Comparison of expired tidal volumes during facemask ventilation by new anesthesia trainees before and after neuromuscular blockade administration in patients with predicted non-difficult airways

FMV in new anesthesia trainees before and after rocuronium administration

Status

Unknown

Phases

Early Phase 1

Study type

Interventional

Source

TCTR

Registry ID

TCTR20240923006

Enrollment

Registered

2024-09-23

Start date

2024-09-02

Completion date

Unknown

Last updated

2026-03-30

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

Conditions

1. Predicted non-difficult airway patients undergoing elective surgery under general anesthesia 2. new anesthesia trainees in first three months of an academic year 1. Predicted non-difficult airway patients 2. New anesthesia trainees

Interventions

Start facemask ventilation at 0 sec then add neuromuscular blocking agent intravenous at 30 sec. After 90 sec, perform endotracheal intubation. Peak airway pressure and expired tidal volume were recor

Experimental Procedure/Surgery

Face mask ventilation

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria of patients 1. Predicted non-difficult airway patients 18-65 years old undergoing elective surgery under balanced general anesthesia with oral endotracheal intubation 2. ASA physical status I-II 3. Operation time > 1 hour Inclusion criteria of trainees 1. New anesthesia trainee in first 3 months of academic year at Srinagarind hospital

Exclusion criteria

Exclusion criteria: 1. Risks of pulmonary aspiration such as NPO time less than 8 hours conditions with gastroparesis (DM, ESRD, etc.) 2. Abnormal airway anatomy 3. Requiring awake intubation 4. Allergies to study drugs 5. Impaired renal function (GFR<60 ml/min/1.73m2) 6. Impaired liver function such as patients with cirrhosis (all Child-Pudge stage), elevated liver enzymes, albumin less than 3.5 g/dl, patients with jaundice (TB>2 mg/dL) 7. Neuromuscular disorders 8. Predicted difficult airway such as obesity (BMI more than 30 kg/m2), Mallampati class 3-4, history of obstructive sleep apnea, Head and neck deformities eg. limited neck movement or jaw protrusion, presence of beard, lack of teeth

Design outcomes

Primary

Measure	Time frame
Expired tidal volume 1 minute A record from anesthetic machine	—

Secondary

Measure	Time frame
Incident 1 minute Cannot ventilate cannot intubate	—

Countries

Thailand

Contacts

Public Contactwatcharaporn chardlilok

University

watcch@kku.ac.th0624271721

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Apr 4, 2026