Spinal Cord Injury Clinical Trial
Official title:
Evaluation of the NeuRx RA/4 Diaphragmatic Pacemaker in Tetraplegic Patients With Spinal Cord Injuries in Ventilator Support
Verified date | March 2013 |
Source | University of Sao Paulo |
Contact | n/a |
Is FDA regulated | No |
Health authority | Brazil: National Committee of Ethics in Research |
Study type | Interventional |
Permanent dependency of breathing apparatus due to spinal cord injury is traditionally
treated with different types of mechanical ventilation. However, the electric ventilation
became a possibility through their most current versions, such as diaphragmatic pacemakers.
Diaphragmatic pacemakers rhythmically stimulates the diaphragm to replace the functions of
the respiratory center that doesn't works well or is inaccessible. However, this modality
has the prerequisite that the phrenic nerve and diaphragm muscle are normal. The reason for
the development of diaphragmatic pacemaker freeing the patient from the ventilator.
By using the mechanical energy of the diaphragm of the patient, the patient may come not
need the ventilator tubing, tracheostomy, and with the help of their caregivers, the
inconvenient mechanical ventilators.
Status | Completed |
Enrollment | 5 |
Est. completion date | December 2012 |
Est. primary completion date | November 2012 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - 18 years old or more - Cervical spinal cord injuries patients under mechanical ventilation - Clinically stable after spinal cord injury - Clinical acceptable bilateral phrenic nerve function demonstrated with electromyography and neural conduction time - Fluoroscopic visible diaphragmatic movements under stimulation - Hemodynamically stable - No co-morbidities that can interfere with pacemaker implantation or function - Pregnancy negative test for women - Patient or legal representative informed consent Exclusion Criteria: - Active pulmonary disease - Active cardiovascular disease - Active cerebral disease - Hemodynamic instability or low oxygen levels in ambient air - Hospitalization for infection in the last 3 months - Significant scoliosis or chest disease - Obesity - Poor compliance to the protocol from the patient or the caregiver |
Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
Brazil | Heart Institute (InCor) Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo | Sao Paulo | SP |
Brazil | Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo | Sao Paulo |
Lead Sponsor | Collaborator |
---|---|
University of Sao Paulo | Synapse Biomedical |
Brazil,
Tedde ML, Onders RP, Teixeira MJ, Lage SG, Ballester G, Brotto MW, Okumura EM, Jatene FB. Electric ventilation: indications for and technical aspects of diaphragm pacing stimulation surgical implantation. J Bras Pneumol. 2012 Sep-Oct;38(5):566-72. English — View Citation
Tedde ML, Vasconcelos Filho P, Hajjar LA, de Almeida JP, Flora GF, Okumura EM, Osawa EA, Fukushima JT, Teixeira MJ, Galas FR, Jatene FB, Auler JO Jr. Diaphragmatic pacing stimulation in spinal cord injury: anesthetic and perioperative management. Clinics — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Volume comparison of the basal with the tidal volume obtained with the NeuRx RA/4 pacemaker in patients with diaphragmatic paralysis | The ability of the NeuRx RA / 4 to obtain clinically acceptable tidal volume during a period of 4 continuous hours will be evaluated by spirometry. Clinically acceptable volume is defined as a volume in excess of 15% above the basal metabolic requirements of the particular patient. For a male patient, the flow volume to meet the basal metabolic requirement is set at 7 ml/kg body weight, while for a female patient, it is defined in 6ml/Kg body weight. | One year | Yes |
Secondary | Functional rehabilitation by measure of total usage time, both day and night | Using spreadsheets to patients and caregivers, will collect information related to the use of the device, such as total usage time, the preference to use it both day and night instead of a mechanical ventilator, or to use it partial time to perform any activity or acquire independence that would otherwise be difficult with mechanical ventilation. | One year | No |
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