(n.) The operation of opening the fetal head, in order to effect delivery.
Example Sentences:
(1) Hematoma clot weighing 10 grams was removed through emergency craniotomy, followed by external decompression.
(2) To evaluate whether local anesthetic scalp infiltration blunts hemodynamic responses to craniotomy in anesthetized children (age, 2-18 yr), two concentrations of bupivacaine (0.125% and 0.25%) with vasoconstrictor (epinephrine 1:400,000) were compared with control data when a solution of vasoconstrictor alone was injected.
(3) On the other hand, the site and size of bony window made in craniotomy for supratentorial lesion has relationship with perfectibility of operation.
(4) Six patients with juvenile pilocytic astrocytomas of the thalamus or basal ganglia underwent seven computer-assisted stereotactic laser craniotomies with complete or nearly complete removal of the tumor in all cases.
(5) A right frontal craniotomy was performed on November 2, 1989, but neck clipping of the aneurysm was impossible, because it was a pseudoaneurysm with quite a fragile neck.
(6) Stereotactic techniques can also be used to aspirate abscesses or localize abscesses or neoplastic lesions excised by craniotomy.
(7) Craniotomy disclosed an abscess containing yellow pus from which Streptococcus viridans was cultured.
(8) An inoperable pituitary adenoma was a massive surrounding fibroblastic reaction was found at craniotomy.
(9) It is currently deployed via a bifrontal craniotomy and is placed primarily as a support beneath the frontal lobes.
(10) The anatomical findings at craniotomy are described.
(11) The exposure and operative management comprised a latero-facial approach combined with multiple exposure osteotomies of the ascending mandibular ramus, orbitozygomatic region and a frontosphenotemporal craniotomy.
(12) Two others had proven brain damage, one a massive cerebral infarct and one a traumatic cerebral hematoma requiring craniotomy.
(13) 24 patients scheduled for elective craniotomy were investigated.
(14) Photograph: Graeme Robertson for the Guardian At the cutting edge, literally, of NHS treatment, we saw “awake craniotomy” at St George’s hospital, Tooting, south London.
(15) A craniotomy followed by a bilateral external ethmoidectomy was necessary for complete extirpation of the infected mucoceles.
(16) Decompression resulting from craniotomy and biopsy, led to a partial reversal of this cerebral hypofunction.
(17) The effects of craniotomy on cerebral haemodynamics remains controversial from a study of the literature.
(18) Following V-P shunt operation for hydrocephalus, right temporo-parietal craniotomy was performed.
(19) This retrospective study found that: DTICH usually occurs the first week after trauma, but could happen several weeks later; patients with skull fractures are at higher risk (p less than 0.01); osmotherapy as well as barbiturate therapy seem to have no influence on this complication; craniotomy (or craniectomy) appears to be a significant factor in the cause of DTICH (p less than 0.05).
(20) Capillary mean transit time was determined by detection of the passage of a hemodilution bolus through a region of the parietal cerebral cortical surface, using a reflectance spectrophotometer through a small craniotomy in chloral hydrate-anesthetized rats.
Trepanation
Definition:
Example Sentences:
(1) The automatic half of both the motor which advances the trepan as well as the second motor which rotates the trepan is triggered by the sudden change in electrical resistance between the trepan and the patient's internal body fluid, at the final stage of penetration.
(2) Labyrinthine trepanation was performed in the majority of 16 patients with minor agenesis of middle ear involving either stapedovestibular ankylosis or absence of fenestra vestibuli.
(3) The introduction of a new motorized trepan in ophthalmic surgery by Arthur v. Hippel in 1891 was a very important achievement.
(4) Already Hippocrates recommended decompression-trepanation for the treatment of hydrocephalus.
(5) Borings with rose trepans without cooling fluid cause sometimes considerable heat lesions up to a depth of 30 mu.
(6) The method of choice for the treatment was the osteoplastic trepanation with a removal of the haematoma.
(7) A second similar observation was made in a 15 year old male, trepanated because of an epidural abscess.
(8) Surgical techniques were those of Mackensen (1972), the trap-door technique, and a trepanation of the sclerocornea with regrafting.
(9) Resection trepanation of the skull was carried out in 55 patients, osteoplastic in 23.
(10) It can be demonstrated that because of the stress on the femur and its mechanical characteristics (material distribution, density distribution, breaking strength, "structure" strength and the histological structure), a lateral trepanation of the femoral corticalis is weakening the bone in its mechanically most stressed part whereas an anterior fenestration is mechanically much better.
(11) Before trepanation they received infiltration anaesthesia of the scalp at the site of the proposed operation.
(12) The surgical removing of the apical part of the implant with the use of a Trepan bur made it possible to examine and visualize histologically and microradiographically the tissue adjacent to the implant.
(13) Due to these observations, Perier had suggested to treat deafness by trepanation.
(14) Investigations of the French physician Perier on patients after a trepanation of their skulls have shown that talking can be understood in the case of hermetically closed ears by means of the trepanation scar.
(15) Since skin problems as decubitus and infections are well known risks in osteoplastic trepanations in congenital malformations in children, we searched for a reduction in size of the implants and the possibility to use biodegradable materials.
(16) This case shows that the value of angiography for the diagnosis of brain death may sometimes be limited, at least in those cases in which osteoclastic trepanation has been performed or there are other causes for a skull defect, because they can prevent the rise of intracranial pressure which brings about the cerebral circulatory arrest.
(17) After osteoclastic trepanation 45 patients were investigated with ultrasonic tomography.
(18) This is effected by the ability to change the penetration angle of the electrode or by choosing a different point of trepanation.
(19) During trepanation a macroscopically typical finding of Sturge-Weber-syndrome could be demonstrated (angioma capillare et venosum) covering almost the entire right posterior hemisphere.
(20) Since the bone meal is usually obtained during trepanation, bone biopsies of other body regions are unnecessary.