Disease sexually transmitted:

Early congenital syphilis


  • What is Petroset
  • What triggers / Causes of Petrosia
  • Pathogenesis (what is happening) during Petrosia
  • The Symptoms Of Petrosia
  • Diagnosis Of Petrosia
  • Treatment Of Petrosia
  • Prevention Of Petrosia
  • Which doctors should be consulted if You have Petroset

What is Petroset -

Petroset (petrositis - Anat. pars petrosa ossis temporalis of the temporal bone pyramid-um), or osteomyelitis of the apex of the pyramid of the temporal bone, usually occurs during or after (after 3-4 days) acute otitis media or mastoiditis, much less in chronic otitis media - inflammation of the pyramid of the temporal bone is a complication of suppurative otitis media.

What triggers / Causes of Petrosia:

Petroset due to the spread of infection on the body and the top of the petrous bone.

Pathogenesis (what is happening) during Petrosia:

Petrosa may complicate the course of both acute and chronic otitis media, and occur both as an acute or chronic osteitis or infestation by cholesteatoma. In addition, it may complicate operations on the mastoid process (which affect aeration or drainage cells of the petrous bone), both in the early and in the late period. The infection reaches the cells of the petrous bone in several ways.

The Symptoms Of Petrosia:

The main symptom of petrosia is headache, usually spastic and feel far ahead of the ear. Possible abductor paralysis (VI) cranial nerve on the affected side due to the swelling of the canal in which the nerve passes below the ligament between the petrous part of the temporal bone and tilted processes of the sphenoid bone in the area of the apex of the petrous bone.
Gradenigo (Gradenigo) described a triad of symptoms when Petrosian: otitis media, trigeminal neuralgia, and paralysis of the abductor nerve. The most common symptom is severe pain that is radiating to the temporal region, lower jaw, and in the depth of the orbit. They are caused by collateral edema of the branches of the trigeminal nerve and gasteropoda site. Paralysis of the abductor nerve usually indicates that there is limited meningitis coming from the top of the pyramid.
Symptoms are expressed with different strength depending on complete or incomplete separation of purulent focus. When the pressure portion of pus comes out (in middle ear), and then comes the relief. The period of relative prosperity was also observed during the famous barterizatsii process (purulent lesion surrounded by a granulation tissue - latent Petrosa). However, there is often a new outbreak of a process in which the pus breaks through the barrier and can lead to intracranial complications.
For the "late" petroset observed in the postoperative period after mastoidotomy, this characteristic picture of the disease: the patient's condition has not improved, as it usually happens after mastoidotomy, but even worse - there is a headache, rise in temperature up to high numbers, pain deep in the orbit, the ripple of pus in the ear canal, in the depths of antral wounds. After removal of pus, the wound again quickly filled with pus pus.

Diagnosis Of Petrosia:

Diagnosis the typical symptoms of the disease difficult, especially in cases where joined by the abductor paralysis and trigeminal nerve pain. Large difficulties is the diagnosis of latent petrositis - when they temporarily barazzoni focus can suddenly cause intracranial complications. So even if you erased the symptoms of petrosia it is necessary to monitor the dynamics of the process (to re-investigate the blood on leukocytosis and ESR, the fundus of the eye and the spinal fluid).
One of the important diagnostic techniques is x-ray. Sometimes radiographic picture is so vivid that provides the correct diagnosis (the destruction of the apex of the pyramid). Most good overview of this area is obtained photographs of Stenvers. Difficulties in the evaluation of radiographs arise:
1) at different levels of the structure of cellular systems of both pyramids is often one of the tops has a less clear pattern of cells than the other - such changes can easily be interpreted as pathological-
2) at very small sizes source of destruction, when it is covered by the shadow of compact bone formation.
Very valuable is the method of repeated shots. If you modify the original picture, you can be confident in the presence of a progressive process.Петрозит

Treatment Of Petrosia:

ru/" target="_blank">Treatment of petrositis, like the treatment of otitis media and mastoiditis, consists in the use of large doses of penicillin, streptomycin, biomitsin and other antibiotics (sometimes in combination with each other) and sulfonamides.
Currently unconditional surgery require perosity, complicated by septic or intracranial processes. When "early" metrosite incurred in the initial period of acute otitis media, even in patients with severe symptom of Gradenigo surgery you can not rush. When "late" metrosite and severe symptoms of the disease requires careful monitoring with the use of all diagnostic techniques, primarily x-rays, cerebrospinal fluid, neurological status, the state of the function of the labyrinth, etc. At the "Playground" of symptoms, and especially with an increase in their shows the operation on the mastoid process of the autopsy, if possible, all peelability cells, with a thorough search of the cell moves to the top of the pyramid (top and rear), expanding and probing their holes.
Most surgical activity require perosity that arise in the postoperative period after mastoidotomy. In these cases, revision of the wound that removes abandoned pockets, main attention is drawn to the detection peelability cellular pathways.
If these unloading operations do not lead to the goal and formed a closed purulent lesion in the apex of the pyramid, shows the interference at the top.
There are four types of operations in petrosia:
1. Operation via mastoidal wound (Frenckner). Sometimes (when the corresponding cell during a) small spoon or pass through the circumference of the upper semicircular canal towards the apex of the pyramid and connect this deep hearth with mastoianni wound. Another approach consists in the exposure of the top surface of the pyramid through an additional Burr holes in the scales of the temporal bone.
2. Operation via the tympanic cavity. This operation produces an extended radical operation with maximum beating the spurs, so they can see promontorium and the mouth of the Eustachian tube. Bypassing the labyrinth array from below and in front, reach the top of the pyramid. The approach can be further expanded if Stripping wall of the internal carotid artery and push it to the side (on Ramadge).
3. Operation through the maze. It is only valid while purulent labyrinthitis, the threat of injury to the facial nerve and therefore less convenient.
4. Combined method. Wide access to the pyramid is achieved through the front-bottom approach (type Ramadge) simultaneously with the broad exposure of the surface of the pyramid to the top.
The prognosis for timely treatment in the absence of complications, as a rule, favorable.

Prevention Of Petrosia:

Prevention of petrosia includes timely and adequate treatment of acute and chronic otitis media.

Which doctors should be consulted if You have Petroset:


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