{"title":"Pre-eclampsia in a second pregnancy.","authors":"D M Campbell, R Carr-Hill, A E Orisaseyi","doi":"10.3109/10641958309006088","DOIUrl":"https://doi.org/10.3109/10641958309006088","url":null,"abstract":"<p><p>The incidence of pre-eclampsia in a second pregnancy has been studied in 6,637 women for Aberdeen City whose pregnancies occurred between 1969 and 1978. The rate of pre-eclampsia in second pregnancy is less than in first pregnancy, but this is altered by the outcome of the first pregnancy with reference to length of gestation, occurrence of pre-eclampsia and abortion.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 2","pages":"303-6"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309006088","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17922083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A clinical follow-up study of 260 women with hypertension in pregnancy.","authors":"A Svensson, B Andersch, L Hansson","doi":"10.3109/10641958309023462","DOIUrl":"https://doi.org/10.3109/10641958309023462","url":null,"abstract":"<p><p>In 1969-73, 260 women had pre-eclampsia or hypertension in pregnancy. 237 were examined 7-12 years later. 172 were found to be normotensive, 24 were classified as having borderline hypertension while 62 had hypertension (antihypertensive treatment or BP greater than or equal to 160/100 mm Hg). Late hypertension was more often found after severe pre-eclampsia and gestational hypertension than after mild pre-eclampsia. Hypertension preceding pregnancy was more common with severe pre-eclampsia. A family history of hypertension and repeated hypertensive pregnancies seem to predispose for later hypertension.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 1","pages":"95-102"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309023462","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17922984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R W O'Shaughnessy, G D Scott, J D Iams, F P Zuspan
{"title":"Plasma catecholamines in normal pregnancy and in pregnancies complicated by mild chronic hypertension.","authors":"R W O'Shaughnessy, G D Scott, J D Iams, F P Zuspan","doi":"10.3109/10641958309023464","DOIUrl":"https://doi.org/10.3109/10641958309023464","url":null,"abstract":"<p><p>Plasma epinephrine and norepinephrine were measured throughout pregnancy in an ambulatory population of normal and untreated chronically hypertensive pregnant women. There was no significant difference between trimesters for plasma epinephrine, norepinephrine, or the ratio epinephrine/norepinephrine in either the normal or chronically hypertensive group. In the first trimester of pregnancy, women with chronic hypertension demonstrated a significantly higher plasma norepinephrine and a significantly lower epinephrine/norepinephrine ratio than normal women.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 1","pages":"113-21"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309023464","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17923169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P A Taufield, M Suthanthiran, K Ales, M Druzin, L M Resnick, J H Laragh, K H Stenzel, A L Rubin
{"title":"Maternal-fetal immunity: presence of specific cellular hyporesponsiveness and humoral suppressor activity in normal pregnancy and their absence in preeclampsia.","authors":"P A Taufield, M Suthanthiran, K Ales, M Druzin, L M Resnick, J H Laragh, K H Stenzel, A L Rubin","doi":"10.3109/10641958309023465","DOIUrl":"https://doi.org/10.3109/10641958309023465","url":null,"abstract":"The hypothesis that aberrant maternal-fetal immunity might lead to the development of preeclampsia was examined using mixed lymphocyte culture reactions (MLC) as an in vitro analogue of maternal-fetal immunity. Maternal lymphocytes and serum from five normal pregnant women differed significantly from lymphocytes and serum from five preeclamptics. Maternal cells from normal pregnancy responded appropriately to unrelated control cells, but demonstrated selective hyporesponsiveness to fetal cells in the MLC. Serum from normal pregnancy suppressed MLCs when maternal cells were responder cells (RC) and maternal cells or fetal cells were stimulator cells (SC), and did not inhibit MLCs where maternal cells were RC and control cells were SC. Maternal lymphocytes and serum from preeclamptics did not demonstrate cellular hyporesponsiveness or humoral suppressor activity. Our findings support the notion that specific cellular hyporesponsiveness and humoral suppressor activity is responsible for normal pregnancy; absence of such adaptive immunity might lead to the development of preeclampsia.","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 1","pages":"123-31"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309023465","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17287501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D Dubois, J Petitcolas, B Temperville, A Klepper, P Catherine
{"title":"Beta blocker therapy in 125 cases of hypertension during pregnancy.","authors":"D Dubois, J Petitcolas, B Temperville, A Klepper, P Catherine","doi":"10.3109/10641958309023458","DOIUrl":"https://doi.org/10.3109/10641958309023458","url":null,"abstract":"<p><p>Over a period of 4 years, a team of obstetricians and nephrologists have used beta-blockers in the treatment of hypertension in high risk pregnancies. One hundred and twenty one patients (125 pregnancies) were treated with this new therapeutic approach: Acebutolol (56 cases), Pindolol (38 cases) and Atenolol (31 cases) were used. In our group of patients, 56% (70/121) had a previous record of hypertension. Treatment was started when diastolic pressure reached 90 mmHg. The mothers showed excellent tolerance and in 95% of cases blood pressure was controlled in a satisfactory manner. Three groups of new-born infants were defined. In 20 infants, the weight was less than 2.5, in 15 infants between 2.5 and 2.8 kg, and in 90 infants more than 2.8 kg. There was no evidence of low Apgar scores, bradycardia or hypotension in the infants. The importance of team management of the patient is emphasised.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 1","pages":"41-59"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309023458","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17201346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F Broughton Pipkin, J C Hunter, P M O'Brien, L J Sant-Cassia, S R Turner
{"title":"Effects on the renin-angiotensin system of the administration of prostaglandin E1 and E2 in second trimester human pregnancy.","authors":"F Broughton Pipkin, J C Hunter, P M O'Brien, L J Sant-Cassia, S R Turner","doi":"10.3109/10641958309006083","DOIUrl":"https://doi.org/10.3109/10641958309006083","url":null,"abstract":"<p><p>We have measured evoked changes in plasma renin concentration (PRC), plasma renin substrate (PRS) amd plasma aldosterone concentration (ALD) during the infusion of angiotensin II (AII) with and without the simultaneous administration of prostaglandin E2, 5 micrograms min-1 i.v. (PGE2) or prostaglandin E1, 15 ng kg-1 min-1 (PGE1). Experiments have been carried out using PGE2 in 20 patients, and in 5 patients to date with PGE1. AII alone (16 ng kg-1 min-1 i.v.) significantly reduced PRC in both groups of patients without altering PRS, while ALD concentrations more than doubled. The infusion of PGE2 stimulated basal PRC; PGE1 at the dose used did not alter PRC. Neither prostaglandin altered basal RS or ALD concentrations. When AII was infused simultaneously, PRC was again suppressed, in the presence of PGE2. However, only minimal feedback suppression occurred when PGE1 was being used. Furthermore, AII was still associated with a more than two-fold rise in ALD concentration when given together with PGE2, but the rise was considerably smaller and not significant in the presence of PGE1. PGE2 is a known stimulus to renin secretion, apparently acting directly at the juxtaglomerular apparatus. These preliminary results suggest that while a similar mechanism exists in second trimester human pregnancy, PGE1 may have a different effect. The apparent blockade of the normal feedback suppression of PRC in the presence of increased PGE1 concentrations by raised concentrations of AII is especially interesting.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 2","pages":"233-45"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309006083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17408243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lipoxygenase activity in human uterine and intrauterine tissues: new prospects for control of prostacyclin production in pre-eclampsia.","authors":"S A Saeed, M D Mitchell","doi":"10.3109/10641958309023463","DOIUrl":"https://doi.org/10.3109/10641958309023463","url":null,"abstract":"<p><p>The formation of lipoxygenase metabolites by human uterine and intrauterine tissues was evaluated using [1-14C]arachidonic acid (AA) as substrate. The major lipoxygenase product synthesized by human amnion, decidua vera and placenta was identified as 12-hydroxy-5,8,10,14-eicosatetraenoic acid (12-HETE); smaller amounts of 5-HETE and 5-HETE (lactone form) were also formed. In chorion laeve only a trace amount of 12-HETE was detected. Human myometrium and cervical tissue converted [1-14C]AA to 5-HETE and 12-HETE in almost equal amounts. The formation of lipoxygenase products in all tissues was markedly inhibited by nordihydroguaiaretic acid (NDGA) an inhibitor of lipoxygenase activity and slightly stimulated or inhibited by indomethacin, an inhibitor of cyclooxygenase activity. These results are indicative that uterine and intrauterine tissues are probably potential sources of lipoxygenase products during pregnancy and parturition. Since 12-hydroperoxy-eicosatetraenoic acid (12-HPETE), the labile precursor of 12-HETE potently inhibits prostacyclin biosynthesis, our findings are suggestive of the possibility that aberrant lipoxygenase activities may contribute to the complications of pre-eclampsia.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 1","pages":"103-11"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309023463","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17469153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evans Blue disappearance rate in normal and pre-eclamptic pregnancy.","authors":"D M Campbell, A J Campbell","doi":"10.3109/10641958309023468","DOIUrl":"https://doi.org/10.3109/10641958309023468","url":null,"abstract":"<p><p>The disappearance rate of intravenously injected Evan's Blue dye from the circulation (EBDR) has been studied in 21 normotensive primigravidae and 23 primigravidae with proteinuric pre-eclampsia. The EBDR is faster in those with pre-eclampsia and results in differences in plasma volume in pre-eclamptics depending on the method of calculation. The EBDR correlates with serum albumin concentration and total body water in pre-eclamptics, but not in normotensive pregnancies.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 1","pages":"163-9"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309023468","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17922979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Prostaglandins, angiotensin and blood pressure in pregnant rabbits.","authors":"T J Sheehan, F Broughton Pipkin, P M O'Brien","doi":"10.3109/10641958309006089","DOIUrl":"https://doi.org/10.3109/10641958309006089","url":null,"abstract":"A total of 24 rabbits between days 26–29 gestation (term 31 days) were studied acutely. Five does had been pretreated with oral doses (40 mg p.d.) of a prostaglandin synthetase inhibitor (Flurbiprofen) since day 7 of gestation. Rabbits were anaesthetised with sodium phenobarbitone, 30 mg kg−1, and breathed spontaneously. The pressor response to stepwise increments of infused angiotensin II (AII) over the range 16–64 ng kg−1 min−1 was determined in all animals. The 19 does which had not received Flurbiprofen were then subdivided into 4 groups, receiving infusions either of normal saline, 0.1 ml min−1 (n=6) or prostaglandin E1 (PGE1) at 10 ng kg−1 min (n=4), 20 ng kg−1 min (n=5) or 50 ng kg−1 min−1 (n=4). The infusions of AII were then repeated during the additional infusion.The administration of Flurbiprofen was associated with increased basal systolic and diastolic blood pressures. The doses of AII given evoked clear and consistent increases in both systolic and diastolic blood pressure. The previous admi...","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 2","pages":"307-15"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309006089","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17408246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The value of the mean arterial blood pressure in the second trimester (MAP-2 value) as a predictor of pregnancy-induced hypertension and preeclampsia. A preliminary report.","authors":"T Oney, H Kaulhausen","doi":"10.3109/10641958309006081","DOIUrl":"https://doi.org/10.3109/10641958309006081","url":null,"abstract":"<p><p>In 200 healthy nulliparous women the mean arterial blood pressure in the second trimester (MAP-2 value) was calculated. 85 women (42 %) had a MAP-2 value of greater than or equal to 90 mmHg (positive test result), but only 27 women (32 %) developed a hypertensive complication. Conversely, 113 of the 115 (98 %) women with a negative test result (MAP-2 value less than 90 mmHg) remained normotensive. Only two women of this group (2 %) later showed a mild pregnancy-induced hypertension. Thus, the MAP-2 value has a high sensitivity (93 %) and a high predictive value of negative test results (98 %). On the other hand, there is a high rate of false-positive results (68 %) and thus a low predictive value of positive test results (32 %). It is concluded that the MAP-2 value is a simple method for selecting pregnant women who should be examined with other more specific predictive tests. Alternatively, weekly measurements of blood pressure are recommended for early diagnosis of hypertensive disorders of late pregnancy in all women with a MAP-2 value of 90 mmHg or more.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 2","pages":"211-6"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309006081","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17922079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}