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Effect of Video Monitor Size on Adenoma Detection Rate

Effect of Video Monitor Size on Adenoma Detection Rate

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01952418
Enrollment
1805
Registered
2013-09-30
Start date
2013-10-31
Completion date
2015-06-30
Last updated
2017-05-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colon Adenoma

Brief summary

The goal of this study is to compare the adenoma detection rate achieved while using either a 24 video monitor or a 32 video monitor.

Detailed description

Gastrointestinal endoscopists perfoming routine endoscopic procedures and their patients will be randomized to one of two endoscopy rooms at the MGH Ambulatory Endoscopy Center at Charles River Plaza. The two rooms will have identical equipment with the exception that one room will have the current standard size video monitor (NDS 26) used at this facility while the other room will have a larger video monitor (NDS 32). The ADR achieved by each physician in each room will be compared.

Interventions

DEVICEMonitor size

Subjects will be randomized to perform their colonoscopy procedures while viewing a large (32) video monitor or the standard (24) video monitor.

Sponsors

Massachusetts General Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
SINGLE (Subject)

Masking description

15 endoscopists and 1805 patients on which procedures were performed were randomly assigned to each room.

Eligibility

Sex/Gender
ALL
Age
25 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Physician endoscopist performing colonoscopy at Massachusetts General Hospital GI Endoscopy Unit * Patients receiving these procedures at Massachusetts General Hospital GI Endoscopy Unit

Exclusion criteria

* Refusal to participate

Design outcomes

Primary

MeasureTime frameDescription
Adenoma Detection Rate (All Indications)within 2 weeks (range of 1 day-14 days) of the endoscopyNumber of patients with adenoma detected
Adenoma Detection Rate (Screening Exams Only)within 2 weeks (range of 1 day-14 days) of the endoscopyNumber of patients with adenoma detected

Secondary

MeasureTime frameDescription
Polyp Detection Rate (All Indications)recorded during endoscopy (immediate)Number of patients with polyps detected
Polyp Detection Rate (Screening Exams Only)recorded during endoscopy (immediate)Number of patients with polyps detected

Countries

United States

Participant flow

Participants by arm

ArmCount
Standard Monitor (24)
Endoscopists in this arm will perform colonoscopy using the standard size video monitor (24).
910
Large Monitor (32)
Endoscopists in this arm will perform colonoscopy using the large size video monitor (32).
895
Total1,805

Baseline characteristics

CharacteristicStandard Monitor (24)Large Monitor (32)Total
Age, Continuous54.9 years
STANDARD_DEVIATION 11.8
55.8 years
STANDARD_DEVIATION 11.5
55.3 years
STANDARD_DEVIATION 11.7
Region of Enrollment
United States
910 participants895 participants1805 participants
Sex: Female, Male
Female
521 Participants498 Participants1019 Participants
Sex: Female, Male
Male
389 Participants397 Participants786 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 9100 / 895
serious
Total, serious adverse events
0 / 9100 / 895

Outcome results

Primary

Adenoma Detection Rate (All Indications)

Number of patients with adenoma detected

Time frame: within 2 weeks (range of 1 day-14 days) of the endoscopy

Population: all indications

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Standard Monitor (24)Adenoma Detection Rate (All Indications)264 Participants
Large Monitor (32)Adenoma Detection Rate (All Indications)271 Participants
Primary

Adenoma Detection Rate (Screening Exams Only)

Number of patients with adenoma detected

Time frame: within 2 weeks (range of 1 day-14 days) of the endoscopy

Population: screening exams only

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Standard Monitor (24)Adenoma Detection Rate (Screening Exams Only)137 Participants
Large Monitor (32)Adenoma Detection Rate (Screening Exams Only)157 Participants
Secondary

Polyp Detection Rate (All Indications)

Number of patients with polyps detected

Time frame: recorded during endoscopy (immediate)

Population: all indications

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Standard Monitor (24)Polyp Detection Rate (All Indications)367 Participants
Large Monitor (32)Polyp Detection Rate (All Indications)424 Participants
Secondary

Polyp Detection Rate (Screening Exams Only)

Number of patients with polyps detected

Time frame: recorded during endoscopy (immediate)

Population: screening exams only

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Standard Monitor (24)Polyp Detection Rate (Screening Exams Only)137 Participants
Large Monitor (32)Polyp Detection Rate (Screening Exams Only)157 Participants

Source: ClinicalTrials.gov · Data processed: Mar 3, 2026