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1.
CancerCancer ; 89(8): 1845-1853, 2000.
Artículo en Inglés | Coleciona SUS | ID: biblio-944990

RESUMEN

The prognosis of children who are affected by hepatoblastoma (HB) that presents with lung metastases has always been considered very poor. In light of the overall improvement in the survival of HB patients since the introduction of cisplatin (CDDP) in the therapeutic armament of this tumor, the question has been raised whether patients with metastatic HB also would benefit from this drug. The purpose of the current study was to address this issue by analyzing the treatment outcome of those patients presenting with metastases who entered into the first HB study on childhood liver tumors conducted by the International Society of Paediatric Oncology (SIOPEL 1). SIOPEL 1 was a prospective, international, multicentric, single-arm study based on preoperative chemotherapy that was open to patient registration from January 1990 to February 1994. After undergoing a biopsy, patients received four courses of CDDP (80 mg/m(2) in a 24-hour, continuous infusion) on Day 1 followed by doxorubicin (60 mg/m(2) in a 48-hour, continuous infusion) on Days 2 and 3 (PLADO). Surgery was performed after four courses of PLADO and was followed by two more courses. Untreated children age < 16 years with biopsy-proven HB were eligible for the study. Metastatic spread was assessed by chest X-ray and, where available, lung computed tomography scan. Thirty-one of 154 children that entered into the trial presented with metastases.


Eight children presently are alive with no evidence of disease (NED) after being treated with protocol therapy only (median follow-up, 60 months); nine children are alive with NED after having failed PLADO and having been rescued with alternative therapies (median follow-up, 80 months). The 5-year overall and event free survival rates for these children were 57% (95% confidence interval, 39-75%) and 28% (95% confidence interval, 12-44%), respectively. Persistent lung disease was the main reason for PLADO failure (17 of 23 patients; 74%). The SIOPEL 1 therapeutic strategy seems to cure 25% of the HB patients who present with metastases. However, further chemotherapy and the use of thoracotomies still can save significant numbers of these children.


Asunto(s)
Humanos , Niño , Hepatoblastoma , Neoplasias Pulmonares , Metástasis de la Neoplasia
2.
Dermatol Clin ; 17(1): 209-34, x, 1999 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-9987004

RESUMEN

The military dermatologist has a specific and significant role in military operations--in time of war as well as in peace. Many dermatologists are unfamiliar with the impact that our specialty and cutaneous disease has upon the ability of the military to fulfill the missions, duties, and responsibilities assigned by our government. This article highlights a few of the recent or ongoing types of military operations in which our specialty plays a prominent part.


Asunto(s)
Dermatología/organización & administración , Accesibilidad a los Servicios de Salud/organización & administración , Medicina Militar/organización & administración , Guerra , Cuba , Haití , Humanos , Océano Índico , Misiones Médicas , Islas del Pacífico , Estados Unidos
3.
Paediatr Perinat Epidemiol ; 8 Suppl 1: 143-57, 1994 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-8072896

RESUMEN

Information from the Jamaican Perinatal Mortality Survey was used to identify features of mothers and their pregnancies that were independently associated with perinatal death. Social, biological, environmental, life style and medical aspects of mothers and their pregnancies were collected on two inter-locking subsamples: (1) all births on the island of Jamaica in the 2 months of September and October 1986, the 'cohort months', and (2) all fetal deaths of weight 500 g or more, together with all neonatal deaths, in the 12-month period from 1 September 1986 to 31 August 1987. Singleton survivors from the cohort months were compared with all perinatal deaths in the 12-month period using logistic regression. The first model omitted items concerning past obstetric history, but these were included in the second model. In total, 21 variables entered the first model and 24 the second. The only item that became non-significant when past obstetric history was included was maternal age. The final model compared 1017 perinatal deaths with 7672 survivors. It consisted of the following: union (marital) status (married being at lower risk, P < 0.01), maternal employment status (housewives at lowest risk, P < 0.001), number of adults in household (the more the higher the risk, P < 0.05), the number of children aged < 11 (the more the lower the risk, P < 0.0001), use of toilet facilities (shared with other households increased risk, P < 0.001), maternal height (tall women at reduced risk, P < 0.001), mother's report that she was trying to get pregnant (P < 0.001), maternal alcohol consumption (drinkers had lower risk, P < 0.05), maternal syphilis (higher risk, P < 0.0001), bleeding before 28 weeks (higher risk, P < 0.0001), bleeding at 28 weeks or more (higher risk, P < 0.0001), first diastolic blood pressure (80 mm + at higher risk, P < 0.0001), highest diastolic blood pressure (100 mm + at increased risk, P < 0.0001), highest proteinuria (++ or more at increased risk, P < 0.0001), vaginal discharge/infection (untreated at increased risk, P < 0.001), pre-eclampsia diagnosed in antenatal period (increased risk, P < 0.01), maternal diabetes (increased risk, P < 0.05), start of antenatal care (first trimester at reduced risk, P < 0.01), iron taken (reduced risk, P < 0.0001), type of perinatal care available in parish of residence (reduced risk if consultant obstetricians and paediatricians available at all times, P < 0.0001), number of miscarriages and terminations (the more the higher the risk, P < 0.0001), previous stillbirth (higher risk, P < 0.0001), previous early neonatal death (higher risk, P < 0.001), previous Caesarean section (higher risk, P < 0.01). The implications for reduction in perinatal mortality rates are discussed.


Asunto(s)
Epidemiología , Muerte Fetal/epidemiología , Mortalidad Infantil , Estudios de Cohortes , Femenino , Humanos , Recién Nacido , Jamaica/epidemiología , Conducta Materna , Embarazo , Complicaciones del Embarazo , Atención Prenatal/estadística & datos numéricos , Factores de Riesgo , Factores Socioeconómicos
4.
Paediatr Perinat Epidemiol ; 8 Suppl 1: 119-42, 1994 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-8072895

RESUMEN

The Jamaican Perinatal Mortality Survey compared all 2069 perinatal deaths occurring during the 12 months between 1 September 1986 and 31 August 1987 with 10,086 survivors born in the 2 months of September and October 1986. The Wigglesworth classification identified 44% of the deaths as attributable to intrapartum asphyxia (IPA), and this grouping was largely confirmed by post-mortem examination where it had been carried out. About half of these babies weighted 2500 g+ and death should have been largely preventable. Comparison of the 813 IPA singleton deaths with 9919 singleton survivors using logistic regression showed independent associations with maternal employment status, the number of children in the household, maternal height, whether or not the mother was trying to get pregnant, or had ever used an intrauterine contraceptive device. Medical conditions such as syphilis, untreated vaginal infection, bleeding < 28 weeks, bleeding 28+ weeks, highest diastolic and first diastolic blood pressures and eclamptic fits antenatally were all strongly associated. Mothers who commenced antenatal care in the first trimester were at reduced risk as were those who took iron during pregnancy. There were substantial reductions in mortality in areas where better medical facilities were available. To this model, features of previous obstetric history were offered, but the only variables which entered were those relating to prior perinatal deaths and immediately preceding miscarriage and termination. Examination of specific features in the management of labour and delivery is a logical basis for the introduction of changes in practice. Caesarean section is unlikely to be appropriate but it is suggested that more active interventions in terms of use of forceps and/or vacuum extraction may be useful.


Asunto(s)
Asfixia Neonatal/mortalidad , Asfixia Neonatal/epidemiología , Estudios de Cohortes , Parto Obstétrico , Femenino , Accesibilidad a los Servicios de Salud , Humanos , Recién Nacido , Jamaica/epidemiología , Presentación en Trabajo de Parto , Trabajo de Parto , Masculino , Complicaciones del Trabajo de Parto , Embarazo , Factores de Riesgo , Análisis de Supervivencia , Factores de Tiempo
5.
Paediatr Perinat Epidemiol ; 8 Suppl 1: 6-16, 1994 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-8072902

RESUMEN

The Jamaican Perinatal Mortality Survey was designed to identify the true perinatal mortality rate, and assess the factors which could contribute towards a reduction in perinatal mortality on the island. All births in a 2-month period (n = 10527) were compared with all perinatal deaths occurring over a 12-month period (n = 2069). Over half the deaths (n = 1058) received a detailed post-mortem examination. Use of the Wigglesworth classification identifies the major component of perinatal death in this country to be associated with intrapartum asphyxia (44% of deaths). Deaths due to congenital malformations and miscellaneous causes contribute relatively little (< 10%) to the overall mortality rate. Over a quarter of deaths apparently occur before the onset of labour, and a fifth are prematurely liveborn but die of causes related to immaturity.


Asunto(s)
Muerte Fetal , Encuestas Epidemiológicas , Mortalidad Infantil , Proyectos de Investigación , Autopsia , Sesgo , Causas de Muerte , Estudios de Cohortes , Femenino , Objetivos , Humanos , Recién Nacido , Jamaica/epidemiología , Embarazo
6.
Paediatr Perinat Epidemiol ; 8 Suppl 1: 98-109, 1994 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-8072905

RESUMEN

All perinatal deaths occurring over a 12-month period on the island of Jamaica were classified using the Wigglesworth schema. In all, there were 584 antepartum fetal deaths (incidence 10.7 per 1000 total births). Comparison of the 558 singleton deaths with 9919 singleton survivors revealed, using logistic regression, strong associations with union (marital) status, maternal employment status, the composition of the household, the sole use of a toilet by the household, the parish of residence, whether the mother was trying to get pregnant and the mother's age (the older the mother the higher the risk). Independent of these factors were strong statistically significant relationships with syphilis, diabetes, maternal anaemia, third-trimester bleeding, highest diastolic blood pressure of 90mm or more and highest proteinuria of ++ or more. Mothers who had taken prophylactic iron were at substantially lower risk compared with those who had not. We conclude that appropriate identification and treatment of syphilis, diabetes, anaemia and hypertension give the best chance of reduction of the high antepartum fetal death rate on the island.


Asunto(s)
Muerte Fetal/epidemiología , Femenino , Humanos , Incidencia , Jamaica/epidemiología , Masculino , Embarazo , Complicaciones del Embarazo , Factores de Riesgo , Factores Socioeconómicos
7.
Acta Paediatr Scand ; 80(8-9): 749-55, 1991.
Artículo en Inglés | MEDLINE | ID: mdl-1957591

RESUMEN

A large population-based study of all stillbirths and neonatal deaths occurring on the island of Jamaica during a 12 month period is described. During this time, 2069 perinatal deaths were identified in an estimated total of 54,400 infants born giving a perinatal death rate of 38.0 per 1000 births. The death rate was 5 times higher among twins than singletons. An attempt was made to obtain detailed postmortem examination of as many cases as possible. In the event, 51% of the infants who died perinatally had such postmortem examination. Postmortem rate was affected by sex, multiplicity of the infant, time of death, month of death and area of delivery. Deaths were classified using the Wigglesworth scheme. The distribution of categories was similar in the months when the postmortem rate was 70% to the rest of the time period when the post-mortem rate was only 40%. The Wigglesworth classification of deaths identified those associated with intrapartum asphyxia as the most important group, accounting for over 40% of deaths overall and 59% of deaths in infants of more than 2500 g birthweight. Antepartum fetal deaths were the second largest group, comprising 20% of deaths. Sixty percent of the infants in this group weighed less than 2500 g at birth. Major malformations were responsible for few perinatal deaths in Jamaica. This simple classification is important as it focuses attention on details of labour and delivery that may require change and is useful in planning future delivery of obstetric and neonatal care.


PIP: A large population-based study of all stillbirths and neonatal deaths occurring on the island of Jamaica over a 12-month period is described. During this time, 2069 perinatal deaths were identified in an estimated total of 54,400 infants born giving a perinatal death rate of 38.0/1000 births. The death rate was 5 time higher among twins than singletons. An attempt was made to obtain detailed postmortem examination of as many cases as possible. In the event, 51% of the infants who died perinatally had such an examination. Postmortem rate was affected by sex, multiplicity of the infant, time of death, month of death, and area of delivery. Deaths were classified using the Wigglesworth scheme. The distribution of categories was similar in the months when the postmortem rate was 70% to the rest of the time when the rate was only 40%. The Wigglesworth classification of deaths identified those associated with intrapartum asphyxia as the most important group, accounting for over 40% of deaths overall and 59% of deaths in infants of more than 2500 g birthweight. Antepartum fetal deaths were the 2nd largest group. comprising 20% of deaths. 60% of the infants in this group weighed less than 2500 g at birth. Major malformations were responsible for few perinatal deaths in Jamaica. This simple classification is important since it puts attention on details of labor and delivery that may require change and is useful in planning future delivery of obstetric and neonatal care.


Asunto(s)
Mortalidad Infantil , Asfixia Neonatal/mortalidad , Autopsia/estadística & datos numéricos , Peso al Nacer , Femenino , Muerte Fetal , Hipoxia Fetal/mortalidad , Humanos , Recién Nacido , Jamaica/epidemiología , Masculino , Gemelos
8.
Int J Gynaecol Obstet ; 35(1): 19-27, 1991 May.
Artículo en Inglés | MEDLINE | ID: mdl-1680071

RESUMEN

Details of 62 maternal deaths occurring in 1986/1987 were compared with a control population. The incidence was 11.5 per 10,000 livebirths. The major cause of maternal mortality was hypertension followed by hemorrhage and infection. There were trends with advanced maternal age and high parity. The risk of maternal death varied with hospital facilities available, being lowest in areas with access to a specialist hospital and highest in areas where there were no obstetricians available.


Asunto(s)
Servicios de Salud Materna/provisión & distribución , Mortalidad Materna , Adolescente , Adulto , Causas de Muerte , Femenino , Accesibilidad a los Servicios de Salud , Humanos , Jamaica/epidemiología , Edad Materna , Embarazo , Complicaciones del Embarazo/mortalidad , Atención Prenatal , Factores de Riesgo
9.
Pediatr Pathol ; 10(5): 729-42, 1990.
Artículo en Inglés | MEDLINE | ID: mdl-2235759

RESUMEN

Babies with major malformations were identified during the Jamaica Perinatal Morbidity and Mortality Survey. They were found in 96 (8.6%) of 1112 perinatal and neonatal deaths coming to necropsy and in 28 (2.6%) of 1085 no so examined. The central nervous system was most commonly affected, followed by the renal, gastrointestinal, and cardiovascular systems in decreasing order of frequency. Many infants had abnormalities in more than one system and 10 malformation syndromes/sequences were identified. Although at the present time, major malformations make only a small contribution to perinatal and neonatal mortality in Jamaica, their importance will increase when deaths from other causes, such as birth asphyxia, decline. The type of malformation currently fatal in a particular population is relevant when planning diagnostic and surgical services for neonates and infants. It is also important to any discussions about provision of prenatal diagnostic services.


Asunto(s)
Anomalías Congénitas/mortalidad , Muerte Fetal , Mortalidad Infantil , Anomalías Múltiples/mortalidad , Vasos Sanguíneos/anomalías , Huesos/anomalías , Sistema Nervioso Central/anomalías , Anomalías Congénitas/embriología , Anomalías del Sistema Digestivo , Cardiopatías Congénitas/mortalidad , Humanos , Recién Nacido , Jamaica , Riñón/anomalías , Pulmón/anomalías , Músculos/anomalías , Sistema Urinario/anomalías
10.
Acta Obstet Gynecol Scand ; 68(7): 581-7, 1989.
Artículo en Inglés | MEDLINE | ID: mdl-2631524

RESUMEN

Socioeconomic factors relating to all maternal deaths identified during the 12 months of the Jamaican Perinatal Morbidity and Mortality Survey were compared with a control population of over 10,000 women. The maternal mortality rate was 11.5 per 10,000 livebirths. Initial analyses revealed (a) that the risk of maternal death declined with increasing maternal education level, (b) that mothers who lived in households with direct pumped water and/or flush toilets enjoyed a reduced risk; (c) mothers who were themselves the major wage earner and (d) those living in households where the major wage earner and source of income was an agricultural worker or farmer were at increased risk of maternal death. A previous analysis showed that the mother's age, her parity and variables indicating access to medical care were important. Logistic regression showed that only maternal age and toilet facilities were independently associated with maternal mortality.


Asunto(s)
Mortalidad Materna , Femenino , Vivienda/normas , Humanos , Jamaica , Embarazo , Complicaciones del Embarazo/mortalidad , Factores de Riesgo , Factores Socioeconómicos
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