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Clinical Study on the Effect of Chloroprocaine Topical Anesthesia in Reducing Cough Reflex During Pain-free Flexible Bronchoscopy

Clinical Study on the Effect of Chloroprocaine Topical Anesthesia in Reducing Cough Reflex During Pain-free Flexible Bronchoscopy

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500115021
Enrollment
Unknown
Registered
2025-12-21
Start date
2025-03-01
Completion date
Unknown
Last updated
2026-01-05

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

Conditions

None

Interventions

Test group:Patients who received surface anesthesia using Procaine Hydrochloride Injection were administered as follows: 5 ml was given via nebulization before the procedure, and 8 ml was sprayed into
Control group:Patients who received surface anesthesia using Lidocaine Hydrochloride Injection were administered as follows: 5 ml was given via nebulization before the procedure, and 8 ml was sprayed

Sponsors

Chengdu University Affiliated Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. Aged 18-80 years, regardless of gender; 2. Patients scheduled for elective painless bronchoscopy due to pulmonary disease; 3. American Society of Anesthesiologists (ASA) physical status classification II-III; 4. Willing to sign the informed consent form.

Exclusion criteria

Exclusion criteria: Patients with severe respiratory diseases (e.g., obstructive sleep apnea syndrome, uncontrolled asthma, active massive hemoptysis, severe pulmonary hypertension, etc.); Patients with hemodynamic instability or decompensated heart failure; Patients with epilepsy, severe neurological or psychiatric disorders; Patients with a history of upper respiratory surgery or radiotherapy; Patients allergic to benzodiazepines, opioids, propofol, or other related drugs, or those with contraindications to these medications; Patients allergic to PABA (para-aminobenzoic acid); Patients weighing less than 35 kg; Patients undergoing bronchoscopy via an artificial airway, such as endotracheal intubation or tracheostomy; Patients deemed by the investigator as unsuitable for participation in this trial.

Design outcomes

Primary

MeasureTime frame
Coughing rate during surgery;

Secondary

MeasureTime frame
Coughing rate after the examination;Patients were assessed using the Visual Analog Scale;The operator performed the Visual Analog Scale assessment.;The degree of glottic opening and closure;Degree of body movement;Changes in vital signs;The usage of ephedrine and atropine;

Countries

China

Contacts

Public ContactLiu Wenjie

Chengdu University Affiliated Hospital

1161608356@qq.com+86 187 8005 0699

Outcome results

None listed

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