RESUMEN
BACKGROUND: Differences in incidence and survival in osteosarcoma reports are considerable worldwide. PURPOSE: This study describes the incidence and survival of patients with osteosarcoma in Argentina with data from the National Pediatric Cancer Registry (ROHA), and the impact of age, gender, stage, regional, and socioeconomic indicators on outcome. METHODS: Pediatric patients with osteosarcoma reported to ROHA from 2000 through 2013 were analyzed, the annual age-standardized incidence rate (ASR) was calculated using the National Vital Statistics, and survival was estimated. The extended human development index (EHDI) for each reporting region was used as an indicator of socioeconomic status. RESULTS: There were 515 cases of osteosarcoma identified, yielding an ASR of 3.2/1,000,000 children (0-14 years old). The ASR did not vary significantly by year of diagnosis but ranged from 4.0/1,000,000 in the Cuyo/Western Central region to 2.7/1,000,000 in the northeast region (P < 0.000). The estimated 5-year survival rate was 45% (95% confidence interval [CI] 44-51%), with no difference by sex, diagnosis year, region, or EHDI score (P > 0.1 in all cases). Survival rate for localized disease was 52% (95% CI 45-57%) and for metastatic 22% (95% CI 15-30%). CONCLUSIONS: In Argentina, ASR of osteosarcoma is similar to that in high-income countries, but survival is lower in all regions. Future work will focus on identification and reduction of causes of preventable treatment failure.
Asunto(s)
Osteosarcoma/mortalidad , Sistema de Registros , Adolescente , Factores de Edad , Argentina/epidemiología , Niño , Preescolar , Supervivencia sin Enfermedad , Femenino , Humanos , Incidencia , Lactante , Recién Nacido , Masculino , Metástasis de la Neoplasia , Osteosarcoma/patología , Osteosarcoma/terapia , Estudios Retrospectivos , Factores Sexuales , Factores Socioeconómicos , Tasa de SupervivenciaRESUMEN
The aim of the present study was to examine the effect of an intensified training phase followed by a tapering phase on the salivary immunoglobulin A concentration and on the upper respiratory tract infection (URTI) symptoms in young male basketball players. The session rating of perceived exertion method was used to quantify the internal training load, and the Wisconsin Upper Respiratory Symptom Survey-21 questionnaire was used to assess URTI symptoms. The Yo-Yo IR1 test and saliva collection were carried out at the beginning of the study (T1), after the intensified phase (T2), and after tapering (T3). A higher internal training load was observed for the intensified phase compared with the tapering phase (t=19.10; p<0.001), and a significant decrease in salivary immunoglobulin A concentration was detected (F=7.48; p=0.004) at T3 compared to T1 (p=0.02) and T2 (p=0.05). However, there was no significant difference between phases for severity of URTI (χ2= 2.83; p=0.242). The Yo-Yo IR1 test performance increased from T2 and T3 compared to T1 (F=58.24; p<0.001). There was no significant effect of aerobic fitness level on salivary immunoglobulin A response (F=1.095; p=0.344). In summary, the present findings suggest that an intensified training load followed by a tapering period negatively affects the mucosal immune function with no significant change in severity of URTI in young basketball players.
RESUMEN
Athletes engaged in strenuous training might experience transient immune suppression that could lead to greater incidence of upper respiratory tract infections (URTI). Since interleukin 21 (IL-21) stimulates immunoglobulin A (IgA) secreting cells and a low level of this immunoglobulin is associated with increased incidence of URTI, the aim of the present study was to investigate the effect of a basketball match on salivary cortisol (sC), salivary IL-21 (sIL-21) and salivary IgA (sIgA) levels. Twenty male basketball players participated in an official game in two teams (10 players in each team). The saliva samples were collected before the warm-up and approximately 10-15 min after the end of the match and were analysed by ELISA methods. sC concentration increased significantly after the match while sIL-21 level was reduced (p < 0.05). In opposition to the study's hypothesis, sIgA level did not change in response to the match. The present findings suggest that a basketball match is sufficiently stressful to elevate sC concentration and attenuates the sIL-21 output without compromising the sIgA level. It is reasonable to speculate that the stability of sIgA acute responses to the match, despite the decrement in sIL-21, indicates that other mechanisms rather than IL-21 stimulating B cell proliferation/differentiation might modulate IgA concentration and secretion rate.
RESUMEN
Se presentan 3 casos de tumores primitivos de origen pleuropulmonar:2 blastomas pleuropulmonares y un mesotelioma.Se obtuvieron inicialmente remisiones completas con quimioterapia convencional,cirugía y en uncaso se agregó radioterapia.Un paciente murió a los 14 meses y 2 están en progresión de enfermedad 12 y 14 meses después del diagnóstico.Terapia multimodal,cirugía,poliquimioterapia y radioterapia,juegan un rol importante en el tratamiento de estos tumores,sin embargo es insuficiente y no previenen la recurrencia local y/o metástasis.Se hace hincapié en el mal pronóstico de este tipo de tumores
Asunto(s)
Humanos , Preescolar , Blastoma Pulmonar/cirugía , Blastoma Pulmonar/diagnóstico , Mesotelioma/cirugía , Mesotelioma/diagnóstico , Blastoma Pulmonar/tratamiento farmacológico , Blastoma Pulmonar/radioterapia , Mesotelioma/tratamiento farmacológico , Mesotelioma/radioterapiaRESUMEN
Se presentan 3 casos de tumores primitivos de origen pleuropulmonar:2 blastomas pleuropulmonares y un mesotelioma.Se obtuvieron inicialmente remisiones completas con quimioterapia convencional,cirugía y en uncaso se agregó radioterapia.Un paciente murió a los 14 meses y 2 están en progresión de enfermedad 12 y 14 meses después del diagnóstico.Terapia multimodal,cirugía,poliquimioterapia y radioterapia,juegan un rol importante en el tratamiento de estos tumores,sin embargo es insuficiente y no previenen la recurrencia local y/o metástasis.Se hace hincapié en el mal pronóstico de este tipo de tumores
Asunto(s)
Humanos , Preescolar , Mesotelioma/diagnóstico , Mesotelioma/cirugía , Blastoma Pulmonar/diagnóstico , Blastoma Pulmonar/cirugía , Mesotelioma/tratamiento farmacológico , Mesotelioma/radioterapia , Blastoma Pulmonar/tratamiento farmacológico , Blastoma Pulmonar/radioterapiaRESUMEN
A 41 years old woman with polymyositis-dermatomyositis with cardiac involvement is presented. The patient evolved with congestive heart failure, the electrocardiogram showed a left anterior hemiblock, lack of progression of R waves from V1 to V4 and unspecific ST and T alterations. Echocardiogram and cardiac catheterization showed global ventricular disfunction and pulmonary hypertension. An endomyocardial biopsy performed at the apex of the right ventricle showed mononuclear inflammatory infiltration, myocardial fiber degeneration and fibrosis. Initially, the patient responded well to diuretic, vasodilator and steroid therapy. Posteriorly she developed an atrial flutter that required electrical cardioversion and later died suddenly during the course of an acute pneumonia.