The effect of reducing postoperative sore throat by zinc troche before surgery in general anesthesia with tracheal intubation in the beach chair position

The effect of reducing postoperative sore throat by zinc troche before surgery in general anesthesia with tracheal intubation in the beach chair position - The effect of reducing postoperative sore throat by zinc troche before surgery in general anesthesia with tracheal intubation in the beach chair position

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000046029

Enrollment

Registered

2021-11-11

Start date

2021-11-12

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Sore throat after tracheal intubation

Interventions

Zinc-containing candy administered 30 minutes before anesthesia Zinc-free candy administration 30 minutes before anesthesia

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 18 years old and over ASA1-2 Those who undergo tracheal intubation in the beach chair position

Exclusion criteria

Exclusion criteria: Preoperative sore throat Upper respiratory tract inflammation Immunodeficiency Chronic smoker History of head and neck surgery History of intubation difficulty Use of tetracycline or quinolone antibiotics Zinc allergy

Design outcomes

Primary

Measure	Time frame
Incidence of sore throat Degree of sore throat	—

Countries

Japan

Contacts

Public ContactTomoko Kotera

Osaka orthopedic Hospital department of anesthesiology

starbucks.tomo@gmail.com0664631111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026