PubMed · 7932251
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B L Erstad. 1994. Fluid replacement therapy.. https://pubmed.ncbi.nlm.nih.gov/7932251/
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Object of this review is to present the physiological principles, diagnostic techniques and therapeutic options that are related to modifications of oxygen delivery in sepsis. Despite intense research activities in this area, many topics regarding oxygen transport and oxygen consumption in sepsis are still not clear. For example, the often discussed shift of the critical value of oxygen delivery to higher values in sepsis has not been proven, yet. Beside an impaired regional perfusion also disturbances in the cellular oxygen utilization may be responsible for organ failure in sepsis. Until now, it was not shown, whether the increase of oxygen delivery to supranormal levels reduces mortality in septic patients. It is also unknown, which catecholamine and which infusion solution is suitable for the treatment of septic patients. In future further research is necessary to solve the problems associated with sepsis therapy.
We describe a five-week-old boy who had seizures and extreme hypernatraemia secondary to ingesting an improper home-made formula. Initial sodium concentration was 211 mmol.l-1. Other clinical and biological features were moderate dehydration and renal insufficiency with generous urine output and high urinary sodium concentration. Fluid therapy with hypotonic dextrose solution corrected the volume deficit in 48 h and progressively decreased the serum sodium concentration. During ICU stay the patient developed recurrent episodes of seizures and pulmonary oedema requiring mechanical ventilation for five days. Recovery was complete with no abnormal sequelae after a ten-month follow-up. Salt poisoning is in unusual cause of extreme hypernatraemia. It can be safely managed with fluid therapy alone if urine output is preserved, with progressive decrease of serum sodium as target. If this condition is recognized, outcome should be favourable.
An approach to intraoperative fluid management based on a monitored physiologic application of the Starling principles of cardiac function is recommended to individualize therapy to optimize hemodynamic function and tissue perfusion. The complexity of intraoperative fluid administration, beginning with preoperative cardiovascular function followed by innumerable intraoperative considerations, including anesthetic pharmacology, positive pressure ventilation, operative site, and surgical technique may lead to serious intraoperative and postoperative complications. Emphasis must be given to intraoperative fluid shifts resulting in hidden fluid loss and intravascular hypovolemia that must be replaced. Explanations for this fluid redistribution have included tissue trauma, endotoxemia, and proinflammatory cytokines with resultant increased capillary permeability.