Avaliacao da eficacia da estimulacao eletrica nervosa transcutanea sobre a intensidade da dor, volumes pulmonares e forca muscular respiratoria no pos-operatorio de cirurgia abdominal: estudo de caso / Evaluation of TENS effectivens in pain intensity, chest volumes and respiratory muscle force in posoperative abdominal surgery: case report

O procedimento cirurgico do abdome contribui para disfuncoes na musculatura respiratoria, em razao da dor e dos anestesicos utilizados, podendo resultar em complicacoes pulmonares. Este trabalho objetivou verificar a eficacia da Estimulacao Eletrica Nervosa transcutanea (TENS) sobre a intensidade da dor, os volumes pilmonares e a forca muscular respiratoria no pos-operatorio de cirurgia abdominal em paciente do sexo masculino, 55 anos, om doenca pulmonar obstrutiva cronica, submetido a incisao vertical mediana para realizacao de laparotomia exploratoria. Os instrumentos utilizados neste estudo foram escala analogo-visual (EAV), ventilometro OHMEDA, manovacuometro e TENS HTM convencional. Foi realizada avaliacao no pre e pos-operatorio, quando foram obtidos valores de EAV, ventilometria e manovacuometria. No pos-operatorio, os mesmos parametros foram avaliados apos uma hora de aplicacao da TENS. O valor numerico da dor referida variou de 7 para 4, da condicao de pre para pos-aplicacao da TENS. Da condicao pos-operatoria pre-TENS a pos-TENS, o paciente apresentou aumento de 3,5(por cento) do volume corrente (Vc), diminuicao de 9,5(por cento) da frequencia respiratoria (Fr) e de 6,34(por cento) do volume minuto (VM) e incremento de 33(por cento) da pImax e de 100(por cento) da PEmax. A utilizacao da TENS dimunuiu a dor e melhorou os volumes pulmonares e a forca muscular respiratoria no pos-operatorio de cirugia abdominal

Respiratory mechanics after chronic diethylcarbamazine.

This study was performed to evaluate the role of diethylcarbamazine (DEC), the drug of choice for treating Lymphatic Filariasis and Tropical Pulmonary Eosinophilia, on respiratory mechanics of higid rats. Thus, during 30 days two groups of six rats each received intraperitoneally either isotonic saline solution, or 12 mg/kg per day of DEC. Thereafter, they were sedated, anesthetized, paralysed and mechanical ventilation followed. After airway occlusion at end inspiration, respiratory system, pulmonary and chest wall resistive pressures (delta P1,rs, delta P1,L, and delta P1,w, respectively) and viscoelastic/inhomogeneous pressures (delta P2,rs, delta P2,L and delta P2,w, respectively) were determined in each group. Total delta pressures (delta Ptot) were calculated as the sum of delta P1 and delta P2, yielding the values of delta Ptot,rs, delta Ptot,L, and delta Ptot,w, respectively. Respiratory system, lung and chest wall static (Est,rs, Est,L, and Est,w, respectively) and dynamic elastances (Edyn,rs, Edyn,L, and Edyn,w, respectively), and the corresponding delta elastances (calculated as Edyn-Est) were also obtained. DEC therapy significantly decreased delta Ptot,rs, delta P tot,L, delta P2,rs, delta P2,L, Est,ts, Est,L, delta Ers and delta EL, in relation to the respective control values. It can be concluded that DEC decreases respiratory system impedance, being potentially useful for allowing airway dilation at the lung periphery.