51 research outputs found
Carboxyhaemoglobin and fatal methylene chloride poisoning.
No full textA double case of fatal poisoning as a result of acute inhalation exposure to high air concentrations of dichloromethane resulting in high carboxyhaemoglobin level
TRANSESOPHAGEAL ECHOCARDIOGRAPHY DURING PERCUTANEOUS BALLOON MITRAL VALVULOPLASTY
No full textL'ecocardiogramma transesofageo è fondamentale nell'esecuzione della valvuloplastica mitralic
Outcome of 290 patients with aortic dissection. A 12-year multicentre experience.
No full textRetrospective data regarding 290 patients suffering from spontaneous aortic dissection between January 1976 and June 1987 are reported. Dissection was always documented by retrograde aortography and data were collected from 11 catheterization laboratories operating in North-East Italy. The results show that over a 12-year period there was an increase in cases, an increase in the number of operations and a decline in operative mortality. Multivariate discriminant analysis demonstrated that acute myocardial infarction, persistent shock and persistent central neurologic deficit were significant independent predictors of operative mortality in type A patients. Only persistent shock was significantly related to higher operative mortality in type B patients. Late deaths occurred in 14/118 operated patients, and were mostly secondary (directly or indirectly) to aortic dissection. Discharged patients underwent frequent medical checks and chronically received drugs to control hypertension and reduce inotropism. Most of them (73.7%) were asymptomatic: careful post-operative medical assistance is necessary to guarantee the long-term success of surgical treatment
Short-lasting hemodynamic and clinical benefits from percutaneous balloon valvuloplasty for calcific aortic stenosis.
No full textIn order to evaluate the short- and mid-term results of percutaneous aortic balloon valvuloplasty, 40 consecutive elderly patients, who had undergone balloon valvuloplasty for calcific aortic stenosis, were prospectively followed up by means of clinical and echo-Doppler examinations. Although valvuloplasty often dramatically improves hemodynamics and relieves symptoms, these benefits seem to be short-lived in most cases. Restenosis, defined as a loss of 50% or more of the increase in aortic valve area obtained by the dilatation, has a very high rate of occurrence. Aortic balloon valvuloplasty should therefore be reserved for truly inoperable cases and can be performed in hemodynamically unstable patients, who may later undergo surger
[Short- and mid-term results of percutaneous aortic valvuloplasty for calcific aortic stenosis in elderly patients].
No full textValue and limitations of transesophageal echocardiographic monitoring during percutaneous balloon mitral valvotomy
No full textLeft atrial radiofrequency ablation during cardiac surgery in patients with atrial fibrillation: clinical determinant of successful
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Value and limitations of transesophageal echocardiographic monitoring during percutaneous balloon mitral valvotomy.
No full textTo determine the utility of transesophageal echocardiographic monitoring during percutaneous balloon mitral valvotomy, we analyzed data from 40 consecutive patients who had been randomly assigned to undergo balloon mitral valvotomy under transesophageal echocardiographic guidance or without echo. All procedures were carried out under general anaesthesia. The completion rate (100% vs 73%), the procedure time (108 +/- 28 min vs 65 +/- 18 min), the X-ray exposure time (62 +/- 13 vs 33 +/- 12 min), resulted significantly (P less than 0.001) more favorable in the echo-monitored patients. Moreover, a lower rate of major complications (cardiac tamponade, large residual atrial shunting, and severe mitral regurgitation) was noted in the echo-monitored patients. The achieved final area of the mitral valve did not differ significantly between the two groups. From an evaluation of results as a whole, 96% of the echo-monitored procedures were successful, whereas only 40% of the procedures conducted without echocardiographic control achieved a satisfactory final result in absence of major complications. We conclude that transesophageal echocardiography is a safe, effective, and valuable tool to monitor each step of balloon mitral valvotomy in order to shorten the time of the procedure, and to improve the results of this complex interventional catheterization technique
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