## 4 Discussion
### Technologies in Telemedicine  
The constant development of modern technologies is quickly reflected in telemedicine in the form of many new tools and solutions such as artificial intelligence [107; 108; 109; 110], wearable medical devices and sensors [111; 112; 113; 114; 115; 116], health-related Internet of Things (IoT) [117; 118; 119], implantable medical devices operated by telemedicine, augmented reality [120; 121; 122; 123; 124; 125], virtual reality [126; 127; 128; 129] and support medical decision making [130; 108; 131; 132]. Changes in physicians' attitudes toward the use of telemedicine solutions devices lead to changes in medical practice [133; 134]. Altered medical practice leads to medical economy savings by delegating specific medical procedures to the point of care instead of the hospital. The significant influx of data from medical devices related to telemedicine generates a considerable amount of medical data. Vast medical data sets require further research on medical pattern extraction to classify standardized features organized in data storage and related to the separation of ethical and data protection aspects. The development of mobile applications in recent years has increased the health awareness of users and enabled the collection of measurements from surrounding devices; they also act as proxies for powerful online \"cloud\" platforms that support artificial intelligence (AI) and \"big-data\" algorithms. Wearable and personalized solutions are created to support remote reading from miniature, battery-powered devices with built-in intelligent algorithms, sensors and wireless connectivity to provide measurements and results that are quickly available for monitoring, review and analysis. In Poland and worldwide, constant growth trends are observed for telemedicine (hospital and outpatient use) and the eHealth and mHealth market (consumer products) [135; 136; 137; 138; 139]. 'Start-ups' implemented by specialist teams create and deliver global solutions to specific problems in various medical specialties [30; 31; 45; 140; 141; 142]. Telemedicine offers many benefits to patients, physicians and healthcare facilities. During the telemedicine and eHealth conferences, several trends were presented. Thanks to the global reach of telemedicine and its network technologies, telemedicine gives patients access to physicians and allows healthcare facilities to extend services beyond their offices. With a global shortage of service providers, telemedicine can offset service shortages, increase patient throughput and positively impact the lives of millions of new patients in primary and secondary care. Implementing telemedicine can reduce costs, especially as healthcare systems have undergone point and monetary reform. Many countries have developed and implemented policies to reimburse costs and capital expenditures for services. The financial compensation model varies by country, region, state and telemedicine model [47]. Telemedicine currently does not differ from face-to-face medicine in terms of patient satisfaction. Over the past few years, numerous studies have documented a high level of patient satisfaction [137; 143; 144; 145]. The easiest way to obtain the legality of telemedicine services is when there is equal responsibility for using stationary and remote services. In Poland, all telemedicine services are based on legal regulations [75; 89]. However, they remain for cross-border solutions in telemedicine which require further studies. Similarly, the topic of cybersecurity in telemedicine should be discussed separately. Modern cyberattacks exploit applications, networks, operating systems and hardware vulnerabilities. The most common purpose is to access, steal, or change sensitive information. Leakage or tampering with any patient's health can have dramatic consequences (e.g., drug or dose change, life-threatening surgery).