Impact of Spontaneous Breathing on Ventilation Distribution in Obese Patients

Status

UNKNOWN

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01382927

Enrollment

Registered

2011-06-27

Start date

2011-04-30

Completion date

Unknown

Last updated

2011-06-27

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

Conditions

Atelectasis, General Anesthesia, Hip Arthroplasty, Obesity, Spinal Anesthesia

Brief summary

General anesthesia (GA) and paralysis are factors which facilitate atelectasis formation, especially in obese patients. Spontaneous breathing can reduce the amount of atelectasis. In this study, the investigators are comaparing obese patients undergoing hip arthroplasty in GA versus spinal anesthesia. Distribution of ventilation during and after anesthesia is assessed by eletrical impedance tomography (EIT).

Interventions

None listed

Study design

Observational model

CASE_CONTROL

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 85 Years

Healthy volunteers

Inclusion criteria

* BMI \>30 * age 18-85 * elective hip arthroplasty in general anesthesia or spinal anesthesia

Exclusion criteria

* pregnancy/breastfeeding * allergies against drugs used for the anesthesia * contraindications for EIT * severe cardiac or pulmonary comorbidities * unable to consent or understand/follow study

Design outcomes

Primary

Measure	Time frame	Description
Center of Ventilation	24hrs	measured by EIT
arterial pO2 on room air	24hrs	—

Secondary

Measure	Time frame
Peak Flow	24hrs

Countries

Germany

Outcome results