Systolic pulmonary artery pressure derived from pulmonary artery acceleration time could cross-check with pressure derived from simplified Bernoulli Eq.

2021 ◽  
Vol 345 ◽  
pp. 42-43
Author(s):  
P.K. Kong ◽  
E.M. Lam ◽  
M.A. Sheikh Abdul Kader
Keyword(s):  
Pulmonary Artery ◽  
Pulmonary Artery Pressure ◽  
Systolic Pulmonary Artery Pressure ◽  
Acceleration Time ◽  
Artery Pressure

scholarly journals Utility of Pulmonary Artery Acceleration Time to Estimate Systolic Pulmonary Artery Pressure in Neonates and Young Infants

2019 ◽  
Vol 41 (2) ◽  
pp. 265-271
Author(s):  
Bassel Mohammad Nijres ◽  
John Bokowski ◽  
Lamya Mubayed ◽  
Sabih H. Jafri ◽  
Alan T. Davis ◽  
...  
Keyword(s):  
Pulmonary Artery ◽  
Pulmonary Artery Pressure ◽  
Systolic Pulmonary Artery Pressure ◽  
Acceleration Time ◽  
Artery Pressure ◽  
Young Infants

scholarly journals Relationship between climate and hemodynamics according to echocardiography

2019 ◽  
Vol 126 (2) ◽  
pp. 322-329 ◽  
Author(s):  
Zach Rozenbaum ◽  
Yan Topilsky ◽  
Shafik Khoury ◽  
Milwidsky Assi ◽  
Asta Balchyunayte ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Pulmonary Artery ◽  
Stroke Volume ◽  
Pulmonary Artery Pressure ◽  
Odds Ratio ◽  
Apparent Temperature ◽  
Systolic Pulmonary Artery Pressure ◽  
Climate Data ◽  
Artery Pressure ◽  
Ambulatory Patients

Studies performed in controlled laboratory conditions have shown that environmental thermal application may induce various circulatory changes. We aimed to demonstrate the effect of local climate on hemodynamics according to echocardiography. Echocardiographic studies conducted in ambulatory patients, 18 yr of age or older, between January 2012 and July 2016, at our medical center, for whom climate data on the day of the echocardiogram study were available, were retrospectively included in case climate data. Discomfort index, apparent temperature, temperature-humidity index, and thermal index were computed. Echocardiograms conducted in hotter months (June–November) were compared with those done in colder months (December–May). The cohort consisted of 11,348 individuals, 46.2% women, and mean age of 57.9 ± 18.1 yr. Climate indexes correlated directly with stroke volume ( r = 0.039) and e′ (lateral r = 0.047; septal r = 0.038), and inversely with systolic pulmonary artery pressure (SPAP; r = −0.038) (all P values < 0.05). After adjustment for age and sex, echocardiograms conducted during June–November had a lower chance to show e′ septal < 7 cm/s (odds ratio 0.88, 95% confidence interval 0.78–0.98, P = 0.017) and SPAP > 40 mmHg (odds ratio 0.81, 95% confidence interval 0.67–0.99, P = 0.04) compared with those conducted in other months. The authors concluded that climate may affect hemodynamics, according to echocardiographic assessment in ambulatory patients. NEW & NOTEWORTHY In the present study, we examined 11,348 individuals who underwent ambulatory echocardiography. Analyses of the echocardiographic studies demonstrated that environmental thermal stress, i.e., climate, may affect hemodynamics. Most notably were the effects on diastolic function. Higher values of mitral e′, stroke volume, as well as ejection fraction, and lower values of systolic pulmonary artery pressure and tricuspid regurgitation were demonstrated on hotter days and seasons.

scholarly journals The Relationship between Vitamin D Deficiency and Pulmonary Hypertension

2013 ◽  
Vol 114 (3) ◽  
pp. 154-161 ◽  
Author(s):  
Mehmet Demir ◽  
U. Uyan ◽  
S. Keçeoçlu ◽  
C. Demir
Keyword(s):  
Vitamin D ◽  
Pulmonary Hypertension ◽  
Pulmonary Artery ◽  
Vitamin D Deficiency ◽  
Pulmonary Artery Pressure ◽  
Control Group ◽  
Systolic Pulmonary Artery Pressure ◽  
Control Groups ◽  
Artery Pressure ◽  
Vitamin D Levels

Vitamin D deficiency actives renin-angiotensin-aldosterone system (RAAS) which affects cardiovascular system. Activation of RAAS is associated with pulmonary hypertension (PHT). Relation between vitamin D deficiency and PHT could be therefore suggested. In  our study we compared pulmonary artery pressure between vitamin D deficiency and control groups. 115 consecutive patients (average age: 61.86 ± 5.86) who have detected very low vitamin D (vitamin D levels < 10 ng/ml) were enrolled. 117 age matched persons (average age: 61.74 ± 5.99) were selected as the control group. All groups underwent transthoracic echocardiography. Routine biochemical measurement of 25-OH vitamin D and parathormon (PTH) levels were performed. Baseline characteristics of the study groups were comparable. Systolic pulmonary artery pressure (SPAP) of patients in  the low vitamin D group was higher than the control groups. As a  result our study, a  relation between vitamin D deficiency and pulmonary artery hypertension was revealed.

Physiological alterations in increased pulmonary blood flow with and without pulmonary hypertension

1961 ◽  
Vol 16 (2) ◽  
pp. 305-308 ◽  
Author(s):  
Lois T. Ellison ◽  
David P. Hall ◽  
Thomas Yeh ◽  
H. Mobarhan ◽  
Joseph Rossi ◽  
...  
Keyword(s):  
Blood Flow ◽  
Pulmonary Artery ◽  
Pulmonary Function ◽  
Pulmonary Artery Pressure ◽  
Pulmonary Blood Flow ◽  
Pulmonary Artery Hypertension ◽  
Systolic Pulmonary Artery Pressure ◽  
Venous Admixture ◽  
Artery Pressure ◽  
Physiological Alterations

Alterations in pulmonary function and in hemodynamics were studied in dogs with high pulmonary blood flow resulting from systemic pulmonary artery shunts. In order to facilitate elevation in pulmonary artery pressure, the vascular bed was reduced in some cases by obstructing branches of the pulmonary artery with Teflon clips or by lobectomy. Results in 30 control dogs and in 30 animals that survived 5–36 months (average 16) following creation of shunts indicated that pulmonary function was not significantly altered by increased pulmonary blood flow until pulmonary artery hypertension developed. When systolic pulmonary artery pressure exceeded 40 mm Hg, there was a decrease in arterial Po2, an increase in venous admixture percentage of cardiac output, and an increase in the A-a O2 difference during three levels of O2 breathing, indicating both abnormal venous admixture and abnormal diffusion. Possible explanations for these findings are presented. Evidence in one dog suggests that these alterations are reversible. Submitted on August 10, 1960

scholarly journals A Simplified Ultrasound Comet Tail Grading Scoring to Assess Pulmonary Congestion in Patients with Heart Failure

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Hong Li ◽  
Yi-Dan Li ◽  
Wei-Wei Zhu ◽  
Ling-Yun Kong ◽  
Xiao-Guang Ye ◽  
...  
Keyword(s):  
Heart Failure ◽  
Pulmonary Artery ◽  
Pulmonary Artery Pressure ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Systolic Pulmonary Artery Pressure ◽  
Pulmonary Congestion ◽  
Functional Classification ◽  
Artery Pressure ◽  
Patients With Heart Failure

Ultrasound lung comets (ULCs) are a nonionizing bedside approach to assess extravascular lung water. We evaluated a protocol for grading ULC score to estimate pulmonary congestion in heart failure patients and investigated clinical and echocardiographic correlates of the ULC score. Ninety-three patients with congestive heart failure, admitted to the emergency department, underwent pulmonary ultrasound and echocardiography. A ULC score was obtained by summing the ULC scores of 7 zones of anterolateral chest scans. The results of ULC score were compared with echocardiographic results, the New York Heart Association (NYHA) functional classification, radiologic score, and N-terminal pro-b-type natriuretic peptide (NT-proBNP). Positive linear correlations were found between the 7-zone ULC score and the following: E/e′, systolic pulmonary artery pressure, severity of mitral regurgitation, left ventricular global longitudinal strain, NYHA functional classification, radiologic score, and NT-proBNP. However, there was no significant correlation between ULC score and left ventricular ejection fraction, left ventricle diameter, left ventricular volume, or left atrial volume. A multivariate analysis identified the E/e′, systolic pulmonary artery pressure, and radiologic score as the only independent variables associated with ULC score increase. The simplified 7-zone ULC score is a rapid and noninvasive method to assess lung congestion. Diastolic rather than systolic performance may be the most important determinant of the degree of lung congestion in patients with heart failure.

Sign in / Sign up

Export Citation Format

Share Document