15, p = 0.049 and 6 vs. 11, p = 0.039, respectively). The number of defecation failures was significantly lower in the massage group than in the control group (10 vs. 17, p = 0.028) on POD 5. However, the number of defecation failures at discharge was not significantly different between the two groups ( p = 0.131). The development of postoperative ileus ( p = 0.271) and length of hospital stay ( p = 0.576) were not different between the groups.
Conclusions
The number of constipation remedies was significantly lower in the massage group than in the control group on POD 5 and discharge, and the number of defecation failures was significantly lower in the massage group than in the control group on POD 5. Therefore, abdominal massage may be considered as an independent nursing initiative for constipation management.
9.Corrigendum: Diffusion-Weighted Magnetic Resonance Imaging for Breast Cancer Screening in High-Risk Women: Design and Imaging Protocol of a Prospective Multicenter Study in Korea
Hee Jung SHIN ; Su Hyun LEE ; Vivian Youngjean PARK ; Jung Hyun YOON ; Bong Joo KANG ; Bo La YUN ; Tae Hee KIM ; Eun Sook KO ; Boo-Kyung HAN ; A Jung CHU ; Seo Young PARK ; Hak Hee KIM ; Woo Kyung MOON
Journal of Breast Cancer 2022;25(2):145-146
10.The Process of Situational Awareness Embodiment of Perioperative Scrub Nurses: An Analytic Induction Approach
Journal of Korean Academy of Fundamental Nursing 2022;29(1):94-104
Purpose:
This study aimed to identify and explore how perioperative scrub nurses embody their situational awareness to elucidate the association between research and application.
Methods:
This qualitative study employed an analytical induction approach. The analytical method reconstructed by Bloor (1978) and modified by Johnson (2004) was used to investigate and analyze the phenomenon in clinical practice. The study was conducted from January 12 to May 20, 2019. Data were collected using semi-structured interviews; the study subjects included 12 perioperative scrub nurses working at three university hospitals.
Results:
Perioperative scrub nurses embodied situational awareness by comparing and identifying general and abnormal situations throughout surgical procedures, setting priorities in their tasks, responding to situations according to the degree of emergency in the operating room, and developing an integrated view. Perioperative scrub nurses embodied situational awareness through typical patterns involving empirical cases based on experiences, apprenticeship-oriented training, information exchange among surgical team members, and self-directed simulation. Professional responsibility and the level of surgical emergency played an essential role in embodying these patterns.
Conclusion
These findings will provide practical categories that will contribute to the development of strategies for practical education of novice perioperative scrub nurses and nursing students.

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