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Prediction of Difficult Mask Ventilation in adult patients undergoing elective surgery by Ultrasound of Distance from skin to hyoid bone (DSHB), and distance from skin to Thyroid isthmus (DSTI)]

Prediction of Difficult Mask Ventilation in adult patients undergoing elective surgery by Ultrasound of Distance from skin to hyoid bone (DSHB), and distance from skin to Thyroid isthmus (DSTI)]

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20200930002
Enrollment
189
Registered
2020-09-30
Start date
2020-10-01
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

1)Difficult Mask ventilation Grading by using Han’s mask ventilation Classification and description scale. 2)Sonographic measurements: thickness of anterior cervical soft tissue Difficult Mask ventilation Sonographic measurements: thickness of anterior cervical soft tissue

Interventions

Adult patients undergoing elective surgery
Screening

Sponsors

Faculty of Medicine, Prince of Songkla University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1.Patient Undergoing elective surgery under general anaesthesia with endotracheal tube intubation or using Supraglottic airway device 2.Age ≥18 years old 3.Appropriately NPO

Exclusion criteria

Exclusion criteria: 1.facial fractures, maxillofacial abnormalities, tumors, and cervical spine fractures 2.history of a difficult airway 3.a tracheostomy tube or Intubated Patient 4.Indications for awake and/ or spontaneous breathing airway management technique 5.Planned Rapid Sequence Induction 6.Planned using Succinylcholine

Design outcomes

Primary

MeasureTime frame
Difficult Mask ventilation Grading after induction of General Anesthesia Han’s mask ventilation Classification and description scale—

Secondary

MeasureTime frame
Sonographic measurements: thickness of anterior cervical soft tissue before induction of General Anesthesia Ultrasound Measurement—

Countries

Thailand

Contacts

Public ContactSumidtra Prathep

Anesthesiology Department, Faculty of Medicine, Prince of Songkla University

prathepsumidtra@gmail.com074-451651-2

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026