RESUMO
Background/aim: The number of elderly people (≥65 years old) is increasing both in Turkey and internationally due to improved living conditions and decreased mortality rates. Knowing the characteristics of elderly patients admitted to emergency departments can provide guidance for diagnosis and treatment approaches. In this study, we analyzed the characteristics of very old patients (4≥85 years old) admitted to the emergency department and put together data for use in forward planning in healthcare services.Materials and methods: This retrospective study included all patients aged ≥85 years admitted to the Adult Emergency Department of Gazi University Medical Faculty Hospital between 01.01.2014 and 31.12.2014. Data concerning the patients' age, sex, date of admission, weekday or weekend admission, reason for admission, length of stay, number of readmissions, admission from within or outside the province, and whether they were hospitalized or not were evaluated.Results: In this study, 1105 admissions of 780 patients aged ≥85 years to the emergency department were analyzed. The median age of the patients was 87 years and 59% were female. The most frequent admissions were in January (11.4%). Most patients (63.1%) were admitted only once to our emergency department within the study period. A total of 40.5% of patients were hospitalized in the clinics or intensive care units. The rate of mortality at first admission was 1.5% (12 patients). The most common complaints at admission were infection (13.3%) and soft tissue traumas (crashes, sprains, fractures, dislocations) related to the musculoskeletal system (11.8%). Readmissions were more frequent in males. It was seen that male patients were more frequently admitted due to deterioration of general health status and genitourinary system symptoms, despite pain being more common among women.Conclusion: Due to the changing population structure, emergency staff in Turkey as well as internationally encounter old and very old patients more frequently. It is now imperative that emergency departments acquire the necessary infrastructure, human resources, knowledge, and equipment needed to meet the needs of these patients.
RESUMO
This paper proposes a novel method for measuring blood plasma and serum viscosity with a microcantilever-based MEMS sensor. MEMS cantilevers are made of electroplated nickel and actuated remotely with magnetic field using an electro-coil. Real-time monitoring of cantilever resonant frequency is performed remotely using diffraction gratings fabricated at the tip of the dynamic cantilevers. Only few nanometer cantilever deflection is sufficient due to interferometric sensitivity of the readout. The resonant frequency of the cantilever is tracked with a phase lock loop (PLL) control circuit. The viscosities of liquid samples are obtained through the measurement of the cantilever's frequency change with respect to a reference measurement taken within a liquid of known viscosity. We performed measurements with glycerol solutions at different temperatures and validated the repeatability of the system by comparing with a reference commercial viscometer. Experimental results are compared with the theoretical predictions based on Sader's theory and agreed reasonably well. Afterwards viscosities of different Fetal Bovine Serum and Bovine Serum Albumin mixtures are measured both at 23°C and 37°C, body temperature. Finally the viscosities of human blood plasma samples taken from healthy donors are measured. The proposed method is capable of measuring viscosities from 0.86 cP to 3.02 cP, which covers human blood plasma viscosity range, with a resolution better than 0.04 cP. The sample volume requirement is less than 150 µl and can be reduced significantly with optimized cartridge design. Both the actuation and sensing are carried out remotely, which allows for disposable sensor cartridges.
