Prospective evaluation of a new ultrathin one-plane bending videoendoscope for transnasal EGD: a comparative study on performance and tolerance.
BACKGROUND
EGD, with small-diameter endoscopes, is routinely performed via a nasal route in adults.


OBJECTIVE
To evaluate a new ultrathin one-plane bending videoendoscope for transnasal EGD.


METHODS
Single center, prospective, randomized study.


METHODS
Edouard Herriot University Hospital.


METHODS
A total of 122 outpatients (median age, 49 years [18-81 years], 62 men and 60 women) were randomized into 2 groups (on a 2:1 basis) according to the endoscope used: (1) a standard 5.9-mm-diameter videoendoscope (80 patients) or (2) a one-plane bending high resolution 4.9-mm-diameter videoendoscope (42 patients).


METHODS
The operator assessed the quality of examination by using standard scores or a 100-mm visual scale. Patients quantified tolerance by using a 100-mm visual scale.


RESULTS
The duration of the procedure was the same in each group. The feasibility of transnasal insertion was significantly higher when using the 4.9-mm-diameter endoscope (97.61% [41/42 patients] vs 88.75% [71/80 patients], P<.05). The tolerance of EGD was significantly better in the group with the small videoendoscope, for global discomfort, pain, belching, and bloating. Similarly, acceptation of a new EGD in similar conditions was higher in group 2 (92.9% vs 80%, P<.05). The quality of examination (global, lavage, inflation, suction) was not different between the 2 groups.


CONCLUSIONS
Evaluation of patient tolerance and quality of examination was based on subjective features.


CONCLUSIONS
Availability of a new ultrathin one-plane bending videoendoscope represents a major technical improvement for transnasal EGD, which significantly improves both feasibility and patient tolerance, without affecting the quality of the examination.
Dumortier
Jérôme
J
Department of Digestive Diseases, Hôpital Edouard Herriot, Lyon, France.
Josso
Claire
C
Roman
Sabine
S
Fumex
Fabien
F
Lepilliez
Vincent
V
Prost
Bénédicte
B
Lot
Muriel
M
Guillaud
Olivier
O
Petit-Laurent
Fabien
F
Lapalus
Marie-George
MG
Ponchon
Thierry
T
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D020776:Endoscopes, Gastrointestinal / Q000009:adverse effects; D016145:Endoscopy, Digestive System / Q000009:adverse effects / Q000295:instrumentation*; D004867:Equipment Design; D005240:Feasibility Studies; D005260:Female; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009296:Nasal Cavity; D017060:Patient Satisfaction; D011446:Prospective Studies; D020535:Video-Assisted Surgery / Q000009:adverse effects / Q000295:instrumentation*