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Table 2 Stent characteristics of the included studies

From: Covered versus uncovered self-expandable metallic stents for palliation of malignant gastric outlet obstruction: a systematic review and meta-analysis

Study/author

Group

Stent type

Stent material

Stent diameter (mm)

Stent length (cm)

Covered material

Yu Kyung Cho

Covered

NR

Nickel-Titanium

NR

NR

NR

Uncovered

 

Nickel-Titanium

   

Jong Pil Im

Covered

NR

 

18

9/11

 

Uncovered

 

NR

18

11/12/16

NR

Seungmin Bang

Covered

Niti-S

NR

20/22

6-15

 

Uncovered

Niti-S

 

20/22

6-15

PU

Iruru Maetani

Covered

Ultraflex

NR

18/23

10/12/15

 

Uncovered

Ultraflex

 

18/23

10/12/15

PTFE

Kee Myung Lee

Covered

Niti-S

Nitinol

18

6/8/10

 

Uncovered

Niti-S

Nickel-Titanium

18

6/8/10

PU

Chan Gyoo Kim

Covered

Niti-S

Nitinol

18/20

8/10/12

 

Uncovered

Wallstent/Wallflex

Elgiloy/Nitinol

20/22

6/9/12

PTFE

Chan Ik Park

Covered

Niti-s

Nitinol

NR

6-16

 

Uncovered

Wallstent/Hanaro

Elgiloy/Nitinol

 

6-16

PU

Iruru Maetani

Covered

Niti-S

Nitinol

20

  

Uncovered

Comvi

Nitinol

20

NR

PTFE

Sang Myung Woo

Covered

Niti-s/Bona

 

18-22

4-12

 

Uncovered

Niti-s/Bona/Wallflex

NR

18-22

4-12

NR

  1. PTEF, polytetrafluoroethylene; PU, polyurethane.
  2. Niti-S (Taewoon Inc. South Korea); Bona (Standard SciTech Inc. Seoul, Korea).
  3. Hanaro (M.I. Tech. Seoul, Korea).
  4. Wallflex (Boston Scientific, USA); Wallstent (Boston Scientific, USA).
  5. Ultraflex (Boston Scientific, USA).