Impact of Anesthesiology Interventions on Postoperative Outcomes in Adult Patients Undergoing Shoulder Surgery

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

59644 participants

Study Classification

OBSERVATIONAL

Study Start Date

2009-04-01

Study Completion Date

2018-03-31

Brief Summary

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This retrospective, population-based cohort study will evaluate the comparative effectiveness of peripheral nerve blocks on patient outcomes after ambulatory shoulder surgery in adults patients undergoing surgery in Ontario.

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Detailed Description

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First, investigators will validate health administrative data codes to demonstrate the accuracy of Ontario-wide anesthesia type and regional anesthesia interventions using a reference standard (Ottawa Hospital Data Warehouse data). Then, these validated exposures, in combination with validated outcome measures, will be used to examine the impact of anesthesia interventions on patient and health system outcomes for ambulatory shoulder surgery.

Conditions

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Postoperative Complications

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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Isolated General Anesthesia

Ontario residents, aged 18 years and older, who have undergone elective ambulatory shoulder surgery in Ontario and have not had a nerve block identified using physician billing codes.

Isolated General Anesthesia

Intervention Type PROCEDURE

No nerve block identified through physician billing codes

Peripheral Nerve Block

Ontario residents, aged 18 years and older, who have undergone elective ambulatory shoulder surgery in Ontario and have a nerve block identified using physician billing codes.

Peripheral Nerve Block

Intervention Type PROCEDURE

Nerve block identified through physician billing codes

Interventions

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Isolated General Anesthesia

No nerve block identified through physician billing codes

Intervention Type PROCEDURE

Peripheral Nerve Block

Nerve block identified through physician billing codes

Intervention Type PROCEDURE

Other Intervention Names

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iGA PNB+GA

Eligibility Criteria

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Inclusion Criteria

* Ontario residents
* Aged 18 years and older
* Elective ambulatory shoulder surgery performed in Ontario between April 2009 and December 2016.

Exclusion Criteria

* Emergency Surgery
* If a patient undergoes multiple elective shoulder surgeries within the time period, only the first surgery will be included for any participant in the study period.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No