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Gastroesophageal Intussusception (Invagination of the Stomach into the Esophagus) in Dogs

Occurrence: very rare
Location of illness: Chest

Author: Dr. med. vet. Gisa Löwe | Last modified: 06.11.2025

GastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception in dogs is a rare condition in which part of the stomach folds back into the esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis).. This can lead to obstructionobstruction refers to the blockage or narrowing of a hollow organ or canal, which hinders the normal flow of liquids or gases. In dogs and cats, an obstruction can occur in the digestive tract, airways, or urinary tract and often requires immediate medical treatment. of food flow and other health complications.

The most important facts at a glance

Gastroesophageal intussusception in dogs is a rare but serious condition in which part of the stomach invaginates into the esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis).. This anomaly can have both congenitalCongenital means "present from birth" and refers to characteristics or conditions that are already present at birth. This can include genetic disorders, developmental anomalies, or infections transmitted by the mother. and acquired causes. Genetic predispositions, anatomical features such as a shortened diaphragm, or acquired factors such as chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. vomiting and obesityObesity is the medical term for severe overweight, characterized by an excessive accumulation of fat in the body. It is often defined by a body condition score that is above the ideal range. can increase the risk. Symptoms include frequent regurgitationRegurgitation is the reflux of food or liquid from the stomach into the mouth without Vomiting or strong abdominal muscle contractions. It may be a sign of diseases of the esophagus or other gastrointestinal problems. of undigested food, drooling, and emaciation. DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is made through a combination of clinical examination and imaging techniques such as X-rays or endoscopyEndoscopy is a diagnostic procedure that uses an endoscope (a thin, flexible tube with a light source and a camera at the end) to examine and visualize the inside of the body, often for diagnostic or therapeutic purposes..

Treatment depends on the severity and may include surgical procedures to correct the anatomical structures. PostoperativePostoperative refers to the time after a surgical operation. This phase includes recovery and the management of possible complications after the procedure. care is crucial, including a special diet and medications to support healing. In less severe cases, conservative measures can be taken. Early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and treatment significantly improve the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop., while untreated cases can lead to serious complications.

Preventive measures include regular veterinary check-ups, a balanced diet, and a stress-free environment. Research focuses on the genetic causes and improving diagnostic and treatment methods. Through these efforts, scientists hope to improve the quality of life of affected dogs and develop preventive strategies.

Causes

Gastroesophageal intussusception is an anatomical anomalyAn anomaly is a deviation from what is considered normal or expected. In medicine, it often refers to unusual physical or genetic characteristics that may be present at birth or develop later. that can be influenced by both congenitalCongenital means "present from birth" and refers to characteristics or conditions that are already present at birth. This can include genetic disorders, developmental anomalies, or infections transmitted by the mother. and acquired factors. The esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis). and stomach are separated by the lower esophageal sphincterThe esophageal sphincter is a ring of muscle at the top and bottom of the esophagus that controls the passage / transit of food and liquid into the stomach and prevents stomach contents from flowing back into the esophagus., which normally prevents stomach contents from flowing back into the esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis).. In intussusception, however, this mechanism fails, leading to an invagination.

Some dogs may be genetically predisposed, meaning that certain breeds or lines may have a higher susceptibility to this condition. Anatomical features, such as an abnormal esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis). or a shortened diaphragm, could also increase the risk.

Acquired causes can be triggered by factors such as chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. vomiting, obesityObesity is the medical term for severe overweight, characterized by an excessive accumulation of fat in the body. It is often defined by a body condition score that is above the ideal range., or traumaA trauma refers to a physical injury or damage caused by external force. Traumas can range from simple cuts to severe multiple injuries. that increase pressure on the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract and impair normal sphincter function. In some cases, tumors or inflammatory conditions can alter the structure and function of the affected organs, which can also lead to intussusception.

Another potential risk is postoperativePostoperative refers to the time after a surgical operation. This phase includes recovery and the management of possible complications after the procedure. complications following surgery on the stomach or esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis)., where scar tissue or faulty healing could disrupt the normal movement of the digestive organs.

Symptoms

Very common symptoms:

Common symptoms:

Rare symptoms:

The symptoms of gastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception can vary, depending on the degree of invagination and the individual reaction of the dog. Owners often report vomiting, which often contains undigested food or liquid. This vomiting can be chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. or only occur sporadically.

Another common symptom is regurgitationRegurgitation is the reflux of food or liquid from the stomach into the mouth without Vomiting or strong abdominal muscle contractions. It may be a sign of diseases of the esophagus or other gastrointestinal problems., which differs from vomiting in that the food comes up without nausea or warning. This can lead to aspiration, where food particles enter the lungs and cause pneumonia.

Affected dogs often show signs of discomfort or pain in the abdominalThe term “abdominal” refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. area, which can manifest as restlessness, whining, or a hunched posture. Loss of appetite and weight loss are also common, as the dog has difficulty absorbing and digesting food efficiently.

In severe cases, respiratoryRespiratory refers to breathing or the process of breathing. Respiratory diseases affect the respiratory tract and can impair the ability to breathe effectively. distress may occur if pressure on the diaphragm impairs breathing. The dog may also show signs of dehydrationDehydration occurs when the body loses more fluid than it takes in. This can lead to a number of problems, including headaches, Dizziness, and in extreme cases, renal failure or Cardiovascular collapse. or weakness, especially if vomiting is persistentPersistent means lasting or continuing for an extended period. In veterinary medicine, it can refer to chronic diseases or symptoms that do not subside..

Diagnosis

The diagnosis of gastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception begins with a thorough clinical examination and collection of the dog’s medical historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits.. The veterinarian will ask about specific symptoms and perform a physical examination to identify signs of pain or discomfort in the abdominalThe term "abdominal" refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. area.

Imaging procedures play a crucial role in the diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of this condition. X-rays of the thorax and abdomenThe abdomen, also known as the abdominal cavity, is the part of the body located between the rib cage and the pelvis. It houses several important organs, including the stomach, liver, kidneys, intestines, and spleen. can show changes in the position of the stomach or esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis).. A contrast study, in which the dog swallows a special contrast agent, can help determine the exact position and extent of the intussusception.

An endoscopyEndoscopy is a diagnostic procedure that uses an endoscope (a thin, flexible tube with a light source and a camera at the end) to examine and visualize the inside of the body, often for diagnostic or therapeutic purposes. can also be useful to obtain a direct view of the esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis). and stomach. A flexible tube with a camera is inserted into the esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis). to view the inside of the organs and take samples for biopsyA biopsy is a medical procedure in which a small amount of tissue is removed from the body to be examined under a microscope for signs of disease. Biopsies can help diagnose cancer and other conditions. if tumors or inflammatory conditions are suspected.

In addition, blood tests can be performed to assess the dog’s general health and rule out other possible causes for the symptoms, such as infections or metabolicMetabolic refers to metabolism, i.e. the entirety of chemical processes that take place in a living organism to enable life processes. Metabolic disorders can cause a variety of Diseases in Dogs and cats. disorders.

Therapy

Treatment for gastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception in dogs depends on the severity of the condition and the underlying cause. In many cases, surgical intervention is required to correct the anatomical structures and restore normal function to the stomach and esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis)..

Surgical correction may involve repositioning the stomach and strengthening the lower esophageal sphincterThe esophageal sphincter is a ring of muscle at the top and bottom of the esophagus that controls the passage / transit of food and liquid into the stomach and prevents stomach contents from flowing back into the esophagus. to prevent further intussusceptions. In some cases, a gastropexy may be performed, in which the stomach is attached to the abdominalThe term "abdominal" refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. wall to stabilize its position.

After surgery, careful postoperativePostoperative refers to the time after a surgical operation. This phase includes recovery and the management of possible complications after the procedure. care is crucial. The dog may need a special diet that is easily digestible and administered in small, frequent meals to minimize pressure on the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract. Pain relievers and medications to reduce stomach acid may also be prescribed to aid healing.

In less severe cases, or when surgery is not possible, conservative management strategies may be attempted. These include administering medications to improve gastric motility and reduce acid secretion, as well as adjusting feeding practices.

Prognosis and follow-up care

The prognosis for dogs with gastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception varies depending on the severity of the condition and the treatment method chosen. With early diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and successful surgical intervention, the prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. is generally good, and many dogs recover completely.

Without appropriate treatment, however, the condition can cause serious complications, such as chronic malnutrition, recurrentRecurrent refers to a disease that repeatedly returns or worsens after a temporary remission or improvement. pneumonia from aspiration, or even a life-threatening condition from complete obstructionobstruction refers to the blockage or narrowing of a hollow organ or canal, which hinders the normal flow of liquids or gases. In dogs and cats, an obstruction can occur in the digestive tract, airways, or urinary tract and often requires immediate medical treatment. of the esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis)..

Long-term, regular veterinary monitoring is important to ensure that there are no relapses and that the dog does not develop any further complications. In some cases, lifelong adjustments to diet and lifestyle may be necessary.

Prevention

Since the exact causes of gastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception are not always known and genetic factors may play a role, complete preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. is difficult. Nevertheless, certain measures can reduce the risk.

Regular veterinary check-ups can help detect and treat early signs of gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. problems in a timely manner. A balanced diet and avoiding overfeeding can reduce pressure on the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract, thereby reducing the risk of intussusception.

In dogs prone to vomiting or regurgitationRegurgitation is the reflux of food or liquid from the stomach into the mouth without Vomiting or strong abdominal muscle contractions. It may be a sign of diseases of the esophagus or other gastrointestinal problems., the owner should be careful to give them small, frequent meals and minimize stressful situations that could strain the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract.

If certain breeds or lines are known to be genetically predisposed, care should be taken in breeding to select healthy animals to minimize the risk of passing on the susceptibility.

Outlook on current research

Gastroesophageal intussusception in dogs is a rare but serious health problem that has received increasing attention in veterinary medical research in recent years. This condition can lead to significant discomfort and complications as part of the stomach folds into the esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis).. The exact cause of this condition is not yet fully understood, but it is believed that anatomical abnormalities, weakness in the muscular area of the diaphragm, or impaired gastric motility may play a role.

Currently, research is focused on identifying genetic predispositions that may contribute to this condition. Scientists are studying different dog breeds to determine if certain breeds or genetic lines are more susceptible to developing this condition. In addition, research is being conducted on how environmental factors such as diet and physical activity may affect the likelihood of occurrence.

Another focus of research is improving diagnostic procedures. Traditionally, gastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception has been diagnosed by X-rays or endoscopyEndoscopy is a diagnostic procedure that uses an endoscope (a thin, flexible tube with a light source and a camera at the end) to examine and visualize the inside of the body, often for diagnostic or therapeutic purposes., but newer studies are exploring the use of advanced imaging technologies such as magnetic resonance imaging (MRI)Magnetic resonance imaging is an imaging technique that uses strong magnetic fields and radio waves to create detailed images of the inside of the body. It is used in veterinary medicine to diagnose diseases of the brain, spine, and other organs. or computed tomography (CT)Computed tomography (CT) is an imaging technique that uses X-rays and computer technology to create cross-sectional images of the body. It enables a detailed view of bones, organs, and other structures and is used for the diagnosis of injuries, diseases, and for planning medical interventions. to enable more accurate and earlier diagnoses. These technologies could also help detect subtle signs of the disease that may be missed with conventional methods.

New therapeutic approaches are also being explored. Surgical correction is currently the most common treatment, but researchers are investigating minimally invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. techniques that could reduce the risk of complications and recovery time after surgery. In addition, there is interest in developing drug treatments that could alleviate symptoms and slow the progressionProgression refers to the advancement or worsening of a disease over time. It describes an increase in the severity or extent of the disease symptoms. of the disease. Clinical trials in dogs with gastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception are being conducted to evaluate the efficacy and safety of such treatments.

In the long term, researchers hope to identify preventive measures that could reduce the risk of developing this condition. This includes educating dog owners about the importance of a balanced diet and regular exercise, as well as early detection of symptoms that may indicate gastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception. Through these comprehensive research efforts, it is hoped that the quality of life of dogs suffering from this condition can be significantly improved.

Frequently asked questions (FAQs)

What is gastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception in dogs? GastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception is a condition in which part of the stomach folds into the esophagusThe esophagus is a muscular tube that connects the pharynx to the stomach. It transports food from the mouth to the stomach through rhythmic contractions (peristalsis)., which can lead to significant discomfort and potential complications.
What symptoms can occur in a dog with this condition? Common symptoms include vomiting, excessive salivation, discomfort when swallowing, loss of appetite, and in severe cases, respiratoryRespiratory refers to breathing or the process of breathing. Respiratory diseases affect the respiratory tract and can impair the ability to breathe effectively. distress.
How is gastroesophagealGastroesophageal refers to the stomach (gastro-) and the esophagus. The term is often used in connection with gastroesophageal reflux, in which stomach contents flow back into the esophagus, which can lead to irritation and Inflammatory conditions. intussusception diagnosed? DiagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. is usually made by imaging techniques such as X-rays, endoscopyEndoscopy is a diagnostic procedure that uses an endoscope (a thin, flexible tube with a light source and a camera at the end) to examine and visualize the inside of the body, often for diagnostic or therapeutic purposes., or more advanced methods such as MRI or CT.
Can all dog breeds be affected by this condition? Yes, theoretically any dog breed can be affected, but some breeds may be more susceptible due to genetic predispositions. Research is underway to better understand these predispositions.
What treatment options are available for affected dogs? The most common treatment is surgical correction. However, minimally invasiveInvasive describes medical procedures or pathogens that enter the body or penetrate tissue. In medicine, invasive procedures can range from minimally invasive techniques to open surgery. techniques and drug treatments are also being explored.
Can the condition be treated without surgery? In some cases, medications can be used to relieve symptoms, but surgery is often necessary to permanently fix the problem.
What is the success rate of surgical treatment? The success rate is generally high, especially if the condition is diagnosed and treated early. However, complications can occur.
Can preventive measures be taken to reduce the risk? Although no specific preventive measures are known, a healthy diet and regular exercise can be helpful. It is also important to recognize the symptoms early and seek veterinary advice at the first signs.
How long is the recovery time after surgery? The recovery time can vary depending on the severity of the condition and the dog’s individual healing process, but is usually several weeks.
Where can I find more information about this condition? More information can be found at your veterinarian or in veterinary medical publications. Research institutions that focus on canineCanine refers to anything related to dogs. The term is used to describe characteristics, diseases, or specific aspects that specifically affect dogs. health can also provide valuable resources.

You can find an interesting overview of gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. problems in dogs, supplemented with information on the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. microbiome and the importance of probiotics, here: https://petsvetcheck.de/fachbeitrag/magen-darm-probleme-beim-hund/