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Biomedical subjects

C Neri

Publications and source records attributed to C Neri.

At least 37 records · Page 2Linked to original sources
PubMed1989

[The behavior of leukocyte rheology in induced ischemia in peripheral arterial occlusive disease].

We studied the quantitative and qualitative behaviour of white blood cells (WBCs) at rest and after standard treadmill exercise in 20 male stage II peripheral vascular disease (PVD) patients, compared to 20 healthy matched controls. The aim of this study was to define the role of WBCs in PVD. The results confirm the WBC count was significantly increased in PVD patients. Surprisingly, however, the only rheological WBC variable which showed a significant variation during the ischaemic pain caused by treadmill exercise was the filterability of mononuclear leukocytes. This would seem to identify disturbances in mononuclear filter-ability, associated with ischaemic pain resulting from claudication, as a functional sign of PVD.

Aged↗
PubMed1989

[Infection and tissue ischemia: what role does the rheologic behavior of blood cells play?].

It is not clear how acute infection is associated with a subsequent ischaemic brain infarction. Infection may, in fact, cause changes in blood fluidity. Abnormalities in blood flow, particularly in white blood cell rheology, are known to be precipitating factors for ischaemic events. Therefore the rheological behaviour of the erythrocytes and the leukocytes were studied 30 days after the onset of acute bacterial infections in 30 patients and in a group of 50 controls (matched for sex, body mass index and cardiovascular risk factors). Our results show a significant impairment in the flow properties of the leukocytes in the patients compared to the controls, and indicate disturbances in leukocyte rheology might be considered an additional risk factor for ischaemic brain infarction when it occurs shortly after febrile infection.

Aged↗
PubMed1989

[Arthrographic semeiotics of traumatic capsular and ligamentous pathology of the tibiotarsal articulation].

One-hundred and fifty-five patients with recent trauma were submitted to arthrography of the ankle joint in order to evaluate the actual diagnostic value of the methodology. Arthrography clearly demonstrated the single ligaments (anterior talo-fibular, calcaneal-fibular, posterior talo-fibular, and deltoid) and the capsular damage or rupture. The technical factors affecting the quality of the examinations are discussed. Arthrographic accuracy was 94.2%, with 92.7% sensitivity and 100% specificity. Arthrography of the ankle joint proved to be a quick and low-cost method providing good diagnostic results and no complications, thus allowing better preoperative planning in capsular and ligament injuries.

Adolescent↗
PubMed1984

Chronicity in major depression. A naturalistic prospective study.

In a prospective naturalistic study many of the 120 patients treated for a current major depressive episode continued to meet the criteria for a major depressive episode as defined by DSM-III during the whole follow-up period (from 1 to 4 years). The problem of compatibility between the chronicity of a full depressive syndrome and the definition of the major depression as episodic with possible relapses or recurrences is discussed. A relationship between chronicity and lack of adequate treatment at onset was found.

Age Factors↗
PubMed1984

[Preoperative embolization of intracranial meningiomas].

Embolization of very vascular intracranial meningiomas prior to operation will reduce the loss of blood during the operation. The indications and the technique of preoperative embolization are discussed and 20 cases are presented.

Adolescent↗
PubMed1984

[CT x-ray in recurrences of lumbar disk herniation. Usefulness of the examination with contrast enhancement].

The CT is an important and valuable instrument in the study of the postoperative lumbar spine, in the patients which presented persistent clinical manifestation. In this report the technique with contrast enhancement is outlined, the criteria for its interpretations are presented, and its advantages and limitations are reviewed; pitfalls in technique interpretation are stressed. Two hundred and fifty patients are referred to the CT without and with i.v. contrast medium for this diagnostic request: scar or herniation at surgery level.

Adult↗
PubMed1983

Immunologic reactivity in marrow graft recipients receiving cyclosporine to prevent graft-versus-host disease.

In vitro and in vivo immunologic parameters were determined in 26 patients treated continuously with cyclosporine to prevent graft-versus-host-disease (GVHD) after allogeneic bone marrow transplantation (BMT) for acute and chronic leukemia and for aplastic anemia. A group of 18 patients was tested 6 months after BMT and another group of 10 patients was tested after one year. At 6 months after BMT, 94% of the patients had normal serum IgG and IgM levels, whereas at one year 29% of them had low IgA levels. The proportion of patients with normal lymphocyte responses in vitro at 6 months after BMT was 69% and 76% for the responses to concanavalin A and to soluble antigens; 75% and 53% for the responses to allogeneic cells and pokeweed mitogen, respectively; and 89% for the response to phytohemagglutinin. All but one were able to generate suppressor cells upon con A stimulation. At one year after the graft, only one patient had demonstrable multiple abnormalities in in vitro tests. Skin test reactivity at one year was comparable to pre-graft reactivity. After BMT a lymphopenia persisted for 6 months. The rate of infectious complications was high during the first 3 months after BMT, and it diminished progressively as immune functions returned to normal. Infection was the cause of death in two cases (one disseminated cytomegalovirus infection and one septicemia). GHVD occurred in 12 patients; in nine of them the disease was transient and mild, only 1 patient developed severe chronic GVHD. Acute GVHD did not influence the tempo of immunologic reconstitution. In comparison to other studies, it seems that cyclosporine does not delay immune restoration, or increase morbidity from infection, while preventing GVHD and its complications efficiently.

Anemia, Aplastic↗
PubMed1979

[Lumbar phlebography: anatomy and technique (author's transl)].

This article describes the normal radiological anatomy of the epidural veins whose understanding is necessary for the correct interpretation of venographic studies. Three ways of achieving adequate visualization of the epidural venous plexus are described. Experience with 80 cases is reported; a comparison has been made among the degree of visualization of the epidural venous plexus, the length of time, the cost and the amount of radiation received by the operator and patients during the performance of each technique. Preference is expressed for simultaneous injection of contrast media via two needles introduced into right and left femoral veins.

Catheterization↗