Endoscopy 2018; 50(04): S144-S145
DOI: 10.1055/s-0038-1637466
ESGE Days 2018 ePosters
Georg Thieme Verlag KG Stuttgart · New York

SINGLE INCISION NEEDLE KNIFE (SINK) BIOPSY: A SIMPLE TECHNIQUES FOR THE TISSUE SAMPLING OF SUBEPITHELIAL TUMORS

JJ Park
1   Korea University Guro Hospital, Gastroenterology, Seoul, Korea, Republic of
,
KN Shim
2   Ewha Womans University, College of Medicine, Department of Internal Medicine, Seoul, Korea, Republic of
,
JS Koh
1   Korea University Guro Hospital, Gastroenterology, Seoul, Korea, Republic of
,
MK Joo
1   Korea University Guro Hospital, Gastroenterology, Seoul, Korea, Republic of
,
BJ Lee
1   Korea University Guro Hospital, Gastroenterology, Seoul, Korea, Republic of
,
HJ Chun
3   Korea University Anam Hospital, Gastroenterology, Seoul, Korea, Republic of
,
SW Lee
4   Korea University Ansan Hospital, Gastroenterology, Kyungki-do, Korea, Republic of
,
YT Bak
1   Korea University Guro Hospital, Gastroenterology, Seoul, Korea, Republic of
› Institutsangaben
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Publikationsverlauf

Publikationsdatum:
27. März 2018 (online)

Auch verfügbar aufeRef
 

Aims:

Subepithelial tumors (SETs) in gastrointestinal (GI) tract are usually found incidentally during routine endoscopy. SETs in the GI tract can be challenging to diagnose accurately using standard imaging and tissue sampling techniques. Single incision needle knife (SINK) biopsy is an alternative approach of tissue sampling which employs the use of needle knife incision of the mucosa overlying the SET, followed by deep tissue biopsy with standard endoscopic biopsy forceps. We aimed in this study to evaluate SINK biopsy as a diagnostic techniques.

Methods:

We retrospectively reviewed the results and outcomes of SINK biopsy performed by single expert endoscopist at our center.

Results:

A total of 20 patients were included; mean age was 59.3 ± 11.61 years (range 40 – 85 years), and male to female ratio was 1:1. Among them, 9 (45%) were in duodenum, 10 (50%) in stomach, and 1 (5%) in colon. Mean size of the SETs was 13.6 ± 5.6 mm. Mean procedure time was 27.3 ± 14.7 minutes, and no procedure-related major complications occurred. Accurate diagnosis of SETs by SINK biopsy was obtained in 18 of 20 cases (diagnostic yield: 90.0%). Biopsy results were heterotopic pancreas (7, 35%), leiomyoma (4, 20%), gastrointestinal stromal tumor (3, 15%), inflammatory fibroid (2, 10%), schwannoma (1, 5%), lipoma (1, 5%) and inconclusive (2, 10%). We analyzed the diagnostic results according to the biopsy order; among the 15 cases, 10 cases (66.7%) were diagnosed between 1st-4th biopsies, 5 (33.3%) cases were between 5th-10th biopsies.

Conclusions:

SINK biopsy appears to be an easy, safe, and effective technique for definitive tissue sampling of SETs. SINK method should be consider before deciding treatment options. Diagnostic yield was higher in 1st-4th biopsies than 5th-10th biopsies.