Establishing an animal model for peritoneal catheter malfunction caused by omental wrapping using negative pressure suction: in vitro and in vivo exploration
| Autor: | Xiaoxue Weng, Lingling Yan, Jiejian Chen, Qingyi Shen, Miaohua Qiu, Qiang Wang, Jingbao Yang, Wen Wen, Guoqing Yu |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Renal Failure, Vol 46, Iss 2 (2024) |
| Druh dokumentu: | article |
| ISSN: | 0886022X 1525-6049 0886-022X |
| DOI: | 10.1080/0886022X.2024.2369695 |
| Popis: | Background This study aims to establish a simplified and effective animal model of catheter malfunction caused by omental wrapped using negative pressure suction.Method The peritoneal dialysis catheter outlet was linked to a negative-pressure (0-75mmHg) suction pump to intensify the negative pressure. Different negative pressures were tested for model construction in vitro. In vivo, a model of peritoneal catheter malfunction caused by omental wrapped was constructed in five beagles after catheter placement. Catheter drainage conditions and related complications were monitored before and after the model establishment.Results In the vitro experiment, the overall success rate of constructed models was 90% (36/40). The total malfunction rate was higher in 62.5 mmHg (10/10) and 75 mmHg (10/10) than in 12.5 mmHg (8/10) and 37.5 mmHg (8/10). The outflow velocity of dialysate at 62.5 mmHg was significantly lower than that at 12.5 mmHg and 37.5 mmHg, without a statistically significant difference compared to 75 mmHg. In the in vivo experiment, catheter outflow velocity increased, and residual fluid volume decreased after omental wrapped (99.6 ± 6.7 ml/min vs. 32.6 ± 4.6 ml/min at initial five minutes, p |
| Databáze: | Directory of Open Access Journals |
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