Effect of the Side of Interscalene Block on Bradycardia and Hypotension in Beach Chair Position

The Effect of the Side of Interscalene Block on the Occurrence of Bradycardia and Hypotension During Shoulder Surgery in the Beach Chair Position

Status

UNKNOWN

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01755780

Enrollment

Registered

2012-12-24

Start date

2012-12-31

Completion date

2015-07-31

Last updated

2014-07-10

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

Conditions

Autonomic Nervous System, Beach Chair Position, Bradycardia, Hypotension, Interscalene Block, Shoulder Surgery

Brief summary

The Left interscalene block has a different effect on heart's autonomic nervous system, compared to Right interscalene block. This effect is evident on the occurrence of bradycardia and hypotension during shoulder surgery in the beach chair position

Interventions

OTHERLeft interscalene block

OTHERRight interscalene block

Study design

Observational model

CASE_CONTROL

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

50 Years to 80 Years

Healthy volunteers

Inclusion criteria

* elective shoulder surgery * Age 50- 80 years old * ASA II - IV

Exclusion criteria

* Coagulopathy disorders * Infection at the puncture site for the interscalene block * Neurological deficit on the side to be operated * Allergy to local anesthetics * Psychiatric disorders * Patient's refusal * Problems with patient communication * Failure of the interscalene block

Design outcomes

Primary

Measure	Time frame	Description
Interscalene block and beach chair positioning	Intraoperatively	Effect of interscalene block on hypotension and bradycardia during beach chair positioning

Countries

Greece

Contacts

Primary ContactMarina Simaioforidou, Medicine

msimaiof@otenet.gr00306972202573

Backup ContactGeorge Vretzakis, Medicine

gvretzakis@yahoo.com00302413502952

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026