Pulmonary Vascular Resistance Increased: Causes & Reasons

Possible Causes for Pulmonary Vascular Resistance Increased

[…] in PAH Pulmonary circulation obstruction results from underlying factors Increased pulmonary vascular resistance Contrast with the normal low-resistance, high compliance [fpnotebook.com]

Pathophysiologic mechanisms that cause pulmonary hypertension include Increased pulmonary vascular resistance Increased pulmonary venous pressure Increased pulmonary vascular [merckmanuals.com]

[…] hypertension (PH) characterized by abnormalities in the small pulmonary arteries (precapillary PH) that produce increased pulmonary arterial pressure (PAP) and vascular resistance [unboundmedicine.com]

Pulmonary Hypertension Primary Type 3

Eisenmenger Syndrome

pulmonary vascular remodeling (fixed increased pulmonary vascular resistance). [thoracickey.com]

[…] from chronically increased pulmonary blood flow. [ncbi.nlm.nih.gov]

vascular disease). 9 10 As a result of these events, pulmonary vascular resistance increases and ultimately leads to a decrease in left to right shunting. [phaonlineuniv.org]

Secondary Pulmonary Hypertension

Sildenafil reduced pulmonary vascular resistance and increased cardiac output with exercise (P CONCLUSIONS: Phosphodiesterase 5 inhibition with sildenafil improves exercise [ncbi.nlm.nih.gov]

Abstract In 4 patients with primary pulmonary hypertension, there was a -24% +/- 20% decrease in pulmonary vascular resistance, a significant increase of cardiac index by [ncbi.nlm.nih.gov]

Hemodynamically, PAH can be caused by increased right ventricular output, increased pulmonary systemic vascular resistance, or increased pulmonary venous pressure. [cvpharmacology.com]

Persistent Fetal Circulation

Other anatomic lesions can increase pulmonary vascular resistance and cause right-to-left shunting across the PDA, including alveolar-capillary dysplasia and congenital pulmonary [clinicaladvisor.com]

The authors suggest that chronic maternal hypoxemia during pregnancy may cause polycythemia and increased pulmonary vascular resistance in the newborn, leading to persistent [ncbi.nlm.nih.gov]

Factors that increase pulmonary vascular resistance include acidosis, hypoglycemia, hypothermia, and polycythemia. Pathology: Not applicable. [virtualpediatrichospital.org]

Acute Cor Pulmonale

Increased pulmonary vascular resistance --> increased RV afterload, decreased CO --> RV failure What are the two major causes of cor pulmonale? [quizlet.com]

This leads to thrombi formation that further increases pulmonary vascular resistance and pulmonary hypertension. 9. 8. [slideshare.net]

In response to an acute increase in pulmonary vascular resistance, the right ventricle distends, producing an increase in right ventricular systolic and diastolic volume, [what-when-how.com]

Pulmonary Arterial Hypertension

Pulmonary arterial hypertension (PAH) is a chronic and life-threatening disease characterised by progressive vascular remodelling that leads to increased pulmonary vascular [radcliffecardiology.com]

Abstract Pulmonary arterial hypertension (PAH) is a chronic pulmonary vascular disease characterized by increased pulmonary vascular resistance (PVR) leading to right ventricular [ncbi.nlm.nih.gov]

[…] is a life-threatening and progressive disease of various origins characterized by pulmonary vascular remodeling that leads to increased pulmonary vascular resistance and pulmonary [pharmrev.aspetjournals.org]

Left-to-Right Cardiac Shunt

The key pathological change is increased pulmonary vascular resistance (PVR) and pressure secondary to increased blood flow from the left-to-right shunt. [ncbi.nlm.nih.gov]

An increase in pulmonary flow, vascular resistance, or both can result in pulmonary hypertension. [banglajol.info]

[…] years, pulmonary vascular resistance increases and right-to-left shunt develops at the chambers or great arteries. [emedicine.medscape.com]

Pulmonary Vascular Disorders

pulmonary vascular resistance or right ventricular dysfunction. [pediatrics.aappublications.org]

Vascular obstruction to pulmonary arterial flow, reflected by increased pulmonary vascular resistance, is an important parameter that defines POPH. [mayoclinic.org]

Clots cause obstruction, which increases the pulmonary vascular resistance. [proprofs.com]

Familial Pulmonary Arterial Hypertension

Cor Pulmonale

Increased pulmonary vascular resistance --> increased RV afterload, decreased CO --> RV failure What are the two major causes of cor pulmonale? [quizlet.com]

[…] the pulmonary vascular resistance. [radiopaedia.org]

In chronic respiratory disease (CRD) PH is "pre-capillary," due to an increase of pulmonary vascular resistance (PVR). [ncbi.nlm.nih.gov]

Congenitally Uncorrected Transposition of the Great Arteries

The increase in pulmonary vascular resistance (PVR), as might occur due to acidosis or airway pressure overload, should be avoided. [kink.onesearch.id]

Minimization of intracardiac shunting were typically achieved via avoidance of decrease in systemic vascular resistance and increase in pulmonary vascular resistance (PVR) [medcraveonline.com]

Fixed pulmonary vascular resistance prevents any increase in pulmonary flow in response to the increased cardiac output of pregnancy. [clinicaladvisor.com]

Endocardial Cushion Defect

It also lessens the possibility that the pulmonary vascular resistance will increase. [cincinnatichildrens.org]

This is known as increased pulmonary vascular resistance (PVR) or pulmonary vascular disease and this condition is more common in infants with Down syndrome. [chd-uk.co.uk]

Called increased pulmonary vascular resistance (PVR), or pulmonary vascular disease, this condition is more common in infants with Down syndrome. [cincinnatichildrens.org]

Atrioventricular Septal Defect

Severe pulmonary vascular disease with markedly increased pulmonary vascular resistance cannot be caused nor explained by an interatrial communication alone. [encyclopedia.lubopitko-bg.com]

Atrioventricular septal defect (complete form) Pulmonary blood flow, all chamber volumes, and often pulmonary vascular resistance are increased. [merckmanuals.com]

A genetic predisposition to develop pulmonary vascular disease is present in patients with severely increased pulmonary vascular resistance; the pulmonary vascular bed is [encyclopedia.lubopitko-bg.com]

Basilar Artery Thrombosis with Occlusion of a Precerebral Artery

resistance pulmonary decreased', 'vascular resistance systemic decreased', 'vascular resistance systemic increased', 'venous pressure abnormal', 'venous pressure decreased [definedterm.com]

', 'scan myocardial perfusion abnormal', 'stroke volume decreased', 'stroke volume increased', 'troponin i increased', 'troponin t increased', 'troponin increased', 'vascular [definedterm.com]

[…] decreased', 'pulse pressure increased', 'pulse waveform abnormal', 'qrs axis abnormal', 'right ventricular systolic pressure decreased', 'right ventricular systolic pressure increased [definedterm.com]

Atrial Septal Defect - Atrioventricular Conduction Defects Syndrome

It also lessens the possibility that the pulmonary vascular resistance will increase. [dsdaytoday.blogspot.com]

Atrioventricular septal defect (complete form) Pulmonary blood flow, all chamber volumes, and often pulmonary vascular resistance are increased. [merckmanuals.com]

As the pulmonary vascular resistance drops, pulmonary blood flow increases. [clinicaladvisor.com]

Pulmonary Venous Hypertension

Increased pulmonary vascular resistance (PVR), commonly found in pre-capillary PH, is a condition that shares many symptoms with CHF, and is also associated with poor prognosis [diva-portal.org]

High-Altitude Pulmonary Edema

Cardiac catheterizations reveals mild pulmonary hypertension associated with increased pulmonary vascular resistance, the degree of pulmonary hypertension being higher under [pediatrics.aappublications.org]

Rapid remodeling of the small precapillary arteries may prevent HAPE but increase pulmonary vascular resistance leading to pulmonary hypertension in long-term high altitude [ncbi.nlm.nih.gov]

Hypoxic conditions prevailing at HA result in pulmonary vasoconstriction which inturn leads to increase in pulmonary vascular resistance. [clinical-and-molecular-endocrinology.imedpub.com]

Chronic Thromboembolic Pulmonary Hypertension

vascular resistances. [bloodjournal.org]

For example, when baseline pulmonary vascular resistance exceeds 900 dyn·sec·cm –5, mortality has been shown to increase. 22 Reductions in pulmonary vascular resistance have [doi.org]

For example, when baseline pulmonary vascular resistance exceeds 900 dyn·sec·cm–5, mortality has been shown to increase.22 Reductions in pulmonary vascular resistance have [nejm.org]

Acquired Ventricular Septal Defect

As the pulmonary vascular resistance drops, pulmonary blood flow increases. [clinicaladvisor.com]

Other non medical treatment is surgically creating pulmonic stenosis or pulmonic banding in order to reduce shunt flow by increasing pulmonary vascular resistance. [lsu.edu]

If appropriate management is not carried out promptly in infants with large VSDs excessive pulmonary blood flow may lead to increase in pulmonary vascular resistance and pulmonary [patient.info]

Drug-Induced Pulmonary Arterial Hypertension

Distal pulmonary arterioles have an imbalanced vasoconstrictor/vasodilator and proliferation/apoptosis (proliferation dominant) milieu leading to increased pulmonary vascular [escardio.org]

Pulmonary Hypertension

Increased pulmonary venous pressure Increased pulmonary vascular resistance is caused by obliteration of the pulmonary vascular bed and/or by pathologic vasoconstriction. [msdmanuals.com]

Finally, riociguat increased 6-minute walk distance, decreased pulmonary vascular resistance, and improved functional class, whether used as monotherapy or as sequential combination [merckmanuals.com]

Cardiogenic Pulmonary Edema

With all this occurring, pulmonary vascular resistance increases causing a shift of the intraventricular septum. [en.wikipedia.org]

The increase in pulmonary blood volume along with a decrease in cardiac output will increase the pulmonary transudative pressures. [en.wikipedia.org]

The ventricular septal shift to the left causes a left ventricular diastolic dysfunction, which further increases pulmonary hydrostatic pressures. [6] Neurogenic causes [7 [en.wikipedia.org]

High-Altitude Pulmonary Edema

Pulmonary vascular resistance increased by 72 and 70 dyne. s. cm-5. m2 in the presence of decreased arterial PO2 to 40 and 43 mmHg, respectively, which is in the average of [ncbi.nlm.nih.gov]

Increases in PAP and pulmonary vascular resistance to hypoxia (16% oxygen) suggest that these children have a reactive pulmonary pressor response and hence are susceptible [ncbi.nlm.nih.gov]

The critical pathophysiology is an excessive rise in pulmonary vascular resistance or hypoxic pulmonary vasoconstriction (HPV) leading to increased microvascular pressures [ncbi.nlm.nih.gov]

Acyanotic Congenital Heart Disease

resistance in the pulmonary and systemic circulations. • Resistance in the pulmonary vascular bed is commonly normal in children with ASD, and increase in volume load is usually [slideshare.net]

[…] mm Hg, can increase pulmonary vascular resistance. [rjmatthewsmd.com]

On day 2, pulmonary vascular resistance is lower, so left to right shunting through the VSD increases making the murmur louder. [hawaii.edu]

Right Ventricular Dilatation

[…] ventricular dysfunction can develop in this setting, as a consequence of increased pulmonary vascular resistance. [rwjms1.umdnj.edu]

Description of the problem What every clinician needs to know Acute right heart syndromes are caused when pulmonary vascular resistance increases beyond the capacity of right [clinicaladvisor.com]

Progressive remodeling of the pulmonary vasculature leads to increased vascular resistance and, consequently, increased pulmonary arterial pressure, resulting in right ventricle [jscimedcentral.com]

Inhalation of Nitric Oxide

RESULTS: In the first and second cases, NO inhalation resulted in a decrease in pulmonary artery pressure, in a decrease in pulmonary vascular resistance and in an increase [ncbi.nlm.nih.gov]

[…] embolism increases pulmonary vascular resistance and may lead to acute right ventricular failure and cardiocirculatory collapse and respiratory failure, possibly resulting [ncbi.nlm.nih.gov]

PaO2 increases and pulmonary vascular resistance may decrease by adding NO-containing air, derived from the patient's own nose, to the inspired air. [ncbi.nlm.nih.gov]

Atrial Septal Defect Type 1

increased or unknown pulmonary vascular resistance, small pulmonary arteries, and borderline ventricular function. [ncbi.nlm.nih.gov]

Ultimately, the increase in the pulmonary artery pressure and vascular resistance may result in a bidirectional atrial shunt with cyanosis (Eisenmenger syndrome) during mid [merckmanuals.com]

Hypoplastic Left Heart Syndrome

The anomalous vessel to the left lung may cause increased pulmonary vascular resistance, which has implications for the long-term management of hypoplastic left heart syndrome [ncbi.nlm.nih.gov]

Initially, give PGE1 to keep the ductus arteriosus open, give as little oxygen as possible (to avoid decreasing pulmonary vascular resistance and increasing pulmonary flow [msdmanuals.com]

vascular resistance and thus increases the relative proportion of the right ventricle output that flows to the lungs rather than through the patent ductus arteriosus to the [msdmanuals.com]

Hepatopulmonary Syndrome

increase of the pulmonary vascular resistances). [moh-it.pure.elsevier.com]

[…] arterioles and an increase in pulmonary vascular resistance with an eventual increase in pulmonary artery pressure and right ventricular dysfunction. [anesthesiology.pubs.asahq.org]

In contrast, portopulmonary hypertension is predominantly owing to generalized vasoconstriction that leads to remodeling and an increase in pulmonary vascular resistance, [ncbi.nlm.nih.gov]