The Impact of One Week of Pre-Stenting on Porcine Ureteral Luminal Circumference

医学 扩张器 输尿管 输尿管镜检查 周长 支架 泌尿科 外科 几何学 数学
作者
Pengbo Jiang,Andrew S. Afyouni,Andrew Brevik,Akhil Peta,Tori King,Samantha Dinh,Maged Ayad,Krista Larson,Luke Limfuenco,Christina Kosmala,Hossein Sharifi,Roshan M. Patel,Jaime Landman,Ralph V. Clayman
出处
期刊:Journal of Endourology [Mary Ann Liebert, Inc.]
卷期号:36 (7): 885-890 被引量:8
标识
DOI:10.1089/end.2021.0771
摘要

Objectives: Larger ureteral access sheaths (UASs) have the potential to improve ureteroscopic stone removal outcomes but are often avoided by surgeons because of concerns of ureteral injury. Using our novel UAS force sensor and previously defined force thresholds for ureteral injury, we sought to evaluate the impact of 1 week of stenting on the maximum safe dilation of ureteral luminal circumference. Methods: Twelve juvenile female Yorkshire pigs (24 ureters) were evaluated. The inner (i.e., luminal) circumference of each ureter was determined using Cook urethral dilators ranging from 8F to 24F in 2F increments, 37 cm in length. Each dilator was sequentially passed while applying the UAS force sensor to measure insertion force before and after 1 week of stent placement. Each ureter was randomized to receive either a 4.7F or 7.0F stent (20 cm). Maximum ureteral luminal circumference was defined as effective passage of the dilator to the ureteropelvic junction with ≤6 newtons (N) of force (the force threshold previously defined by porcine and clinical studies to avoid ureteral damage). After passage of the largest dilator at 6 N, flexible ureteroscopy was performed and a post-ureteroscopic lesion scale (PULS) was recorded. Results: After 1 week of stent placement, the median ureteral luminal circumference increased to 15F representing a mean increase of 3.8F ± 2.8F (p < 0.001). Twenty-one (88%) of the pre-stented ureters had an increase in luminal circumference, with 12 ureters (50%) dilated to ≥16F (p = 0.032), 6 ureters (25%) dilated to ≥18F, and in 2 cases a maximum size of 24F was recorded. The PULS grade was ≤2 in all cases, indicating no high-grade ureteral injuries. Laterality and stent size did not impact ureteral luminal circumference after pre-stenting (p = 0.232 and p = 0.337, respectively). Conclusions: One week of ureteral stenting resulted in nearly a 4F increase in the luminal circumference of porcine ureters.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
陈陈发布了新的文献求助10
刚刚
1秒前
1秒前
辉辉发布了新的文献求助10
2秒前
su完成签到 ,获得积分10
3秒前
3秒前
科目三应助乌拉挂机采纳,获得10
4秒前
4秒前
无限映波发布了新的文献求助10
6秒前
陈陈完成签到,获得积分10
7秒前
研究僧发布了新的文献求助10
8秒前
赘婿应助中原第一深情采纳,获得10
10秒前
xixi发布了新的文献求助30
11秒前
王者归来发布了新的文献求助200
11秒前
11秒前
12秒前
量子星尘发布了新的文献求助10
13秒前
完美世界应助jing采纳,获得30
13秒前
李治稳发布了新的文献求助10
16秒前
18秒前
liu发布了新的文献求助10
19秒前
21秒前
严晓博完成签到,获得积分10
22秒前
22秒前
zhoup发布了新的文献求助20
23秒前
zzl-2000完成签到,获得积分10
23秒前
boshi发布了新的文献求助10
23秒前
xiaowei发布了新的文献求助10
24秒前
严晓博发布了新的文献求助10
24秒前
jing发布了新的文献求助30
25秒前
25秒前
Jzhu96发布了新的文献求助10
26秒前
26秒前
CC完成签到,获得积分10
27秒前
田様应助老迟到的沛萍采纳,获得10
27秒前
斯文静竹完成签到,获得积分10
27秒前
花海完成签到,获得积分10
28秒前
28秒前
wddddd发布了新的文献求助10
30秒前
ChatGPT发布了新的文献求助10
31秒前
高分求助中
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
Effective Learning and Mental Wellbeing 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3975339
求助须知:如何正确求助?哪些是违规求助? 3519670
关于积分的说明 11199199
捐赠科研通 3256002
什么是DOI,文献DOI怎么找? 1798043
邀请新用户注册赠送积分活动 877386
科研通“疑难数据库(出版商)”最低求助积分说明 806305