Significance of Stent Abutment in Gastroduodenal Stent Placement for Gastric Outlet Obstructions.
J Vasc Interv Radiol
; 28(8): 1147-1153, 2017 Aug.
Article
em En
| MEDLINE
| ID: mdl-28291717
ABSTRACT
PURPOSE:
To evaluate the frequency, severity, and clinical significance of stent abutment (SA) after gastroduodenal stent placement in patients with gastric outlet obstruction caused by unresectable gastric cancer. MATERIALS ANDMETHODS:
A retrospective study was conducted in a single tertiary referral university hospital to identify the incidence and clinical significance of SA in 318 patients who underwent self-expandable metallic stent placement. SA was defined as abutment of the distal end of the stent to the duodenal wall and/or superior duodenal flexure. The outcomes included technical and clinical success, complications, repeat intervention, stent patency, and survival.RESULTS:
A total of 318 patients, 107 with SA (33.6%) and 211 without, were included. SA occurred partially (n = 64; 59.8%) and completely (n = 43; 40.2%). The technical and clinical outcomes and survival were similar in the groups with and without SA. Food impaction and resultant repeat intervention rates were higher in the SA group than in the non-SA group (P < .001 and P < .001, respectively), and were associated with complete SA (P = .007). Stent patency rate was lower in the SA group than in the non-SA group (P = .003).CONCLUSIONS:
SA was associated with increased food impaction, resulting in a greater incidence of stent malfunction and shorter stent patency compared with a lack of SA. The concept of SA may be useful for the improvement of stent patency and avoidance of food impaction.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Gástricas
/
Falha de Prótese
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Stents
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Obstrução da Saída Gástrica
Tipo de estudo:
Observational_studies
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Risk_factors_studies
Limite:
Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
J Vasc Interv Radiol
Assunto da revista:
ANGIOLOGIA
/
RADIOLOGIA
Ano de publicação:
2017
Tipo de documento:
Article