Direct home BP telemonitoring can eliminate the not always reliable BP values reported by the patient due to intentional or unintentional transcription errors. The presented telemedicine system transfers data directly, without any patient interaction, from a BP measuring device (BPMD) via a Bluetooth interface and sends them to a telemedicine server. Measurements can be sent either directly using a Intel Compute Stick mini-PC or indirectly via a mobile phone application that uses Apple HealthKit as an intermediate storage. The web logbook is based on ESH standardised logbook transferred to Excel. This enables an easy calculation of the average BP across several days. A chart and table with a daytime BP profile partially mimics 24-h ambulatory BP monitoring (ABPM). The patient’s logbook is accessible to both the patient and the physician via a web application. It can be also generated as a pdf and sent to the physician by email, alternatively it can be printed. Moreover, the proposed system offers direct information about the detection of an irregular heartbeat rhythm during a BP measurement that can be easily distinguished in the logbook. Using the latest HL7 standard, the FHIR, the measurements can be directly sent to a hospital information system. This may help in the early detection of asymptomatic atrial fibrillation and in the prevention of its serious complications.
Po několik desítek let je zavedení transvenózní trvalé kardiostimulace považováno za zlatý standard léčby nemocných s bradyarytmiemi. Nicméně samy transvenózní elektrody mohou být zdrojem komplikací stejně jako subkutánní uložení vlastního kardiostimulátoru. Shrnujeme současný pohled na nově zaváděnou léčbu pomocí bezdrátových kardiostimulátorů implantovaných zcela intrakardiálně, včetně analýzy prvního použití v humánní medicíně u nemocných indikovaných k jednodutinové komorové stimulaci. S využitím transfemorálního přístupu se stimulační systém implantuje do oblasti apikoseptální části pravé komory srdeční. Popisujeme technické a klinické aspekty nově zaváděné technologie. Dva rozdílné stimulační systémy pro kompletně bezdrátovou kardiostimulaci jsou v současné době implantovány nemocným. Získaná data prokazují velmi stabilní elektrické parametry implantované technologie (stimulační práh, snímání elektrického potenciálu a stimulační odpor) nebo dokonce jejich progresivní zlepšení v době sledování po implantaci. Diskutujeme také potenciální přínos pro budoucnost trvalé kardiostimulace; shrnujeme, že doposud získaná data přesvědčivě prokazují velmi dobré parametry nově zaváděné bezdrátově kardiostimulace.
For several decades, the traditional transvenous approach to permanent cardiac pacing has been accepted as the gold standard approach to the treatment of patients with bradycardias. However, it can be associated with significant acute and chronic complications related partly to either the insertion of the transvenous lead or subcutaneous placement of the pacemaker device. We summarise the current results of novel self‑contained leadless cardiac pacemakers in the first‑in‑man and subsequent series of feasibility studies in patients indicated for ventricular rate‑responsive pacing (VVI). Using a femoral venous approach, the device is implanted in the right ventricular apical septum region. We describe the technical and clinical characterisation of this innovative technology. Two different systems of leadless pacemakers are currently implanted in patients. Up to now, the electrical parameters, such as pacing thresholds, sensing parameters, and pacing impedances, either improved or remained stable within the accepted range. We also discuss the potential benefit for the future of permanent cardiac stimulation, but in summary, all available data demonstrate the feasibility of leadless cardiac pacing.
- Keywords
- trvalá kardiostimulace, Nanostim LCP, Micra TPS, bezdrátový kardiostimulátor,
- MeSH
- Wireless Technology * instrumentation MeSH
- Equipment Safety MeSH
- Equipment Design MeSH
- Endocardium MeSH
- Cardiac Pacing, Artificial * history methods trends MeSH
- Pacemaker, Artificial MeSH
- Humans MeSH
- Micro-Electrical-Mechanical Systems * instrumentation MeSH
- Miniaturization MeSH
- Arrhythmias, Cardiac therapy MeSH
- Ultrasonography MeSH
- Ultrasonics MeSH
- Check Tag
- Humans MeSH
A non-invasive solution for monitoring of the activity and dehydration of organisms is proposed in the work. For this purpose, a wireless standalone chemical sensor platform using two separate measurement techniques has been developed. The first approach for activity monitoring is based on humidity measurement. Our solution uses new humidity sensor based on a nanostructured TiO2 surface for sweat rate monitoring. The second technique is based on monitoring of potassium concentration in urine. High level of potassium concentration denotes clear occurrence of dehydration. Furthermore, a Wireless Body Area Network (WBAN) was developed for this sensor platform to manage data transfer among devices and the internet. The WBAN coordinator controls the sensor devices and collects and stores the measured data. The collected data is particular to individuals and can be shared with physicians, emergency systems or athletes' coaches. Long-time monitoring of activity and potassium concentration in urine can help maintain the appropriate water intake of elderly people or athletes and to send warning signals in the case of near dehydration. The created sensor system was calibrated and tested in laboratory and real conditions as well. The measurement results are discussed.
- MeSH
- Wireless Technology instrumentation MeSH
- Dehydration diagnosis MeSH
- Equipment Design MeSH
- X-Ray Diffraction MeSH
- Electrodes MeSH
- Calibration MeSH
- Humans MeSH
- Monitoring, Physiologic instrumentation MeSH
- Nanostructures ultrastructure MeSH
- Computer Communication Networks instrumentation MeSH
- Titanium chemistry MeSH
- Humidity MeSH
- Check Tag
- Humans MeSH
- Male MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
This work is focused on problematic of biopotential signals measurements (EXG) using powerful SMART sensor system, composed of portable units, intended for in-time wireless measurement and evaluation of electrical activity, produced by skeletal muscles, human heart or brain. Here, we discuss very precise measurement features, which characterize this device (high gain, low noise, wireless data transfer, multi-probe measuring), some special features as low voltage and ultra-low power consumption were reached by application of the described amplifier in order to achieve its longer performance for daily use. It brings a lot of advantages to biomedical electronics and medical care. In order to optimize the performance of novel proposed smart biomedical instrument in our experimental part we have focused on measurement of surface electromyography (sEMG) signal to force ratio. These sEMG signals can illuminate our understanding of how the brain controls muscles to generate force and produce movement and can be used in such applications like as training of athletes, controlling robots, monitoring the physical capabilities of patients with motor disorders etc.
- MeSH
- Wireless Technology * instrumentation MeSH
- Electrodes MeSH
- Electromyography * instrumentation MeSH
- Isometric Contraction physiology MeSH
- Humans MeSH
- Signal Processing, Computer-Assisted instrumentation MeSH
- Muscle Contraction * physiology MeSH
- Muscle Strength physiology MeSH
- Muscle Fatigue physiology MeSH
- Check Tag
- Humans MeSH
- Publication type
- Research Support, Non-U.S. Gov't MeSH
- MeSH
- Accelerometry * methods instrumentation MeSH
- Wireless Technology instrumentation MeSH
- Web Browser MeSH
- Humans MeSH
- Mobile Applications MeSH
- Computer Systems MeSH
- Motor Activity MeSH
- Data Collection instrumentation MeSH
- Information Dissemination methods MeSH
- Check Tag
- Humans MeSH
- Publication type
- Research Support, Non-U.S. Gov't MeSH
- MeSH
- Monitoring, Ambulatory * instrumentation MeSH
- Wireless Technology * instrumentation MeSH
- Biomedical Technology instrumentation MeSH
- Equipment Design MeSH
- Diagnosis, Computer-Assisted instrumentation MeSH
- Monitoring, Physiologic instrumentation MeSH
- Arrhythmias, Cardiac * diagnosis MeSH
- Publication type
- News MeSH
