hypocapnia/kansè

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Angiographic features of the haemodynamic changes occurring in brain tumours under the influence of hypocapnia and Althesin.

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Intracranial pressure and cerebral hemodynamic in patients with cerebral tumors: a randomized prospective study of patients subjected to craniotomy in propofol-fentanyl, isoflurane-fentanyl, or sevoflurane-fentanyl anesthesia.

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BACKGROUND A critical point during craniotomy is opening of dura, where a high intracranial pressure (ICP) results in swelling of cerebral tissue. Controlled studies concerning ICP, degree of dural tension, and degree of cerebral swelling are therefore warranted. METHODS In an open-label study, 117

Generation and characterization of mice carrying a conditional allele of the Wwox tumor suppressor gene.

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WWOX, the gene that spans the second most common human chromosomal fragile site, FRA16D, is inactivated in multiple human cancers and behaves as a suppressor of tumor growth. Since we are interested in understanding WWOX function in both normal and cancer tissues we generated mice harboring a

Functional response of tumor vasculature to PaCO2: determination of total and microvascular blood volume by MRI.

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In order to identify differences in functional activity, we compared the reactivity of glioma vasculature and the native cerebral vasculature to both dilate and constrict in response to altered P(a)CO(2). Gliomas were generated by unilateral implantation of U87MGdEGFR human glioma tumor cells into

Reducing the within-patient variability of breathing for radiotherapy delivery in conscious, unsedated cancer patients using a mechanical ventilator.

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OBJECTIVE Variability in the breathing pattern of patients with cancer during radiotherapy requires mitigation, including enlargement of the planned treatment field, treatment gating and breathing guidance interventions. Here, we provide the first demonstration of how easy it is to mechanically

Treatment with everolimus for a patient with systemic metastatic breast cancer results in severe pulmonary injury: a case report.

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Everolimus has been used in patients with hormone receptor-positive breast cancer. This study reports that treatment with everolimus alone induced severe pulmonary injury in a patient with systemic metastatic breast cancer. A 58-yearold woman with systemic metastatic breast cancer was treated with

Cerebral blood volume and blood flow responses to hyperventilation in brain tumors during isoflurane or propofol anesthesia.

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Using computerized tomography, we measured absolute cerebral blood flow (CBF) and cerebral blood volume (CBV) in tumor, peri-tumor, and contralateral normal regions, at normocapnia and hypocapnia, in 16 rabbits with brain tumors (VX2 carcinoma), under isoflurane or propofol anesthesia. In both

Effects of normo- and hypocapnic nitrous-oxide-inhalation on cerebral blood flow velocity in patients with brain tumors.

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Nitrous oxide (N2O) use during anesthesia for intracranial procedures has been a subject of controversy in the past. To date, the isolated influence of N2O on mean cerebral blood flow velocity in the middle cerebral artery (VMCA) has not been investigated during hypocapnia in patients with brain

Per- and postoperative changes in the arterio-venous oxygen content difference (AVDO2) in patients subjected to craniotomy for cerebral tumours.

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Sixteen patients with supratentorial cerebral tumours were subjected to craniotomy under thiopentone, fentanyl, nitrous oxide, halothane anaesthesia during moderate hypocapnia (PaCO2 level 4.0 kPa). The arterio-venous oxygen content difference (AVDO2) was measured peroperatively, and repeatedly

Serial magnification angiography under hypocapnia and hypertension.

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Serial magnification angiography under hypocapnia and hypertension was performed in 200 cases of cerebral tumours and cerebrovascular lesions. The advantages over conventional angiography are evident; the extent of a tumour is easier to determine as well as in most cases the nature of the mass

The effect of isoflurane on cerebral blood flow and metabolism in humans during craniotomy for small supratentorial cerebral tumors.

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Fourteen patients were studied during craniotomy for small supratentorial cerebral tumors. Cerebral blood flow (CBF) and cerebral metabolic rate of oxygen (CMRO2) were measured twice by a modification of the Kety-Schmidt technique using 133Xe intravenously. Anesthesia was induced with thiopental 5-7

CBF and CMRO2 during craniotomy for small supratentorial cerebral tumours in enflurane anaesthesia. A dose-response study.

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In 14 patients with supratentorial cerebral tumours with midline shift less than or equal to 10 mm, cerebral blood flow (CBF) and cerebral metabolic rate of oxygen (CMRO2) were measured twice on the contralateral side of the craniotomy, using a modification of the Kety & Schmidt method. For

Safely prolonging single breath-holds to >5 min in patients with cancer; feasibility and applications for radiotherapy.

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OBJECTIVE Multiple, short and deep inspiratory breath-holds with air of approximately 20 s are now used in radiotherapy to reduce the influence of ventilatory motion and damage to healthy tissue. There may be further clinical advantages in delivering each treatment session in only one single,

A CT method to measure hemodynamics in brain tumors: validation and application of cerebral blood flow maps.

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OBJECTIVE CT is an imaging technique that is routinely used for evaluating brain tumors. Nonetheless, imaging often cannot show the distinction between radiation necrosis and neoplastic growth among patients with recurrent symptoms after radiation therapy. In such cases, a diagnostic tool that

A multi-scale model for determining the effects of pathophysiology and metabolic disorders on tumor growth.

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The search for efficient chemotherapy drugs and other anti-cancer treatments would benefit from a deeper understanding of the tumor microenvironment (TME) and its role in tumor progression. Because in vivo experimental methods are unable to isolate or control individual factors of the TME and in

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