PubMed · 9542425
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B de la Calle Reviriego, P Albert de la Cruz. 1997. [Mechanical ventilation].. https://pubmed.ncbi.nlm.nih.gov/9542425/
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Steam-sterilizable membrane probes for monitoring the dissolved oxygen level in fermentors, or the oxygen content of gas streams, are described. The probes have a silver cathode, a lead anode, and an acetate buffer as an electrolyte. The membrane is Teflon. The current output of the probes in the absence of oxygen is negligible.
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The invasive treatment modalities available für BPH can be divided into interstitial therapy without removal of tissue (e.g. stents), and those involving delayed tissue ablation (thermal/coagulation procedures, e.g. laser ablation, microwave thermo-ablation, high-intensity ultrasound). The latter procedures (coagulation) more often permit a nonbloody intervention, the sphincter usually remains uninjured, and retrograde ejaculation is less frequent. A third group of options is interventional treatment, with immediate ablation of tissue (vaporization, resection), which is more invasive and associated with a higher risk of complications than the two first-mentioned groups. An advantage of these options is the avoidance of a longer-term catheterization with its associated risks. Help is provided for deciding which procedure should be used in which patient.