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Cavernous sinus thrombosis is a blood clot in the cavernous sinus. The cavernous sinus is a cavity at the base of the brain that contains a vein, several nerves, and other structures. The vein carries deoxygenated blood from the brain and face back to the heart.
The vein and cavity run between the large bone at the base of the skull (sphenoid bone) and temporal bone (near the temple).
Causes, incidence, and risk factorsThe cause of cavernous sinus thrombosis is usually a bacterial infection that has spread from the sinuses, teeth, ears, eyes, nose, or skin of the face. Persons with conditions that cause an increased risk of blood clots may also develop cavernous sinus thrombosis.
Symptoms- Bulging eyeballs
- Cannot move the eye in a particular direction
- Drooping eyelids
- Headaches
- Vision loss
Tests that may be ordered include:
- CT scan of the head
- Magnetic resonance imaging (MRI) of the brain
- Sinus x-ray
Cavernous sinus thrombosis is treated with high-dose intravenous (through a vein) antibiotics. Sometimes surgery is needed to drain the infection.
Expectations (prognosis)Cavernous sinus thrombosis can be fatal. However, the Death Rate of this condition has improved tremendously since the introduction of antibiotics.
Calling your health care providerCall your doctor right away if you have:
- Bulging of your eyes
- Drooping eyelids
- Eye pain
- Inability to move your eye in any particular direction
- Vision loss
Nath A. Brain abscess and parameningeal infection. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 438.
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Cavernous sinus thrombosis Cavernous sinus thrombosis
What is ocular palsy?
Paralysis of 2/3 of face due to cavernous sinus thrombosis
What is deep sinus thrombosis?
Thrombosis: Blood clot Sinus: A sack/avity in an organ or tissue deep sinus thrombosis: a deep bloodclot in a sinus...
Where is the cavernous sinus found?
head
Can tooth infection affect the optic nerve?
Yes, a tooth infection can potentially affect the optic nerve, although it is rare. The infection can spread to nearby structures, including the sinuses, which are in close proximity to the optic nerve. In severe cases, this can lead to complications such as orbital cellulitis or cavernous sinus thrombosis, which may impact vision and nerve function. Prompt dental treatment is essential to prevent such serious complications.
What veins drain blood from the brain?
The Internal Jugular drains the brain via the collection of blood from the superior sagittal sinus, inferior sagittal sinus, straight sinus, right transverse sinus, sigmoid sinus, and cavernous sinus (to name a few).....The other jugular....The External Jugular drains the occipital, facial (also drained by internal jugular), maxillary, and temporal veins.
What has the author Chandranath Sen written?
Chandranath Sen has written: 'Microsurgical Anatomy of the Skull Base' -- subject(s): Anatomy & histology, Atlases, Cavernous Sinus, Microsurgery, Skull, Skull base, Surgery
Can you go blind from a dental infection?
While it's rare, a dental infection can potentially lead to complications that may affect vision. If an infection spreads, it can cause conditions like cavernous sinus thrombosis, which affects blood flow to the eyes and brain and may result in vision loss. Prompt treatment of dental infections is crucial to prevent such serious complications. If you experience any unusual symptoms, it's important to seek medical attention immediately.
Dangerous triangle of the face?
The dangerous triangle of the face consists of the area from the corners of the mouth to the bridge of the nose, including the nose and maxilla. Due to the special nature of the blood supply to the human nose and surrounding area, it is possible (although very rare) for retrograde infections from the nasal area to spread to the brain.This is possible because of venous communication (via the ophthalmic veins) between the facial vein and the cavernous sinus. The cavernous sinus lies within the cranial cavity, between layers of the meninges and is a major conduit of venous drainage from the brain.It is a common misconception that the veins of the head do not contain one way valves like other veins of the circulatory system. In fact, it is not the absence of venous valves but the existence of communications between the facial vein and cavernous sinus and the direction of blood flow that is important in the spread of infection from the face
What causes painful ophthalmoplegia?
A tumor or aneurysm in the cavernous sinus, located behind the eyes, can cause painful ophthalmoplegia. Painful ophthalmoplegia can also be caused by an inflammatory process in the same area, called Tolosa-Hunt syndrome
Is sinus venous thrombosis completely curable?
Sinus venous thrombosis (SVT) can often be effectively treated, leading to significant recovery for many patients. Treatment typically involves anticoagulation therapy, and in some cases, additional interventions may be necessary. While many individuals experience a full recovery, outcomes can vary based on the severity of the condition and underlying causes. Therefore, while SVT can be managed and improved, the term "completely curable" may not apply to all cases.
What is the name of the paranasal sinuses?
paranasal sinus include frontal sinus, the maxillary sinus, the ethmodial sinuses, and the spheniodal sinus.
