Technical feasibility of a newly designed bendable forceps for difficult endoscopic tissue samplings (with video).
Surg Endosc
; 34(10): 4692-4701, 2020 10.
Article
en En
| MEDLINE
| ID: mdl-32661712
ABSTRACT
BACKGROUND:
Biopsies with conventional forceps beyond the operating range are difficult and cumbersome. Thus, we developed a new bendable forceps for improved access to gastrointestinal lesions and evaluated its technical feasibility.METHODS:
A bendable forceps was constructed with two channels and a two-stage knob. The bending motion-related structures were designed to improve the range of motion. For the evaluation of the forceps, we used 2 gastrointestinal simulators an ex vivo porcine model, and an in vivo porcine model with some difficult endoscopic biopsy cases. All evaluations were performed by 5 expert endoscopists and an expert pathologist.RESULTS:
Compared with the conventional forceps, the bendable forceps had greater efficacy in the simulator (6.2 ± 0.4 vs. 1.96 ± 0.2, p < 0.001), ex vivo porcine model (6.33 ± 0.52 vs. 4.25 ± 0.89, p < 0.001), and in vivo porcine model (6.33 ± 0.52 vs. 4.25 ± 0.89, p < 0.001); greater safety in the simulator (1.92 ± 0.13 s vs. 4.88 ± 0.50 s, p < 0.001), ex vivo porcine model (2.02 ± 0.15 s vs 4.66 ± 0.27 s, p < 0.001), and in vivo porcine model (2.02 ± 0.15 s vs. 4.08 ± 0.70 s, p = 0.002); and larger specimens in the ex vivo porcine model (3.92 ± 0.03 mm vs. 3.85 ± 0.07 mm, p = 0.020).CONCLUSIONS:
This study showed that compared with the conventional forceps, the bendable forceps was effective and safe to use for accessing difficult lesions in the three models. We believe that the bendable forceps serves as a useful supplementary diagnostic tool for accessing difficult lesions. However, further validation of its usefulness in the human body is needed.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Instrumentos Quirúrgicos
/
Biopsia
/
Cirugía Asistida por Video
/
Endoscopía
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Surg Endosc
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
/
GASTROENTEROLOGIA
Año:
2020
Tipo del documento:
Article