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Biomedical subjects

C Pharaboz

Publications and source records attributed to C Pharaboz.

53 records · Page 3Linked to original sources
PubMed1987

[Combination of traumatic vascular and neural lesions of the limbs. Surgical approach. Apropos of 10 cases].

Ten cases of limb injuries including vascular and nervous lesions are reported. After pointing out the modalities of diagnosis, the authors describe the surgical technic: vascular management first, and then nervous repair. After a six months to three years follow-up, among eight cases, the vascular repair is successful every time, and the nervous repair five times. Although each technic is usually easy, the association of both lesions needs the collaboration of multidisciplinary surgical teams.

Adult↗
PubMed1986

[Nasopharyngeal fibroma. Excision under hemodilution and delayed autotransfusion].

The surgical treatment of juvenile naso-pharyngeal angiofibroma involved a potential haemorrhagic risk: the average intra-operative blood loss was estimated at between 1,300 and 2,800 ml in many reports. Two cases are reported in which haemodilution and autologous blood transfusion were used. The method consisted in pre-operative repeated phlebotomies ("leap-frog") and normovolaemic acute haemodilution; thus, 1,700 ml of autologous blood was collected in the first case, and 2,300 ml in the second one. Autotransfusion was carried out and no homologous blood transfusion was used in the peri-operative period. The use of this method, although compelling, had many advantages (financial saving, suppression of adverse reactions with homologous transfusion, transfusion of fresh blood, reduction of postoperative oedema).

Adult↗
PubMed1986

[Blue tympanic membrane. Apropos of 3 cases].

A CT scan allowed simple diagnosis of the affection in three patients with the blue tympanic membrane syndrome. Lesions included prolapse of the internal jugular vein sinus into the tympanic cavity, an aberrant trajectory of the internal carotid artery in the middle ear and a tympano-jugular glomus tumor. Angiographic investigation of the latter lesion was performed more as a pre-treatment procedure rather than for diagnostic purposes, since it served as a guide to surgery, consisting usually of embolization.

Adult↗
PubMed1986

[Delayed, triangular, hyperdense, computed x-ray tomography images of the renal parenchyma following iodide injection. Interpretation of transient renal ischemia?].

Three cases of renal ischemia diagnosed by Computed Tomography (CT) are presented. The pathophysiology of renal ischemia which accounts for the CT findings observer in these cases are reviewed. In the appropriate climate setting a diagnosis of renal ischemia may be made by CT, when a zone or zones of low attenuation after injection and enhancement of these same zones 6 to 72 hours later are observed in the kidney.

Adult↗
PubMed1985

[Diagnosis of renal, peri- and para-renal infections. Contribution of ultrasonics and x-ray computed tomography. Apropos of 10 cases].

Principal signs and symptoms of renal parenchyma infections are discussed in relation to findings in 10 cases. Disorders studied were acute pyelonephritis and focal and bacterial acute nephritis, renal abscess and perinephritic phlegmon. Intravenous urography was only moderately sensitive (4/7) and of little specificity. Ultrasound imaging showed much greater sensitivity (8/10), undetected lesions being the earliest cases of severe acute pyelonephritis. The scanner was the most sensitive investigatory method since it associated anatomical and functional aspects in data obtained, justifying its initial use for certain authors.

Abscess↗
PubMed1985

[X-ray computed tomographic detection of foraminal neurinoma. Apropos of a case].

About the case of the vertebral neurilemmoma diagnosed at the very beginning, purely inside the foramen, precursor of the classical "hourglass Tumor", the authors remain the clinical evolution and the anatomy of the intervertebral foramen's neurilemmoma. They insist on the insufficiency of the conventional radiology in early diagnosis. They also exposed the C.T. technic and his results; the neurilemmoma can be diagnosed before his extension over the limits of the intervertebral foramen, but only if a precis neurological level is known.

Female↗
PubMedDate not supplied

[Primary brain lymphoma in AIDS. 17 cases studied by MRI before stereotaxic biopsies].

AIM: Determining which semiological criteria might help to suggest lymphoma when an intracerebral mass in observed in a patient with AIDS. The use of these criteria might shorten the duration of the anti-toxoplasmic test treatment and to perform puncture earlier. The fast growth of the lymphomas may account for the rapid death of these patients if untreated, but as a corollary, its increase in size can be objectively measured over a short period, about ten days. MEANS: Retrospective study of 17 lymphomas diagnosed with stereotaxic puncture. RESULTS: The most discriminating criteria are ventricular encasement or an original site in the white matter, as well as the moderate character of the edema and of the mass effect relative to the volume of the tumor. Other arguments also help: simple lesion, large size, sinuous contour, no signs of hemorrhage. CONCLUSION: The diagnosis of lymphoma can often be proposed at once. A control must then be performed very soon, with stereotaxic puncture if the volume of the lesion has increased in the meantime.

Adult↗
PubMedDate not supplied

[MRI, geometric distortion of the image and stereotaxy].

The MRI technology may be the starting-point of geometric distorsion. The mathematical preciseness of a spatial location may be disturbed and alter the guidance of an MRI interventionnal act, especially in stereotactic brain biopsy. A review of the literature shows errors of 1 to 1.5 mm. Our results show an error of 0.16 +/- 0.66 mm. The control of quality: homogeneity and calibration of magnetic-field gradients, permit an improve of the balistic preciseness and give permission to realize the guidance of a stereotactic brain biopsy with the alone MRI.

Brain Mapping↗
PubMedDate not supplied

[Hemorrhagic pseudocyst of pancreas. A case of X-ray computed tomography diagnosis].

Arteriography failed to detect a pancreatic pseudocyst complicated by hemorrhage, a positive diagnosis being established only after CT scanning. Identification of this rare lesion by angioscan imaging illustrates. The value of this technique, which provides data on vascular dynamics, rapidly, in the selected plane of the section. Results in this case demonstrate the very close correlation between Ct scan images and pathological findings.

Hemorrhage↗