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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05728047
Other study ID # CAAE 60999822.3.0000.5272
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date September 10, 2022
Est. completion date September 2024

Study information

Verified date October 2023
Source National Institute of Cardiology, Laranjeiras, Brazil
Contact Eduardo Tibirica, MD, PhD
Phone +55-21-99914-6075
Email etibi@uol.com.br
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The study aims to study the systemic microcirculation in adult patients hospitalized at a quaternary public hospital during the preoperative and immediate postoperative periods of heart valve surgery and correlations to their clinical and laboratory outcomes in the postoperative period.


Description:

Despite the development of new endovascular procedures in recent years, cardiac surgery currently remains an important instrument in the management of patients with severe heart diseases, such as hemodynamically significant coronary obstructions and valve pathologies. Despite the advances in the management of patients in intensive care, the postoperative period of patients undergoing cardiac surgery remains a challenge due to the intense inflammatory reaction triggered by the surgical procedure itself and exacerbated by the use of cardiopulmonary bypass (CPB), fundamental in most cardiac surgeries performed nowadays. In this context, cardiac surgery for the treatment of valve pathologies with the use of CPB is more related to unfavorable clinical outcomes in the postoperative period in relation to coronary artery bypass grafting (CABG). It is postulated, as a causal factor, the longer CPB time in valve surgeries associated with more prominent cardiac morphological changes in these patients. Studies carried out in recent years in patients hospitalized in intensive care that developed a severe inflammatory reaction, either due to sepsis, surgical procedure or more recently due to the Covid-19 pandemic, have shown a frequent dissociation between the hemodynamic findings measured in the ICU with the data of the patients' systemic microcirculation. The use of portable microscopes has allowed the measurement of systemic microcirculation at the bedside in intensive care, enabling prompt assessment of aspects related to tissue perfusion, thus seeking to improve clinical outcomes in these patients.


Recruitment information / eligibility

Status Recruiting
Enrollment 31
Est. completion date September 2024
Est. primary completion date September 2024
Accepts healthy volunteers
Gender All
Age group 18 Years to 75 Years
Eligibility Inclusion Criteria: - Patients scheduled to heart valve surgery under cardiopulmonary bypass. Exclusion Criteria: - Patients operated on for infective endocarditis

Study Design


Intervention

Procedure:
Evaluation of sublingual microcirculation with side-stream dark field imaging (cytocam)
The 'Cytocam' is a hand held computer-controlled device, a third generation video-microscope, which enables real time visualisation of the in vivo microcirculation, based upon the principle of incident dark field (IDF) illumination.

Locations

Country Name City State
Brazil National Institute of Cardiology Rio de Janeiro

Sponsors (1)

Lead Sponsor Collaborator
National Institute of Cardiology, Laranjeiras, Brazil

Country where clinical trial is conducted

Brazil, 

Outcome

Type Measure Description Time frame Safety issue
Primary Evaluation of systemic microcirculation Number of capillaries in the sublingual microcirculation. Change of microvascular density between the preoperative and up to four hours in the postoperative period.
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