The article explores the current issue of medical support for merchant ship crews working in conditions of prolonged professional isolation, limited access to qualified medical care, and specific risk factors of the maritime environment. The author conducts a systematic analysis of modern digital healthcare technologies, such as wearable biometric devices, telemedicine platforms, mobile medical applications, and cloud-based data storage systems, in terms of their applicability for continuous monitoring of seafarers' health during voyages. The paper presents an original methodology for assessing the comprehensive effectiveness of the implementation of digital monitoring systems, based on a multi-criteria weighted matrix, where the components correspond to medical, technical, ergonomic (household), economic, and compliance with standards. A target efficiency threshold of 0.85 has been established, which provides for a 15% reserve for possible technical failures, human factors, and unforeseen circumstances. Based on the analysis, a set of practical recommendations has been formulated for shipping companies and regulatory authorities. The results of the study allow for the optimization of health-saving strategies in the maritime industry, reducing occupational risks, improving the availability of medical care, and minimizing economic losses associated with crew illnesses during voyages. The proposed methodology can be adapted for other industries with similar working conditions.

health monitoring, ship crews, telemedicine, wearable devices, digital healthcare, integrated efficiency, merchant fleet.