Information about sexual matters among adolescents according to sex, parent -adolescent communication and religious practices were studied in a sample that is representative of school-children from various socioeconomic levels at metropolitan Santiago, Chile (n = 1.782). Girls get more information from mothers than do boys (p < 0.0001) which in turn obtain more information from teachers (72.3%), father (50.8%), friends (50.3%) and communication media (39.8%) than girls. Females usually know less about age at wich both sexes are able to procreate and become responsible parents than boys (p < 0.00001). Only about one half of girls and one third of boys regularly practice religion (p < 0.0001). These results may be related with persistent high rates of pregnancies in adolescent girls in spite of generally declining biith rates and may indicate a need to provide sexual education, which should be given by mothers and teachers, specially among girls. (Key words: sex education, gender, adolescents.) La adolescencia es el periodo del desarrollo transforman al niflo en un adulto con capacidad del ser humano en el que se producen una serie reproductiva 1 ' 2 . Algunos de los cambios que imde cambios fisicos, psiquicos y sociales, que pactan al adolescente son los de supropiocuerpo, porque generalmente son esperados, pero muchas veces sin saber las funciones que traen apareja-1. Institute de Nutricion y Tecnologia de Alimentos, das > tales como la capacidad de engendrar 0 Universidad de Chile, procrear un hijo. Volumen 61 Numero 2Educacidn sexual \ 03

INl'RAViWl'RICOIAR HPDRRHPI;E A5 A CAUSE OF tIYDmI.Pf1AUIS IN P~~R N S . B u s t o s , R .Uruguayan Center of Perhatology (CUP), mntevideo,Uruguay.Ultrasonography has been widely used to d e t e c t i n t r a c r a n i a l disease, s p s c i a l l y i n t r a c r a n i a l herorrhage, in p r m t u r e m t c s and h a been shzm to be highly r e l i a b l e i n this group of patients. This r r r t k d has a l s o been uscd f o r t h e diagnasis and f o l l w u p of hydrooephalus and m l t i f o c a l nocrosis of the white m t t e r ( p e r i v e n t r i c u 1 a r leukcmalacia), both of W c h a r e serious oarplications of intraventricular IV a d cerebral hmrrhaqes.Eighty seven i n f a n t s adntted to the Newbsrn Care Unit of the Uruquayan Center of Pcrinatology £ran April, 1984 through Cecember, 1985 were studied. Ultrasongraphy was p e r f o m in a l l nmnates with b i r t h w i g h t l e s s than 1500 g and in a l l cases with s u s p c t e d I/V hem3rrhage o r hydroce@lus regardless of b i r t h w i g h t .TVH was i d e n t i f i e d i n 48% (42 cases) of the total p p u l a t i o n studied.Its s e v e r i t y was grade3 using P a p i l e k c l a s s i f i c a t i o n . m m C U Y \ R / P -a J I A R shock h t r a t l n g the EO r o l e in cardiovascular regulation d~r i n \ l s t r e s s f u l m t i w . Although high p l m t i c canofntraticns of EO x e found i n the f e t u s ard &rn, it is not kncvn whether t h y play a r o bIn a r t e r i a l b l c a l pressure (BP) and h e a r t r a t e (IIR) requlation I n basal conditions. -refore, we d u m c a l l y catheterized 13 f e t a l shfep (0.8-0.9 of gestation) and 6 &rn lant~s (5-12 days o l d ) i n o r d f r t o study i f NIX (bolus 0.5-hq/kg + infusion 20ug/kg x nun x 30min) n d £ y thc basal BP and tiR i n t k f e t u s and newborn. Catheters =re p l m d l n W fenoral a r t e r y and vein and w r o t l d a r t e r y . F i w days a f t e r surgely v.e m n i t o r w l BI' a d tiR 30 minutes k f o r e and a f t e r the NW( injection. 'lllc r e s u l t s wrc (man r SD) : basal mloxone -26Heart r a t e d~d not change during the e x p r i m n t s . nlese r c s u l t s shiw t h a t Fecal excretlcn of enteropathogens was studied i n breastfed newborns (NB) of la, high sccia=conanic levels (SEL) born vaginally or by delivery cesarean section. Within the f i r s t 7 days of l i f e 5 sanples were collected f o r rotavirus detection (ELISA, electronmicroscopy and g e l electrophoresis i n 225 NBs; 5 samples were obtained I n 57 of the 225 NBs f o r enterqxithogenic bacteria (routine laboratoly technicps) ; and J sanples wre collected m 39 of the 225 to identify entercfarasites ( B u r r w ' s t e d u~i q u e ) . Nearly a l l sanples f r m the high SEL were oollected while th Nns =re s t i l l i n the maternity wards; i n the lo* SEL, sarrples obtairrd b e t w e n days 4 and 7 were collected a t hare. At l e a s t one entercpathogen was detected i n 21% of a l l BNs (4.4% r o t a v i m , 14% e n t e r q a t h o g e n i c bacteria ard 2.6% entercparasites) . No s i g n i...

INl'RAViWl'RICOIAR HPDRRHPI;E A5 A CAUSE OF tIYDmI.Pf1AUIS IN P~~R N S . B u s t o s , R .Uruguayan Center of Perhatology (CUP), mntevideo,Uruguay.Ultrasonography has been widely used to d e t e c t i n t r a c r a n i a l disease, s p s c i a l l y i n t r a c r a n i a l herorrhage, in p r m t u r e m t c s and h a been shzm to be highly r e l i a b l e i n this group of patients. This r r r t k d has a l s o been uscd f o r t h e diagnasis and f o l l w u p of hydrooephalus and m l t i f o c a l nocrosis of the white m t t e r ( p e r i v e n t r i c u 1 a r leukcmalacia), both of W c h a r e serious oarplications of intraventricular IV a d cerebral hmrrhaqes.Eighty seven i n f a n t s adntted to the Newbsrn Care Unit of the Uruquayan Center of Pcrinatology £ran April, 1984 through Cecember, 1985 were studied. Ultrasongraphy was p e r f o m in a l l nmnates with b i r t h w i g h t l e s s than 1500 g and in a l l cases with suspcted I/V hem3rrhage o r hydroce@lus regardless of b i r t h w i g h t .TVH was i d e n t i f i e d i n 48% (42 cases) of the total p p u l a t i o n studied.Its s e v e r i t y was grade3 using P a p i l e k c l a s s i f i c a t i o n . m m C U Y \ R / P -a J I A R HRmrmHAQs 7 Nmber 17 Of cases Percentage 7 1Mklicas Griente, F a L l t a d & W c i n a , Univ&sidxl de C h l l f , ~~l l a 16038, Santiago 9, Chile. Nal-(NWO, an antagonist of EO receptors,rovcrts. hypotension rluring shock h t r a t l n g the EO r o l e i n cardiovascular regulation d~r i n \ l s t r e s s f u l m t i w . Although high p l m t i c canofntraticns of EO x e found i n the f e t u s ard &rn, it is not kncvn whether t h y play a r o bIn a r t e r i a l b l c a l pressure (BP) and h e a r t r a t e (IIR) requlation I n basal conditions. -refore, we d u m c a l l y catheterized 13 f e t a l shfep (0.8-0.9 of gestation) and 6 &rn M s (5-12 days o l d ) i n o r d f r t o study i f NIX (bolus 0.5-hq/kg + infusion 20ug/kg x nun x 30min) n d £ y thc basal BP and tiR i n t k f e t u s and newborn. Catheters =re p l m d l n t c fenoral a r t e r y and vein and w r o t l d a r t e r y . F i w days a f t e r surgely v.e m n i t o r w l BI' a d tiR 30 minutes k f o r e and a f t e r the NW( injection. 'lllc r e s u l t s wrc (man r SD) : basal mloxone -26Heart r a t e &d not change during the e x p r i m n t s . nlese r c s u l t s shiw t h a t Fecal excretlcn of enteropathogens was studied i n breastfed newborns (NB) of lcw high sccia=conanic levels (SEL) born vaginally or by delivery cesarean section. Within the f i r s t 7 days of l i f e 5 sanples were collected f o r rotavirus detection (ELISA, electronmicroscopy and g e l electrophoresis i n 225 NBs; 5 samples were obtained I n 57 of the 225 NBs f o r enterqxithogenic bacteria (routine laboratoly technicps) ; and J sanples wre collected m 39 of the 225 to identify entercfarasites ( B u r r w ' s t e d u~i q u e ) . Nearly a l l sanples f r m the high SEL were oollected while th Nns '&re s t i l l i n the maternity wards; i n the lo* SEL, sarrples obtairrd b e t w e ...