Correlation of blood loss with blood volume and other hematological studies before, during, and after childbirth☆☆☆

摘要: P OSTPARTUM hemorrhage is today a major cause of maternal morbidity and mortality.l, 2 Previous hematologic blood volume studies the normal pregnancy puerperium at Royal Victoria Hospital showed that loss circulating due to childbirth greatly exceeded obstetrician’s estimate. The present study was initiated explain this discrepancy determine in greater detail delivery. Many observers have measured during third stage labor, using receptacles collect. escaping from vagina perineum. Table I demonstrates wide variations found fifteen reported series.3-1” average ranged 150 600 ml. At delivery commonly estimated 200 01’ less by attending obstetrician. Tysoe llowensteinll followed serial changes group women for two months post partum were impressed with marked diminution total red cell after (Fig. 4). In recent years T-1824 dye-hematocrit, carbon monoxide, differential agglutination, radioactive tracer methods determination been applied measurement resulting surgical operations, traumat,ic injuries, battle casualties, gastrointestinal hemorrl~age.l”-‘” A number authors used one or more these measuring volumes puerperium. II composite table computed their data.“, =, z.i, ~3 z7 Although cases each series small, close agreement seems significant,. apparent 810 1,250 These findings suggested active circulation occurring than believed led following studies.