Skin flap survival in rats exposed to environmental stress may be significantly increased as compared to animals accustomed to their new environment for one week, possibly as a consequence of anti-inflammatory actions exerted by stress-induced elevations in plasma corticosterone. These findings emphasize the importance of strictly controlling environmental stress factors in studies of inflammation and tissue damage after surgical skin trauma.

Scandinavian Journal of MEDICINE 81 SCIENCE IN SPORTS ISSN 0905-7188 Incidence, nature and causes of floorball lnJurles Lbfgren 0, Andersson N, Bjbrnstig U, Lorentzon R. Incidence, nature and causes of floorball injuries. Scand J Med Sci Sports 1994: 4: 211-214. 8 Munksgaard, 1994During 1990 and 1991,9% of all sports injuries that required emergency care at the University Hospital of UmeH were caused by floorball. Seventyeight per cent of the injuries were minor (AIS 1) and 21% were moderate (AIS 2). Sprains of the ankle and knee joints were most frequent, constituting 30% and 11% of all injuries, respectively. Licensed players were affected in 14% of all floorball injuries, and 61% of these injuries occurred during a game. We found no difference in seventy or type of injuries between licensed players and recreational players. Our data show that the number of floorball injuries is increasing and that the majority of these 1 0. Ll)fgren, N. Andersson,

No abstract

During the period 1974-1980, all late abortions (greater than 19 completed gestational weeks) (LA), late fetal deaths (LFD) and early neonatal deaths (END) were surveyed in a continuous material of 17813 births with an ascertained gestational age established by early ultrasound fetometry. There was no maternal death during the period. The total perinatal mortality (PM) was 0.98% with an END rate of 0.51%. In about 45% of LFD no diagnosis was found. Intrapartum death was extremely rare as was END caused by asphyxia or infection. In END, death from immaturity constituted the major group in the beginning of the period, while after 1977 lethal malformations was the dominating diagnosis. There was a continuous decrease in Idiopathic Respiratory Distress Syndrome (IRDS) as a cause of END. The proportion of END in extremely premature children showed a constant decrease in the beginning of the period. No difference in sex was found in END except for lethal malformations where there was a significant male preponderance. As a consequence of a more active obstetrical care, some fetuses who would previously have been classified as LA were probably delivered liveborn, extremely premature and appeared as END. The question of where to set the limits for what should be included in PM is thus highly relevant.