Twisted Spleen in Dogs (Splenic Torsion)
- Occurrence: rarer
- Location of disease: Abdomen/pelvis
When to visit the vet?
Emergency see a veterinarian immediately
Definition
Splenic torsion in dogs refers to the rotation of the spleen around its vascular axis, which leads to an interruption of the blood supply and a disruption of spleen function.
Das Wichtigste auf einen Blick
Splenic torsion in dogs is a condition in which the spleen rotates around its own axis, which can impair the blood supply. This problem often occurs in large dog breeds with deep chests, such as Great Danes and Dobermans. Although the exact cause is not always clear, genetic predisposition, structural anomalies, and excessive mobility of the spleen can play a role. Splenic torsion can occur in isolation or in connection with gastric torsion. Symptoms include loss of appetite, Vomiting, Abdominal pain, Restlessness, and pale mucous membranes. Diagnosis is made through clinical examinations, X-rays, and ultrasound. Treatment usually requires surgery in which the spleen is removed. The prognosis is good with early treatment but can worsen with complications such as tissue damage. Preventive measures include avoiding large amounts of food and excessive activity after meals. Research focuses on genetic factors, preventive strategies, and advanced diagnostic methods. Modern imaging procedures and minimally invasive surgical techniques are being developed to improve diagnosis and shorten recovery time. A multidisciplinary approach could significantly improve the prognosis for dogs with splenic torsion.
Ursachen
The spleen is an important organ in the dog’s immune system and plays a central role in producing and breaking down blood cells, as well as storing blood. Anatomically, it is located in the upper left quadrant of the abdomen and is connected to the stomach and the abdominal wall by ligaments. These ligaments allow some mobility, but excessive movement or laxity can lead to torsion.
Splenic torsion often occurs in connection with gastric torsion (gastric dilatation-volvulus, GDV), but it can also occur on its own. Large dog breeds with deep chests, such as Great Danes, Setters, or Dobermans, are particularly at risk. The exact cause of splenic torsion is not always clear, but predisposing factors such as genetic predisposition, structural abnormalities, or excessive mobility of the spleen may play a role.
Another factor can be excessive filling of the spleen with blood (splenomegaly), which is caused by various diseases or conditions such as infections, Inflammatory conditions, or Tumors. This enlarged spleen is more prone to torsion. There is also evidence that certain behaviors, such as excessive roughhousing or eating large amounts of food, may increase the risk.
Symptoms
Symptoms of splenic torsion can vary depending on severity and duration. In the early stages, the dog may show non-specific signs such as malaise, loss of appetite, or lethargy. As the condition progresses, symptoms such as Vomiting, Abdominal pain, Pallor of the mucous membranes, and an accelerated heart rate often occur.
Since the spleen plays a role in the circulatory system, torsion can lead to circulatory problems, which can manifest as a weak pulse and collapse of the dog. Other signs can include an enlarged, palpable spleen and a bloated abdomen. In severe cases, shock can occur, which is life-threatening without immediate treatment.
Diagnose
The diagnosis of splenic torsion is made through a combination of clinical examination, imaging procedures, and, if necessary, laboratory tests. During the physical examination, the veterinarian may detect an enlarged spleen or signs of shock. X-rays and ultrasound examinations are helpful procedures for determining the position of the spleen and the extent of the torsion.
Additional diagnostic measures may include blood tests to assess the dog’s general health and identify signs of impaired organ function. In some cases, emergency exploratory surgery may be required to confirm the diagnosis and initiate treatment at the same time.
Therapie
Treatment of splenic torsion usually requires surgery to untwist the twisted spleen or, in more severe cases, to remove it. Before surgery, the dog is often stabilized by receiving intravenous fluids and, if necessary, medication to support circulation.
Surgical treatment may include a splenectomy, in which the spleen is completely removed, as a reperfused but damaged spleen can cause long-term problems. This surgery is performed under general anesthesia and usually requires a hospital stay of several days to monitor the dog and support recovery.
Prognose und Nachsorge
The prognosis for dogs with splenic torsion depends on several factors, including the severity of the torsion, the presence of complications, and how quickly treatment is initiated. With early diagnosis and treatment, the prognosis is generally good, and many dogs make a full recovery.
However, complications such as shock or tissue damage resulting from a prolonged interruption of blood supply can worsen the prognosis. Successful surgery and good postoperative care are crucial for the recovery phase and the dog’s long-term well-being.
Prävention
Prevention of splenic torsion is difficult because the exact causes are not fully understood. Nevertheless, some measures can reduce the risk. These include avoiding large amounts of food at once and maintaining a rest period after meals to prevent excessive physical activity.
In dogs considered genetically predisposed, prophylactic surgical fixation of the spleen may be considered to reduce the risk of splenic torsion. Regular veterinary check-ups and careful observation of the dog for early signs of discomfort can also help facilitate rapid diagnosis and treatment.
Further information on this topic can be found in the [literature](https://www.vetmeduni.ac.at/de/klinik-fuer-kleintiere/).
Ausblick auf aktuelle Forschung
Splenic torsion in dogs is a condition in which the spleen twists, which can lead to an impairment of the organ’s blood supply. This disease is particularly common in large dog breeds, such as Great Danes and Irish Wolfhounds. Research into splenic torsion has made progress in recent years, particularly regarding early detection and the risk factors that can contribute to this condition.
An important area of research focuses on genetic factors that could increase the risk of splenic torsion. Scientists are investigating whether specific genetic markers can be identified in dogs that are more susceptible to this condition. In the future, this could help develop breeding programs that reduce the risk of splenic torsions.
Another area of research concerns prevention strategies. Researchers are investigating whether certain dietary habits or physical activities could influence the risk of splenic torsion. For example, it is being investigated whether feeding several small meals throughout the day instead of one large meal could play a role in prevention.
Furthermore, there are advances in diagnostic imaging that make it easier for veterinarians to detect splenic torsion early. Modern ultrasound machines and CT scans can help identify subtle changes in the spleen before serious symptoms occur. These technological advances are particularly important because a rapid diagnosis is crucial for successful treatment.
Research into the treatment of splenic torsion also focuses on the surgical techniques used for this purpose. New minimally invasive surgical techniques are being developed to shorten recovery time and reduce the risk of complications. Laparoscopy techniques, which use small incisions to untwist the spleen, are promising and could become standard treatment in the future.
Overall, current research shows that a multidisciplinary approach encompassing genetics, prevention, diagnosis, and treatment has the potential to significantly improve the prognosis for dogs with splenic torsion. While much work is still needed to fully understand the causes and the most effective interventional strategies, the progress of recent years gives reason for hope.
Another promising area of research is the investigation of the role of the immune system in splenic torsion. Scientists are trying to understand how immune responses might influence the development or exacerbation of the disease. These findings could open up new therapeutic approaches to reduce the risk of complications.
The research into biomarkers that can be detected in blood or urine to diagnose splenic torsion early is also an exciting field of research. Such biomarkers could one day enable regular blood tests that help veterinarians identify the risk of splenic torsion in certain dogs at an early stage.
Interdisciplinary collaboration between veterinarians, geneticists, and nutritionists is considered crucial to gaining a more comprehensive understanding of splenic torsion. This collaboration could yield new insights and accelerate the development of innovative solutions.
In summary, research into splenic torsion in dogs has entered an exciting phase. With advancing technology and a better understanding of genetic and immunological mechanisms, significant progress could be achieved soon, improving the lives of many dogs.
Frequently Asked Questions (FAQs)
1. What is splenic torsion in dogs?
2. What symptoms occur with splenic torsion?
3. What are the causes of splenic torsion?
4. How is splenic torsion diagnosed?
5. What treatment options are available?
6. Can splenic torsion be prevented?
7. Which dogs are most at risk?
8. What is the prognosis after splenic torsion?
9. Are there long-term consequences after treatment?
10. How much does the treatment of splenic torsion cost?
Literatur
- DeGroot, W., Giuffrida, M. A., Rubin, J., Runge, J. J., Zide, A., Mayhew, P. D., Culp, W. T. N., Mankin, K. T., Amsellem, P. M., Petrukovich, B., Ringwood, P. B., Case, J. B., & Singh, A. (2016). Primary splenic torsion in dogs: 102 cases (1992–2014). Journal of the American Veterinary Medical Association, 248(6), 661–668. https://doi.org/10.2460/javma.248.6.661
- Hughes, J. R., Johnson, V. S., & Genain, M. A. (2020). CT characteristics of primary splenic torsion in eight dogs. Veterinary Radiology & Ultrasound, 61(3), 261–268. https://doi.org/10.1111/vru.12844
- Saunders, H. M., Neath, P. J., & Brockman, D. J. (1998). B-mode and Doppler ultrasound imaging of the spleen with canine splenic torsion: A retrospective evaluation. Veterinary Radiology & Ultrasound, 39(4), 349–353. https://doi.org/10.1111/j.1740-8261.1998.tb01619.x
- Neath, P. J., Brockman, D. J., & Saunders, H. M. (1997). Retrospective analysis of 19 cases of isolated torsion of the splenic pedicle in dogs. Journal of Small Animal Practice, 38(9), 387–392. https://doi.org/10.1111/j.1748-5827.1997.tb03491.x
- Reinhart, J. M., Sherwood, J. M., KuKanich, K. S., & Biller, D. S. (2015). Chronic splenic torsion in two dogs. Journal of the American Animal Hospital Association, 51(3), 185–190. https://doi.org/10.5326/JAAHA-MS-6119
- Weber, N. A. (2000). Chronic primary splenic torsion with peritoneal adhesions in a dog: Case report and literature review. Journal of the American Animal Hospital Association, 36(5), 390–394. https://doi.org/10.5326/15473317-36-5-390