Impaired cerebral vasoreactivity in type 2 diabetes mellitus.

The aim of our study was to assess cerebral vasoreactivity (CVR) in type 2 diabetes mellitus (DM2) and factors which may influence on it. According to previous studies, evaluating CVR in DM2 on the similar way, the results were dubious. For the evaluation CVR we used breath holding index (BHI) and transcranial Doppler ultrasound (TCD) in 50 patients with DM2 and 50 sex- and age-matched healthy controls. We observed epidemiologic and clinic data, other vascular risk factors and laboratory parameters. We found statistically significant difference in BHI between patients with DM2 (BHI = 0.69 +/- 0.31) and age- and sex-matched healthy controls (BHI = 1.33+/-0.28) (p < 0.05 ). Because of a significant correlation between BHI and age (p < 0.001) in healthy controls we made an adjustment of BHI for age before further analyses (BHIadj). In DM2 group we found a significant correlation between BHIadj and age (p = 0.0004), fasting glycemia (p = 0.04), and albuminuria (p = 0.04) (creatinine clearance in multivariate analysis (p = 0.007)). Our study has shown that CVR is impaired in DM2 patients and that it's severity was associated with age, fasting glycemia and renal function. Functional TCD is a very good screening method for detection and monitoring of cerebral microangiopathic changes in DM2 patients.

Quality of life in patients with multiple sclerosis.

Multiple sclerosis is a chronic, immune-mediated disease of the central nervous system that typically strikes young adults. It is often associated with a wide range of functional deficits and progressive disability. Common symptoms of multiple sclerosis include vision problems, spasticity, weakness, ataxia, bladder and bowel dysfunctions, fatigue, pain syndromes, tremors, vertigo, cognitive impairment, and mood disorders. Multiple sclerosis has a major negative impact on patient health-related quality of life (HRQoL). Quality of life (QoL) is a multidimensional construct composed of functional, physical, emotional, social and spiritual well-being. Researches have reported that individuals with multiple sclerosis have lower QoL than non-diseased and diseased populations. The inclusion of HRQoL questionnaires in the patient follow-up is a relevant issue to optimize treatment, facilitate treatment decisions and improve adherence, as well as to reduce the inconveniences derived from medication such as side effects.

Motor and cognitive impairment after stroke.

Cognitive abilities have great impact on rehabilitation program in stroke patients. Therefore, fast and practical psychometric assessment as an indicator of individual rehabilitation program is of great importance. The aim of this study was to analyze and compare motor and cognitive impairment in stroke patients in acute, subacute and chronic phase of the disease, taking age, sex, education, stroke risk factors, lateralization and type of stroke in consideration. The study included 50 stroke patients, 33 male and 17 female. Ischemic stroke was diagnosed in 78% and hemorrhagic stroke in 22% of patients. Hypertension was the leading stroke risk factor in 82% of patients. Cognitive impairment in acute, subacute and chronic phase of the disease was noticed in 12% of stroke patients with ischemia in the left brain hemisphere, mMMSE average score 31 and SKT score 19, IQ under 90. Better motor recovery in acute and subacute phase of stroke was followed by better cognitive status. All cognitively impaired stroke patients had low level of education, some had accomplished elementary education and others had not, all much below the dementia risk age of 75 years. Exclusion of patients with severe stroke from the study led to overestimation of the results. Finally, a coherent algorithm for somatic and cognitive stroke assessment in stroke patients poses itself as an imperative as a guideline for plastic, individualized and appropriate rehabilitation.

Red ear syndrome--chronic pain syndrome of low prevalence.

A case is described of a 72-year-old woman that presented to our outpatient neurology clinic complaining of relapsing attacks of severe pain in and around the left ear and ipsilateral side of the face, accompanied by objectively visible cutaneous erythema with burning sensation throughout the attack. There was no alteration in her neurologic status. Comprehensive tests were done to exclude the possible primary diseases. The findings were within the limits of physiological values. Attempts at treating the pain with various analgesics and a combination of analgesics and first generation anticonvulsants did not prove effective. The pain was slightly relieved with pregabalin in maximum dosage. Because of various potential pathophysiological mechanisms, literature does not indicate any unique potential treatment approach, and some patients are resistant to any kind of therapy.

The effect of stress hormones on cerebral hemodynamics in patients with chronic posttraumatic stress disorder.

The aim of the study was to assess the possible correlation between catecholamine and cortisol levels and changes in cerebral hemodynamics in patients with chronic posttraumatic stress disorder (PTSD). The study included 50 patients with chronic PTSD first ever hospitalized for psychiatric treatment and 50 healthy control subjects. All study subjects were aged 30-50. In PTSD patients, 24-h urine levels of the epinephrine and norepinephrine metabolites vanillylmandelic acid (VMA) and cortisol were determined and transcranial Doppler ultrasonography was performed on day 1 of hospital stay and repeated after 21-day psychiatric medicamentous treatment. On initial testing, increased level of 24-h VMA, decreased cortisol level and elevated mean blood flow velocity (MBFV) in the circle of Willis vessels were recorded in 25 (50.00%) patients. Repeat findings obtained after 21-day psychopharmaceutical therapy showed increased 24-h VMA, decreased cortisol and elevated MBFV in the circle of Willis vessels in seven (14.00%) patients (initial vs. repeat testing, P = 0.0002). Such parameters were not recorded in any of the control subjects (initial PTSD patient testing vs. control group, P = 0.0000). Study results pointed to a significant correlation between increased catecholamine levels, decreased cortisol level and elevated MBFV in the circle of Willis vessels caused by cerebral vasospasm. Psychiatric medicamentous therapy administered for three weeks significantly reduced the proportion of patients with concurrently altered cerebral hemodynamics, increased levels of catecholamine metabolites and decreased level of cortisol.