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Biomedical subjects

P Moroni

Publications and source records attributed to P Moroni.

49 records · Page 3Linked to original sources
PubMedDate not supplied

EMG activity of the orbicularis oculi muscle in normal and in individuals indicated to receive eye prosthesis, before and after its placement.

To analyze comparatively through electromyography (EMG) the orbicularis oculi muscle from normal patients and those indicated to receive eye prosthesis (treated patients), it was studied 24 male patients with a mean age of 32.5 years old, who were divided into 2 groups as follows: 12 individuals with absence of the left eyeball and indicated to receive prosthesis (treated); 12 normal individuals (control). The work was performed in 4 different clinical conditions: initial resting; normal opening and closure of the eyelids; forced opening and closure of the eyelids and final resting, before and after placement of eye prosthesis. The exams were made using an Electromyograph K6-I Light Channel and Surface Electrodes. By the results obtained under the work conditions, we can conclude that: the use of eye prosthesis did not interfere in the clinical conditions of opening and closure of the eyelid; the loss of the eyeball increases the EMG activity of the orbicularis oculi muscle; the use of eye prosthesis for a period of 7 days, was not enough to diminish the muscular activity, even its perfect adaptation been evidenced clinically.

Adult↗
PubMedDate not supplied

[Dermatitis in VDT operators: a review of the literature].

The paper reports studies on the relationship between work with VDT's and dermatitis in the operators. From the first observation in 1979, numerous studies have been carried out to try and explain the reason why some forms of dermatitis like rosacea, eczema seborrhoeic and erythematitis appeared more frequently in VDT operators compared to the general population. The various authors at present consider low indoor air humidity associated with a strong electrostatic field to be essential factors in the occurrence of dermatitis. Laboratory experiments have shown that the presence of a strong electrostatic field does not seem to be important in itself. Similarly, it is agreed that X, UV-A or UV-B radiations do not play any causative role in dermatitis. Further investigations are required to assess the influence of indoor climatic factors and the presence of irritant substances in the air of the working environment.

Computer Terminals↗
PubMedDate not supplied

[Interdigital pilonidal sinus in barbers].

Three cases of barber's hair sinus of the hand are presented. The lesion is produced by the penetration of extraneous short hairs into the interdigital spaces of the hand. The hairs produce an inflammatory reaction and foreign body granuloma. The clinical picture is usually benign but can be complicated by repeated infection which may require surgery. The structure of the lesions varies from epithelial-lined tract, cyst with surrounding foreign body reaction, to fibrotic cicatricial tissue. The exact reasons for the lesion are not known, but several theories are offered. It is, however, clear that since the 1970's Italian barbers have changed their methods of cutting hair, using their hands more than the customary instruments, i.e., combs, brushes, etc. The authors discuss the occupational problems due to the complications of disabling lesions.

Adult↗
PubMedDate not supplied

[Contact dermatitis of the hands in housewives: preliminary data of a multicenter study].

The preliminary results of a survey carried out by the Institutes of Dermatology of Bari and Florence Universities and by the Clinica del Lavoro of Milan University are analyzed. The survey, whose aim is to identify the causes of contact dermatitis on housewives' hands and whose conclusions are forecasted for June 1990, will examine 1,650 female people, 1,050 of which are ill and 600 are case-controls. The results of the first 617 cases (514 ill and 103 case-controls) are reported. The anamnesis has shown that the hands (in 488 cases) are the most affected part of the body, that the most frequent symptoms are itch and burning sensation (in 410 cases), and that cosmetics, followed by detergents and softeners, are considered by the patients among the products more responsible for these symptoms. The allergic tests, even if with a different percentage of incidence, have shown metals (above all nickel), rubber additives and resins as the main aptens. Another survey, also in progress, concerning the search of metals in detergents and in washing waters for pollution caused by abrasives, pots, Inox sinks, pipes and tabs of the water system, is reported.

Dermatitis, Contact↗
PubMedDate not supplied

[Dermatopathies in the domestic worker: the Lombard experience].

In order to identify the etiopathogenesis of cutaneous diseases in housewives, a questionnaire was made, and the gathered data are here described. 1,824 people have answered this questionnaire: 1,007 have reported lesions with a suspicious immunological pathogenesis. The commercial products which were reported as a cause of the dermatitis have been 834. In a group of 142 housewives (86 with allergic contact dermatitis and 56 with irritative contact dermatitis), the allergic sensitizations to the chemicals in the detergents were tested. 21% of the cases had positive cutaneous reactions for nickel salts and 8.4% for chromium salts. The analysis in atomic absorption method of these metals in 34 commercial products has shown their presence in almost all the samples. Hypothesis are formulated to find the source of these polluting substances. The aims and the methods of a investigation carried out on 1.800 housewives, who are going to be controlled in order to estimate the prevalence, the clinical kinds and the etiopathogenesis of dermatitis related to house work, are described. The study will be carried out at the Occupational Health Institute "Clinica del Lavoro L. Devoto" of Milan and at the Dermatological Departments of the Universities of Bari and Florence.

Dermatitis, Occupational↗
PubMedDate not supplied

Occupational contact psoriasis.

Occupational psoriasis accounts for about 1.2% of all cutaneous pathologic conditions due to work. It is especially important for subjects with slight signs of psoriasis, since patients already suffering from clear illness spontaneously avoid traumatic activities. Our interest was directed to cutaneous symptoms, signs for identifying subjects predisposed to traumatic dermatitis, also useful in vocational guidance. The necessity of official acknowledgement of such work-related dermatological pathologies is suggested.

Dermatitis, Contact↗