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'definition pulmonary hypertension'
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The use of invasive hemodynamic monitoring is based on the following principal factors: 1. Difficulty in interpreting clinical and radiographic findings of pulmonary congestion even after a thorough review of noninvasive studies such as an echo-cardiogram. 2. Need for identifying noncardiac causes of arterial hypotension, particularly hypovolemia. 3. Possible contribution of reduced ventricular compliance to impaired hemodynamics, requiring judicious adjustment of intravascular volume to optimize left ventricular filling pressure. 4. Difficulty in assessing the severity and sometimes even determining the presence of lesions such as mitral regurgitation and ventricular septal defect when the cardiac output or the systemic pressures are depressed. 5. Establishing a baseline of hemodynamic measurements and guiding therapy in patients with clinically apparent pulmonary edema or cardiogenic shock. 6. Underestimation of systemic arterial pressure by the cuff method in patients with intense vasoconstriction. The prognosis and the clinical status of patients with STEMI relate to both the cardiac output and the pulmonary artery wedge pressure. Patients
Left Ventricular Failure Single most important predictor of mortality following STEMI in patients with STEMI Systolic dysfunction alone or both systolic and diastolic dysfunction can occur. LVDD leads to pulmonary venous hypertension and pulmonary congestion. Systolic dysfunction - ↓ cardiac output and of the ejection fraction. Predictors of LVF infarct size, advanced age and diabetes.[190] Mortality increases in association with the severity of the hemodynamic deficit.
It may also improve arterial oxygenation by reducing pulmonary vascular congestion DIURETICS. Mild heart failure responds well to diuretics such as furosemide, Dose - 10 to 40 mg, repeated at 3- to 4-hour intervals if necessary. It reduces pulmonary capillary pressure reduces dyspnea. Decreased LVDV↓ LV wall tension - ↓ myocardial oxygen requirements and may lead to improvement of contractility and augmentation of the ejection fraction, stroke volume, and cardiac output. The reduction of elevated left ventricular filling pressure may also enhance myocardial oxygen delivery by diminishing the impedance to coronary perfusion attributable to elevated ventricular wall tension. .
heart doctors in Sahakara Nagar, Bangalore • A clinical approach to hypertension The aims of assessing the hypertensive patient are to: n assess the severity of hypertension n identify any secondary causes n identify aggravating factors n identify target organ damage n assess and manage coexisting CVD risk factors n identify factors affecting the choice of treatment n establish baseline clinical and laboratory data
PAPULAR CARDIOL0GISTS IN BANGALORE A clinical approach to hypertension The aims of assessing the hypertensive patient are to: assess the severity of hypertension identify any secondary causes identify aggravating factors identify target organ damage assess and manage coexisting CVD risk factors identify factors affecting the choice of treatment establish baseline clinical and laboratory data.
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