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  • Key words Cardiac surgery – multiple organ failure (MOF) – adult respiratory distress syndrom (ARDS) – systemic inflammatory response syndrome (SIRS) – xanthine derivatives  (1)
  • Key words Hemofiltration  (1)
  • 1
    ISSN: 0930-9225
    Keywords: Schlüsselwörter Herzchirurgie – multiples Organversagen (MOF) – akutes Atemnotsyndrom des Erwachsenen (ARDS) – Systemic inflammatory response syndrome (SIRS) – Xanthinderivate ; Key words Cardiac surgery – multiple organ failure (MOF) – adult respiratory distress syndrom (ARDS) – systemic inflammatory response syndrome (SIRS) – xanthine derivatives
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The potential therapeutic effect of intravenous 3,7-dimethyl-1-(5-oxohexyl)xanthine (Pentoxifylline) in patients at risk for developing multiple organ failure following major cardio-thoracic surgery was assessed. Forty petients having APACHE II score values ≥19 at the first postoperative day after major cardio-thoracic surgery were randomized into two groups to receive either placebo (Control; n=25) or intravenous pentoxifylline (1.5 mg/kg/h) treatment (Pentoxifylline; n=15) as an adjunct to standard supportive therapy. The control group patients as compared to pentoxifylline treated patients required a longer period of time of ventilator support (8.3±3.1 days vs. 3.1±0.9 days; p〈0.05), experienced a higher incidence of renal failure (days on dialysis/hemofiltration: 6.8±3.3 vs 1.2±0.8; p〈0.05) and a longer ICU stay (11.4±3.1 vs. 5.2±1.1 days; p〈0.05). Overall mortality was not different between treatment groups. The results of this first clinical pilot study suggest that supplemental intravenous pentoxifylline treatment may decrease the incidence of acute lung injury and renal failure in patients after cardiac surgery.
    Notes: Zusammenfassung In einer ersten klinischen Pilotstudie wurde die Wirksamkeit einer kontinuierlichen intravenösen Infusion des Xanthinderivates Pentoxifyllin zur Reduktion der Inzidenz des akuten Lungenversagens bei Hochrisiko-Patienten nach großen herzchirurgischen Eingriffen untersucht. Unter 816 konsekutiv operierten Patienten wurden 40 Patienten mit einem hohen Risiko für die Entwicklung eines Multiorganversagens anhand des APACHE II Scores (≥19) am ersten postoperativen Tag identifiziert. Die Patienten wurden in zwei Gruppen randomisiert: Standard-Behandlung (Kontrolle n=25) oder Standard-Behandlung+Pentoxifyllin-Therapie (Pentoxifyllin n=15). Primäre Studienendpunkte waren die Dauer der Beatmungspflichtigkeit, die Inzidenz eines akuten Nierenversagens (Dialyse-/Hämofiltrationspflichtigkeit) und die Verweildauer auf der Intensivstation. Die Ergebnisse von 37 der 40 Patienten konnten ausgewertet werden. Die Pentoxifyllin-Therapie (kontinuierliche intravenöse Infusion von 1,5 mg/kg/h) wurde gut toleriert; es wurden keine anhaltenden signifikanten Nebenwirkungen beobachtet. Die Dauer der Beatmung war signifikant kürzer in der Pentoxifyllin-Gruppe (3,1±0,9 die) als in der Kontrollgruppe (8,3+3,1 die, p=0,037) Im Vergleich zu den mit Pentoxifyllin behandelten Patienten trat bei den Kontroll-Patienten häufiger ein therapiepflichtiges Nierenversagen auf (Dialysetage 6,8±3,3 vs. Pentoxifyllin-Gruppe: 1,2+0,8 die, p=0,048). Die Verweildauer auf der Intensivstation war signifikant kürzer bei den Pentoxifyllin-behandelten Patienten (5,2±1,1 vs. 1,4±3,1 die; p〈0,05). Die Gesamtletalität betrug 36% in der Kontrollgruppe und 33% in der Pentoxifyllin-Gruppe und war nicht signifikant unterschiedlich. Zusammengefaßt konnten wir in dieser ersten klinischen Pilotstudie zeigen, daß eine kontinuierliche Infusion von Pentoxifyllin bei Hochrisiko-Patienten nach großen herzchirurgischen Eingriffen die Inzidenz des akuten Lungen-, und Nierenversagens reduzieren kann.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1238
    Keywords: Key words Hemofiltration ; Cytokines ; Anaphylatoxins ; Hemodynamics ; Sepsis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective: To determine whether hemofiltration (HF) can eliminate cytokines and complement components and alter systemic hemodynamics in patients with severe sepsis. Design: Prospective observation study. Setting: Surgical intensive care unit of a university hospital. Patients: 16 patients with severe sepsis. Interventions: Continuous zero-balanced HF without dialysis (ultrafiltrate rate 2 l/h) was performed in addition to pulmonary artery catheterization, arterial cannulation, and standard intensive care treatment. Measurements and main results: Plasma and ultrafiltrate concentrations of cytokines (the interleukins IL-1β, IL-6, IL-8, and tumor necrosis factor α) and of complement components (C3adesArg, C5adesArg) were measured after starting HF (t0) and 4 h (t4) and 12 h later (t12). Hemodynamic variables including mean arterial pressure (MAP), mean central venous pressure, mean pulmonary artery pressure, pulmonary capillary wedge pressure, and cardiac output were serially determined. During HF, cytokine plasma concentrations remained constant. However, C3adesArg and C5adesArg plasma concentrations showed a significant decline during 12-h HF (C3adesArg: t0=676.9±99.7 ng/ml vs t12=467.8±71, p〈0.01; C5adesArg: 26.6±4.7 ng/ml vs 17.6±6.2, p〈0.01). HF resulted in a significant increase over time in systemic vascular resistance (SVR) and MAP (SVR at t0: 669±85 dyne·s/cm5 vs SVR at t12: 864±75, p〈0.01; MAP at t0: 69.9±3.5 mmHg vs MAP at t12: 82.2±3.7, p〈0.01). Conclusions: HF effectively eliminated the anaphylatoxins C3adesArg and C5adesArg during sepsis. There was also a significant rise in SVR and MAP during high volume HF. Therefore, HF may represent a new modality for removal of anaphylatoxins and may, thereby, deserve clinical testing in patients with severe sepsis.
    Type of Medium: Electronic Resource
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