background: the aim of this study was to prevent of increasing end tidal co2(et co 2) with changing of vital capacity and respiratory rate, when using of birthing filter in infants. materials and method: in a randomized clinical trial study, ninety four infant' patients were studied in three groups . basic values, such as: peak inspiratory pressure, tidal volume, minute ventilation, respiratory...

crown to heel, crown to rump, weight, gead circumference of normal newborns (m=792) were measured in a hospital in hamadan, iran during two months, in spring, 1995. the mean c.h. for males was 48.2 cm. and for females 47.5 cm. ; the mean c.r. for males was 33.3 cm and for females 32.73 cm.; the mean weight for males was 3.30 kg and for females 2.29 kg and finally the mean head circumference for...

purpose: to compare orbscan ii (o ii) and ultrasound (us) pachymetry in normal and post-lasik eyes. methods: in a comparative prospective study, central corneal thickness (cct) was measured in 168 eyes of 84 normal subjects and 42 eyes without corneal opacity of 21 post-lasik patients by o ii and us. paired t test was used to identify significant differences between the two methods and pearson ...