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Video Assisted System for Nasogastric Tube Placement

Clinical Study of a Real-time Video-assisted System for Nasogastric Tube Placement

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05486286
Enrollment
30
Registered
2022-08-03
Start date
2022-08-02
Completion date
2023-05-10
Last updated
2023-07-25

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

Conditions

Enteral Nutrition

Brief summary

A live-video system (NCKU-NG system) was developed to assist in the placement of an enteral feeding tube. This system consists of a camera and light source that can be inserted into the commercial NG tube to view live video during feeding tube placement. Manual air insufflation can be used to aid feeding tube placement and improve visualization of anatomic landmarks. After the procedure, an abdominal X-ray is done to confirm the position of the feeding tube.

Detailed description

This study used 15 Fr feeding tubes with an outer diameter of 4.5 mm and an inner diameter of 3.5 mm (Freka®, Bad Homburg, Germany). Patients were advised to maintain nothing by mouth (NPO) for at least four hours before the placement. An insufflation device (Olympus, Tokyo, Japan) was utilized whenever necessary to facilitate feeding tube placement or confirm its position. In cases where misplacement into the trachea was detected, the feeding tube was carefully withdrawn and reinserted into stomach. After successful insertion, all feeding tubes were securely fixed with tape on the nose. The position of NG tube was reconfirmed by traditional auscultation. Chest X-ray imaging was performed for every patient after the NG tube placement to verify the positioning of the tube by the primary care physician. Time to visual confirmation of stomach position, for completing tube placement with/without air insufflation were recorded. Numbers of attempts, vocal cord/trachea visualization and air insufflation were also recorded. A study assistant monitored the patient's condition for the subsequent seven days, recording any observed complications or adverse events.

Interventions

A live-video system (NCKU-NG system) was developed to assist in the placement of enteral feeding tubes. This system consists of a camera and light source that can be inserted into the commercial NG tube to view live video during feeding tube placement. Manual air insufflation may aid feeding tube placement and improve visualization of anatomic landmarks. After the procedure, an abdominal X-ray is done to confirm the position of the feeding tube.

Sponsors

National Cheng-Kung University Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients (\>20 y/o) requiring enteral feeding and/or medication with an expected duration longer than 48 hours were eligible for inclusion.

Exclusion criteria

* Patients can't receive an X-ray after the procedure to confirm tube position (e.g. pregnancy) * Patients with hemodynamic instability (defined as mean arterial pressure \<65 mmHg) * Patients with a history of basal skull fracture.

Design outcomes

Primary

MeasureTime frameDescription
The successful rate (percent) of gastric placement of feeding tubesup to 24 hours after chest X-rayThe successful rate (percent) of gastric placement of feeding tubes using the video-assistance system (NCKU-NG system), was assessed by X-ray.

Secondary

MeasureTime frameDescription
opearator evaluation (Liker scale)immediately after procedureThe operator will evaluate the 1) feasibility of video assistance placement, 2) imaging clearance, 3) whether is it easy to remove the camera probe after reaching the stomach, 4) whether is it easy to confirm the gastric position. All the evaluation is cored on a Liker scale (1-5, whether higher scores mean a better outcome)

Other

MeasureTime frameDescription
Procedure time needed (minutes)Immediately after procedureThe time to insertion of NG tube (from the nose insertion till reaching the stomach)
number of patients with visualization of the trachea (n, %)immediately after procedure.Evaluate how many patient has trachea miss-insertion under this video-assistance

Countries

Taiwan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026