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1.
J Psychosom Res ; 59(6): 399-405, 2005 Dec.
Article in English | MEDLINE | ID: mdl-16310022

ABSTRACT

OBJECTIVES: The aim of this study was to investigate the influence of age on the manifestation of narcolepsy symptoms and cognitive difficulties in patients with narcolepsy. METHODS: A total of 321 participants were included in the study: 157 were patients with narcolepsy from two Sleep Disorders Clinics and 164 were control participants. Narcoleptic patients were evaluated and diagnosed at the Sleep Disorders Clinic. All participants were interviewed by telephone using the Sleep-EVAL System. The interview comprised, among else, a detailed evaluation of narcolepsy symptoms and of cognitive difficulties. RESULTS: The first manifestation of the disease appeared early in life for most narcoleptic patients: 54.1% had their first symptom before the age of 20 years. Daytime sleepiness was the first symptom to appear in 65.5% of cases. In narcoleptics 60 years or older, cataplexy was more likely to be the first symptom to appear (47.4%) compared with other narcoleptic patients (21.4%; P<.05). Reported cognitive difficulties (attention-concentration, praxis, delay recall, orientation for persons, temporal orientation, and prospective memory) were higher in narcoleptic patients compared with the controls. The severity of daytime sleepiness and the presence of a major depressive disorder partly explained the cognitive difficulties. However, attention-concentration deficits and difficulties in prospective memory remained significant. Age was unrelated to cognitive difficulties in narcoleptics patients. CONCLUSIONS: The first manifestation of narcolepsy appears early in life. Reported cognitive difficulties are important in narcoleptic patients and are only partly explained by age, severity of daytime sleepiness, and major depressive disorder.


Subject(s)
Aging/physiology , Narcolepsy/physiopathology , Adolescent , Adult , Age Distribution , Aged , Child , Cognition Disorders/diagnosis , Cognition Disorders/epidemiology , Female , Humans , Male , Middle Aged , Narcolepsy/epidemiology , Severity of Illness Index , Surveys and Questionnaires
2.
Sleep Med ; 3(2): 115-20, 2002 Mar.
Article in English | MEDLINE | ID: mdl-14592229

ABSTRACT

OBJECTIVES: To assess the prevalence of insomnia disorders using DSM-IV classification, and the consequences of insomnia in the Italian general population. METHODS: A representative sample of the Italian general population composed of 3970 individuals aged 15 years or older were interviewed by telephone using the Sleep-EVAL system (participation rate: 89.4%). Participants were interviewed about their sleep habits and sleep disorders. DSM-IV classification was used by Sleep-EVAL to determine the sleep disorder diagnosis. RESULTS: Insomnia symptoms were reported by 27.6% of the sample. Sleep dissatisfaction was found in 10.1% and insomnia disorder diagnoses in 7% of the sample. The use of sleep-enhancing medication was reported by 5.7% of the sample. Most of these subjects were using anxiolytics. Dissatisfaction with sleep was associated with daytime sleepiness. Middle-aged drivers dissatisfied with their sleep were three times more likely to have had a road accident in the previous year compared to other drivers. However, fewer than 30% of subjects dissatisfied with their sleep or with an insomnia disorder diagnosis had consulted a physician about their sleep problem. CONCLUSIONS: As in other European and non-European countries, insomnia is widespread in Italy. The consequences are important. Appropriate recognition and treatment of insomnia should be part of an educational program for general practitioners everywhere.

3.
Pain ; 48(3): 377-382, 1992 Mar.
Article in English | MEDLINE | ID: mdl-1594260

ABSTRACT

Ten patients with organic nerve injury causing chronic neuropathic pain were tested for the effects of intravenous lidocaine versus saline upon psychophysical somatosensory variables. The variables assessed were the subjective magnitude of pain, area of mechanical hyperalgesia and presence and magnitude of thermal heat/cold hyperalgesia. The study methods applied to evaluate these conditions were the conventional testing of somatosensory submodalities with area mapping and the subjective magnitude estimation of spontaneous pain. It was found that spontaneous pain and mechanical hyperalgesia were consistently improved, transiently, by intravenous administration of lidocaine in all 10 patients; areas of hyperalgesia which extended beyond the territory of the nerve also improved transiently. Spontaneous pain and mechanical hyperalgesia, but not hypoesthesia, were transiently improved by injection of saline in only 1 of the 10 patients. This outcome is probably due to a placebo effect. This improvement is in keeping with the inhibition of anomalous neural impulses which can be generated anywhere along the sensory channels responsible for generating spontaneous pain and hyperalgesia. Thus, intravenous lidocaine is proposed as a diagnostic aid in the examination of patients complaining of complex sensory disorders associated with nerve injury. The transient pain relief may allow a fuller identification of the area of sensory loss.


Subject(s)
Lidocaine , Neuralgia/diagnosis , Adolescent , Adult , Aged , Blood Pressure/drug effects , Chronic Disease , Electrocardiography , Female , Humans , Lidocaine/adverse effects , Male , Middle Aged , Neuralgia/physiopathology , Pain Measurement , Pulse/drug effects , Sensation/physiology
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