Summary:Patients admitted acutely to a geriatric medical unit were interviewed on admission about their opinions on cardiopulmonary resuscitation (CPR). They underwent a general examination and their mental health was documented by completing the geriatric depression scale. Those who did not wish CPR in the event of a cardiac arrest were questioned again on recovery.Of 216 patients admitted, only three objected to answering the questions and after the other exclusion criteria were applied, 100 patients were included in the study. A total of92% of patients wished CPR in the event of a cardiac arrest. The 8% who did not wish CPR contained more people scoring high on the geriatric depression scale. After recovery, three of that eight had changed their minds and wished CPR if required.Patients who are acutely unwell may make decisions that are influenced by their condition at this point in time and it is important to recognize that these decisions may not be maintained. In this study, consultant geriatricians did not reflect their patients' desires in making decisions about who should receive CPR if required.
Linear D2‐m‐carborane‐siloxanes with one, two, and three trifluoropropyl moieties per repeat unit were prepared by the condensation reaction between bisureidosilanes and carborane disilanol. Molecular weights between 100,000 and 220,000 were obtained. Compared to fluorosilicones, the trifluoropropyl‐modified carborane‐siloxanes exhibited greater thermal and oxidative stability and in certain cases comparable solvent resistance. The swelling index for carborane‐siloxane elastomers decreased with increasing trifluoropropyl content, although this fluorocarbon moiety did compromise the thermal stability of the carborane system.
SynopsisA D2-rn-dodecacarboranesiloxane containing alternating block copolymer +A-B+n was prepared by the reaction of a ureidosilane-terminated polysulfone hard block with a carboranesilanol-terminated carboranesiloxane oligomer. The resulting block copolymer exhibited thermoplastic elastomeric behavior. This unique polymer had excellent thermal stability up to 400°C.
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