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1.
Clinics ; 68(7): 940-945, jul. 2013. tab, graf
Artículo en Inglés | LILACS | ID: lil-680694

RESUMEN

OBJECTIVE: Hypoalbuminemia is a common clinical deficiency in burn patients and is associated with complications related to increased extravascular fluid, including edema, abnormal healing, and susceptibility to sepsis. Some prognostic scales do not include biochemical parameters, whereas others consider them together with comorbidities. The purpose of this study was to determine whether serum albumin can predict mortality in burn patients. METHODS: We studied burn patients ≥16 years of age who had complete clinical documentation, including the Abbreviated Burn Severity Index, serum albumin, globulin, and lipids. Sensitivity and specificity analyses were performed to determine the cut-off level of albumin that predicts mortality. RESULTS: In our analysis of 486 patients, we found that mortality was higher for burns caused by flame (p = 0.000), full-thickness burns (p = 0.004), inhalation injuries (p = 0.000), burns affecting >30% of the body surface area (p = 0.001), and burns associated with infection (p = 0.008). Protein and lipid levels were lower in the patients who died (p<0.05). Albumin levels showed the highest sensitivity and specificity (84% and 83%, respectively), and the area under the receiver-operating characteristic curve (0.869) had a cut-off of 1.95 g/dL for mortality. CONCLUSION: Patients with albumin levels <2 g/dL had a mortality risk of >80%, with 84% sensitivity and 83% specificity. At admission, the albumin level could be used as a sensitive and specific marker of burn severity and an indicator of mortality. .


Asunto(s)
Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven , Quemaduras/sangre , Quemaduras/mortalidad , Hipoalbuminemia/sangre , Albúmina Sérica/análisis , Estudios Transversales , Hipoalbuminemia/complicaciones , Hipoalbuminemia/mortalidad , Puntaje de Gravedad del Traumatismo , Tiempo de Internación , Estudios Retrospectivos , Factores de Riesgo , Sensibilidad y Especificidad
2.
Cir. & cir ; 76(4): 329-331, jul.-ago. 2008. ilus
Artículo en Español | LILACS | ID: lil-568078

RESUMEN

BACKGROUND: Marjolin's ulcer forms part of a group of neoplasms that originate in a burn scar, a phenomenon associated with superficial tissue trauma. The frequency of Marjolin's ulcer is low and represents between 2 and 5% of all squamous cell carcinomas of the skin. This condition is found three times more frequently in men than in women and is thought to be more aggressive than conventional squamous cell carcinoma of the skin. CLINICAL CASES: We present two cases of squamous cell carcinoma that originated on a burn scar. 41 year old woman with gasoline burn on the left foot, 3 months old, in whom an exofitic ulcerated lesion on the right calcaneum region has evolved since she was 32 years old. Left transtibial amputation was decided. Another woman who started its suffering 9 years after a thorax burn with a progressive fungus lesion on the scar area. For its size and as it was a high degree neoplasia, surgical resection and radiotherapy to the zone of the primary with 50 Gy in 25 fractions was decided. CONCLUSIONS: Marjolin's ulcer usually occurs in old burn sites that were not skin grafted and were left to heal secondarily. Although it is believed that there is a latency period of 25-40 years after burn injury before the occurrence of malignancy, this may occur in a period as short as 3 months. Recurrence after radical surgery is 14.7%. Nonetheless, because of the aggressive behavior of this type of cancer, appropriate radical treatment allows an adequate control of the disease. Early grafting of the burn site can prevent the formation a malignant neoplasm. This condition should be suspected in a non-healing chronic ulcer on a burn scar.


Asunto(s)
Humanos , Femenino , Adulto , Carcinoma de Células Escamosas/etiología , Cicatriz/complicaciones , Enfermedades del Pie/etiología , Neoplasias Cutáneas/etiología , Quemaduras/complicaciones , Úlcera Cutánea/etiología , Amputación Quirúrgica , Progresión de la Enfermedad , Dorso , Terapia Combinada , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/radioterapia , Carcinoma de Células Escamosas/cirugía , Cicatriz/patología , Enfermedades del Pie/patología , Enfermedades del Pie/radioterapia , Enfermedades del Pie/cirugía , Esquizofrenia Paranoide/complicaciones , Neoplasias Cutáneas/patología , Neoplasias Cutáneas/radioterapia , Neoplasias Cutáneas/cirugía , Radioterapia Adyuvante , Factores de Tiempo , Traumatismos de los Pies/complicaciones , Traumatismos de los Pies/cirugía , Úlcera Cutánea/diagnóstico
3.
Cir. & cir ; 76(1): 23-28, ene.-feb. 2008. graf, tab
Artículo en Español | LILACS | ID: lil-568184

RESUMEN

BACKGROUND: Breast cancer is the most common type of cancer in women worldwide. In Mexico, >34% of patients are in locally advanced stages at the time of diagnosis. Neoadjuvant chemotherapy is administered to control local disease, make surgical resection possible and increase the possibility of breast tissue conservation. METHODS: We performed a double-blind, randomized clinical trial in patients with locally advanced breast cancer (stages IIB and IIIA) with two therapy schemes; 5-fluorouracil-epirubicin-cyclophosphamide (control group) vs. docetaxel-epirubicin (study group). Both were indicated in three preoperative cycles, and patients were submitted afterwards to surgery. Pathological response was measured. RESULTS: Forty one patients were included in our study. They were distributed in two homogeneous groups: 21 in the control group and 20 in the study group. Dimensional pathological response was higher in the study group than in the control one (p <0.05). Five patients in the control group and ten patients of the study group experienced complete pathological response (p <0.05). The most common secondary events were leucopenia, neutropenia and fever. Morbidity, number of lymph nodes, disease-free survival and general survival did not show significant differences between groups. No mortality was reported during a minimum follow-up of 28 months. CONCLUSIONS: Our results confirm the effectiveness of docetaxel-epirubicin to obtain complete pathological response. Neoadjuvant therapy has been shown to increase the pathological response when a taxane is added to an anthracycline. This combination presented more secondary events, but they can be effectively managed medically. Neoadjuvant docetaxel-epirubicin followed by surgery is an appropriate regimen for patients with locally advanced breast cancer.


Asunto(s)
Humanos , Femenino , Adulto , Persona de Mediana Edad , Adenocarcinoma/tratamiento farmacológico , Terapia Neoadyuvante , Neoplasias de la Mama/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Adenocarcinoma , Neoplasias de la Mama , Terapia Combinada , Ciclofosfamida , Método Doble Ciego , Enfermedades Hematológicas/inducido químicamente , Epirrubicina , Fluorouracilo , Metástasis Linfática , Mastectomía , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Supervivencia sin Enfermedad , Taxoides , Resultado del Tratamiento , Terapia Neoadyuvante/efectos adversos
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