{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T10:42:11Z","timestamp":1777891331985,"version":"3.51.4"},"reference-count":17,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2023,4,28]],"date-time":"2023-04-28T00:00:00Z","timestamp":1682640000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["THC"],"published-print":{"date-parts":[[2023,4,28]]},"abstract":"<jats:p>BACKGROUND: There is a need for an improved version of the implantable catheter for malignant ascites in the abdominal cavity. OBJECTIVE: New implantable catheters have been developed that drain ascites from the abdominal cavity to the bladder by applying pressure. Based on pigtail catheters, these newly designed catheters have silicone membranes and apertures. METHODS: Experimental instruments controlled flow rates and water level to observe changes of the activation pressure and its cycle time along flow rates and turns of catheters. Furthermore, various normality tests, difference tests and non-parametric tests were investigated to observe statistical validity. RESULTS: Cycle times were significantly affected by flow rate (3\/4 cases of p&lt; 0.05). The effects of flow rate on activation pressure, however, were not significant (1\/4 case of p&lt; 0.05). Cycle times were not significantly affected by the number of turns of the catheter (3\/8 cases of p&lt; 0.05). In contrast, the effects of the turns on activation pressure were significant (5\/8 cases of p&lt; 0.05). CONCLUSION: Overall, there was no significant difference between cycle times for 1.5 turns and 2.0 turns of catheters. In addition, catheters with 1.5 turns have a lower activation pressure than catheters with 2.0 turns. It is possible to customize catheters based on the ascites excretion and urination rates of various terminal patients.<\/jats:p>","DOI":"10.3233\/thc-236019","type":"journal-article","created":{"date-parts":[[2023,4,7]],"date-time":"2023-04-07T11:45:06Z","timestamp":1680867906000},"page":"223-234","source":"Crossref","is-referenced-by-count":1,"title":["Time-efficient implantable catheters for draining malignant ascites in terminal cancer patients"],"prefix":"10.1177","volume":"31","author":[{"given":"Hyeonjong","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering, Korea Maritime and Ocean University, Busan, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Soyeong","family":"Bae","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Korea Maritime and Ocean University, Busan, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ye-Jin","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Haeundae Paik Hospital, College of Medicine, Inje University, Busan, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"So-Young","family":"Jung","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Haeundae Paik Hospital, College of Medicine, Inje University, Busan, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jin-Han","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Pulmonology, Haeundae Paik Hospital, Inje University, Busan, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Si-Hyung","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Nephrology, Haeundae Paik Hospital, Inje University, Busan, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Il-Hwan","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Oncology, Haeundae Paik Hospital, College of Medicine, Inje University, Busan, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Junghyuk","family":"Ko","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Korea Maritime and Ocean University, Busan, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","reference":[{"issue":"5","key":"10.3233\/THC-236019_ref1","doi-asserted-by":"crossref","first-page":"926","DOI":"10.1093\/annonc\/mdw027","article-title":"The global decrease in cancer mortality: Trends and disparities","volume":"27","author":"Hashim","year":"2016","journal-title":"Annals of Oncology."},{"issue":"3","key":"10.3233\/THC-236019_ref2","first-page":"145","article-title":"Colorectal cancer statistics, 2020","volume":"70","author":"Siegel","year":"2020","journal-title":"CA: A Cancer Journal for Clinicians."},{"issue":"4","key":"10.3233\/THC-236019_ref3","doi-asserted-by":"crossref","first-page":"511","DOI":"10.1002\/pon.5596","article-title":"Perceptions of cancer as a death sentence: Tracking trends in public perceptions from 2008 to 2017","volume":"30","author":"Moser","year":"2021","journal-title":"Psycho-Oncology."},{"issue":"4","key":"10.3233\/THC-236019_ref4","doi-asserted-by":"crossref","first-page":"305","DOI":"10.1177\/0269216307077817","article-title":"Implementing a resuscitation policy for patients at the end of life in an acute hospital setting: Qualitative study","volume":"21","author":"Robinson","year":"2007","journal-title":"Palliat Med."},{"issue":"2","key":"10.3233\/THC-236019_ref5","doi-asserted-by":"crossref","first-page":"206","DOI":"10.1200\/JCO.2008.17.7568","article-title":"Phase II study of an outpatient palliative care intervention in patients with metastatic cancer","volume":"27","author":"Follwell","year":"2009","journal-title":"J Clin Oncol."},{"issue":"1","key":"10.3233\/THC-236019_ref6","doi-asserted-by":"crossref","first-page":"139","DOI":"10.1016\/j.ahj.2010.03.038","article-title":"Hospice, opiates, and acute care service use among the elderly before death from heart failure or cancer","volume":"160","author":"Setoguchi","year":"2010","journal-title":"American Heart Journal."},{"issue":"1","key":"10.3233\/THC-236019_ref7","doi-asserted-by":"crossref","first-page":"6","DOI":"10.1002\/bjs.1800830104","article-title":"Malignant ascites","volume":"83","author":"Parsons","year":"1996","journal-title":"British Journal of Surgery."},{"issue":"4","key":"10.3233\/THC-236019_ref8","doi-asserted-by":"crossref","first-page":"273","DOI":"10.1038\/nrc3432","article-title":"Meeting the challenge of ascites in ovarian cancer: New avenues for therapy and research","volume":"13","author":"Kipps","year":"2013","journal-title":"Nat Rev Cancer."},{"issue":"6","key":"10.3233\/THC-236019_ref10","doi-asserted-by":"crossref","first-page":"644","DOI":"10.1097\/00000658-198606000-00009","article-title":"Malignant ascites. 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