Diagnostic value of right heart and pulmonary artery catheterization in patients with suspected pulmonary hypertension. Part 2. Invasive study of parameters of hemodynamics and oxygen transport

2021 ◽  
Vol 28 (4) ◽  
pp. 9-22
Author(s):  
Yu. M. Sirenko ◽  
I. O. Zhyvylo ◽  
G. D. Radchenko ◽  
Yu. A. Botsiuk
Keyword(s):  
Pulmonary Hypertension ◽  
Heart Disease ◽  
Portal Hypertension ◽  
Oxygen Saturation ◽  
Oxygen Transport ◽  
Connective Tissue Diseases ◽  
Mixed Venous Blood ◽  
Pathophysiological Mechanism ◽  
Right Heart ◽  
Arterial Blood

The aim – evaluate the parameters of pulmonary and systemic hemodynamics obtained in patients with various forms of pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH) in Ukraine.Materials and methods. The study included 195 patients: IPAH was in 68 patients; PAH associated with connective tissue diseases (CTD) – in 21 patients; PAH associated with HIV infection – in 4 patients; PAH associated with portal hypertension (PH) – in 4 patients; PAH associated with congenital heart disease – in 25 patients; CTEPH – in 51 patients, pulmonary hypertension (PH) associated with left heart disease (LHC) – in 5 patients and 17 patients who were excluded from the diagnosis of PH. From 2014 to 2019, these patients underwent 220 procedures of right heart catheterization (RHC) in accordance with current European Guidelines. Also, all patients underwent echocardiographic examination and determined the gas composition of blood and indicators of acid-base balance using the ABL 735 analyzer, calculated the parameters of the affinity of hemoglobin to oxygen (p50).Results and discussion. The lowest level of arterial blood oxygen saturation was in the group of patients with PH due to LHD – 88.9 % (p<0.05); in other groups it averaged 94–97 %. The oxygen content in arterial blood was the lowest in the group of patients with PH due to LHD – 15.7 ml/L (p<0.05); in other groups this indicator was equal to 17.4–18.7 ml/L. The lowest oxygen saturation of mixed venous blood (SvO2) was in the PAH group associated with HIV – 58 % (p<0.05), and close to critical (< 65 %) SvO2 level was observed in the IPAH group – 66.3 %. CTEPH – 66.0 %. The highest level of this indicator was in the PAH group associated with portal hypertension – 81.1 %. The arterio-venous difference was highest in the PAH associated with HIV group – 5.6 ml/L, and the smallest in the PAH associated with PH group – 2 ml/L. On the other hand, the oxyhemoglobin dissociation curve was almost normal in all groups, except for the group of patients with PAH associated with portal hypertension.Conclusions. The most severe disorders of hemodynamics and oxygen transport were observed in the group of PAH patients associated with HIV compared with other forms of PAH and CTEPH. The IPAH and CTEPH groups were similar in terms of hemodynamics, despite a different pathophysiological mechanism. In the group of patients with PAH associated with CTD, the results of the RHC were slightly better than in the group of patients with IPAH, reflecting that the hemodynamic component is not the leading one for prognosis in these patients. Also, the performance of the right ventricle was significantly higher in patients with PAH compared with the group without PH.

Circulatory responses to high altitude in the cat and rabbit

1963 ◽  
Vol 18 (3) ◽  
pp. 575-579 ◽  
Author(s):  
John T. Reeves ◽  
Estelle B. Grover ◽  
Robert F. Grover
Keyword(s):  
Heart Failure ◽  
Pulmonary Hypertension ◽  
Right Ventricular ◽  
High Altitude ◽  
Oxygen Transport ◽  
Right Heart Failure ◽  
Blood Oxygenation ◽  
Right Heart ◽  
Arterial Blood ◽  
Mixed Venous

Cats were taken from Denver (5,200 ft.) to Mt. Evans (14,150 ft.) anticipating that this degree of hypoxia would induce pulmonary hypertension. Rabbits were included for comparison with the cat. All cats died without developing pulmonary hypertension or right heart failure, and in spite of arterial and mixed venous O2 tensions maintained well above those of the rabbit. Presumably the cat's failure to survive was not a failure of oxygen transport to the arterial blood, or to the systemic capillaries. Paradoxically, five of eight rabbits survived despite poor arterial blood oxygenation. The rabbits developed marked polycythemia associated with modest right ventricular hypertension and dilatation. Submitted on June 6, 1962

P6480Asymmetric dimethylarginine (ADMA) predicts altitude-associated hypoxic pulmonary arterial hypertension

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
R H Boeger ◽  
P Siques ◽  
J Brito ◽  
E Schwedhelm ◽  
E Pena ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Logistic Regression ◽  
Oxygen Saturation ◽  
High Altitude ◽  
Sea Level ◽  
Arterial Oxygen Saturation ◽  
Arterial Oxygen ◽  
Arterial Blood ◽  
Pulmonary Arterial

Abstract Prolonged exposure to altitude-associated chronic hypoxia (CH) may cause high altitude pulmonary hypertension (HAPH). Chronic intermittent hypobaric hypoxia (CIH) occurs in individuals who commute between sea level and high altitude. CIH is associated with repetitive acute hypoxic acclimatization and conveys the long-term risk of HAPH. As nitric oxide (NO) is an important regulator of systemic and pulmonary vascular tone and asymmetric dimethylarginine (ADMA) is an endogenous inhibitor of NO synthesis that increases in hypoxia, we aimed to investigate whether ADMA predicts the incidence of HAPH among Chilean frontiers personnel exposed to six months of CIH. We performed a prospective study of 123 healthy male subjects who were subjected to CIH (5 days at appr. 3,550 m, followed by 2 days at sea level) for six months. ADMA, SDMA, L-arginine, arterial oxygen saturation, systemic arterial blood pressure, and haematocrit were measured at baseline and at months 1, 4, and 6 at high altitude. Acclimatization to high altitude was determined using the Lake Louise Score and the presence of acute mountain sickness (AMS). Echocardiography was performed after six months of CIH in a subgroup of 43 individuals with either good (n=23) or poor (n=20) aclimatization to altitude, respectively. Logistic regression was used to assess the association of biomarkers with HAPH. 100 study participants aged 18.3±1.3 years with complete data sets were included in the final analysis. Arterial oxygen saturation decreased upon the first ascent to altitude and plateaued at about 90% during the further course of the study. Haematocrit increased to about 47% after one month and remained stable thereafter. ADMA continuously increased and SDMA decreased during the study course, whilst L-arginine levels showed no distinct pattern. The incidence of AMS and the Lake Louise Score were high after the first ascent (53 and 3.1±2.4, respectively) and at one month of CIH (47 and 3.0±2.6, respectively), but decreased to 20 and 1.4±2.0 at month 6, respectively (both p<0.001 for trend). In echocardiography, 18 participants (42%) showed a mean pulmonary arterial pressure (mPAP) greater than 25 mm Hg (mean ± SD, 30.4±3.9 mm Hg), out of which 9 (21%) were classified as HAPH (mPAP ≥30 mm Hg; mean ± SD, 33.9±2.2 mm Hg). Baseline ADMA, but not SDMA, was significantly associated with mPAP at month 6 in univariate logistic regression analysis (R = 0.413; p=0.007). In ROC analysis, a cut-off for baseline ADMA of 0.665 μmol/l was determined as the optimal cut-off level to predict HAPH (mPAP >30 mm Hg) with a sensitivity of 100% and a specificity of 63.6%. ADMA concentration increases during long-term CIH. It is an independent predictive biomarker for the incidence of HAPH. SDMA concentration decreases during CIH and shows no association with HAPH. Our data support a role of impaired NO-mediated pulmonary vasodilation in the pathogenesis of high altitude pulmonary hypertension. Acknowledgement/Funding CONICYT/FONDEF/FONIS Sa 09I20007; FIC Tarapaca BIP 30477541-0; BMBF grant 01DN17046 (DECIPHER); Georg & Jürgen Rickertsen Foundation, Hamburg

scholarly journals The COngenital HeARt Disease in adult and Pulmonary Hypertension (COHARD-PH) registry: a descriptive study from single-center hospital registry of adult congenital heart disease and pulmonary hypertension in Indonesia

2020 ◽  
Author(s):  
Lucia Kris Dinarti ◽  
Anggoro Budi Hartopo ◽  
Arditya Damar Kusuma ◽  
Muhammad Gahan Satwiko ◽  
Muhammad Reyhan Hadwiono ◽  
...  
Keyword(s):  
Congenital Heart Disease ◽  
Pulmonary Hypertension ◽  
Heart Disease ◽  
Congenital Heart ◽  
Clinical Presentation ◽  
Right Heart Catheterization ◽  
Walking Distance ◽  
Heart Catheterization ◽  
Single Center ◽  
Right Heart

Abstract Backgrounds: The COngenital HeARt Disease in adult and Pulmonary Hypertension (COHARD-PH) registry is the first registry for congenital heart disease (CHD) andCHD-related pulmonary hypertension (PH) in adults in Indonesia.The study aims to describethe demographics, clinical presentation, and hemodynamics data of adult CHD and CHD-related PH in Indonesia. Methods: The COHARD-PH registry is a hospital-based, single-center, and prospective registry which includes adult patients with CHD and CHD-related PH. The patients were enrolled consecutively. For this study, we evaluatedthe registry patients from July 2012 until July 2019. The enrolled patients underwent clinical examination, electrocardiography, chest x-ray, 6-minute walking test, laboratory measurement, and transthoracic and transesophageal echocardiography. Right heart catheterization was performed to measure hemodynamics and confirmthe diagnosis of pulmonary artery hypertension (PAH). Results: We registered 1012 patients during the study.The majority were young, adult females.The majority of CHD was secundum ASD (73.4%). The main symptom was dyspnea on effort. The majority of patients (77.1%)had already developed signs of PH assessed by echocardiography. The Eisenmenger syndrome was encountered in 18.7% of the patients. Based on the right heart catheterization, 66.9% of patients had developed PAH. Patients with PAH were significantly older,had lower peripheral oxygen saturation, had lower 6-minute walking distance, and higher NTproBNP. The NTproBNP level independently predicted the development of PAH among CHD. Conclusions: The COHARD-PH registry is the first Indonesian adult-CHD and CHD-related PH registry. The demographics, clinical presentation, and hemodynamics dataof this registry reflect the situation in developing countries which needs to be compared with similar registries from developed countries.

scholarly journals Adult congenital heart disease and the COVID-19 pandemic

Heart ◽  
2020 ◽  
Vol 106 (17) ◽  
pp. 1302-1309 ◽  
Author(s):  
Robert M Radke ◽  
Tim Frenzel ◽  
Helmut Baumgartner ◽  
Gerhard-Paul Diller
Keyword(s):  
Heart Failure ◽  
Congenital Heart Disease ◽  
Pulmonary Hypertension ◽  
Heart Disease ◽  
High Risk ◽  
Congenital Heart ◽  
Pragmatic Approach ◽  
Right Heart ◽  
High Risk Patients ◽  
Risk Patients

Adults with congenital heart disease (ACHD) may be at high risk in the case of COVID-19. Due to the heterogeneity of ACHD and secondary complications, risk profiles are, however, not uniform. This document aims to give an overview of relevant data and outline our pragmatic approach to disease prevention and management. Based on anatomy and additional physiological factors including symptoms, exercise capacity, heart failure, pulmonary hypertension and cyanosis, we propose a pragmatic approach to categorising patients into low-risk, intermediate-risk and high-risk groups. We regard especially patients with complex cyanotic conditions, those with palliated univentricular hearts, heart failure, severe valvular disease or pulmonary hypertension as high-risk patients. To avoid infection, we recommend self-isolation and exemption from work for these cohorts. Infected ACHD patients with low or moderate risk and without signs of deterioration may be remotely followed and cared for at home while in self isolation. High-risk patients or those with signs of respiratory or cardiovascular impairment require admission ideally at a tertiary ACHD centre. Especially patients with complex, cyanotic disease, heart failure and arrhythmias require particular attention. Treatment in patients with cyanotic heart disease should be guided by the relative degree of desaturation compared with baseline and lactate levels rather than absolute oxygen saturation levels. Patients with right heart dilatation or dysfunction are potentially at increased risk of right heart failure as mechanical ventilation and acute respiratory distress syndrome can lead to increase in pulmonary arterial pressures.

scholarly journals Bone marrow transplantation prevents right ventricle disease in the caveolin-1–deficient mouse model of pulmonary hypertension

2017 ◽  
Vol 1 (9) ◽  
pp. 526-534 ◽  
Author(s):  
Kewal Asosingh ◽  
Nicholas Wanner ◽  
Kelly Weiss ◽  
Kimberly Queisser ◽  
Liya Gebreab ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Pulmonary Hypertension ◽  
Heart Disease ◽  
Deficient Mouse ◽  
Right Heart ◽  
Hematopoietic Stem ◽  
Caveolin 1 ◽  
Key Points ◽  
The Right

Key Points Caveolin-1 deficiency in hematopoietic stem cells induces right heart disease. Healthy BM protects the right heart from maladaptation.

Aortic Saturation Predicted Operability in Acyanotic Congenital Heart Disease with Left-to-Right Shunt

2021 ◽  
Vol 104 (5) ◽  
pp. 740-745
Keyword(s):  
Congenital Heart Disease ◽  
Pulmonary Hypertension ◽  
Heart Disease ◽  
Oxygen Saturation ◽  
Cardiac Catheterization ◽  
Congenital Heart ◽  
Diagnostic Yield ◽  
Invasive Procedure ◽  
Roc Curve Analysis ◽  
Acyanotic Congenital Heart Disease

Background: Cardiac catheterization is the gold standard to determine operability in patients with congenital heart disease (CHD) with left to right shunt and pulmonary hypertension. Objective: To determine if systemic oxygen saturation could be used as a screening tool for acyanotic CHD patients who are operable without having to undergo an invasive procedure. Materials and Methods: All cardiac catheterization data at the King Chulalongkorn Memorial Hospital between 2002 and 2017 were retrospectively reviewed. The inclusion criteria were acyanotic lesion with left-to-right shunt, mean pulmonary artery pressure of 25 mmHg or more, pulmonary overcirculation (Qp:Qs greater than 1), and absence of significant left sided heart disease (LAP or PCWP of less than 15 mmHg). Operability was defined as Rpi of 6 WU.m² or less and Rp:Rs of less than 0.3 in room air. The value of aortic saturation as diagnostic test for operability was analyzed by ROC curve analysis. Results: Two hundred twenty-six patients, with a median age of two years old, (IQR 0.11, 6.00) were divided into pre-tricuspid shunt (ASD, PAPVR, 9.7%), complete atrioventricular (AV) canal defect (13%), and other post-tricuspid lesion (VSD, PDA, 77%). Aortic saturation cut-off values to predict operability with 100% specificity were 98.5% in pre-tricuspid shunt, 100% in post-tricuspid shunt group, and 94.5% in complete AV canal group. Conclusion: In the present study population, aortic saturation may be used to determine operability in acyanotic CHD patients with pulmonary overcirculation. Diagnostic yield is best in patients with complete AV canal defect in whom oxygen saturation of 95% or above identified operability with close to 100% specificity. In other lesions, there appears to be no oxygen saturation that is safe to preclude cardiac catheterization. Keywords: Congenital heart disease, Acyanotic heart disease, Non-cyanotic heart lesions, Pulmonary hypertension, Operability, Aortic saturation

scholarly journals The COngenital HeARt Disease in adult and Pulmonary Hypertension (COHARD-PH) registry: a descriptive study from single-center hospital registry of adult congenital heart disease and pulmonary hypertension in Indonesia

2020 ◽  
Author(s):  
Lucia Kris Dinarti ◽  
Anggoro Budi Hartopo ◽  
Arditya Damar Kusuma ◽  
Muhammad Gahan Satwiko ◽  
Muhammad Reyhan Hadwiono ◽  
...  
Keyword(s):  
Congenital Heart Disease ◽  
Pulmonary Hypertension ◽  
Heart Disease ◽  
Congenital Heart ◽  
Clinical Presentation ◽  
Right Heart Catheterization ◽  
Walking Distance ◽  
Heart Catheterization ◽  
Single Center ◽  
Right Heart

Abstract Backgrounds: The COngenital HeARt Disease in adult and Pulmonary Hypertension (COHARD-PH) registry is the first registry for congenital heart disease (CHD) andCHD-related pulmonary hypertension (PH) in adults in Indonesia.The study aims to describethe demographics, clinical presentation, and hemodynamics data of adult CHD and CHD-related PH in Indonesia. Methods: The COHARD-PH registry is a hospital-based, single-center, and prospective registry which includes adult patients with CHD and CHD-related PH. The patients were enrolled consecutively. For this study, we evaluatedthe registry patients from July 2012 until July 2019. The enrolled patients underwent clinical examination, electrocardiography, chest x-ray, 6-minute walking test, laboratory measurement, and transthoracic and transesophageal echocardiography. Right heart catheterization was performed to measure hemodynamics and confirmthe diagnosis of pulmonary artery hypertension (PAH). Results: We registered 1012 patients during the study.The majority were young, adult females.The majority of CHD was secundum ASD (73.4%). The main symptom was dyspnea on effort. The majority of patients (77.1%)had already developed signs of PH assessed by echocardiography. The Eisenmenger syndrome was encountered in 18.7% of the patients. Based on the right heart catheterization, 66.9% of patients had developed PAH. Patients with PAH were significantly older,had lower peripheral oxygen saturation, had lower 6-minute walking distance, and higher NTproBNP. The NTproBNP level independently predicted the development of PAH among CHD. Conclusions: The COHARD-PH registry is the first Indonesian adult-CHD and CHD-related PH registry. The demographics, clinical presentation, and hemodynamics dataof this registry reflect the situation in developing countries which needs to be compared with similar registries from developed countries.

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