Skip to main content

Pulmonary stenosis in dogs - Symptoms and treatment

Pulmonary stenosis in dogs - Symptoms and treatment

Pulmonary stenosis in dogs is usually asymptomatic and those that show clinical signs from the first year of age.After the persistent arterial duct, pulmonary stenosis is the second most common congenital cardiovascular malformation in dogs.

Being a congenital pathology , It appears at the time of birth and can be associated with other pathologies such as interventricular defects.Keep reading this article from Animals and Pets Online to learn a little more about the anatomy of the heart and pulmonary stenosis in dogs , its symptoms and treatment .

The heart and pulmonary stenosis

The heart is a hollow organ that is formed by four cavities: right atrium, left atrium, right ventricle and left ventricle.In turn, these chambers are connected to each other and to the blood vessels by means of valves.

Then we have the left heart , which is responsible for the oxygenated blood entering through the left atrium to the left ventricle and, through a contraction, go to the general circulation pumping blood throughout the body.

And on the other hand we have the right heart , which is responsible for collecting blood from the rest of the body to lead it to the lungs where it will be purified.

The right ventricle ejects blood into the pulmonary circulation through the pulmonary artery.This blood flow is controlled by the so-called pulmonary valve.

Pulmonary stenosis consists of a narrowing of the ventricular outflow tract right .This narrowing can be located anatomically at the valve level (the most common variant in the dog), subvalvular or supravalvular, however, the clinical consequences in all three cases are the same.

Pulmonary stenosis affects both sexes, predominantly in males and in breeds that have a certain predisposition, such as the beagle, the boxer, the English bulldog, the French bulldog or the schnauzer among others.

Symptoms of pulmonary stenosis in dogs

Young and resting animals can be asymptomatic and in severe cases syncopes (loss of consciousness and body posture) can occur.

Due the narrowing of the valve, there is a greater systolic pressure (of contraction) so that the right ventricle will first dilate and then its walls will concentrically hypertrophy to compensate.

Cardiac output may fall due to reduction of diastolic volume and arrhythmias can be generated.If there is an associated tricuspid dysplasia, there may be right congestive insufficiency, that is, accumulation of fluid in the abdomen.Also prominent jugular pulse can be observed.

Diagnosis of pulmonary stenosis in dogs

Because it is a pathology that can sometimes be asymptomatic, the veterinarian can detect this disease during one of the routine visits of the dog.The tests to be performed are:

  • During cardiac auscultation a strong ejection murmur can be heard in the left base that radiates to the right cranial thorax.
  • The electrocardiogram may be normal or a pattern of Enlargement of the right ventricle.Ventricular and supraventricular arrhythmias can also be observed.
  • In thoracic radiographs a normal cardiac silhouette can be observed or a right ventricular cardiomegaly can be seen.
  • The definitive diagnosis is given with an echocardiographic study, as well as its classification and severity.
  • It must be distinguished from other pathologies such as pulmonary hypoplasia, subaortic stenosis, tetralogy of Fallot, etc.
Pulmonary stenosis in dogs - Symptoms and treatment

Treatment and prevention of pulmonary stenosis in dogs

When it is a symptomatic cause , ascites (diuretics), arrhythmias (anti arrhythmic) will be treated improve cardiac output (pimobendan), reduce the volume of heart load and blood pressure (ACEIs), etc.

On the contrary, if it is a dietary cause the use of salt in the dog's diet will be restricted and omega 3 fatty acid supplementation will be needed.

It will also be essential to restrict intense physical exercise .

The dog may also need surgical treatment .There are different techniques such as valvulotomy, balloon catheter dilation, pericardium patch, ventriculoarterial duct implantation with or without, etc.

It is a disease with high mortality that requires a rigorous follow-up by the veterinarian, therefore we recommend strictly following the indications of the professional.In addition, dogs carrying this disease should not be used as breeders, because to its genetic character.

References

  • Cardiovascular conditions in small animals.Berenian, Guillermo C.
  • Congenital malformations in domestic animals.Joaquin Camon Urgel.

This article is merely informative, at Animals and Pets Online we have no power to prescribe veterinary treatments or make any type of diagnosis.We invite you to take your pet to the veterinarian in the event that he presents any type of condition or discomfort.

If you want to read more articles similar to Pulmonary stenosis in dogs-Symptoms and treatment , we recommend that you enter our Cardiovascular Diseases section.

Comments

Popular posts from this blog

Can I bathe my dog ​​if I just wormed him?

When is it a first time in adopting a dog, it is normal that many doubts arise about what is best for them and when it is advisable to do everything, so Animals and Pets Online solves all the questions that arise. Deworming your dog periodically is necessary to preserve their health and avoid possible diseases from the action of microorganisms, external and internal parasites, among others.If you do not know when you should bathe your dog after a deworming , keep reading this article. Why deworm the dog? You may think that deworming is not necessary, but the truth is that thanks to it you avoid your dog much discomfort, in addition to prevent diseases transmitted by parasites . Among the main parasites, both external and internal, are ticks, fleas, lice, losacaros and intestinal worms, among many others.Pruritus, hair loss, diarrhea, tick disease, and even death in the most serious cases, they are part of the consequences that cause these beings to stay in the body of your furr...

How to know if my rabbit is male or female?

Rabbits are adorable and very intelligent animals , which is why they are increasingly popular as companion animals.Likewise, their tender appearance and small size make them good companions for apartments. When you recently adopt a rabbit, or when a litter of rabbits has been born, you may not know the sex of each one, so we will help you discover it.If you want to discover how to know if your rabbit is male or female , keep reading this article from Animal Expert. When can you see the sex of your rabbit? It is important to note that in newborn rabbits knowing sex is almost impossible , especially if you have no experience in it.However, if you have a partner or a litter it is very important to know if they are female or male, whether you want to give them up for adoption or to avoid an unwanted pregnancy, as rabbits reproduce quickly and at an early age. From the eighth week will be a good time to examine your rabbits for indicators of their sex.Rabbits are extremely ner...

How often should I change my cat's sand?

The sandbox is a tool essential for the daily hygiene of our felines.We must ensure that the cleaning we do is adequate, with the aim of preventing health problems and even behavioral problems that are related to the lack of cleaning.This very important aspect is common that doubts arise from the caretakers when choosing the sand, the sandbox itself, which is the best place to install it or how and how often to clean it. Maybe you wonder how often change the silica sand or binder, the recommended amount of sand or the frequency of complete sand change, for this reason, in this article of Animals and Pets Online we will focus on explaining how much we should change the sand of our cat .We will see the importance of maintaining the hygiene of a reindeer and how to preserve it in the best conditions. The importance of the sandbox for cats From a very young age, kittens learn to use the sandbox and, except for behavioral disorders or specific diseases, they will continue to use ...

The 10 rarest pets in the world

Dogs, cats or rabbits are extraordinary and most popular pets around the world.Millions of people adopt each of these animals every year.However, there is another group of people who draw outside the lines and prefer more original and exotic pets.They appreciate that they are something more wild, different and even rare Without a doubt, it will depend on each personality.That if, before considering having one of these pets, it is best to make sure what their care and maintenance are and, above all, in what environment will it be a happier creature. If you are part of this untraditional group and you are considering the idea of ​​having a pet but you have not decided, continue reading this Animal Expert article on the 10 weirdest pets of the world . 1 miniature donkey A giant teddy.The miniature donkey is cute, cuddly, good with children (not an animal to ride) and very smart, despite what some may think Although they are not as big as their other family donkeys, they still r...

How to educate my shiba inu?

The shiba inu race is one of the oldest of the type spitz .They are very popular in Japan and little by little they are getting more popularity in the West.It is a very loyal breed to its owners and adapts perfectly to any environment, both in the city and in the countryside. These are very independent, intelligent and firm dogs.Although their education does not require great efforts, you should dedicate a little time each day to get the best results and get a great partner. Yes You have thought about adopting a dog of this breed and you are wondering how to educate my shiba inu, keep reading this article from Animal Expert. The character of shiba inu If you wonder how to educate my shiba inu, you should also ask yourself how their behavior is, since depending on the character of a dog, its training should be one way or another. Some of the peculiarities of this breed are its independence and nervousness.As a general rule they are silent dogs, although being reluctant to str...

Why does my cat meow when I stroke it?

The meow is one of the forms of communication characteristics of cats.This typical sound of them presents multiple variants, which will depend on what our cat wants to "tell us." There are more or less "talkative" cats and , among the most likely to communicate in this way, we will have the opportunity to observe a wide repertoire of sounds. It will be our job to learn to interpret them and, therefore, to communicate with our companion.In this article from Animals and Pets Online we will explain the meaning of some of the most common meows. Why does my cat meow when I stroke it? Find out below! The meowing of cats and their meaning As we have commented, the meow will be a form of communication very important for cats with more desire to interact with us, since this sound is more used in relationships with humans than with other cats.To answer the question of why a cat meows when they pet it, we must first know the meanings of the most common meowings...

Why do captive killer whales have their dorsal fin folded?

There is much controversy linked to this issue.animal advocates claim that the dorsal fin bending is due to the unsanitary conditions of captivity and confinement itself, while those working in aquariums claim that it is not incompatible with life or a sign of poor health in killer whales. In this Animal Expert article we will talk about why orcas in captivity have the dorsal fin folded and if this occurs in the wild. Physical characteristics of killer whales With its black and white coloration, killer whales or killer whales are one of the most easily recognizable aquatic mammals.The killer whales are a kind of dolphin with a maximum body length of 9 meters in males and 7.7 meters in females.In addition, increasing sexual dimorphism, males develop fins much larger than females, including pectoral fins, tail and dorsal fin, which can reach 1.8 meters in males .Newborn killer whales weigh approximately 200 kilograms and can measure between 2 and 2.5 meters in length.As a curious ...

My cat is obsessed with food

Your cat does not eat only everything you put, but also anything do you fall to the ground? Also, does he go crazy every time he gets the scent of a can of food that you've opened and begs for food constantly? The obsession with food is a very common problem for many caregivers of cats that do not know how to avoid or correct it, knowing that it is not a healthy dynamic for the animal.In fact, your cat could have bad behaviors and aggressive attitudes with its surroundings if it is not pleased. In this Animals and Pets Online article we will explain what to do if your cat is obsessed with food , detailing the main causes and some of the treatments that you can apply to solve this problem. Why is your cat obsessed with food? Let's go straight to the source, the food.In this area we could have the first cause.Although your cat is eating all day, is not feeding enough , thing which is very different.Analyze the physical constitution of your cat and see if it is abnorm...

Canine leptospirosis - Symptoms and contagion

When we talk about animal health, we not only refer to the absence of disease but to a state of well-being as a result of covering all the needs of our pet, both physical and psychological and social. But as far as physical health is concerned, we must clarify that there are very few diseases exclusive to human beings , so that our dog can suffer the same pathologies as us. Today at Animals and Pets Online we talk about the symptoms and contagion of canine leptospirosis , a disease of great importance since that it is a zoonosis, that is, a pathology that can be transmitted from animals to humans. What is canine leptospirosis Canine leptospirosis is an infectious disease that is also known as dog typhus , is caused by a genus of bacteria called Leptospira , although those that Commonly affect the dog are the Leptospira Canicola and the Leptospira Icterohaemorrhagiae . This group of bacteria affects most domestic and wild mammals, although also cold-blooded animals and ...

How to prevent my cat from plowing everything?

Aranar is an innate behavior in cats, however, when It is carried out in a generalized and compulsive way in our furniture or fabrics, it can become a very undesirable and annoying behavior .In addition, we must also ask ourselves if there is any kind of problem that is promoting this behavior, such as it can be a possible problem of stress and anxiety. Does your cat plow absolutely everything? In this article of Animal Expert we will explain why cats are plowing and most importantly: how to prevent your cat from plowing everything .We will offer you driving guidelines, education tips and we will also review some products of the market that you can use or discard in this process.Start solving this problem today! Why does my cat plow everything? If we study the cat's ethogram , that is, the set of typical behaviors of the species, we will observe that spreading is representative behavior and that it also has different meanings . Cats begin to plow when they are puppies ...