Repercusión hemodinámica del cierre de la fístula arteriovenosa sobre el corazón derecho en trasplantados renales / Hemodynamic impact of arteriovenous fistula closure on the right heart in kidney transplant patients

Introducción: Las complicaciones cardiovasculares constituyen la primera causa de morbilidad y mortalidad en el receptor de trasplante renal. Objetivo: Caracterizar la repercusión de la fístula arteriovenosa sobre variables hemodinámicas del corazón derecho en trasplante renal. Métodos: Estudio prospectivo, longitudinal. Se incluyeron 52 pacientes, evaluados clínica y ecocardiográficamente. Se compararon cinco variables hemodinámicas en el corazón derecho, previos y seis meses posteriores al cierre de la fístula arteriovenosa. Resultados: La edad promedio 46,02 años, 29 masculinos (55,8 por ciento). El diámetro de la aurícula derecha en las fístulas cerradas en la muñeca izquierda 8805; 6 años disminuyó (p=0,044), al igual que en el ventrículo derecho <6 años a nivel del pliegue del codo izquierdo (p=0,004). La presión sistólica de la arteria pulmonar descendió tras el cierre en el codo izquierdo lt;6 años (p=0,002), en las 8805;6 (p=0,05) y en el derecho (p=0,006). La presión media de la arteria pulmonar se redujo en las cerradas en pliegue del codo izquierdo <6 años (p=0,001) y 8805;6 años (p=0,017) al igual que en el derecho (p=0,009). La fracción de eyección del ventrículo derecho se incrementó al cierre en muñeca izquierda ;6 años (p=0,046) y en el codo derecho 8805;6 años (p=0,027). Conclusiones: La permanencia de la fístula arteriovenosa en el receptor de trasplante renal contribuye a la perpetuación y progresión de la disfunción cardiovascular preexistente(AU)

Introduction: Cardiovascular complications are the leading cause of morbidity and mortality in kidney transplant recipients. Objective: To describe the consequence of arteriovenous fistula on hemodynamic variables of the right heart in kidney transplantation. Methods: We conducted a prospective, longitudinal study. Fifty two patients were included, and they were clinically and echocardiographically assessed. Five hemodynamic variables were compared in the right heart, prior to the closure of the arteriovenous fistula and six months after. Results: The average age was 46.02 years, 29 were male (55.8 percent). The diameter decreased in the right atrium in closed fistulas in the left wrist #8805; 6 years (p = 0.044). The same occurred in the right ventricle <6 years at the level of the left elbow crease (p = 0.004). The systolic pressure of the pulmonary artery decreased after closure in the left elbow <6 years (p = 0.002), in ≥6 (p = 0.05) and in the right (p = 0.006). The mean pressure of the pulmonary artery was reduced in those closed in the crease of the left elbow <6 years (p = 0.001) and ≥6 years (p = 0.017) as well as in the right (p = 0.009). The right ventricular ejection fraction increased at closure in the left wrist <6 years (p = 0.046) and in the right elbow ≥6 years (p = 0.027). Conclusions: The permanence of arteriovenous fistula in the kidney transplant recipient contributes to the perpetuation and progression of the pre-existing cardiovascular dysfunction(AU)

Anestesia total intravenosa en cirugía oncológica de mama / Total intravenous anesthesia in breast oncology surgery

Introducción: La anestesia total intravenosa se caracteriza por estabilidad hemodinámica, profundidad anestésica, recuperación rápida y predecible, menor cantidad de medicamentos y menor toxicidad. Objetivo: Describir los resultados de la anestesia total intravenosa en cirugía oncológica de mama. Método: Se realizó un estudio descriptivo, longitudinal en el Hospital Clínico Quirúrgico Hermanos Ameijeiras, entre enero de 2016 a diciembre 2016, en 100 pacientes a las que se les administró anestesia total intravenosa con midazolam y fentanilo para proceder quirúrgico oncológico de mama. En ellas se determinó la repercusión hemodinámica, el nivel de sedación, analgesia, la recuperación y complicaciones. Resultados: La media de la edad de las pacientes fue 58,99 ± 12,5 años. De las pacientes en estudio 92 por ciento no presentó signos clínicos de superficialidad. Solo 21 pacientes presentaron complicaciones. Las variaciones de la tensión arterial fueron las más frecuentes (16 por ciento), seguidas de la bradicardia o taquicardia en solo cuatro casos. De forma inmediata se recuperó 74 por ciento de los casos y 26 por ciento restante lo hizo de manera mediata. El nivel de sedación fue adecuado en 50 por ciento y excesivo en 4 por ciento. Del total de los casos, 99 por ciento experimentaron respuesta analgésica sin dolor. Conclusiones: Los resultados del uso de anestesia total intravenosa fueron buenos, con adecuada respuesta analgésica y escasas complicaciones(AU)

Introduction: Total intravenous anesthesia is characterized by hemodynamic stability, anesthetic depth, rapid and predictable recovery, less medication and less toxicity. Objective: To describe the outcomes of total intravenous anesthesia in breast cancer surgery. Method: A descriptive, longitudinal study was carried out in Hermanos Ameijeiras Clinical-Surgical Hospital, from January 2016 to December 2016, in 100 patients who were administered total intravenous anesthesia with midazolam and fentanyl for breast oncology surgery. The patients were determined hemodynamic repercussion, the level of sedation, analgesia, recovery and complications. Results: The mean age of the patients was 58.99±12.5 years. Among the patients under study, 92 percent did not present clinical signs of superficiality. Only 21 patients presented complications. Variations in blood pressure were the most frequent (16 percent), followed by bradycardia or tachycardia in only four cases. Immediately, 74 percent of the cases were recovered and the remaining 26 percent did so timely. The level of sedation was adequate in 50 percent and excessive in 4 percent. Among the total number of cases, 99 percent experienced analgesic response without pain. Conclusions: The outcomes of total intravenous anesthesia usage were good, with adequate analgesic response and few complications(AU)

Complicaciones hemodinámicas en el posoperatorio inmediato relacionadas con la reposición de volumen intraoperatorio / Hemodynamic complications related to intraoperative volume replacement in the immediate postoperative period

Introducción: la administración de fluidos durante el transoperatorio, tiene como premisa mantener un volumen intravascular adecuado para asegurar un equilibrio hidroelectrolítico y ácido-básico, y optimizar el transporte de oxígeno y la función de los factores de la coagulación. Objetivo: evaluar la relación entre la pauta de administración de fluidos como soluciones de reemplazo en el transoperatorio y la aparición de complicaciones hemodinámicas en el posoperatorio inmediato. Método: se realizó un estudio prospectivo, descriptivo, de corte transversal con una revisión exhaustiva de las historias clínicas a los pacientes que recibieron tratamiento quirúrgico en el Hospital Clínicoquirúrgico "Hermanos Ameijeiras", en el período de enero de 2009 a enero de 2011; y al día siguiente del acto quirúrgico se entrevistaron los anestesiólogos actuantes. Resultados: de una muestra de 42 pacientes, 15 presentaron comportamiento hemodinámico sugerente de demanda de volumen, en las primeras 24 horas de concluida la intervención. La demanda de volumen se relacionó con intervenciones quirúrgicas abdominales y espinales complejas, reposición del volumen con coloides en las pérdidas hemáticas y de volemia en menos del 100 %, y un tiempo quirúrgico mayor de 5 horas. No influyeron los valores de hematocrito, el peso y el por ciento de pérdidas hemáticas. Conclusiones: la estabilidad hemodinámica posoperatoria, en los pacientes a quienes se les realizaron intervenciones con pérdidas hemáticas mayores de 1 000 mL, estuvo influenciada por el porcentaje de sangre perdida y su reposición. Los mejores resultados se obtuvieron cuando la expansión superó las pérdidas y la reposición se realizó con coloides. El tiempo quirúrgico influyó significativamente en la estabilidad hemodinámica.

Introduction: fluid administration during the transoperative period is aimed at maintaining an adequate intravascular volume to ensure appropriate hydroelectrolytic and acid-base balance and optimize oxygen transport and the function of coagulation factors. Objective: evaluate the relationship between the fluid administration regimen based on replacement solutions in the transoperative period and the appearance of hemodynamic complications in the immediate postoperative period. Method: a prospective cross-sectional descriptive study was conducted based on an exhaustive review of the medical records of patients undergoing surgical treatment at Hermanos Ameijeiras Clinical Surgical Hospital from January 2009 to January 2011. Additionally, the anesthesiologists involved were interviewed on the day after each operation. Results: in a sample of 42 patients, 15 showed hemodynamic behavior suggesting volume demand in the 24 hours following surgery. Volume demand was associated with abdominal and complex spinal surgery, colloidal volume replacement in blood losses or volemic losses under 100 %, and a surgical time greater than 5 hours. No influence was exerted by hematocrit values, weight or percentage of blood loss. Conclusions: the postoperative hemodynamic stability of patients undergoing surgical interventions with blood losses above 1 000 mL was influenced by the percentage of blood lost and its replacement. The best results were obtained when the expansion exceeded the losses and when the replacement was conducted with colloids. Surgical time had a significant influence on hemodynamic stability.

Influência dos exercícios aeróbio e resistido sobre perfil hemodinâmico e lipídico em idosas hipertensas / Influence of aerobic exercise and resistance training on hemodynamic and lipid profile in hypertensive elderly

O envelhecimento é um processo caracterizado pela diminuição das funções fisiológicas e de todas as capacidades físicas. O objetivo do presente estudo foi verificar o efeito do exercício aeróbio e resistido sobre parâmetros hemodinâmicos, antropométricos e lipídicos de mulheres idosas hipertensas. Participaram do estudo 25 mulheres no grupo experimental (GE) (74,44 ± 6,3 anos) e 12 mulheres no grupo controle (GC) (75,25 ± 6,8 anos). O GE participou de sessões 60 minutos de exercícios físicos combinados com intensidade moderada que contemplaram alongamentos, exercícios localizados e caminhada, enquanto o GC manteve seus hábitos normais. Ao contrário do GC todas as variáveis analisadas no GE sofreram alterações significativa de (p<0,05) nos três momentos de intervenção, FCrep (85,0 ± 11,4 bpm; 80,1 ± 10,3 bpm; 79,4 ± 9,9 bpm), PAS (157,6 ± 13,9 mmHg; 142,8 ± 10,6 mmHg; 132,8 ± 8,4 mmHg), PAD (92,4 ± 7,2 mmHg; 88,0 ± 5,0 mmHg; 82,0 ± 4,1 mmHg), glicemia (110,2 ± 16,4 ml/dl; 101,3 ± 12,8 ml/dl; 95,3 ± 10,4 ml/dl), triglicerídeos (205,6 ± 37,7 ml/dl; 184,2 ± 32,5 ml/dl; 170,4 ± 29,2 ml/dl), colesterol total (223,2 ± 27,8 ml/dl; 205,3 ± 24,1 ml/dl; 196,4 ± 22,3 ml/dl), HDL (43,1 ± 1,5 ml/dl; 44,3 ± 1,5 ml/dl; 44,8 ± 1,4 ml/dl), VLDL (28,3 ± 3,2 ml/dl; 26,2 ± 2,5 ml/dl; 25,4 ± 2,2 ml/dl), LDL (151,8 ± 26,3 ml/dl; 134,9 ± 23,3 ml/dl; 126,2 ± 21,2 ml/dl). Concluiu-se que os exercícios físicos combinados foram eficientes nas melhorias das variáveis hemodinâmicas, antropométricas e lipídicas em idosas hipertensas.

Aging is a process characterized by decreased function physiological and all physical abilities. The purpose of this study was to assess the effect of aerobic exercise and resistance training on hemodynamic parameters, anthropometric and lipid in elderly hypertensive women. Participated in this study 25 women in experimental group (GE) (74,44 ± 6,3 years) and 12 women in control group (CG) (75,25 ± 6,8 years). GE participated in physical exercise sessions that included the combined practice of stretching, localized exercises and walking while CG remained normal daily habits. Unlike the CG all variables in the EG had significant changes in three moments of intervention, HRrest (85,0 ± 11,4 bpm; 80,1 ± 10,3 bpm; 79,4 ± 9,9 bpm), SBP (157,6 ± 13,9 mmHg; 142,8 ± 10,6 mmHg; 132,8 ± 8,4 mmHg), DBP (92,4 ± 7,2 mmHg; 88,0 ± 5,0 mmHg; 82,0 ± 4,1 mmHg), glucose (110,2 ± 16,4 ml/dl; 101,3 ± 12,8 ml/dl; 95,3 ± 10,4 ml/dl), triglycerides (205,6 ± 37,7 ml/dl; 184,2 ± 32,5 ml/dl; 170,4 ± 29,2 ml/dl), total cholesterol (223,2 ± 27,8 ml/dl; 205,3 ± 24,1 ml/dl; 196,4 ± 22,3 ml/dl), HDL (43,1 ± 1,5 ml/dl; 44,3 ± 1,5 ml/dl; 44,8 ± 1,4 ml/dl), VLDL (28,3 ± 3,2 ml/dl; 26,2 ± 2,5 ml/dl; 25,4 ± 2,2 ml/dl), LDL (151,8 ± 26,3 ml/dl; 134,9 ± 23,3 ml/dl; 126,2 ± 21,2 ml/dl). We concluded that exercise combination were effective in improvement of hemodynamic, anthropometric and lipid levels in elderly hypertensive.

Extração de terceiros molares retidos sob anestesia local. Avaliação de ansiedade, dor, alterações hemodinâmicas e respiratórias / Extraction of retained third molar teeth under local anesthesia. Evaluation of anxiety, pain, hemodynamic and respiratory alterations

Trata-se de estudo corte transversal, descritivo com componente analítico, com o objetivo de avaliar a ansiedade dos pacientes no período que precede o procedimento, as alterações hemodinâmicas, respiratórias e dor no intra-operatório em pacientes submetidos à extração de terceiros molares retidos sob anestesia local. Foram incluídos no estudo 42 sujeitos do sexo masculino, hígidos, com idade compreendida entre 18 e 34 anos. A anestesia foi feita com cloridrato de lidocaína a 2% com adrenalina 1:50.000, na dose que variou de 72 a 144mg. Com auxilio de monitor multiparamétrico não-invasivo avaliaram-se os parâmetros: pressão arterial média, freqüência cardíaca, saturação periférica de O2 e frequência respiratória; o grau de ansiedade (escala de ansiedade para cirurgia odontológica) e dor (escala analógica visual). A análise estatística foi realizada por meio dos testes t de Student e Wilcoxon pareado. O nível de significância foi fixado em 5%. O tempo médio máximo de cirurgia foi 60 minutos, período considerado para análise dos resultados. Neste estudo, vinte pacientes apresentavam algum grau de ansiedade. Dor intensa foi referida por sete pacientes nos momentos da osteotomia, odontosecção e luxação que necessitaram de complementação com anestésico local. A análise individual dos parâmetros hemodinâmicos e respiratórios mostrou alterações consideradas clinicamente significativas. Os resultados deste estudo permitem concluir que alterações hemodinâmicas e respiratórias podem ocorrer durante extrações de terceiros molares retidos, especialmente em pacientes ansiosos e com dor. A monitorização é importante na detecção e conseqüentemente prevenção dessas intercorrências, sendo particularmente útil em pacientes em que essas repercussões devam ser evitadas.

A transversal, descriptive study with an analytical component was conducted, aimed at evaluating anxiety during the period preceding the procedure, as well as hemodynamic and respiratory alterations and pain during the intraoperative period in patients undergoing the extraction of retained third molars under local anesthesia. Forty-two healthy male subjects, ranging in age from 18 to 34 years were included in the study. Anesthesia was performed with lidocaine hydrochloride 2% with epinephrine 1:50.000, at a dose ranging from 72 to 144mg. A non-invasive multiparametric monitor was used to monitor the following parameters: mean arterial blood pressure, heart rate, peripheral O2 saturation, respiratory rate; level of anxiety (anxiety scale for dental surgery) and pain (visual analog scale). Statistical analysis was performed with a paired Student’s t and Wilcoxon’s test. The significance level was set at 5%. In this study, twenty patients had some level of anxiety. Severe pain was reported in seven patients who required supplementation with local anesthesia during osteotomy, tooth sectioning and luxation. Individual analysis of hemodynamic and respiratory parameters showed alterations that were considered significant. The results of this study enabled us to conclude that hemodynamic and respiratory alterations may occur during the extraction of retained third molars. Monitoring is important for the detection and thus prevention of these complications. Furthermore, it is particularly useful in patients in whom these repercussions must be avoided.

Cambios hemodinamicos precoces en pacientes con resistencia insulínica

Objetivos: Determinar cambios hemodinámicos, estructurales y funcionales de pacientes con resistencia insulínica y sin síndrome metabólico. Métodos: Se seleccionaron diez pacientes de ambos sexos con diagnóstico de resistencia insulínica. Diez pacientes sanos ajustados por edad, sexo e índice de masa corporal (IMC) constituyeron el grupo control. El IMC y la presión arterial fueron registrados. Los pacientes fueron sometidos a una prueba de tolerancia oral a la glucosa. El índice de HOMAIR fue utilizado para el cálculo de la resistencia insulínica (HOMAIR: valor ≥ 2,5). La concentración de norepinefrina plasmática (NE) se cuantifico por HPLC. Los parámetros hemodinámicos, estructurales y funcionales del corazón fueron evaluados mediante el ecocardiograma bidimensional, eco doppler pulsado y doppler pulsado tisular. Resultados: La glucemia, la insulina basal y post-carga y el HOMAIR fueron significativamente más altos en el grupo de pacientes. El índice cardiaco resultó significativamente más bajo en el grupo de pacientes. La concentración de NE se correlacionó en forma positiva y estadísticamente significativa con las concentraciones de insulina basal y post-carga. La presión arterial diastólica se correlacionó en forma negativa y estadísticamente significativa con la insulina post-carga solo en el grupo control. El volumen diastólico final del ventrículo izquierdo se correlacionó en forma positiva y estadísticamente significativa con la insulina y el HOMAIR en el grupo de pacientes pero no en el grupo control. Conclusiones: Los niveles de insulina plasmática podrían desempeñar un papel muy importante en la modulación de los niveles plasmáticos de NE en pacientes con resistencia insulínica. La sobreactivación del sistema nervioso simpático podría condicionar anormalidades en el volumen sistólico final y el índice cardiaco, los cuales constituirían los cambios hemodinámicos adaptativos precoces en pacientes con resistencia insulínica sin síndrome metabólico.

Objective: To determine the haemodynamic, structural and functional changes in insulin-resistant subjects Methods: Ten insulin-resistant subjects were studied. Asymptomatic subjects were studied as a control group. Blood pressure and body mass index were registered. Standard oral glucose tolerance test was performed. Plasma glucose and insulin were measured at baseline and 2 hours post glucose load. Insulin resistance index HOMAIR was calculated. Insulin resistance was considered if HOMAIR value was ≥ 2.5. Plasma norepinephrine (NE) was measured by HPLC. In order to examine the mass and cardiac function, bi-dimensional echocardiogram and imaging doppler tissue were performed. Results: Plasma glucose, insulin and HOMAIR were significantly higher in insulin-resistant subjects. There was no significant difference in plasma NE concentration between groups. The cardiac index was the only haemodynamic variable found to be significantly lowers in insulin resistant subjects. A significant positive correlation between NE with fasting and post load insulin concentration was observed. In control group, a significant negative correlation between diastolic blood pressure and post load insulin concentration was observed. The left ventricle systolic end-volume was positively and significantly correlated with insulin and HOMAIR in insulin-resistant subjects, but not in controls. Conclusions: Insulin levels may play role in modulating plasma NE levels, particularly in insulin-resistant subjects. The increased sympathetic activity in these subjects might lead to an abnormality in the left ventricle systolic end-volume and cardiac index, which might be the earlier adaptative haemodynamic changes due to cardiac post-load.