Not exact matches
Pulmonary hypertension involves an increase
of blood pressure in the
arteries of the
lung that can lead to heart failure.
The de-oxygenated and carbon dioxide rich blood is pumped out
of the right side
of your heart to your
lungs via your
pulmonary artery.
When a living heartworm and the inflammation it causes blocks one
of these
pulmonary arteries, the
lung tissue downstream from the blockage is injured and the cat's ability to breath is affected.
Adult worms (males ~ 15 cm in length, females ~ 25 cm) develop primarily in the
pulmonary arteries of the caudal
lung lobes over the next 2 - 3 mo..
From the ventricles, blood is pumped out into the
lungs through the
pulmonary artery (on the right) or out to the body through the aorta (on the left) through a second series
of one - way valves (the pulmonic valve on the right and the aortic valve on the left).
The name is descriptive — these worms lodge in the right side
of the heart and the
pulmonary arteries (that send blood to the
lungs), though they can travel through the rest
of the body and sometimes invade the liver and kidneys.
They live in the right heart chambers and
pulmonary arteries — the
lungs —
of infected dogs.
About 50 %
of cats with heartworm disease will have evidence
of enlarged
pulmonary arteries on x-rays
of their
lungs.14 However, these findings can be found with other parasitic infections such as roundworms (Toxocara) and lungworms (Aelurostrongylus).
[1] The parasite is commonly called «heartworm»; however, adults often reside in the
pulmonary arterial system (
lung arteries), as well as the heart, and a major effect on the health for the animal is a manifestation
of damage to the
lung vessels and tissues.
X-rays
of the chest
of a heartworm - infected cat may show an increased width
of the
pulmonary arteries and focal or diffuse opacities in the
lungs.
Tiny heartworm larvae are injected into the blood stream where they mature over the span
of about 6 months until they reach adulthood in the veins
of the
pulmonary artery and
lungs, where they reproduce and release microfilaria into the blood for the mosquito to ingest and pass on.
One
of the mechanisms
of the body to bypass the
lungs of the pup is to flow the blood directly from the
pulmonary artery to the aorta.
The
pulmonary veins were slightly larger than the
pulmonary arteries; the
lung parenchyma with diffuse interstitial pattern in the area
of the hilus.
They will grow and develop and move to progressively larger
arteries of the
lungs until they finally arrive in the main
pulmonary artery.
Most
of the worms will actually be in the
pulmonary arteries (taking blood from the right side
of the heart to the
lungs to get oxygen).
In re: «throwing a worm» (lousy description) The worms live in the larger diameter
pulmonary arteries (that take blood from the right side
of the heart to the
lungs to get oxygen), pretty close to the heart.
Heartworms are potentially fatal parasitic worms living in the
pulmonary arteries,
lungs and hearts
of both cats and dogs.
Adult worms reside primarily in the
pulmonary arteries of the caudal
lung lobes, but can move into the right ventricle
of the heart if the worm burden is high.
But what is worse is that the right side
of the heart and
pulmonary artery (
pulmonary trunk) were not designed to handle the high - pressure blood arriving through the PDA from the infant's aorta, nor was the left side
of the heart designed to accept the larger - than - normal volume
of blood now coming back from the
lungs.
The
pulmonary arteries connect the heart to the
lungs; they are essential for transfer
of oxygen and other nutrients throughout the body, and for removal
of carbon dioxide and other waste products from circulation.
Sudden death is thought to be due to a reaction within the
lungs to the young heartworms, or to a reaction to dead or live heartworms entering the
pulmonary arteries and obstructing the flow
of blood to the
lungs.
Many cats with heartworms have an increase in the size
of the
pulmonary arteries, or the
arteries may appear blunted (suddenly come to an apparent stop) on their way to the
lungs, due to worms obstructing them.
Adult heartworms can grow 10 to 12 inches in length and make their home in the right side
of the heart and
pulmonary (
lung)
arteries, often causing
lung disease and heart failure.
Pulmonic stenosis is a congenital heart defect
of the semilunar valve that is between the right ventricle and the
pulmonary artery (great vessel that takes blood to the
lungs).
Part
of this clot can easily detach and flow with the blood stream up the inferior vena cava, through the right side
of the heart and into the
pulmonary artery causing a PE which, if large enough, may obstruct the circulation to the
lung and strain the heart, causing almost instant death.
Pulmonary Embolism: The
arteries in the
lungs are blocked, usually by a blood clot that has traveled from other areas
of the body.
A family blog says, «Idiopathic is the term used for «unknown cause» and
pulmonary hypertension as defined by the Pulmonary Hypertension Association of Canada as «a disease affecting the arteries of t
pulmonary hypertension as defined by the
Pulmonary Hypertension Association of Canada as «a disease affecting the arteries of t
Pulmonary Hypertension Association
of Canada as «a disease affecting the
arteries of the
lungs.