Med Klin
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To determine the short-term hemodynamic and clinical effects of levosimendan, a calcium-sensitizing agent, in patients with decompensated heart failure. ⋯ Levosimendan causes rapid improvement in hemodynamic function in patients with cardiogenic shock. These hemodynamic effects are not associated with relevant adverse events. Levosimendan may be of value in the short-term management of patients with cardiogenic shock.
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Although validated instruments are readily available for structured outcome assessment, this has been rarely employed in German intensive care units yet. Analysis of the effectiveness or efficiency of intensive care medicine without systematic assessment of outcomes and underlying structures and processes is impossible. Detailed knowledge of outcomes is mandatory, when continuous quality improvement is warranted. ⋯ Owing to the advancement of medicine regular updates of guidelines are mandatory. Moreover, targets for the quality assessment need to be adjusted accordingly. This finally leads toward a continuous quality improvement process.
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The future perspectives of cardiovascular intensive care medicine (CVICM) are affected by an ever increasing number of elderly (> 65 years), old (> 75 years) and very old (> 85 years) patients with the incidental clinical consequences, by an increase in inpatient days due to the increasing number of patients who have to be treated despite cost pressure, and by the attempts to integrate CVICM into one interdisciplinary intensive care unit (ICU) including medical and surgical patients, although proof of equal or even superior outcome, process or structural quality is lacking presently. To overcome all the problems mentioned, CVICM must develop from a mainly consensus-oriented to a more evidence-oriented medicine; CVICM must find ways to improve the poorly validated hemodynamic monitoring concept by pulmonary artery catheter and look for additional, less invasive monitoring techniques and better monitoring parameters; CVICM must support the search for new and hopefully better pharmacotherapeutic agents and cardiovascular assist devices as presently available to support the failing heart and the impaired vascular system; and CVICM must also learn to control noncardiac processes like inflammation and multi-organ failure, which often are responsible for the fatal outcome of the ICU patient with cardiovascular disease. Real challenges for the cardiovascular intensivist are refractory shock and refractory septic cardiomyopathy, these cardiovascular disease entities being responsible for every other fatality in the wake of severe sepsis and septic shock. To handle these tremendous challenges of CVICM, training of the young cardiologists in CVICM must be intensified, and much more attention to cardiovascular topics and techniques must be paid when training our colleagues in medical intensive care medicine.
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Crucial for the management of acute renal failure is the differentiation in a prerenal, renal and postrenal form. Prerenal acute renal failure, i.e., hypovolemia, and postrenal acute renal failure, i.e., urinary obstruction, can be treated specifically, and generally, these forms of acute renal failure resolve quickly. By contrast, for intrinsic acute renal failure with acute tubular necrosis, there is no specific therapy and supportive care is necessary until renal function resumes. ⋯ With the incidence of acute renal failure, the prognosis of intensive care patients deteriorates significantly. Temporary extracorporeal detoxification is often necessary, until eventually, there is a restitution of renal function. The prognosis of acute renal failure in intensive care patients is poor, if there is preexisting renal disease or the cause of the acute renal failure cannot be eliminated.
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Noninvasive ventilation refers to mechanical respiratory assist not requiring an endotracheal airway. Potential advantages include the reduction of complications resulting from intubation and invasive long-term mechanical ventilation and possibly a reduced time demand on medical personnel in the long run. Patients with additional severe organ failure, lacking ability to cooperate or high risk of aspiration are not suitable for noninvasive ventilation. ⋯ For pulmonary edema noninvasive CPAP (continuous positive airway pressure) reduces the symptoms and the need for intubation, although studies have not demonstrated a reduction in mortality. In other forms of acute respiratory failure noninvasive ventilation may be helpful, but its final role still has to be established. In these patients a trial of noninvasive ventilation appears to be safe as long as patients are carefully selected and intubation is not prolonged.