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PubMedDate not supplied

Organ-specific support in multiple organ failure: pulmonary support.

The catastrophic pulmonary failure that complicates management of patients with multiple trauma or sepsis syndrome with shock is recognizable to nearly all experienced surgeons. However, the spectrum of injury is broad, the distribution of lung injury may be heterogeneous within a single patient, and many patients will not develop acute respiratory distress syndrome (ARDS) even after a major predisposing insult. The lung responds stereotypically to many disparate insults, so a better conceptual construct of ARDS may be to consider it as one component of the multiple organ dysfunction syndrome. Support of oxygen transport with positive pressure ventilation and high levels of positive end-expiratory pressure, long the mainstay of pulmonary support, has been criticized for its predilection to cause barotrauma. Newer modes of ventilation, such as pressure-controlled, inverse-ratio ventilation and permissive hypercapnia, are under investigation but have not yet been reported with scientific rigor. However, pulmonary support extends beyond the support of gas exchange. Fluid management requires close attention so that the circulation is supported but lung water accumulation is minimized. Nosocomial pneumonia greatly increases the mortality rate in ARDS, but is difficult to diagnose and must be sought aggressively. Until recently, pharmacologic therapy has held little promise, but inhalation of very low concentrations of nitric oxide appear to decrease pulmonary vascular pressures and intrapulmonary shunt. It remains unknown whether nitric oxide is effective therapy for the underlying injury, or is simply treatment for certain manifestations.

Acute Disease↗
PubMed1995

[A case of multiple organ failure induced by postoperative radiation therapy probably evoking oxidative stress].

In recent years, several laboratories have suggested that serum levels of antioxidant activity and redox balance are reduced in patients with chronic renal failure. Some clinical reports have also proposed that defective serum antioxidative enzymes may contribute to a certain uremic toxicity through peroxidative cell damage. A 48-year-old woman was referred to us from the surgical department of our hospital because of consciousness disturbance, pancytopenia and acute acceleration of chronic azotemia after postoperative radiation therapy. We diagnosed acute acceleration of chronic renal failure with severe acidemia and started hemodialysis therapy immediately. Two days after admission to our department, she developed upper abdominal sharp pain and bradyarrhythmia. Serum amylase activity was elevated markedly and the ECG finding showed myocardial ischemia. On the 24th hospital day these complications were treated successfully with conservative therapy and hemodialysis. We considered that radiation therapy in this patient with chronic renal failure evoked marked oxidative stress and that deficiency of transferrin played an important role in peroxidative cell damage.

Female↗
PubMed2001

[Scoring multiple organ failure after severe trauma. Comparison of the Goris, Marshall and Moore scores].

INTRODUCTION: MOF scores are used to predict, describe and define organ failure. The aim of this study was to compare MOF scoring systems regarding their precision. METHODS: Data on the ICU course of 301 severely injured patients (PTS > 20, age > 16 years) were documented daily for calculation of three MOF Scores (Goris, Moore, Marshall) for 14 days. Every day the patients were graded by clinical criteria into a group with and a group without MOF by an experienced intensive care physician. The cut-off point for MOF was determined by ROC analysis for each score; the sensitivity and specificity were calculated. RESULTS: The patients were 36.3 +/- 1.0 years old, the mean injury severity was 36.2 +/- 0.7 points according to the PTS. Forty-seven (15.6%) of all patients died 17.7 +/- 5.6 days after trauma. The MOF incidence was 26.1%, the MOF mortality 58.4%. The calculated cut-off point for MOF was more than 4 points for the Goris and Marshall scores and more than 3 points for the Moore score. The Moore score is, with sensitivity of 81% and specificity of 88%, superior to the other scores. The Moore score identified 93 patients (30.9%) for MOF; this corresponds with a right answer in 85%. The lower specificity of the Goris and Marshall scores was due to the judgement of liver (GOT) and cardiovascular (PAH) dysfunction respectively. CONCLUSION: For evaluation of MOF after severe trauma the Moore score is superior to other scoring systems (sensitivity 81%; specificity 87%). A score of more than 3 points is associated with MOF. The Moore score did not consider distinct parameters (S-GOT, PAH) which are included in the other systems and were of little importance in our calculations.

Adult↗