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Comparison of ultrasonography of neck and stomach to detect air entry into stomach during start of general anaesthesia .

Comparison of real-time cervical oesophageal ultrasonography and gastric-antral ultrasonography to detect gastric insufflation during face-mask ventilation under general anaesthesia- A prospective observational study.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2019/10/021518
Enrollment
89
Registered
2019-10-03
Start date
Unknown
Completion date
Unknown
Last updated
2021-11-24

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

Conditions

Health Condition 1: R00-R99- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

Interventions

None listed

Sponsors

Jawaharlal Institute of Postgraduate Medical Education and Research
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Patients more than 18 years of age, undergoing elective surgery under general anaesthesia with endotracheal tube, in JIPMER-Puducherry.

Exclusion criteria

Exclusion criteria: 1.Patients requiring rapid-sequence induction. 2.Patients with naso-gastric tube in-situ. 3. Patients with neck swelling, deformities of neck preventing upper oesophageal ultrasound. 4. Patients with oesophageal/gastric pathology/GERD. 5.Patients with air in gastric antrum prior to FMV

Design outcomes

Primary

MeasureTime frame
To compare the incidence of â??comet-tailâ?? artefact with real-time cervical oesophageal ultrasonography and gastric antral ultrasonography. Timepoint: â??Comet-tailâ?? artefacts, a marker of air entry intro the oesophagus will be looked for during face mask ventilation for 3 minutes during induction of general anaesthesia . This will be compared with the â??comet-tailâ?? artefacts in the gastric antrum after the placement of endotracheal tube.Since air has to traverse through oesophagus before entering stomach, a better alternative and more sensitive method would be to look for oesophageal insufflation during face mask ventilation.—

Secondary

MeasureTime frame
To identify the lowest peak airway pressure at which â??comet-tailâ?? artefacts appear in the oesophagus during facemask ventilation.Timepoint: This will be looked for in 3 minutes of face mask ventilation during induction.Ability to do face-mask ventilation will be tested using pressure-controlled mode of ventilation with an inspiratory pressure of 10cmH2O, the inspiratory pressure will be stepped up or down in increments of 2 cmH2O to achieve a target tidal volume of 8 ml.kg-1.Lowest peak airway pressure at which comet tail artefacts appear will be noted.—

Countries

India

Contacts

Public ContactDr A Vasudevan

Jawaharlal Institute of Postgraduate Medical Education and Research

jipmervasu@gmail.com9894444102

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026