RESUMO
Background: Pressure ulcers are a public health problem given the impact that they have on morbidity, mortality and the quality of life and participation of patients who suffer from them. Therefore, the main objective of this study was to evaluate the presence of differences in the radiofrequency parameters applied to complex pressure ulcers throughout the sessions and between the right and left leg. As a secondary objective, the subjective perceptions of the effects of the treatment by both the patients and the practitioner were analyzed. Methods: We performed a secondary analysis of data from a prospective study involving 36 patients from the Hospital de Guadarrama in Madrid, Spain, who presented ulcers in the lower limbs. Ten treatment sessions of radiofrequency were administered with a frequency of one session/week, collecting the data referring to the variables in each of the sessions. The main outcome variables were the radiofrequency parameters automatically adjusted in each session and that referred to the frequency (Hz), maximum and average power (W), absorbed energy by the ulcer (J/cm2) and temperature (°C) reached by the tissues. On the other hand, the subjective perception of the results was evaluated using the Global Response Assessment (GRA), a Likert-type scale that scores the treatment results from 1 (significantly worse) to 5 (significantly better). Likewise, the satisfaction of both the patients and the professional were evaluated using a 10-point numerical scale. Results: The ANOVA test showed significant differences (p < 0.05) throughout the sessions except in patient satisfaction. The ANOVA test showed significant differences (p < 0.05) between both legs and over time in all parameters except for frequency. The presence of significant differences (p < 0.05) was observed over time between legs compared to the initial values in the absorbed energy and in temperature, with higher final values in the absorbed energy in the left leg compared to the right (26.31 ± 3.75 W vs. 17.36 ± 5.66 W) and a moderate effect on both (R2 = 0.471 and 0.492, respectively). The near absence of changes in the satisfaction of both the patients and the professional was observed, while the score in the GRA decreased continuously throughout the sessions. Conclusions: Radiofrequency parameters are indicative of an improved clinical response to ulcers. In addition, higher radiofrequency exposure increases healing capacity. However, the subjective perception of treatment outcomes worsened, which may be related to the chronic nature of the ulcers, leading to patients' expectations not being met.
Assuntos
Lesão por Pressão , Humanos , Lesão por Pressão/terapia , Úlcera/terapia , Qualidade de Vida , Estudos Prospectivos , Resultado do TratamentoRESUMO
Las heridas crónicas son un problema de salud significativo. Parece que la estimulación eléctrica produce una reducción significativamente mayor en el área de superficie y cicatrización más completa de las úlceras de difícil cicatrización y de evolución tórpida en comparación con la terapia habitual, sin vendaje compresivo. OBJETIVOS: Evaluar el efecto que la radiofrecuencia a baja intensidad y con efectos no térmicos tiene sobre los diferentes componentes del mecanismo del proceso de cicatrización. METODOLOGÍA: Para el tratamiento, se utilizó un dispositivo de tecarterapia (CAPENERGY C200). Se aplicaron un total de 10 sesiones de radiofrecuencia con una periodicidad de 1 vez a la semana con una potencia del 60% y una frecuencia de 1,2 MHz durante 30 minutos. RESULTADOS: La presencia de edema, observada en todos los pacientes en la región de la extremidad inferior, desapareció en 30 de los 36 pacientes (Wilcoxon p = 0,004). Este resultado fue confirmado por ultrasonido. El edema celular subcutáneo medio disminuyó en 1,73 cm (Friedman p = 0,000). La temperatura del área tomada antes y después del tratamiento se incrementó en un promedio de 1,4 °C. Estas diferencias son estadísticamente significativas (Wilcoxon p = 0,000). CONCLUSIONES: La radiofrecuencia parece que puede reducir el largo proceso de cicatrización de las lesiones de evolución tórpida, y nos encontramos con unas diferencias significativas a lo largo del tratamiento y con una reducción progresiva en las mediciones de las lesiones y mayor rapidez en la cicatrización de las heridas complejas
Chronic wounds are a significant health problem. Electrical stimulation seems to produce a significantly greater reduction in surface area and more complete healing of difficult-to-heal and poorly healing ulcers compared to standard therapy without compressive bandaging. OBJECTIVES: To evaluate the effect that radiofrequency at low intensity and with non-thermal effects has on the different components of the mechanism of the healing process. METHODOLOGY: A tecartherapy device (CAPENERGY C200) was used for the treatment. A total of 10 radiofrequency sessions were applied once a week with a power of 60% and a frequency of 1.2 MHz for 30 minutes. RESULTS: The presence of oedema, observed in all patients in the lower extremity region, disappeared in 30 of the 36 patients (Wilcoxon p = 0.004). This result was confirmed by ultrasound. The mean subcutaneous cellular oedema decreased by 1.73 cm (Friedman p = 0.000). The temperature of the area taken before and after treatment increased by an average of °C. These differences are statistically significant (Wilcoxon p = 0.000). CONCLUSIONS: Radiofrequency appears to be able to reduce the long healing process of torpidly evolving lesions, and we found significant differences throughout the treatment and a progressive reduction in lesion measurements and faster healing of complex wounds
