Cardiovascular diseases (CVDs) are the leading cause of global morbidity and mortality, underscoring the necessity of long-term secondary prevention strategies such as comprehensive cardiac rehabilitation (CR). CR is a clinically validated, cost-effective intervention that mitigates cardiovascular risk, improves functional capacity, and enhances patient prognosis. Emerging evidence emphasizes the pivotal role of mitochondrial bioenergetics in mediating the systemic benefits of exercise-based CR, particularly through mechanisms involving mitochondrial biogenesis, dynamics, and mitophagy. This review synthesizes molecular insights with clinical guidelines by evaluating four national CR guidelines—from Poland, France, the United States, and Portugal—alongside a comprehensive recommendation issued by the European Society of Cardiology (ESC). The analysis focused on key components of CR, including exercise modalities (aerobic, resistance, and high-intensity interval training) and prescription parameters such as frequency, intensity, and duration. Only guidelines fulfilling predefined inclusion criteria with complete and detailed data were included; documents lacking essential information were excluded from the final synthesis.

Acute transverse myelitis (ATM) is a rare, immune-mediated disorder of the spinal cord characterized by sensory, motor, and autonomic dysfunction. Although the human papillomavirus (HPV) vaccine is widely regarded as safe, isolated reports have suggested a potential temporal association with autoimmune neurological events, including ATM. We present a case of a 21-year-old woman who developed ATM two weeks following administration of the first dose of the HPV vaccine (Cervarix). The clinical presentation included rapid-onset paraparesis, sensory deficits, and sphincter dysfunction. An MRI revealed a T2-hyperintense lesion at the Th10–Th12 level. A cerebrospinal fluid analysis showed elevated protein levels. The patient underwent corticosteroid therapy, plasmapheresis, and IVIG, followed by a comprehensive, individualized rehabilitation program. This included balance and stability training, Redcord-based neuromuscular activation, electrostimulation, and pelvic floor therapy. Although no causal link between HPV vaccination and ATM has been established, this case emphasizes the importance of considering post-vaccinal autoimmune phenomena. More importantly, it illustrates the critical role of early, targeted rehabilitation—particularly pelvic floor re-education and neuromodulation—in improving outcomes in patients with significant motor and autonomic deficits.

We report the case of a 55-year-old man with multi-symptomatic transverse myelitis after vaccination against coronavirus disease 2019 (COVID-19). The patient was diagnosed based on the course of the disease and the results of imaging and laboratory tests. We excluded other most probable causes of the disease. The quick start of diagnosis allowed for early treatment with intravenous steroids and then plasmapheresis and the implementation of modern rehabilitation methods using biofeedback platforms, among others, and an exoskeleton. The patient returned to work, but the rehabilitation process continues to this day due to persistent symptoms that impair the patient’s quality of life.