Impact of Spontaneous Breathing on Ventilation Distribution in Obese Patients

Technische Universität Dresden16 enrolled

Overview

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).

Study Type

OBSERVATIONAL

Enrollment

Conditions

Obesity Hip Arthroplasty General Anesthesia Spinal Anesthesia Atelectasis

Eligibility

Sex: ALLMin age: 18 YearsMax age: 85 Years

Medical Language ↔ Plain English

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

Outcomes

Primary Outcomes

arterial pO2 on room air

Time frame: 24hrs

Center of Ventilation

measured by EIT

Time frame: 24hrs

Secondary Outcomes

Peak Flow

Time frame: 24hrs

Impact of Spontaneous Breathing on Ventilation Distribution in Obese Patients

Overview

Conditions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Secondary Outcomes