Research on the Mechanism and Prediction Model of Difficult Airway in Cervical Spine Surgery Based on Multimodal Spatial Encoding

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2600120993

Enrollment

Unknown

Registered

2026-03-24

Start date

2026-04-01

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

Cervical spondylosis

Interventions

The group of difficult laryngoscopy(Group D):None

The group of non-difficult laryngoscopy(Group N):None

Eligibility

Sex/Gender

All

Age

20 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Preoperative diagnosis of cervical spondylosis (myelopathy or radiculopathy); 2. Patients scheduled for elective cervical spine surgery under general anesthesia; 3. Age between 20 and 70 years; 4. American Society of Anesthesiologists (ASA) physical status classification I–III.

Exclusion criteria

Exclusion criteria: 1. Pregnant women; 2. Cervical spine immobilization; 3. Presence of oropharyngeal masses or prior surgery; 4. Refusal to sign informed consent.

Design outcomes

Primary

Measure	Time frame
thyromental distance;modified Mallampati classification;the neck circumference to interincisor distance ratio;occipital squama;mandible;C1-7 vertebral bodies;hyoid bone (body and greater horns);larynx;geniohyoid muscle;genioglossus muscle;hyoglossus muscle;digastric muscle;mylohyoid muscle;styloglossus muscle;inferior longitudinal muscle of tongue;superior longitudinal muscle of tongue;sublingual gland;submandibular gland;	—

Measure

Time frame

thyromental distance;modified Mallampati classification;the neck circumference to interincisor distance ratio;occipital squama;mandible;C1-7 vertebral bodies;hyoid bone (body and greater horns);larynx;geniohyoid muscle;genioglossus muscle;hyoglossus muscle;digastric muscle;mylohyoid muscle;styloglossus muscle;inferior longitudinal muscle of tongue;superior longitudinal muscle of tongue;sublingual gland;submandibular gland;

—

Secondary

Measure	Time frame
Sensitivity;Specificity;Area Under the Curve (AUC);F1 Score;Concordance Index (C-index);Hosmer-Lemeshow Test;Precision-Recall (PR) Curves;mAP based on IoU/OKS;	—

Countries

China

Contacts

Public ContactYongzheng Han

Peking University Third Hospital

hanyongzheng@bjmu.edu.cn+86 152 0130 4460

Outcome results

None listed

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