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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT06430463
Other study ID # 02-2024/11
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date June 5, 2024
Est. completion date November 5, 2024

Study information

Verified date May 2024
Source Karaman Training and Research Hospital
Contact Arife Sezgin
Phone +905304069461
Email drarife@gmail.com
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Interscalene brachial plexus block (ISBPB) is used frequently in shoulder, clavicle and upper arm surgeries to obtain analgesia in the postoperative period. Our primary aim in this study is to evaluate if interscalene block anesthesia has an effect on hearing levels of patients undergoing orthopedic shoulder surgeries.


Description:

Interscalene brachial plexus block (ISBPB) is used for both anesthesia and analgesia purposes in shoulder, clavicle and upper arm surgeries. It is also frequently used to obtain analgesia in the postoperative period especially in patients undergoing shoulder surgeries. Thus, it provides decrease in opioid need and opioid related side effects in the perioperative period. The effect of IBPB on hearing is probably not caused by an effect on the vestibulocochlear nerve because of its central location. The innervation area of the greater auricular nerve, a derivative of the cervical plexus, is often involved in an IBPB. However, this nerve is not known to affect hearing. The nerves supplying the outer ear canal and the tympanic membrane (branches of the mandibular, facial and vagal nerves) are located far enough from the IBPB injection site to make their involvement unlikely. However, sound conduction through the middle ear to the inner ear, and functioning of the spiral organ of the cochlea may be indirectly affected by regional sympathetic block that is most likely seen after IBPB. Sympathetic block may cause vasodilatation and swelling of the mucosal membranes of the middle ear and the eustachian tube with deterioration of hearing. The patient will be examined by ENT physician on the morning of the operation, after a detailed anamnesis. otoscopic examination will be performed, pure tone audiometry, speech audiometry and tympanometric examination will be performed and recorded.The same tests will be performed at the next day after the surgery but before the discharge and also when he/she applies for the first week check-up. Ultrasaoun guided Interscalene block anesthesia will be applied to all patients. Each patient will be treated with the same multimodal analgesia method at the postoperative period.


Recruitment information / eligibility

Status Recruiting
Enrollment 50
Est. completion date November 5, 2024
Est. primary completion date November 1, 2024
Accepts healthy volunteers No
Gender All
Age group 18 Years to 75 Years
Eligibility Inclusion Criteria: - participants are undergoing a shoulder surgery. - ASA I and II patients without uncontrolled diabetes and hypertension - participants have normal or near-normal hearing thresholds in the un-operated ear Exclusion Criteria: - participants have hearing loss (PTA > 35 dB HL) in pure tone audiometry testing before surgery in any side - participants have medical conditions after the surgery which prevents having hearing tests - participants have abnormal tympanometric results - participants with chronic otitis media or a history of ear surgery

Study Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
pure tone audiometry levels
The patient will be examined by ENT physician on the morning of the operation, otoscopic examination will be performed, pure tone audiometry, speech audiometry and tympanometric examination will be performed and recorded.The same tests will be performed at the next day after the surgery but before the discharge and also when he/she applies for the first week check-up.

Locations

Country Name City State
Turkey Karaman training and research hospital Karaman Merkez

Sponsors (1)

Lead Sponsor Collaborator
Karaman Training and Research Hospital

Country where clinical trial is conducted

Turkey, 

Outcome

Type Measure Description Time frame Safety issue
Primary Number of Participants with a Difference of 10 dB or more between Pre- and Post-surgery pure tone audiometry measurements at any Frequency pure tone audiometry measurements at all frequencies measured via MADSEN Astera2 device pre-surgery, a day after surgery
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