{"title":"Urine dopamine during normotensive and hypertensive pregnancies and the puerperium.","authors":"R Huss, K W Hancock, G F Cope, M R Lee","doi":"10.3109/10641958309006090","DOIUrl":"https://doi.org/10.3109/10641958309006090","url":null,"abstract":"Urinary excretion of dopamine, sodium and creatinine have been studied during pregnancy and the puerperium in three groups of women, normotensive, pre-eclamptic and those exhibiting gestational hypertension. Differences in the pattern of dopamine and salt excretion are evident in the two hypertensive groups and lend support to the concept that women who develop gestational hypertension have a defect in the mobilisation of dopamine similar to that observed in males with essential hypertension.","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 2","pages":"317-24"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309006090","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17922084","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, E M Symonds, G D Lamming, F A Jadoul
{"title":"Renin and aldosterone concentrations in pregnant essential hypertensives - a prospective study.","authors":"F Broughton Pipkin, E M Symonds, G D Lamming, F A Jadoul","doi":"10.3109/10641958309006085","DOIUrl":"https://doi.org/10.3109/10641958309006085","url":null,"abstract":"<p><p>Serial blood samples were obtained throughout pregnancy from 11 women with essential hypertension (EHT). Seven were treated with labetalol (Trandate) and 4 with alpha -methyl dopa (Aldomet). Nine patients were well-controlled throughout pregnancy. Their mean plasma renin concentrations (PRC) followed the profile determined in 18 normal patients studied serially. They remained in the upper normal range until the last month, when both treatment groups showed a fall in PRC. Mean plasma aldosterone (ALD) also followed a normal profile until late gestation when it too showed a sharp fall. Of the two patients who developed superimposed PIH, one, who received labetalol, developed severe hypertension at 35 weeks, requiring delivery. Although PRC increased early in this pregnancy, ALD did not, remaining low throughout. Serum potassium [K+] measurements were also very low in this patient. The second patient only became hypertensive at 40 weeks and had PRC and ALD profiles resembling those in the successfully treated EHTs. There was a strong positive correlation throughout between serum potassium and ALD measurements (p less than 0.001) but none between PRC and ALD. This latter agrees with the known lack of correlation between PRC and ALD in normal pregnancy and may suggest that changes in electrolyte balance are more important stimuli to ALD secretion during pregnancy.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 2","pages":"255-69"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309006085","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17408244","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 effects of anesthesia and mode of delivery on the parameters of the renin-angiotensin system.","authors":"C A Samaras, F Broughton Pipkin, E M Symonds","doi":"10.3109/10641958309023461","DOIUrl":"https://doi.org/10.3109/10641958309023461","url":null,"abstract":"<p><p>Paired maternal venous (MV) before (P1) and after (P2) general anesthesia, cord venous (CV) and cord arterial (CA) blood was taken from two groups of primagravid women, one delivered vaginally and the other by elective lower segment Caesarian section (ELSCS). ACTH, Cortisol (CoSol) Aldosterone (Aldo) Plasma Renin Activity (PRA) Plasma Renin Concentration (PRC) Angiotensin II (AII) Solium (N alpha) and Potassium [K]+ were measured in both study groups. Of the various hormones studied, all but cortisol were raised in the P2 sample with only ACTH and AII achieving significant increase. A number of significant positive correlations was found between P1 and P2 samples as well as between the hormones themselves. Four of the vaginally delivered group received epidural analgesia and demonstrated significantly higher levels of ACTH and CoSol in the CV sample. A comparison of the studied variables between the two groups showed a significant decrease in the ELSCS group of ACTH and CoSol in the MV sample, of ACTH, CoSol, PRC in the CV sample, and of CoSol in the CA sample. Of all the parameters, studied, only [K]+ together with Aldo was found to be elevated in the CV sample of the ELSCS group but only [K]+ achieved significant increase.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 1","pages":"83-93"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309023461","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17368539","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":"Observations on clotting activity during pre-eclampsia.","authors":"C D Lox, M M Dorsett, R M Hampton","doi":"10.3109/10641958309006078","DOIUrl":"https://doi.org/10.3109/10641958309006078","url":null,"abstract":"<p><p>Patients with documented pre-eclampsia of pregnancy were utilized on this study. Various clotting factor activities were measured and these included the prothrombin time (PT), partial thromboplastin time (APTT), fibrinogen (FIB), and clotting factors II, V, VII, VIII, X and XII plus the platelets. Statistical analysis of the data indicates that the activity of many clotting factors was significantly changed due to pre-eclampsia, in general, being elevated over normal pregnant controls. This was primarily reflected in the common pathway portion of the clotting cascade.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 2","pages":"179-90"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309006078","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17469154","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}
G H Weenink, P E Treffers, P Vijn, M E Smorenberg-Schoorl, J W ten Cate
{"title":"Plasma antithrombin III levels in pre-eclampsia.","authors":"G H Weenink, P E Treffers, P Vijn, M E Smorenberg-Schoorl, J W ten Cate","doi":"10.3109/10641958309023467","DOIUrl":"https://doi.org/10.3109/10641958309023467","url":null,"abstract":"<p><p>In a prospective study plasma AT III was determined in 2423 samples obtained from 653 women during pregnancy and post partum. The women were allocated to groups, according to the highest diastolic blood pressure, in the third trimester. AT III levels were normal throughout pregnancy, during labour and after vaginal delivery, except in 57 women with pregnancy induced or aggravated hypertension. We present evidence that AT III depression in pre-eclampsia is caused by increased consumption. AT III levels correlate with maternal morbidity as revealed by hepatorenal damage. A weak but significant correlation of AT III and platelets with placental infarction was demonstrated. Proteinuria was the best predictor of fetal outcome. AT III plasma levels increased the number of correct predictions. Following vaginal delivery AT III plasma levels rapidly returned to normal values.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 1","pages":"145-62"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309023467","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17922977","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":"Hemodynamic changes after chronic pindolol administration in pregnant renal hypertensive rats.","authors":"Y Lundgren, U Ljungblad, K Karlsson","doi":"10.3109/10641958309023454","DOIUrl":"https://doi.org/10.3109/10641958309023454","url":null,"abstract":"<p><p>The aim of the present study on pregnant renal hypertensive rats was to investigate the effects on central hemodynamics and uteroplacental blood flow after chronic administration of pindolol, a nonspecific beta-adrenergic receptor blocking agent with intrinsic beta-stimulatory effect. Renal hypertension was induced by partial clamping of both renal arteries four weeks before pregnancy. Pindolol was administered with the food during the entire pregnancy period. Two to four days before expected delivery mean arterial pressure, heart rate, cardiac output, (dye-dilution technique) and utero-placental blood supply (microsphere technique) were determined. The chronic pindolol treatment reduced heart rate by 25 per cent while both mean arterial pressure and cardiac output remained unchanged. However, blood flow to uterus and placentae was reduced by 43 and 64 per cent, respectively, after pindolol treatment. Clinical as well as experimental studies (15, 16) demonstrate a reduced utero-placental blood supply when pregnancies are complicated by hypertension. As pregnancies with severe hypertension are associated with an increased frequency of intrauterine growth retardation and intrauterine asphyxia the present results indicate that the combination of hypertension and long-term treatment with beta-blockers might reduce utero-placental blood flow enough as to seriously interfere with fetal oxygen supply thereby increasing the risk of intra- and extra-uterine asphyxia.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 1","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309023454","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17923168","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":"Renal histology and pregnancy performance in systemic lupus erythematosus.","authors":"L D Devoe, G L Loy, B H Spargo","doi":"10.3109/10641958309006091","DOIUrl":"https://doi.org/10.3109/10641958309006091","url":null,"abstract":"<p><p>Previous reports indicate that maternal and fetal outcome in pregnancies complicated by systemic lupus erythematosus (SLE) may be strongly influenced by the presence of renal disease. As the relationship between renal histology and clinical function in SLE is not consistent, prospective data on the outcomes of such pregnancies would aid patient counselling. Fifteen women with SLE had 18 pregnancies subsequent to renal biopsies, performed from 3 months to 8 years prior to conception. Their renal function was evaluated before, during and after pregnancy. Fourteen of 15 patients had evidence of renal involvement, based on by light and electron microscopic sections: 7 had mesangial involvement (WHO Class II); 5 had active focal or diffuse glomerulonephritis (Classes III and IV); two had membranous involvement (Class V); 1, no evident disease. Perinatal outcome was similar whether lesions were milder (8 continuing pregnancies, 4 term deliveries) or more severe (6 continuing pregnancies, 3 term deliveries). Clinical renal function was normal in all but 3 cases at the beginning of pregnancy; 2 additional patients experienced moderate deteriorations in renal function during pregnancy but recovered normal function in the puerperium. Fetal outcome was abnormal (3 premature deliveries, 1 neonatal death, 1 spontaneous abortion) in all cases where renal function was decreased, while 10 of 13 pregnancies in patients with normal renal function ended in term deliveries. The data suggest that currently preconceptual renal histology provides a less accurate basis for perinatal counselling than does the assessment of clinical renal function.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 2","pages":"325-40"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309006091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17922085","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":"Albumin therapy and intrauterine growth retardation in gestosis.","authors":"T Kaneoka, S Taguchi, K Shirakawa","doi":"10.3109/10641958309023457","DOIUrl":"https://doi.org/10.3109/10641958309023457","url":null,"abstract":"<p><p>Intravenous administrations of albumin, 8-16 g for 5-46 days, to the total doses of 56-736 g (averaged 198 g) were given for 10 patients suffered from both EPH gestosis and hypoalbuminemia averaged 2.4 g/dl. Plasma albumin level, total proteins and A/G ratio were elevated from 2.4 to 3.3 g/dl, from 4.9 to 5.8 g/dl, and from 0.97 to 1.28, respectively in average, following the albumin therapies. Slight decreases in hematocrit, urinary protein, SGOT and SGPT were observed, while BUN increased slightly. Pregnancies were maintained until 36.7 weeks in average. Fourteen newborn infants were delivered in good conditions, mean birth weight being 2,475 g. Four infants (28.6%) were SFDs, while ten (71.4%) were AFDs. Intravenous albumin therapies appear to be safe and effective for those who have both EPH gestosis and hypoalbuminemia.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 1","pages":"29-39"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309023457","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17922982","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}
I Livingstone, P W Craswell, E B Bevan, M T Smith, M J Eadie
{"title":"Propranolol in pregnancy three year prospective study.","authors":"I Livingstone, P W Craswell, E B Bevan, M T Smith, M J Eadie","doi":"10.3109/10641958309006092","DOIUrl":"https://doi.org/10.3109/10641958309006092","url":null,"abstract":"<p><p>We compared propranolol with methyldopa in a randomized prospective study of 28 women with pregnancy associated hypertension. Both drugs were equally effective in controlling maternal hypertension. There was no significant difference in the birthweights of the babies in each group. However one infant born to a mother receiving propranolol had symptomatic hypoglycaemia. The mean peak levels of propranolol, propranolol glucuronide, 4-hydroxypropranolol, and 4-hydroxypropranolol glucuronide were not significantly different in the first, second, third trimesters and at least 3 months post partum. The mean peak plasma level of naphthoxylactic acid however was significantly less in the third trimester compared with post partum levels. Propranolol and its metabolites were found to cross into breast milk with the maximum dose likely to be ingested by the infant as either propranolol or propranolol glucuronide being 7 micrograms of propranolol per 100 g of breast milk, being approximately 0.1% of the maternal dose.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 2","pages":"341-50"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309006092","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17922086","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":"Diagnosis and treatment of pregnancy induced platelet dysfunction.","authors":"R C Goodlin, R B Davis","doi":"10.3109/10641958309023455","DOIUrl":"https://doi.org/10.3109/10641958309023455","url":null,"abstract":"<p><p>Pregnant women with either Type B EPH gestosis or gestosis alone were treated with low dose aspirin if thrombocytopenia were present (platelet counts below 75,000) or had platelet aggregation studies if their platelet counts were above 75,000. Platelet aggregation was usually decreased and aspirin therapy appeared to improve platelet counts. However, it appears that platelet abnormalities are only a secondary defect in the \"gestosis\" process as correction of their thrombocytopenia did not correct their hypovolemia.</p>","PeriodicalId":79209,"journal":{"name":"Clinical and experimental hypertension. Part B, Hypertension in pregnancy","volume":"2 1","pages":"15-9"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3109/10641958309023455","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17922978","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}