[Ulcerative colitis and thrombocytopenia: a clinical case of fortuitous association?]. / Rettocolite ulcerosa e piastrinopenia: un caso clinico di associazione fortuita?

Ulcerative colitis (UC) is an inflammatory bowel disease of unknown etiology, involving primarily the rectum with major intestinal symptoms. Additionally, UC is often associated with extraintestinal manifestations, especially arthropathies, as well as with some autoimmune disorders. Vice versa, UC is rarely described in association with hematologic abnormalities, such as autoimmune hemolytic anemia and immune thrombocytopenic purpura with antiplatelet antibodies positive. Usually UC precedes the onset of thrombocytopenia by days or years or coincides with it. We report a case of UC and thrombocytopenia with negative anti-platelet antibodies in which an immunosuppressive therapy with corticosteroids obtained significant remission of intestinal symptoms along with a rapid increase of platelet count.

Prognostic significance of atrial fibrillation in thrombolysed and non thrombolysed patients.

AIM: Atrial fibrillation (AF) is considered a frequent complication of acute myocardial infarction (AMI). The aim of this study was to examine the incidence and prognostic significance of AF complicating AMI. METHODS: A total of 848 patients with AMI were examined evaluating: age, sex, coronary risk factors, incidence of AF, prior ischemic events, infarct location, electrocardiogram on admission, thrombolytic therapy, in-hospital complications and mortality. RESULTS: AF was recorded in 84 patients (9.9%). They were older (P<0.0001), less frequently smokers (P<0.007), had higher creatinekinase level (P<0.005) and more advanced heart failure (Killip class >or=2). AF was documented in non-thrombolysed more than in thrombolysed patients (11.2% vs 7.5%). Overall mortality resulted significantly higher in patients with AF (P=0.001); nevertheless it did not result as independent predictor of mortality. Instead, independent predictors of mortality have been Killip class >or= II (P<0.0001), age (P<0.0001) and prior infarction (P<0.002 ). CONCLUSIONS: In our experience, AF cannot be considered an independent predictor of mortality. Contrary, advanced heart failure, either in thrombolysed or not-thrombolysed patients, is an independent predictor of AF and mortality. Nevertheless, AF represents an expression of advanced heart failure, that is worsened by the development of arrhythmia with severe consequences on prognosis.

[Circadian variations in the onset of acute myocardial infarction]. / Variazione circadiana dell'insorgenza dell'infarto miocardico acuto.

BACKGROUND: Several studies have observed a circadian pattern in the onset of acute myocardial infarction (AMI), with a peak incidence in the morning hours. It has been suggested that different circadian rhythms may exist in various subgroups of patients. METHODS: This study sought to determine whether the circadian incidence of AMI varied by sex, age, cardiovascular risk factors, previous history of ischemic accidents, the site of AMI, and the short-term outcome. These possibilities were examined in a population of 597 consecutive patients with AMI, admitted to the coronary care unit. 548 patients have been included in the study, 442 men (80.6%) and 106 women (19.4 %); mean age 64.5 years. RESULTS: A peak incidence of AMI was found between 06.01 a.m. and 12.00 a.m. (32.4%; p<0.0002). This peak was present in patients 65 years old (33.2%; p<0.005), in men (32.5%; p<0.0002) but not in women, in smokers (32.1%; p<0.0005) and in those that did not smoke (33.0%; p<0.04), in patients with hypercholesterolemia (34.9%; p<0.006 ) and without hypercholesterolemia (31.1%; p<0.03). A circadian rhythm was absent in diabetics, hypertensives and in patients with a history of previous cardiovascular events. Regarding the site of AMI, inferior AMI showed an increased incidence between 06.01 a.m. and 12.00 a.m. (36.2%; p<0.002), while the circadian distribution of anterior AMI, as well as non-Q wave AMI, did not show this incidence. Finally, higher mortality was reported in patients with an AMI onset at night (22.3%). CONCLUSIONS: These results give further clues in understanding the external and inner factors acting in the morning hours as triggers for AMI.