[Efficacy of a dynamic orthosis on the upper limbs in the chronic phase of strokes. A longitudinal study]. / Eficacia de la ortesis dinamica del miembro superior en la fase cronica del ictus. Estudio longitudinal.

AIMS: Stroke is the most important medical condition leading to permanent disability in adults. The aim of this study is to evaluate the efficacy of dynamic orthoses in the rehabilitation of the upper limbs in patients who have had a stroke. PATIENTS AND METHODS: We conducted a longitudinal case-control study. The sample used in the study consisted of patients from rehabilitation centres who presented hemiparesis secondary to an ischaemic or haemorrhagic stroke. The patients were randomly distributed into a study group, whose members received a dynamic orthosis on an upper limb for a six-month period, and a control group. Appraisals were performed pre- and post-treatment with the orthosis with Fugl-Meyer Assessment Scale and with Wolf Motor Function to measure their command over body functions and activities. Differences between pre- and post-test were compared using ANCOVA and Student's t. RESULTS: The sample included 40 patients (65% males) who presented chronic hemiparesis secondary to ischaemic (n = 28) or haemorrhagic stroke (n = 12), with a mean age of 58.43 ± 8.67 years. After the six-month follow-up, improved motor function was observed in both groups, according to both scales. The use of a dynamic orthosis was associated with a tendency towards improved strength in the upper limb. CONCLUSIONS: Rehabilitation following a stroke improves strength and body activities in the upper limb. The use of a dynamic orthosis can further improve the strength in this limb, but additional research is needed to confirm our results.

TITLE: Eficacia de la ortesis dinamica del miembro superior en la fase cronica del ictus. Estudio longitudinal.Objetivo. El ictus es la condicion medica mas importante que origina discapacidad permanente en el adulto. El objetivo es valorar la eficacia de ortesis dinamicas en la rehabilitacion del miembro superior en pacientes que han presentado un ictus. Pacientes y metodos. Estudio longitudinal de casos y controles. Se incluyo una muestra de pacientes procedentes de centros de rehabilitacion que presentaban hemiparesia secundaria a ictus isquemico o hemorragico. De forma aleatoria, los pacientes fueron distribuidos en un grupo de estudio, cuyos miembros recibieron una ortesis dinamica en el miembro superior durante seis meses, y un grupo control. Se realizaron valoraciones pre y postratamiento con la ortesis con la Fugl-Meyer Assessment Scale y con la Wolf Motor Function para medir los dominios de las funciones y actividades corporales. Se compararon las diferencias entre pre y postest usando ANCOVA y t de Student. Resultados. Se incluyo a 40 pacientes (65% hombres) que presentaban una hemiparesia cronica secundaria a ictus isquemico (n = 28) o hemorragico (n = 12), con una edad media de 58,43 ± 8,67 años. Tras el seguimiento de seis meses, se observo una mejoria en ambos grupos en la funcion motora segun ambas escalas. El uso de la ortesis dinamica se asocio a una tendencia hacia la mejoria en la fuerza de la extremidad superior. Conclusiones. La rehabilitacion tras el ictus mejora la fuerza y las actividades corporales en el miembro superior. El uso de una ortesis dinamica puede adicionalmente mejorar la fuerza en este miembro, pero se necesitan mas estudios para confirmar nuestros resultados.

Effect of preoperative oral pravastatin reload in systemic inflammatory response and myocardial damage after coronary artery bypass grafting. A pilot double-blind placebo-controlled study.

AIM: Statins exert pleiotropic effects that result in cardioprotective and antiinflammatory properties. There is a lack of information about the effect of preoperative reloading statin administration in surgical coronary patients regarding myocardial protection, systemic inflammatory response (SIR) attenuation and nitric oxide (NO) metabolism. METHODS: Thirty consecutive dyslipidemic patients under chronic treatment with statins were randomized to orally receive pravastatin 80 mg (N.=10), 40 mg (N.=10) or placebo (N.=10) two hours before anesthetic induction for non-emergent on-pump coronary artery bypass grafting (CABG) procedures. Perioperative peripheral venous and intraoperative CS blood samples were collected for determination of drug-related adverse effects, NO metabolism and both myocardial damage and SIR biomarkers. RESULTS: Pravastatin reloading resulted in a significant and dose-related intense attenuation of SIR, but no differences in cardiac damage biomarker levels were demonstrated. NO release and inducible nitric oxide synthase expression was significantly reduced in both treatment groups. Highest pravastatin doses significantly increased systemic creatine phosphokinase (CPK) concentration compared with intermediate doses but no other adverse effects were observed. CONCLUSION: Oral pravastatin reloading before non-emergent CABG significantly attenuates postoperative SIR and systemic NO/iNOS concentrations with no effect in perioperative myocardial damage. Highest pravastatin doses increase CPK levels and must be avoided in susceptible patients.

Implicaciones del uso de órtesis dinámicas en la mejora de la calidad de vida de los pacientes con ictus / Implications of using dynamic orthoses in the improvement of the quality of life for patients with stroke

Objetivo: Estudiar la eficacia de las ortésis dinámicas en la mejora funcional y calidad de vida en personas con discapacidad. Material y método: Se realizó un estudio de 40 pacientes con daño cerebral adquirido por diversos motivos, principalmente por ictus. Tras una primera valoración se confeccionaron ortésis dinámicas a medida. La utilización de las mismas se estableció en un periodo de tres meses con uso diurno. Tras completar el tratamiento se procedió a una segunda evaluación. Se utilizó una metodología que contempla grupo control y grupo experimental. Las escalas utilizadas fueron la Fugl-Meyer Assessment Scale y la escala Wolf Motor Function. El tiempo medio por valoración y usuario fue aproximadamente de una hora. Resultados: Tras la valoración una vez finalizado el tratamiento con órtesis, se encontraron diferencias significativas en todos los sujetos independientemente de que pertenecieran al grupo control o al grupo experimental, aunque no se apreciaron diferencias significativas entre los grupos, registrándose mejorías en ambos. Conclusión: El tratamiento con órtesis dinámicas en personas que han sufrido daño cerebral mejora los síntomas de éstas. Sin embargo, es difícil precisar hasta qué punto, la mejoría es debida a la utilización de las órtesis o a la evolución propia de la enfermedad (AU)

Objective: To study the effectiveness of dynamic orthoses on functional improvement and quality of life of people with disabilities. Material and method: We carried out a study with 40 acquired brain injury patients. The injury was due to various reasons, mainly to stroke. After an initial assessment, custom-fitted dynamic orthoses were produced for each patient. We set the use of it for a period of three months for daytime wear. After completing treatment we proceeded to a second assesment. We used a methodology that considers control and experimental group. The scales used were the Fugl -Meyer Assessment Scale and the Wolf Motor Function scale. The average time for assessment for each user is approximately one hour. Results: In the assessment after treatment with orthoses, significant differences in all subjects regardless of whether they belonged to the control group or the experimental group were found. Although, no significant differences between groups were appreciated, finding improvements in both of them. Conclusion: Treatment with dynamic orthoses in people that have suffered brain damage improves symptoms of it. However, it is difficult to determine whether the improvement is due to the use of orthoses or to the evolution of the disease (AU)

[Clinical results of double versus single mammary artery myocardiac revascularization: 15 years of follow-up]. / Resultados clínicos de la revascularización miocárdica con doble arteria mamaria frente a única: 15 años de seguimiento.

INTRODUCTION: Use of the left internal mammary artery to bypass the left anterior descending coronary artery reduces cardiac events and increases survival. However, there is some controversy as to the benefits of using both mammary arteries. OBJECTIVES: To assess the long-term outcome of the use of both mammary arteries in comparison with the use of only one. PATIENTS AND METHOD: A retrospective cohort study with a mean follow-up of 9.0 +/- 4.2 years was performed including 108 patients consecutively revascularized using both mammary arteries (II) and 108 patients randomly chosen in whom one mammary artery (I) was used for this purpose. RESULTS: Both groups were similar. There were no differences between the groups in operative morbidity or mortality. The survival at 10 years was similar (II: 84.61 +/- 4%; I: 85.18 +/- 3.8%), whereas recurrence of angina (II: 29.63 +/- 5.3%; I: 47.55 +/- 5.6%) (p = 0.012), the requirement for percutaneous angioplasty (II: 3.98 +/- 2%; I: 12.99 +/- 4.1%) (p = 0.009) and cardiologic events (II: 33.48 +/- 5.5%; I: 48.48 +/- 5.5%)(p = 0.022) were all lower in the group in which both mammary arteries were used. In the multivariate analysis, the use of both mammary arteries was an independent protective factor against angina recurrence (RR = 0.55), angioplasty (RR = 0.18) and cardiologic event (RR = 0.60). CONCLUSIONS: The use of both mammary arteries for revascularization does not increase operative morbidity. Since this procedure acts as an independent factor against angina recurrence, angioplasty and cardiologic event

[Guidelines of the Spanish Society of Cardiology on valve heart disease]. / Guías de práctica clínica de la Sociedad Española de Cardiología en valvulopatías.

Valvular heart diseases, which continue to be a major cause of morbidity and mortality world wide, have undergone radical changes since the first valve prostheses were implanted 40 years ago. These changes have been the result of both scientific progress and improved standard of living in developed countries. The availability of penicillin to treat streptococcal pharyngitis and less crowded living conditions have now made rheumatic fever uncommon in these countries. However, other forms of valve impairment have appeared over the past several years. The etiology of some of these valvular diseases remains obscure (e. g. myxomatous mitral valve); others, such as the senile type of calcific aortic valve stenosis, seem to be the price to be paid for the extension of life expectancy. With regard to diagnosis, echocardiography has constituted a formidable tool for visualizing anatomic valve changes, interpreting complex hemodynamic derangements, and evaluating repercussion on the left ventricle. In addition, the iteration of this non-invasive examination has allowed a much better understanding of the natural history of non-severe valvular disease and therefore of the precise timing for surgical intervention, without awaiting, in most cases, the appearance of advanced symptomatology. This has also been possible because of the great advances in cardiac surgery which can be summarised as: a) the improvement in extracorporeal circulation and myocardial preservation techniques; b) the greatly improved biologic and mechanic valve substitutes; c) the introduction of imaginative mitral valve repair procedures, and d) the use of intraoperative transesophageal echocardiography to assess the adequacy of valve repair. At the same time, percutaneous catheter balloon valvuloplasty has emerged as a valid alternative to mitral surgical commissurotomy for mitral stenosis. All these changes, and many more that can not be described in this brief summary, make a review of the management of patients with valve heart disease appropriate.

[Complex implantation of an automatic defibrillator-cardioverter through a left superior vena cava]. / Implantación compleja de desfibrilador-cardioversor automático a través de una vena cava superior izquierda.

We describe the case of a 19-year-old girl with a left superior vena cava and a surgically corrected complete atrioventricular canal defect. After an inhospital sudden death an automatic defibrillator-cardioverter was implanted through her left superior vena cava. During the postoperative course, multiple inappropriate discharges caused by myopotential oversensing indicated the relocation of the electrode and, finally, insertion of two epicardial leads by a left submammarian thoracotomy approach, produced an optimal result.

Iatrogenic mammary arteriovenous fistula caused by sternal wire.

Internal mammary arteriovenous fistulas are a rare complication of sternotomy. We present a case of a 64-year-old woman with a poststernotomy fistula between the left mammary vein and artery with formation of a pseudoaneurysm with subcutaneous extension. We describe the different imaging techniques that led to the diagnosis and the resolution of the fistula via endovascular embolization.

[Reoperations of myocardial revascularization]. / Reoperaciones de revascularización miocárdica.

UNLABELLED: Coronary by-pass grafting is a well established procedure for ameliorating ischemic coronary disease. From time to time it is necessary to re-operate these patients. The objective of our paper is to present our experience in this field. Retrospective analysis of 128 patients operated on between February 1978 and November 1996, has been analyzed. The mean age was 57.4 +/- 0.7 years. 77.2 +/- 5 months elapsed between operations. Stable angina (20.4%) or unstable angina (76.3%), myocardial infarction (48%) and congestive heart failure (17%) were the predominant clinical manifestations. RESULTS: Hospital mortality was 10.9% (14 patients) and in the follow-up there were 16 deaths (14%). Perioperative myocardial infarction was the main cause of in-hospital mortality. In the follow-up there were 4 deaths due to myocardial infarction and another 4 patients died from neoplasms. Perioperative myocardial infarction was present in 9.3% (12 patients) IN CONCLUSION: a) Re-do coronary by-pass grafting is still a good procedure for solving myocardial ischemia in spite of a higher mortality and morbidity than in the original operation. b) There is no progression in the number of patients according to our experience, probably due to better techniques and the frequent actions by an intervention cardiologist. c) The long-term results are good enough, but with a higher mortality.

[Severe chronic ischemic ventricular dysfunction. Determinants of surgical risk and long-term clinical outcome]. / Disfunción ventricular isquémica crónica severa. Determinantes del riesgo quirúrgico y del resultado clínico a largo plazo.

INTRODUCTION: In patients with chronic ischemic heart disease, a severe ventricular dysfunction is associated with a higher operative risk and to a worse late clinical outcome. However, when there is sufficient viable myocardium, surgical revascularization can improve ventricular performance and above all the functional capacity and survival of these patients. OBJECTIVES: To analyze long-term results of a large series of patients with an ejection fraction < or = 0.30 that underwent isolated coronary artery bypass surgery and to investigate factors, mainly clinical, that determined favorable clinical results: being that the patient was alive and free of incapacitating symptoms. PATIENTS AND METHODS: This series included 100 patients, 93 males and 7 females, with a mean age of 62 +/- 8 years. The predominant clinical manifestation was angina in 37, congestive heart failure in 22 and both in 41. Seventy-nine patients were in functional class III or IV, and 19 had emergency surgery. RESULTS: There were 10 in-hospital deaths, 6 of which occurred in patients who had emergency surgery. Mortality in the elective cases was 4.9%. Only age (p < 0.05), functional class (p < 0.05) and emergency surgery (p < 0.0001) were identified as independent predictors of early mortality. Actuarial survival rates after 5 and 8 years were 65 and 52% respectively. Long-term clinical outcome was considered favorable in 66 patients. We did not find any preoperative clinical variables that were predictors of the clinical outcome. Only preoperative mitral insufficiency correlated with a poor long-term clinical result. CONCLUSIONS: Patients with chronic and severe ventricular dysfunction secondary to coronary artery disease have an acceptable surgical risk when they are operated on electively, before their clinical condition deteriorates. Long-term results are satisfactory in the majority of the patients. In these types of patients clinical manifestations are of limited value in the selection process for surgical revascularization.

Massive calcification of the left atrium: surgical implications.

BACKGROUND: Massive calcification of the atrial walls ("porcelain atrium") is a rare condition that usually has been reported as an incidental radiologic findings. METHODS: Between January 1988 and June 1993, 971 patients underwent valvular operation at our institution; 21 patients showed extensive calcification of the left atrium. In 8 patients the calcification was massive, involving almost all the atrial surface. The diagnoses were established by radiology and were confirmed at operation. The mean age of these patients (4 men, 4 women) was 55 +/- 9.6 years. All had rheumatic valve disease, were on atrial fibrillation, and had undergone at least one operation previously. Pulmonary artery pressure was severely increased, even up to systemic levels, in all patients except 1. Total endoatriectomy of the left atrium and mitral valve replacement were performed. No patient was lost during the follow-up. RESULTS: Hospital mortality rate was 12.5% (1 patient) and 2 patients died in the late postoperative period. None of these deaths are attributable to the surgical procedure. CONCLUSIONS: In toto endoatriectomy of a massively calcified atrium is an easy to perform technique that helps to replace the mitral valve and close the atrial wall.

Thoracic aneurysm as a cause of chyluria: resolution by surgical treatment.

A 37-year-old man who had suffered a thoracic trauma presented night release of whitish urine 2 years later. Thoracic computed tomography and aortography demonstrated an aneurysm of the thoracic aorta. Lymphography confirmed the compression of the thoracic duct by the aneurysm. After surgical repair the patient has remained asymptomatic.

[Orthotopic heart transplantation in a patient with previously undiagnosed persistence of the left superior vena cava]. / Trasplante cardíaco ortotópico en un paciente con persistencia de vena cava superior izquierda no diagnosticada previamente.

The amount of transplants has gone through a remarkable increase during the last years. As a result, congenital anomalies of little prevalence appear more and more often while performing the transplants. The persistence of upper cava vein is one of them and, if not linked to other anomalies, it usually remains unnoticed. This article presents a case of an orthotopic cardiac transplant in a patient with an upper cava vein duplication not diagnosed before undergoing surgery, and it compares the way it was handled to diverse techniques previously described.

Cardiac surgery in patients under chronic hemodialysis.

A total of 15 chronic renal failure patients on hemodialysis therapy underwent some kind of cardiovascular surgery between August 1984 and March 1993. Ten had a valve abnormality, and the remaining five had coronary artery disease. All of them were hemodialyzed the day before surgery and 24-48 h after the operation. Eleven recovered well after surgery, four died of septic shock: two of these were in septic shock prior to surgery; one was in acute congestive heart failure, and one was operated during an acute myocardial infarction. All operative deaths occurred in the patients who underwent non-elective surgery or were preoperatively in New Heart Association (NYHA) class IV. The factors having an impact on morbidity and mortality seem to be more related to the previous clinical situation and to the urgency of the operation than to the status of chronic renal failure. An early and adequate assessment of the candidates, when possible avoiding emergency surgery and acute left ventricular dysfunction, as well as careful management during cardiopulmonary bypass procedures (CPB) and the immediate post-surgical period will certainly improve the result of cardiac surgery in these patients, making it similar to those who are not in chronic renal failure.