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Biomedical subjects

C Cipolla

Publications and source records attributed to C Cipolla.

At least 55 records · Page 3Linked to original sources

[Aculeate Hymenoptera pathology. Clinical, therapeutic and preventive aspects].

Dramatic cases of hymenoptera stings have been reported from various sources for several years now. According to recent statistic from North America 0.4-0.8% of the population have shown allergic reaction to these stings. There are no reliable statistics on Italy. After classifying the taxonomy of the Hymenoptera, the present report carefully analyses both the diagnostic and therapeutic aspects of these allergic responses and the preventive measures that can be used reduce the risk of hymenoptera stings.

Humans↗

Analgesic and hemodynamic effects of buprenorphine in acute infarction of the heart.

The analgesic, hemodynamic and respiratory effects of buprenorphine (0.3 mg i.v.) were monitored in 15 coronary care unit-admitted patients presenting with myocardial infarction who were in functional class I according to the Killip classification. At the time of the study, 8 of them had unequivocal precordial pain (group 1); the remaining 7 were painfree (group 2). The agent showed a prompt and potent analgesic action. It also induced a slight decrease in mean aortic pressure associated with a reduction in systemic vascular resistance and an increase in cardiac index, a rise in the pulmonary arterial pressure and arteriolar resistance and right atrial pressure, a reduction in arterial pO2 and pH and an increase in pCO2. Tension-time-indices of the left and right ventricles varied in parallel with variations in aortic and pulmonary artery pressure, respectively. These responses were probably unrelated to analgesia since they were similar in groups 1 and 2. Changes in systemic circulation were such as to possibly decrease the contractile effort and the oxygen need of the left ventricle and the size of infarction. On the contrary, the rise in pulmonary arterial pressure imposes a hemodynamic burden on the right ventricle that, depending on the patient's condition, may assume clinical importance. It is felt that the use of buprenorphine in myocardial infarction should be restricted to uncomplicated and selected cases.

Buprenorphine↗

[Clinical, diagnostic and therapeutic aspects of non-allergic forms of rhinitis: non-allergic rhinitis with eosinophilia syndrome and vasomotor rhinitis].

Two clinical syndromes of non-allergic rhinitis -- NARES and vasomotor rhinitis -- were studied. In recent years there has been a moderate statistical increase in both conditions which are still not easily diagnosed or treated, given the fact that they are often confused with allergic rhinitis. In this context a brief review of aetiopathogenic and physiopathological factors is followed by the suggestion of certain elements that may be assessed in order to obtain a more correct classification and diagnosis. Finally the drugs providing a more effective and long-lasting cure are listed.

Aerosols↗

[Occupational dermatitis in health care professionals: proposals for its prevention].

Authors have conducted an epidemiological study with regard to dermatitis contracted by health care professional. With this intention they examined approximately 562 cases of dermatitis contracted by contact. From these cases they evaluated the percentage of allergic and irritative forms of dermatitis with primary interest in the inflammatory processes and the principal antigens responsible. In conclusion, they have taken into consideration those which are preventive, environmental and personal interventions which could reduce the incidence of such risk.

Adult↗

Disparate unloading efficacy of the calcium channel blockers, verapamil and nifedipine, on the failing hypertensive left ventricle.

Calcium channel blockers reduce arterial smooth muscle tone and lower blood pressure. They may be regarded as left ventricular (LV) unloading agents. LV unloading efficacy of nifedipine (15 patients) and verapamil (14 patients) was tested in hypertensive decompensated patients, during a 1-month treatment period. Nifedipine persistently reduced systemic vascular resistance (SVR), mean arterial pressure, mean pulmonary wedge pressure (PWP), and LV diastolic diameter, and improved cardiac index and velocity of circumferential fiber shortening (Vcf). All of the patients had relief from dyspnea and reduction in heart size. The only side effect was ankle edema in six. Verapamil reduced SVR and mean arterial pressure and was not effective on PWP, LV diastolic diameter, and Vcf. The drug was discontinued in two patients who developed severe dyspnea at rest after 3 to 4 days of continuous oral treatment. Clinical symptoms and signs did not improve in the remaining patients despite persistent pressure reduction. A less potent vasodilating action of verapamil and a prominent depression in cardiac contractility may account for the differential results with the two compounds, in spite of a shared vasodilating antihypertensive effect. These findings indicate that functional changes in the failing hypertensive heart may differ from one calcium blocker to another as a result of interaction and relative preponderance of influence on afterload and contractility.

Cardiac Output↗

Clinical use of calcium channel blockers as ventricular unloading agents.

Calcium channel blockers relax the arterial smooth vasculature and lower blood pressure when it is elevated because of excessive vasoconstriction. They may be regarded as ventricular unloading agents. Nifedipine (11 cases, Group 1) and verapamil (12 cases, Group 2) were tested in hypertensive patients with cardiac enlargement (LV diastolic diameter greater than or equal to 60 mm), ECG signs of LV strain, lung congestion and dyspnea at rest, in an acute (nifedipine 20 mg; verapamil 160 mg) and 1-month (nifedipine 20 mg q.i.d.; verapamil 160 mg t.i.d.) therapeutic evaluation. In the acute study nifedipine reduced systemic vascular resistance (SVR), mean arterial pressure (MAP), mean pulmonary wedge pressure (PWP) and LV diastolic diameter (DD) and improved cardiac index (CI) and Vcf. In Group 2 verapamil reduced SVR and MAP, improved CI and was not effective on PWP, LV DD and Vcf. Verapamil was discontinued in 2 patients who developed severe dyspnea at rest after 3-4 days of continued oral treatment. At the end of the trial Vcf, PWP and LV DD were unchanged in the remaining subjects in Group 2 despite persistent pressure reduction. In Group 1 all of the patients had relief of dyspnea and lung congestion, reduction of heart size, persistent decrease of MAP and PWP, and improvement in Vcf. The only side effect was ankle edema in 4 cases. A less potent vasodilating action of verapamil and a predominant depression in cardiac contractility may account for the different results with the two drugs, in spite of a shared antihypertensive effect. These findings prove that functional changes in the failing hypertensive heart may differ after nifedipine compared to verapamil as a result of interaction and relative preponderance of influences on afterload and contractility.

Adult↗