Pulmonary Hypertension Clinical Trial
Official title:
Exercise-induced Pulmonary Hypertension in Patients With Sickle-cell Anemia: an Echocardiographic Study.
Pulmonary hypertension (PH) at rest is a risk factor for death in patients with sickle-cell anemia (SCA). Exercise echocardiography (EE) can detect latent PH. We sought to investigate the occurrence of exercise-induced PH in patients with SCA and normal pulmonary pressure (PP) at rest, and its relationship with clinical and echocardiographic variables.Forty-four patients with SCA and normal PP at rest were studied and divided into two groups: exhibiting normal PP after treadmill EE (TRV≤2.7m/s) (G1), and exhibiting exercise-induced PH (TRV>2.7m/s) (G2). TRV cutoff points at rest and during exercise were based on data from healthy control subjects, matched for age, sex, and body surface area. Data obtained from EE were correlated with clinical, echocardiographic and ergometric variables.Exercise-induced PH occurred in 57% of the sample (G2), significantly higher than those of G1. Exercise-induced PH was related to higher levels of creatinine (p<0.05), increased left atrial volume (p<0.05) and right ventricular diastolic area (p<0.05), larger E/Em waves ratio derived from spectral and tissue Doppler (p<0.05), and higher TRV at rest (p<0.005).We concluded that patients with SCA and normal PP at rest may exhibit exercise-induced PH, which was related to renal function, increased cardiac chambers, abnormal indices of diastolic function and baseline TRV levels.
Pulmonary hypertension (PH) at rest is a risk factor for death in patients with sickle-cell anemia (SCA). Exercise echocardiography (EE) can detect latent PH. We sought to investigate the occurrence of exercise-induced PH in patients with SCA and normal pulmonary pressure (PP) at rest, and its relationship with clinical and echocardiographic variables.Forty-four patients (22 men, mean age 25 y.o.) with SCA and normal PP at rest (tricuspid regurgitant jet flow velocity [TRV] <2.5 m/s) were studied and divided into two groups: exhibiting normal PP after treadmill EE (TRV≤2.7m/s) (G1), and exhibiting exercise-induced PH (TRV>2.7m/s) (G2). TRV cutoff points at rest and during exercise were based on data from healthy control subjects, matched for age, sex, and body surface area. Data obtained from EE were correlated with clinical, echocardiographic and ergometric variables.Exercise-induced PH occurred in 57% of the sample (G2), with mean TRV level of 3.4±0.4 m/s (range 2.8 - 4.5m/s), significantly higher than those of G1 (2.5±0.3 m/s, p<0.001). Exercise-induced PH was related to higher levels of creatinine (p<0.05), increased left atrial volume (p<0.05) and right ventricular diastolic area (p<0.05), larger E/Em waves ratio derived from spectral and tissue Doppler (p<0.05), and higher TRV at rest (p<0.005).We concluded that patients with SCA and normal PP at rest may exhibit exercise-induced PH, which was related to renal function, increased cardiac chambers, abnormal indices of diastolic function and baseline TRV levels. The clinical meaning of these findings requires clarification in future studies. ;
Observational Model: Cohort, Time Perspective: Cross-Sectional
| Status | Clinical Trial | Phase | |
|---|---|---|---|
| Withdrawn |
NCT01950585 -
Hydroxyurea in Pulmonary Arterial Hypertension
|
Early Phase 1 | |
| Completed |
NCT00527163 -
Role of Nitric Oxide in Malaria
|
||
| Completed |
NCT03649932 -
Enteral L Citrulline Supplementation in Preterm Infants - Safety, Efficacy and Dosing
|
Phase 1 | |
| Recruiting |
NCT04554160 -
Arrhythmias in Pulmonary Hypertension Assessed by Continuous Long-term Cardiac Monitoring
|
||
| Enrolling by invitation |
NCT03683186 -
A Study Evaluating the Long-Term Efficacy and Safety of Ralinepag in Subjects With PAH Via an Open-Label Extension
|
Phase 3 | |
| Completed |
NCT01894035 -
Non-interventional Multi-center Study on Patients Under Routine Treatment of Pulmonary Arterial Hypertension (PAH) With Inhaled Iloprost Using I-Neb as a Device for Inhalation
|
||
| Not yet recruiting |
NCT04083729 -
Persistent Pulmonary Hypertension After Percutaneous Mitral Commissurotomy
|
N/A | |
| Completed |
NCT02821156 -
Study on the Use of Inhaled NO (iNO)
|
N/A | |
| Completed |
NCT02216279 -
Phase-II Study of the Use of PulmoBind for Molecular Imaging of Pulmonary Hypertension
|
Phase 2 | |
| Terminated |
NCT02243111 -
Detecting Pulmonary Arterial Hypertension (PAH) in Patients With Systemic Sclerosis (SSc) by Ultrasound
|
N/A | |
| Terminated |
NCT02246348 -
Evaluating Lung Doppler Signals in Patients With Systemic Sclerosis (SSc)
|
N/A | |
| Recruiting |
NCT01913847 -
Safety and Efficacy Study of HGP1207 in Patients With Pulmonary Hypertension
|
Phase 3 | |
| Completed |
NCT06240871 -
Contrast Enhanced PA Pressure Measurements
|
||
| Completed |
NCT01615484 -
Ex-vivo Perfusion and Ventilation of Lungs Recovered From Non-Heart-Beating Donors to Assess Transplant Suitability
|
N/A | |
| Completed |
NCT02377934 -
Evaluation of Radiation Induced Pulmonary Hypertension Using MRI in Stage III NSCLC Patients Treated With Chemoradiotherapy. A Pilot Study
|
||
| Recruiting |
NCT01091012 -
Effectiveness of the Vasodilator Test With Revatio, Made in Patients With Acute Pulmonary Hypertension
|
Phase 3 | |
| Completed |
NCT01463514 -
Noninvasive Determination of Cerebral Tissue Oxygenation in Pulmonary Hypertension
|
N/A | |
| Completed |
NCT02275793 -
The Regulation of Pulmonary Vascular Resistance in Patients With Heart Failure
|
||
| Completed |
NCT00739375 -
The Effect of Blood Flow in the Maturing Arteriovenous Access for Hemodialysis on the Development of Pulmonary Hypertension.
|
Phase 1 | |
| Completed |
NCT01484899 -
Smoking: a Risk Factor for Pulmonary Arterial Hypertension?
|
N/A |