Search PubMed⌕ Search

Biomedical subjects

D Doyon

Publications and source records attributed to D Doyon.

At least 91 records · Page 5Linked to original sources
PubMed1986

[Are orodental infectious foci responsible for bacterial pneumopathies? A statistical study].

A statistical study compared a group of 38 patients with clinically and bacteriologically confirmed bacterial pneumonia with a control group of 33 subjects. Results facted to demonstrate any significant role for buccodental infection in the genesis of bronchopulmonary infections capable of inciting stomatologists to adopt drastic measures with respect to mortified teeth within the framework of pulmonary disease.

Acute Disease↗
PubMed1985

[Osteoarticular lesions in Whipple's disease. Apropos of a destructive form and review of the literature].

A patient with Whipple's disease was considered as cured after treatment for two years, but relapse occurred as the neurological form. Radiographic imaging showed destructive osteoarticular lesions, with few or no symptoms, affecting the peripheral skeleton but also the sacroiliac joints. The published literature is reviewed and the different osteoarticular radiologic forms of the affection described.

Bone Diseases↗
PubMed1984

[Therapeutic or palliative embolization aimed at analgesia for bone metastases of renal origin].

In addition to the chemotherapy, surgery and physical treatments usually employed in the treatment of bony secondaries from renal tumours, the authors propose embolization. They have performed this procedure in 4 patients, using a mixture of isobutyl-2-cyanoacrylate and lipiodol. Arteriography is performed before and after the embolization which is carried out under local anaesthesia. Disappearance or relief of pain was obtained in each case. This technique in no way changes the prognosis of the disease, but it can improve the quality of life of these patients. A review of the literature reveals that metastases other than renal have already been embolized, as have primary malignant bone tumours. The authors describe their method, the incidents associated with treatment, the contra-indications and the supposed mechanism of the analgesic action of embolization.

Aged↗
PubMed1984

[Radiologic study of the nasal fossa. Value of a vasoconstrictor test].

The advantages of a vasoconstrictor test during standard radiologic imaging of the nasal fossae are discussed. After a brief anatomic and physiologic review, results are presented of the use of a prednazoline test in 23 patients with radiologically evident nasal obstruction. Results emphasize the diagnostic value of the use of the vasoconstrictor, which enables precise study of morphology of the nasal fossae and, in certain cases, their functional exploration.

Adult↗
PubMed1983

[Myelographic diagnosis of radiculomeningeal metastases of carcinomas. Apropos of 10 cases].

The authors report ten cases of intra-arachnoid metastases affecting the spinal cord and its roots. These cases illustrate all the myelographic appearances seen: multiple nodular appearances, striated appearance related to thickening of the roots, failure to visualise one or more root sheaths, filling defect of varying regularity preferentially seen in the dural cul-de-sac, but also in the terminal part of the cord associated with varying degrees of block. Myelographic technique is essential of they are to be visualised: water soluble opaque agents and tomography, if possible by complex scanning alone ensure accurate analysis of the roots. This type of involvement raises a pathogenic problem regarding the exact mechanism of such metastases. The prognosis is very poor despite treatment based upon radiotherapy and chemotherapy.

Arachnoid↗
PubMed1982

[Ultrasonography of the gallbladder and oral cholecystography. A prospective comparative study].

A prospective study comparing the information supplied by ultrasonography of the gallbladder and oral cholecystography was conducted in 254 patients with clinically suspected gallbladder calculi. The results demonstrated the limitations of cholecystography, notably the frequency of non-opacification in the absence of hepatic-biliary tract pathology and the possibility of false-negative results. Ultrasonography proved adequate in more than 80% of the cases and may be considered as the examination of choice for the diagnosis of biliary calculi. Its own limitations are discussed.

Adolescent↗
PubMed1982

[Invasive vascular deformities of the face and scalp. Diagnostic and therapeutic evaluation by angiography: review of 32 cases 1977-1980].

Angiography was employed in 32 patients with cutaneous or subcutaneous angiomas of the face and scalp in order to establish diagnosis and assess results of therapy. Pre-treatment angiographic appearances as a function of their location are discussed, and the results of embolisation reported. Total surgical excision was possible whenever initial therapy had included embolisation, no complications being noted after embolisation, and no lesions becoming worse.

Adolescent↗
PubMed1982

[Angiography in malformations of the oral cavity].

Angiographic exploration of oral vascular malformations should be conducted according to a precise anatomical protocole, vascular malformation being able to be classified according to their degree of vascularity. Embolisation is an essential complementary procedure to diagnostic angiographic investigations, either as a definitive therapeutic act in certain localisations or as a pre-operative step.

Angiography↗
PubMed1982

[Protocol for the radiological examination of facial injuries].

Radiological examination of maxillofacial injuries, though difficult in patients with multiple lesions, should be rigorously conducted and be as complete as possible, depending on the results of clinical investigation. Initially, it must include at least the basic cranial projections: profile, high anteroposterior, Worms, low anteroposterior, and finally Blondeau. Secondarily, or immediately in less severe or isolated maxillofacial injuries: multiple anteroposterior projections by discontinuous scanning for better analysis of fracture lines or disjunctions, computed tomography in three planes, a panoramic radiograph, and particular projections depending on clinical findings and results of initial radiological examination. The CI scan, rapidly becoming more perfected, is essential in skull injuries with brain damage.

Facial Injuries↗