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AIM: The aim of this study was to assess the effects of long-term physical exercise on peripheral nerve using both nerve conduction study (NCS) and ultrasonography (US). METHODS: The authors measured nerve conduction study and ultrasonography in 15 male (mean, 20±1.5 years) handball players and 13 male (mean, 21.3±1.9 years) control subjects. Cross-sectional area of the median nerve was evaluated using ultrasonography at the carpal tunnel and 6 cm proximal to the wrist, and the ulnar nerve at 6 cm proximal to the wrist crease, 2 cm proximal to the medial epicondyle, the epicondyle, and 2 cm distal to epicondyle. RESULTS: US shows significantly increased cross-sectional area of both median and ulnar nerve in the players compared with that in the controls, and the latency times in both nerves were significantly delayed in the players compared with that in the controls. Cross-sectional area of the median nerve showed a significant correlation with latency (r=0.330, P<0.01). CONCLUSION: This study suggests that the players have a tendency toward having both median and ulnar motor nerve damage in the wrist or elbow region although they are asymptomatic.
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Ejercicio Físico/fisiología , Nervio Mediano/diagnóstico por imagen , Nervio Mediano/fisiología , Conducción Nerviosa , Nervio Cubital/diagnóstico por imagen , Nervio Cubital/fisiología , Adolescente , Adulto , Humanos , Masculino , Deportes/fisiología , Factores de Tiempo , Ultrasonografía , Adulto JovenRESUMEN
Gas in the joint space was observed in three patients with condylar fracture who were referred for CT examinations of the mandible. CT showed that the condylar fractures were non-open fractures. The gas was only observed in the intrajoint capsule of the temporomandibular joint (TMJ). Follow-up CT, 4 days after the initial CT, showed that the gas in the joint space was absorbed in one of three cases. In the non-open condylar fractures, the gas collection in the TMJ was considered to be a vacuum phenomenon due to the intact joint capsule of the TMJ on CT.
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Cápsula Articular/patología , Cóndilo Mandibular/lesiones , Fracturas Mandibulares/patología , Articulación Temporomandibular/lesiones , Adulto , Femenino , Gases , Humanos , Cápsula Articular/diagnóstico por imagen , Masculino , Cóndilo Mandibular/diagnóstico por imagen , Fracturas Mandibulares/diagnóstico por imagen , Articulación Temporomandibular/diagnóstico por imagen , Tomografía Computarizada por Rayos XRESUMEN
We report the radiographical findings of a rare case of intraosseous schwannoma of the mandible. The tumour that presented as a unilocular, well-defined, radiolucent lesion on plain radiography was located in the molar region. On CT, the tumour was a well-demarcated mass with no periosteal reaction and no destruction of the bone cortex. Destructive changes in the cortical wall of the mandibular canal by the tumour were observed on CT, but no evidence of dilatation and shift in the inferior mandibular canal was seen. MR imaging revealed that the mandibular canal was encased by the tumour as a solid mass without cystic parts. The signal intensity of the tumour was non-specific on MRI. Characteristics of intraosseous schwannoma in the mandible are the encasement of the canal by a well-demarcated tumour without periosteal reaction and the destruction of mandibular bone cortex. The destructive change of the inferior mandibular canal can be observed on CT and MRI. However, a biopsy is necessary to make the final diagnosis because of the non-specificity of the findings.
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Neoplasias Mandibulares/diagnóstico , Neurilemoma/diagnóstico , Anciano , Femenino , Humanos , Imagen por Resonancia Magnética , Neoplasias Mandibulares/diagnóstico por imagen , Neurilemoma/diagnóstico por imagen , Tomografía Computarizada por Rayos XRESUMEN
The present study addressed the incidence of unpredicted hemodynamic collapse in off-pump coronary artery bypass grafting (OPCAB). Since 1999, OPCAB was attempted in 114 patients without preoperative hemodynamic collapse to date. 95% patients of OPCAB were completed without percutaneous cardiopulmonary support (PCPS) and all patients were discharged. In this study, patients are divided into a prophase of 60 patients and an anaphase of 50 patients, in consideration of learning curve. As for the trouble in procedures, 12 patients of ventricular fibrillation, 6 patients of conversion to PCPS, 19 patients of bradycardia which were evaded in temporary pacing were observed. Patients with conversion to PCPS decreased in 5 patients (8%) in prophase and 1 patient (1.8%) in anaphase. Avoidance of hemodynamic collapse were prevention of ischemia by positive use of coronary perfusion, prophylactic intra-aortic balloon pumping (IABP) use for decrease of blood pressure, apical evacuation heart positioner for visual field security.
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Puente de Arteria Coronaria/efectos adversos , Puente de Arteria Coronaria/métodos , Enfermedad Coronaria/cirugía , Complicaciones Intraoperatorias/etiología , Complicaciones Intraoperatorias/prevención & control , Choque/etiología , Choque/prevención & control , Adulto , Anciano , Anciano de 80 o más Años , Puente Cardiopulmonar , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios RetrospectivosRESUMEN
A 71-year-old male was admitted to our hospital for examination of mediastinal abnormal shadow, which was diagnosed aortic arch aneurysm. Once he was discharged and stayed at home for 2 weeks, and then re-admitted for surgery. On the 3rd day of 2nd admission, he suddenly fainted away in the ward and was in shock by hemorrhagic cardiac tamponade. He was transferred to operation room within an hour from onset of rupture. Emergent aortic arch replacement was performed under circulatory arrest with deep hypothermia and retrograde cerebral perfusion. His postoperative course was uneventful without any neurological deficits. Prompt diagnosis and surgery may contribute to improvement of surgical result in patients with ruptured aortic arch aneurysms.
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Aneurisma de la Aorta Torácica/cirugía , Rotura de la Aorta/cirugía , Implantación de Prótesis Vascular , Anciano , Aorta Torácica/cirugía , Taponamiento Cardíaco/etiología , Urgencias Médicas , Humanos , MasculinoRESUMEN
Forty-seven patients (pts) were underwent total aortic arch replacement (TAAR) were studied to compare the early and late results between atherosclerotic (AA) and dissecting aneurysm (DA). There were 23 pts with AA and 24 pts with 24 pts. Preoperative risk were observed with shock in 12 pts (26%), major organ ischemia in 2 pts (4%), rupture in 8 pts (17%), stroke in 8 pts (17%) and coronary artery disease in 4 pts (9%). Operative procedure was TAAR in 22 pts, TAAR with ascending aorta replacement in 14 pts, and TAA with descending aorta replacement in 11 pts. Hospital mortality was 21 pts (45%) and late mortality was a surgical death after thoracoabdominal aneurysm in 1 pts. There was no difference in early and late survival rate, however early mortality was higher in pts with ruptured AA and with DA suffered from preoperative shock. There were 19 of early death in recent pts without rupture in AA and preoperative shock in DA.
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Aneurisma de la Aorta Torácica/cirugía , Disección Aórtica/cirugía , Arteriosclerosis/cirugía , Implantación de Prótesis Vascular/mortalidad , Adulto , Anciano , Anciano de 80 o más Años , Disección Aórtica/mortalidad , Aorta Torácica/cirugía , Aneurisma de la Aorta Torácica/mortalidad , Aneurisma de la Aorta Torácica/patología , Arteriosclerosis/complicaciones , Arteriosclerosis/mortalidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tasa de SupervivenciaRESUMEN
OBJECTIVES: We sought to determine the electrocardiographic (ECG) features associated with acute left main coronary artery (LMCA) obstruction. BACKGROUND: Prediction of LMCA obstruction is important with regard to selecting the appropriate treatment strategy, because acute LMCA obstruction usually causes severe hemodynamic deterioration, resulting in a less favorable prognosis. METHODS: We studied the admission 12-lead ECGs in 16 consecutive patients with acute LMCA obstruction (LMCA group), 46 patients with acute left anterior descending coronary artery (LAD) obstruction (LAD group) and 24 patients with acute right coronary artery (RCA) obstruction (RCA group). RESULTS: Lead aVR ST segment elevation (>0.05 mV) occurred with a significantly higher incidence in the LMCA group (88% [14/16]) than in the LAD (43% [20/46]) or RCA (8% [2/24]) groups. Lead aVR ST segment elevation was significantly higher in the LMCA group (0.16 +/- 0.13 mV) than in the LAD group (0.04 +/- 0.10 mV). Lead V(1) ST segment elevation was lower in the LMCA group (0.00 +/- 0.21 mV) than in the LAD group (0.14 +/- 0.11 mV). The finding of lead aVR ST segment elevation greater than or equal to lead V(1) ST segment elevation distinguished the LMCA group from the LAD group, with 81% sensitivity, 80% specificity and 81% accuracy. A ST segment shift in lead aVR and the inferior leads distinguished the LMCA group from the RCA group. In acute LMCA obstruction, death occurred more frequently in patients with higher ST segment elevation in lead aVR than in those with less severe elevation. CONCLUSIONS: Lead aVR ST segment elevation with less ST segment elevation in lead V(1) is an important predictor of acute LMCA obstruction. In acute LMCA obstruction, lead aVR ST segment elevation also contributes to predicting a patient's clinical outcome.
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Estenosis Coronaria/diagnóstico , Vasos Coronarios , Electrocardiografía/métodos , Enfermedad Aguda , Adulto , Anciano , Análisis de Varianza , Circulación Colateral , Angiografía Coronaria , Estenosis Coronaria/clasificación , Estenosis Coronaria/mortalidad , Estenosis Coronaria/fisiopatología , Estenosis Coronaria/terapia , Análisis Discriminante , Electrocardiografía/instrumentación , Electrocardiografía/normas , Femenino , Hemodinámica , Humanos , Modelos Lineales , Masculino , Persona de Mediana Edad , Selección de Paciente , Valor Predictivo de las Pruebas , Pronóstico , Estudios Retrospectivos , Sensibilidad y Especificidad , Resultado del TratamientoRESUMEN
To examine the clinical features of primary cardiac tumors, 34 patients who underwent surgical treatment from 1973 to 2000 at the Kanazawa University Hospital were analyzed and the literature was reviewed. The 34 patients were divided into 3 categories: (i) myxomas; (ii) benign non-myxomas; and (iii) malignant tumors. Twenty-three patients (70%) were diagnosed with myxomas, including 22 left atrial myxomas and 1 right atrial myxoma. Seven patients (18%) were diagnosed with benign non-myxoma tumors, including 3 hemangiomas, 1 fibroma, 1 rhabdomyoma, 1 pheochromocytoma, and 1 lipoma. Four patients (12%) were diagnosed with malignant tumors, including 2 angiosarcomas, 1 rhabdomyosarcoma, and 1 malignant fibrous histiocytoma. Among the myxoma patients, in-hospital mortality was 9% (2/23), late mortality was 10% (2/21), and no recurrent myxomas have been identified. Among benign non-myxoma patients there were no perioperative deaths; however, 1 patient died 11 years after surgery, with no linked cause. No recurrent tumors have been identified. Among malignant tumor patients, 1 patient died the day following surgery and the rest died within 14 months. Early and late results of surgery were acceptable for those patients with benign tumors, while the prognosis for patients with malignant tumors was very poor.
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Neoplasias Cardíacas/cirugía , Mixoma/cirugía , Adolescente , Adulto , Anciano , Femenino , Neoplasias Cardíacas/epidemiología , Neoplasias Cardíacas/mortalidad , Neoplasias Cardíacas/patología , Hemangioma/cirugía , Hemangiosarcoma/mortalidad , Hemangiosarcoma/cirugía , Histiocitoma Fibroso Benigno/mortalidad , Histiocitoma Fibroso Benigno/cirugía , Humanos , Japón/epidemiología , Lipoma/cirugía , Masculino , Persona de Mediana Edad , Feocromocitoma/cirugía , Complicaciones Posoperatorias/mortalidad , Pronóstico , Estudios Retrospectivos , Rabdomioma/cirugía , Rabdomiosarcoma/mortalidad , Rabdomiosarcoma/cirugía , Resultado del TratamientoRESUMEN
A 71-year-old male is presented as ever the oldest patient of tetralogy of Fallot who underwent successful radical surgery. Heart murmur was pointed out at the age of 10 years. The patient consulted us because of dyspnea and cough, and was noted to have cyanosis and clubbing fingers. Polycythemia was also detected by hemoglobin of 20.8 g/dl and hematocrit of 58.4%, and a low PaO2 of 48.5 mmHg at room temperature was pointed out. Preoperative echocardiography and cardiac catheterization indicated a ventricular septal defect, overriding of the aorta, and right ventricular outflow tract stenosis with a pressure gradient of 115 mmHg between the right ventricle and the main pulmonary artery. Under cardiopulmonary bypass, the ventricular septal defect was closed with a dacron patch and the right ventricular outflow tract was enlarged by a patch of collagen-coated vascular graft with a commissurotomy of the pulmonary valve. Postoperatively, cyanosis disappeared and the pressure gradient was decreased to 26 mmHg.
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Tetralogía de Fallot/cirugía , Anciano , Humanos , Masculino , Tetralogía de Fallot/diagnóstico por imagen , UltrasonografíaRESUMEN
A 72-year-old woman who had been diagnosed as homozygous familial hypercholesterolemia was admitted for chest discomfort. Computed tomography and cardiac catheterization revealed severe calcification of the aortic root and a high grade stenosis of the proximal right coronary artery. Aortic valve replacement concomitant with coronary artery bypass was done using temporary hypothermic circulatory arrest. This is preferred method when dealing the calcified aorta.
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Enfermedades de la Aorta/cirugía , Estenosis de la Válvula Aórtica/cirugía , Calcinosis/cirugía , Implantación de Prótesis de Válvulas Cardíacas , Homocigoto , Hiperlipoproteinemia Tipo II/complicaciones , Anciano , Aorta Torácica , Enfermedades de la Aorta/diagnóstico por imagen , Enfermedades de la Aorta/etiología , Estenosis de la Válvula Aórtica/diagnóstico por imagen , Estenosis de la Válvula Aórtica/etiología , Calcinosis/diagnóstico por imagen , Calcinosis/etiología , Cateterismo Cardíaco , Puente de Arteria Coronaria , Enfermedad de la Arteria Coronaria/diagnóstico , Enfermedad de la Arteria Coronaria/etiología , Enfermedad de la Arteria Coronaria/cirugía , Femenino , Humanos , Hiperlipoproteinemia Tipo II/genética , Hipotermia Inducida , Tomografía Computarizada por Rayos XRESUMEN
BACKGROUND: Ischemic preconditioning has been advocated as a method of cardioprotection for minimally invasive direct coronary artery bypass. This study was performed to estimate the cardioprotective effect of ischemic preconditioning before ischemia by examining the changes in myocardial tissue oxygenation and also to examine whether adenosine triphosphate-sensitive potassium channel opener enhances the cardioprotective effect of ischemic preconditioning. METHODS: Myocardial ischemia was induced in three groups of 6 dogs by temporary occlusion of the left anterior descending coronary artery. Group 1 dogs received a 30-minute coronary occlusion and subsequent 3-hour reperfusion. Groups 2 and 3 dogs underwent three periods of 5-minute coronary occlusion and 5-minute reperfusion and then received 30-minute sustained ischemia and 3-hour reperfusion. In group 3, nicorandil was administered during the procedure. Myocardial oxygenation was measured using three-wavelength near-infrared spectroscopy. Myocardial blood flow was measured by the colored microsphere method. RESULTS: During ischemic preconditioning the myocardial tissue oxygen saturation decreased rapidly at coronary occlusion and increased at reperfusion. It was increased stepwise at the second and third coronary occlusion. Myocardial oxygen saturation during 30-minute sustained ischemia was significantly higher in groups 2 and 3 than in group 1 (p < 0.05). The myocardial tissue hemoglobin concentration showed similar changes to myocardial oxygen saturation. During 30-minute sustained ischemia, it was significantly higher in group 2 than in group 1 (p < 0.001), and it was significantly higher in group 3 than in groups 1 and 2 (p < 0.05). Regional myocardial blood flow showed no difference after 30 minutes of sustained ischemia among the three groups. Troponin-T levels were significantly lower in groups 2 and 3 than in group 1 (p < 0.01). CONCLUSIONS: Ischemic preconditioning had beneficial effects on myocardial oxygenation during sustained ischemia, and the protected state of the myocardium could be monitored with the use of near-infrared spectroscopy. Ischemic preconditioning coupled with nicorandil administration might provide protection for minimally invasive direct coronary bypass.
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Precondicionamiento Isquémico Miocárdico , Monitoreo Intraoperatorio , Miocardio/metabolismo , Consumo de Oxígeno/fisiología , Espectroscopía Infrarroja Corta , Animales , Circulación Coronaria/efectos de los fármacos , Circulación Coronaria/fisiología , Perros , Daño por Reperfusión Miocárdica/fisiopatología , Nicorandil/farmacología , Consumo de Oxígeno/efectos de los fármacos , Vasodilatadores/farmacología , Función Ventricular Izquierda/efectos de los fármacos , Función Ventricular Izquierda/fisiologíaRESUMEN
OBJECTIVE: Familial hypercholesterolemia is a dominantly inherited disorder caused by mutations at the locus for the low-density lipoprotein receptor and is frequently associated with premature coronary artery disease. This study was performed to determine whether arterial grafting was associated with long-term benefits for patients with familial hypercholesterolemia. METHODS: During the past 18 years, 101 patients with heterozygous familial hypercholesterolemia underwent primary coronary artery bypass grafting, with one hospital death. Group 1 patients (n = 31) received only saphenous vein grafts. Group 2A patients (n = 47) received one internal thoracic artery graft and supplemental vein grafts, and group 2B patients (n = 23) had multiple arterial grafts. After operation, all patients received diet therapy and intensive cholesterol-lowering drug therapy. Thirteen patients received low-density lipoprotein apheresis. RESULTS: During a mean follow-up period of 95 months, 8 patients died, 9 underwent reoperation, and 12 received catheter intervention. The overall survival was 82% (95% confidence limits, 65%-97%) at 18 years after operation. The survival in group 2 was higher than that found in group 1 (P =.01). The overall freedom from major cardiac events (myocardial infarction, cardiac death, reoperation, and catheter intervention) was 57% (95% confidence limits, 40%-74%) at 16 years after operation. The freedom from reoperation in group 2 was higher than that found in group 1 (P =.03). There was no difference in the survival or freedom from major cardiac events between groups 2A and 2B. CONCLUSION: Arterial grafting improved the long-term freedom from reoperation in patients with familial hypercholesterolemia. Additional benefit of multiple arterial grafting could not be identified.
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Puente de Arteria Coronaria/métodos , Enfermedad Coronaria/cirugía , Hiperlipoproteinemia Tipo II/cirugía , Vena Safena/trasplante , Adulto , Anciano , Anticolesterolemiantes/uso terapéutico , HDL-Colesterol/sangre , LDL-Colesterol/sangre , Angiografía Coronaria , Enfermedad Coronaria/sangre , Enfermedad Coronaria/mortalidad , Femenino , Humanos , Hiperlipoproteinemia Tipo II/sangre , Hiperlipoproteinemia Tipo II/mortalidad , Anastomosis Interna Mamario-Coronaria , Masculino , Persona de Mediana Edad , Plasmaféresis , Reoperación , Estudios Retrospectivos , Tasa de Supervivencia , Triglicéridos/sangreRESUMEN
[reaction: see text] A novel procedure for synthesizing eight-membered ring compounds was developed using ruthenium-catalyzed enyne metathesis. When a CH2Cl2 solution of enyne connected with catechol, o-amino phenol, or o-phenylenediamine was stirred in the presence of benzylidene ruthenium carbene complex (10 mol %) at room temperature overnight, an eight-membered ring compound was obtained in high yield. In a similar manner, monocyclic 1,4-diaza- or 1-oxa-4-azacyclooctene derivative was obtained in high yield.
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PURPOSE: To examine changes in the reference segment luminal diameter after coronary angioplasty. METHODS: Sixty-one patients with stable angina pectoris or old myocardial infarction were examined. Coronary angiograms were recorded before coronary angioplasty (pre-angioplasty) and immediately after (post-angioplasty), as well as 3 months after. Artery diameters were measured on cine-film using quantitative coronary angiographic analysis. RESULTS: The diameters of the proximal segment not involved in the balloon inflation and segments in the other artery did not change significantly after angioplasty, but the reference segment diameter significantly decreased (4.7%). More than 10% luminal reduction was observed in seven patients (11%) and more than 5% reduction was observed in 25 patients (41%). More than 5% underestimation of the stenosis was observed in 22 patients (36%) when the post-angioplasty reference diameter was used as the reference diameter, compared with when the pre-angioplasty measurement was used and more than 10% underestimation was observed in five patients (8%). CONCLUSION: This study indicated that evaluation by percent diameter stenosis, with the reference diameter from immediately after angioplasty, overestimates the dilative effects of coronary angioplasty, and that it is thus better to evaluate the efficacy of angioplasty using the absolute diameter in addition to percent luminal stenosis.
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Angina de Pecho/terapia , Angioplastia Coronaria con Balón , Angiografía Coronaria , Enfermedad Coronaria/diagnóstico por imagen , Vasos Coronarios/patología , Infarto del Miocardio/terapia , Adulto , Anciano , Anciano de 80 o más Años , Angina de Pecho/diagnóstico por imagen , Angioplastia Coronaria con Balón/efectos adversos , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/diagnóstico por imagen , Variaciones Dependientes del Observador , Valores de ReferenciaRESUMEN
BACKGROUND: Basic fibroblast growth factor (bFGF) induces endothelial cell and smooth muscle cell proliferation and stimulates angiogenesis. This study was designed to evaluate the effects of intramyocardial administration of bFGF on myocardial blood flow, angiogenesis, and ventricular function in a canine acute infarction model. METHODS: Myocardial infarction was induced in 12 dogs by ligation of the left anterior descending coronary artery. Within 5 minutes after coronary occlusion, 100 microg of human recombinant bFGF in 1 mL of saline was injected into the infarct and border zone in 6 dogs, whereas saline alone was used in 6 control dogs. Myocardial blood flow was determined with colored microspheres before and immediately after coronary ligation and again 3, 7, 14, and 28 days after treatment and it was expressed as percent of normal. Angiogenesis was evaluated by immunohistochemical studies 28 days later. Cardiac function was evaluated by repeated echocardiographic measurement. RESULTS: Treatment with bFGF significantly increased the endocardial blood flow in the border zone (7 days after infarction, 75%+/-7% and 41% +/-7% in the bFGF and control groups, respectively, p<0.01) as well as epicardial blood flow in the infarcted zone. Treatment with bFGF significantly increased the capillary density (39.7+/-2.3 and 22.7+/-1.1 vessels per visual field in the bFGF and control groups, respectively, p<0.01) as well as arteriolar density in the border zone. Treatment with bFGF significantly reduced the change in ratio of thickness of the infarcted wall to the normal wall (44%+/-6% and 26% +/-5% in the bFGF and control groups, respectively, p<0.05). It improved the left ventricular ejection fraction (7 days after infarction, 0.54+/-0.02 and 0.37+/-0.03 in the bFGF and control groups, respectively, p<0.01). CONCLUSIONS: Intramyocardial administration of bFGF increased the regional myocardial blood flow, reduced thinning of the infarcted region, and improved ventricular function in acute myocardial infarction. Intramyocardial administration of bFGF may be a new therapeutic approach for patients with acute myocardial infarction.
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Vasos Coronarios/fisiología , Factor 2 de Crecimiento de Fibroblastos/uso terapéutico , Infarto del Miocardio/tratamiento farmacológico , Infarto del Miocardio/fisiopatología , Neovascularización Fisiológica/efectos de los fármacos , Animales , Modelos Animales de Enfermedad , Perros , Factor 2 de Crecimiento de Fibroblastos/farmacología , Inyecciones , Microesferas , Infarto del Miocardio/patología , Miocardio/patología , Proteínas Recombinantes/uso terapéutico , Flujo Sanguíneo Regional/efectos de los fármacos , Función Ventricular IzquierdaRESUMEN
A 53-year-old man with incidental renal cell carcinoma underwent gasless retroperitoneoscopic partial nephrectomy. Convalescence was uneventful. There remained no evidence of disease during the 58-month follow up.
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Carcinoma de Células Renales/cirugía , Neoplasias Renales/cirugía , Laparoscopía/métodos , Nefrectomía/métodos , Humanos , Masculino , Persona de Mediana Edad , Espacio RetroperitonealRESUMEN
Dye lasers are useful for treating pigmented skin lesions, but their equipment is expensive and bulky. A simple and cheap phototherapy would be acceptable to dermatologists for treating pigmented skin lesions such as nevus of Ota. We investigated as a pilot study whether dermal injection of riboflavin and exposure to near-ultraviolet/visible radiation (ribophototherapy) decreases the dermal pigment of blue nevi which are recalcitrant to laser therapy. The therapeutic efficacy was assessed by comparison of the amount of dermal pigment in hematoxylin-eosin specimens taken before and after treatment. Pigmentation of the nevus became faint to the depth of 1 mm with little noticeable epidermal change after 21 treatments. At the deeper dermis somewhere between 3 and 4 mm from the epidermis, ballooning degeneration of the dermal cells was observed in hematoxylin-eosin specimens. Ribophototherapy is hopeful for treating pigmented skin lesions.
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Nevo Azul/tratamiento farmacológico , Fotoquimioterapia/métodos , Fármacos Fotosensibilizantes/administración & dosificación , Riboflavina/administración & dosificación , Neoplasias Cutáneas/tratamiento farmacológico , Adulto , Humanos , Inyecciones Intradérmicas , Masculino , Microscopía Electrónica , Nevo Azul/patología , Neoplasias Cutáneas/patología , Pigmentación de la Piel/efectos de los fármacos , Pigmentación de la Piel/efectos de la radiación , Terapia UltravioletaRESUMEN
Three patients with angina pectoris and hypopituitarism underwent coronary artery bypass grafting. The patients received perioperative replacement steroid and thyroid hormone therapy, and there were no complications. Careful perioperative hormonal management is necessary for patients with hypopituitarism.
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Angina de Pecho/complicaciones , Angina de Pecho/cirugía , Puente de Arteria Coronaria , Hipopituitarismo/complicaciones , Anciano , Femenino , Humanos , Masculino , Persona de Mediana EdadRESUMEN
OBJECTIVE: To determine preoperatively, by analysing asynchronous left ventricular wall motion, whether to approach through the right ventricle or the left ventricle when carrying out catheter ablation of the accessory pathway in Wolff-Parkinson-White syndrome, especially in patients with the pathway located on the septum. METHODS: 73 patients with manifest Wolff-Parkinson-White syndrome who underwent successful catheter ablation were studied. Location of accessory pathway was classified as right ventricular side: right anterior paraseptum, right anterior, right lateral, right posterior, anterior septum, midseptum, right posterior septum; left ventricular side: left posterior septum, left posterior, left lateral, left anterior. Asynchronous systolic wall motion was analysed by cross sectional echocardiography. RESULTS: Echocardiography showed that the amplitude of left ventricular posterior systolic wall motion was reduced when the pathway was located on the left ventricular side as opposed to the right ventricular side (mean (SD), 11.1 (1.7) v 12.9 (1.1) mm, p < 0.001), especially in patients with left posterior septal accessory pathway (9.7 (0.8) mm). There were no overlapping values between the left posterior septal accessory pathway and the right ventricular side accessory pathway. Posterior wall notch motion was observed in all patients with a left posterior septal accessory pathway (9/9), but not at all in patients with pathways located on the right ventricular side of the septum. In patients with a septal accessory pathway, an ECG algorithm provided poor information (relatively low sensitivity, specificity, and predictive value) for determining whether the subsite faced either the left (left posterior septum) or the right ventricle (anterior septum, midseptum, right posterior septum). CONCLUSIONS: Decreased amplitude of left ventricular posterior wall motion with notch movement is an important finding for accessory pathways located on the left posterior septum. These findings provided clinically useful information for determining whether to approach catheter ablation from the right or the left ventricle.