Direct guided restorations from planning to definitive restoration: A clinical report.

A direct composite resin placed by using digitally planned prototyped 3D guides and retained with a digitally guided fiberglass micropin was used to restore an extensively damaged maxillary left central incisor.

Clinical-tomographic evolution of a giant intracranial aneurysm. Case report.

The Authors report about the case of one patient with stroke picture of aphasia and right pyramidal deficiency hemisyndrome evidencing at the CT a picture of multiple bilateral malacic areas associated with a picture of bilateral megadolichosiphon. The later tomographic controls evidenced the occurrence of a right latero-supra-sellar expansive injury compatible with a picture of giant aneurysm of the homolateral carotidal siphon. The Authors analyze the clinical, neuroradiological and anatomopathologic findings in the light of the present publications in the recent literature.

[Comparison of high-resolution arterial echography and angiography in the diagnosis of atheromatous lesions of the external carotid]. / Confronto tra ecografia arteriosa ad alta risoluzione ed angiografia nella diagnosi delle lesioni ateromasiche della carotide extracranica.

Personal experience about a correlative study on ultrasonographic and angiographic methods executed on carotid artery is reported. Usual techniques are described and result discordances are considered. Stenosis level is subdivided in four different types: normal, less than 45, 45-75%, greater than 75%. Authors examine in which stenosis range one technique can be superimposed on the other one and show limits and possibilities. Moreover complementary and interdependence position of these two techniques are stressed with respect to atherosclerotic disease study.

The use of human fibrin glue and of the suture in polyglactin 910 in extraintracranial by-pass.

At the Division of Neurosurgery of Fatebenefratelli-Oftalmico Hospital in Milano, 12 of the last 22 temporosylvian anastomosis have been performed employing sutures with separate points in mixed materials, partly nylon and partly Polyglactin 910 (reabsorbable) in order to avoid as much as possible the disadvantages of permanent sutures; in the other 10 consecutive cases reducing about 50% the points of suture and employing human fibrin glue as complement of the suture, in order to respect better the arterial wall and to reduce significantly the critical times of the operation (clampage). The Authors compared the clinical and instrumental results of the patients of this series with the ones of a previous series operated with traditional technique and pointed out a better success in the last operations (mixed materials and fibrin glue).

Cerebral arterial spasm after subarachnoid hemorrhage. A case report with SPECT and iodine-123 HIPDM.

Cerebral arterial spasm following subarachnoid hemorrhage can be responsible for secondary neurological deficits and can influence history, prognosis, and results of surgical treatment. The demonstration of vasospasm can be important for therapy. The use of I-123 HIPDM and SPECT in evaluating regional cerebral blood flow showed the effects on cerebral perfusion of diffuse arterial spasm in a case of subarachnoid hemorrhage and its recovery. There was a parallel with clinical neurological status.

[Acetylsalicylic acid in the treatment of ischemic cerebrovascular disorders]. / L'acido acetil-salicilico nella terapia delle vasculopatie cerebrali ischemiche.

An examination of 80 patients with ischaemic cerebrovascular disease, subdivided into 5 groups according to platelet antiaggregant treatment, demonstrated the insufficient effectiveness of acetylsalicylic acid in preventing recurrences. The drug failure can most probably be attributed to its particular action mechanism or to dosage.

[Ditazol in the therapy of ischemic cerebrovascular diseases. Clinical results and laboratory experiments (22-to-34-month clinical follow-up)]. / Il ditazolo nella terapia delle vasculopatie cerebrali ischemiche. Risultati clinici ed esperienze di laboratorio (follow-up clinico 22-34 mesi).

A sample of 29 patients suffering from ischaemic cerebrovascular disorders was examined. Of these, 15 were treated with Ditazol (1200 mg/day in three administrations) and 14 with ASA (1 g a day in 2 administration). These patients were evaluated using serial Born and Cross tests to check ADP, Adrenaline and Collagen-induced platelet aggregation. The clinical follow-up lasted 22-34 months. As part of the laboratory evaluation, this sample was also compared with a group of 34 healthy volunteers. Ditazol was found to be an inhibitor of ADP, Adrenaline and Collagen-induced platelet aggregation: this effect constitutes clinical protection against recurrence of the complaint. Recurrence was 13.3% with Ditazol treated patients and 35.7% with ASA.

[Ischemic cerebrovascular disease: treatment with various anti-platelet aggregation drugs. Clinical follow-up of 80 patients (22-34 months)]. / La malattia cerebrovascolare ischemica: il suo trattamento con differenti farmaci antiaggreganti piastrinici. Follow-up clinico di 80 pazienti (22-34 mesi).

Personal experience in the treatment of Ischaemic Cerebrovascular Disease with platelet suppressant drugs is reported. 80 patients were treated with 5 different protocols: 1) group "A": dipyridamol (14 patients); 2) group "B": acetylsalicylic acid (ASA) (14 patients); 3) group "C": dipyridamol and ASA (22 patients); 4) group "D": ditazol (15 patients); 5) group "E": isoxsuprine resinate (15 patients) and followed-up for 22-34 months. The evolution of the disease is discussed and recurrences evaluated on the basis of initial clinical features and particular treatment given.

[Resinated isoxsuprine in the therapy of cerebral ischemic vascular diseases]. / L'isossisuprina resinato nella terapia delle vasculopatie cerebrali ischemiche.

An examination of 80 patients with ischaemic cerebrovascular disease, subdivided into 5 groups according to platelet antiaggregant treatment, demonstrated the effectiveness of resinated Isoxysuprine in preventing recurrences. The drug's success can most probably be attributed to its particular action mechanism.

Radioisotope cisternography in head-injured patients.

Of 600 patients submitted to radioisotope cisternography carried out with radioiodinated human serum albumin (I131-HSA) a group of 140 had head injuries. Our investigation was intended to study the modifications of CSF circulation and absorption which accompany cranio-cerebral trauma. Of 88 head injured patients who did not undergo operation 44 had transient loss of consciouness, and 44 were in prolonged coma. Fifty-two patients underwent operation. Of these 5 had skull fractures with dural lesions, 7 had extradural haematomas, 19 had subdural haematomas, and 21 had brain contusions. Cisternograms were performed at different time intervals after trauma, and in some instances the test was repeated in order to study the possible long tern alterations of CSF circulation and absorption. Abnormalities of cisternographic pictures are classified into the following groups: 1 degree asymmetric diffusion; 2 degree operative cavity stagnation; 3 degree ventricular reflux; 4 degree associated abnormalities. Cisternographic features are analysed in relation to the corresponding clinical and pneumoencephalographic patterns in the patients examined. These investigations may enable us to recognise possible indications for shunt procedures in the management of CSF absorption defects, which are so frequently apparent after head injury.