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Currently, the gold standard method to estimate CO in patients with PAH or RV dysfunction is pulmonary artery catheter (PAC), however, the invasiveness and complexity of PAC has limited its usefulness in many clinical scenarios. By measuring the thoracic electrical bioimpedance, electrical cardiometry (EC) technique has been reported to noninvasively estimate cardiac output (CO) and other parameters related to cardiac contractility and fluid status in various cardiovascular disorders. However, in patients with pulmonary arterial hypertension (PAH) and/or right ventricular (RV) dysfunction, few study has been reported. The aim of this study is to evaluate the agreement between CO measured by PAC as the referenced method and CO measured by EC technique in patients with PAH and/or RV dysfunction.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| patients with pulmonary artery hypertension and/or right ventricular dysfunction | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| passive leg raising | Behavioral | transfer a patient from semi-recumbent position to supine position with a 45° leg lifting |
|
| Measure | Description | Time Frame |
|---|---|---|
| cardiac output by pulmonary artery catheter | measuring cardiac output using pulmonary artery catheter | 5minutes after the patients was sedated |
| cardiac output by electrical cardiometry | measuring cardiac output using electrical cardiometry | 5minutes after the patients was sedated |
| cardiac output by pulmonary artery catheter | measuring cardiac output using pulmonary artery catheter | 2 minutes after passive leg raising |
| cardiac output by electrical cardiometry | measuring cardiac output using electrical cardiometry | 2 minutes after passive leg raising |
| cardiac output by pulmonary artery catheter | measuring cardiac output using pulmonary artery catheter | 15 minutes after termination of passive leg raising |
| cardiac output by electrical cardiometry | measuring cardiac output using electrical cardiometry | 15 minutes after termination of passive leg raising |
| cardiac output by pulmonary artery catheter | measuring cardiac output using pulmonary artery catheter | 30 minutes after dobutamine infusion |
| cardiac output by electrical cardiometry |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Zhe Luo, PhD | Contact | 02164041990 | 3659 | luo.zhe@zs-hospital.sh.cn |
| Name | Affiliation | Role |
|---|---|---|
| Guang-wei Hao, PhD | Fudan University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Zhongshan hospital Fudan University | Recruiting | Shanghai | Shanghai Municipality | 200032 | China |
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| ID | Term |
|---|---|
| D000081029 | Pulmonary Arterial Hypertension |
| D018497 | Ventricular Dysfunction, Right |
| ID | Term |
|---|---|
| D006976 | Hypertension, Pulmonary |
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
| D018754 | Ventricular Dysfunction |
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| dobutamine test | Drug | infusion dobutamine |
|
| inhaled nitric oxide | Drug | nitric oxide inhalation |
|
measuring cardiac output using electrical cardiometry |
| 30 minutes after dobutamine infusion |
| cardiac output by pulmonary artery catheter | measuring cardiac output using pulmonary artery catheter | 30 minutes after termination of dobutamine infusion |
| cardiac output by electrical cardiometry | measuring cardiac output using electrical cardiometry | 30 minutes after termination of dobutamine infusion |
| cardiac output by pulmonary artery catheter | measuring cardiac output using pulmonary artery catheter | 30 minutes after nitric oxide inhalation |
| cardiac output by electrical cardiometry | measuring cardiac output using electrical cardiometry | 30 minutes after nitric oxide inhalation |
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |