Eye surgery under regional anaesthesia - what's going on beneath the drapes?

Novel oxygen delivery system to elective opthalmic surgery patients comparing inspired oxygen & carbon dioxide and end-tidal carbon dioxide levels under the surgical drapes & their effect on patient's vital signs.

Status

Completed

Phases

Unknown

Study type

Observational

Source

ANZCTR

Registry ID

ACTRN12611001161910

Enrollment

Registered

2011-11-07

Start date

2010-07-01

Completion date

Unknown

Last updated

2020-01-13

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

Conditions

None listed

Brief summary

Thirty four patients undergoing elective ophthalmic operations under regional anaesthesia were enrolled in this study after informed consent. Standard, waterproof ophthalmic drapes were used to cover the patients during the procedure and oxygen was administered via a modified plastic canister at a flow rate of 6L/min. In this study we characterise this elderly population and show patients are exposed to an increased inspired oxygen (FiO2), inspired carbon dioxide (FiCO2) and end-tidal carbon dioxide (EtCO2) level. The operation progressed without adverse events.

Interventions

Observational pilot study. Patients undergoing elective ophthalmic operations under regional anaesthesia were enrolled in this study after informed consent. Standard, waterproof ophthalmic drapes were used to cover the patients during the procedure and oxygen was administered via a modified plastic canister at a flow rate of 6L/min. In this study we characterise this elderly population and show patients are exposed to an increased FiO2, FiCO2 and EtCO2 as the operation progressed without

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

Patients were included in the study if they were undergoing ophthalmic surgery under regional or topical anaesthesia, over 18 and able to give informed consent.

Exclusion criteria

None elective opthalmic surgery No informed consent General anaesthesia Contra-indication to regional opthalmic anaesthesia Inability to lie flat & still for operation duration Under 18 years

Outcome results