Intravascular lithotripsy (IVL) is a novel method based on pulsatile ultrasonic pressure waves specifically aimed to modify circumferential and transmural calcium plaques. We report the successful application of shockwave IVL catheter® in child with chronic thromboembolic pulmonary hypertension due calcified thrombi both lower lobes. Compared conventional high-pressure balloon angioplasty, sign...

Twenty-three patients exhibiting coronary insufficiency on exercise have been studied at rest and at exercise prior to and following sublingual administration of nitroglycerin. The most consistent and marked effect of nitroglycerin was the reduction in pulmonary artery pressure, total pulmonary resistance, and right ventricular work at rest and during exercise. Our patients were grouped accordi...

PURPOSE The purpose of this study was to determine the normal range of the main pulmonary artery diameter (MPAD) by computed tomography (CT) in persons with normal pulmonary artery pressure, and then to evaluate the relationship of the diameter with age, gender, and body surface area (BSA). MATERIALS AND METHODS Between October 2005 and June 2007, among patients who had previously undergone a...

unilateral pulmonary artery agenesis (upaa) is a rare congenital anomaly during the 4 th  week of gestational age. it is defined as an absence of pulmonary parenchyma and its supporting artery. a 9-year-old girl was admitted to our hospital because of chronic cough. chest examination showed a decrement in lung sound of right hemi-thorax with expiratory wheeze. chest radiography (cxr) revealed a...

The exponential fall of the pulmonary pressure curve from its systolic peak to left atrial pressure previously described in the presence of normal intraventricular conduction has been investigated in patients with right bundle-branch block. We have been able to show once more that the pulmonary artery diastolic pressure seeks the left atrial level: when right ventricular systole is delayed the ...

BACKGROUND The balance of systemic, pulmonary, and coronary blood flow after the Norwood operation for hypoplastic left heart syndrome (HLHS) is critical to early survival. We hypothesized that a right ventricle to pulmonary artery conduit (instead of a systemic to pulmonary artery shunt) would result in hemodynamic changes consistent with a more stable balance of systemic, pulmonary, and coron...

Aorto-pulmonary septal defects and anomalous origins of left coronary artery from pulmonary artery are briefly discussed. The difficulties of diagnosis and surgical correction are put forward in a situation when the left coronary artery arises from a site of high pressure and saturation, such as the pulmonary artery in the presence of an aorto-pulmonary septal defect, as in the case described.

Primary pulmonary hypertension is a disorder with limited treatment options and poor outcome. We demonstrated a beneficial role of sildenafil, a phosphodiesterase 5 inhibitor, in a patient with primary pulmonary hypertension. After the initiation of sildenafil the pulmonary artery pressure decreased from 40/20mmHg to 16/6mmHg, while mean pulmonary arterial systolic pressure decreased from 25mmH...

The cardiorespiratory effects of thrombin-induced disseminated intravascular coagulation (DIC) were studied in two groups of dogs. The main changes were a reduction in cardiac output and arterial pressure, an increase in pulmonary artery pressure and, an increase in pulmonary artery pressure and an increase in venous admixture. In one group of dogs the reduction in cardiac output was diminished...

Baroreceptor sensitivity, reflected by the slope of the linear regression of the electrocardiographic R-R interval on the rise of systolic blood pressure after injection of phenylephrine, was significantly lower in 27 patients with chronic obstructive pulmonary disease (4.67 +/- 2.67) than in 10 normal subjects (12.07 +/- 3.3) of comparable age (p less than 0.001). In 20 patients in whom right ...