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Query: UMLS:C0033687 (proteinuria)
 24,015 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The defect in glomerular permeability that leads to proteinuria can be assessed by determining the relative clearance of macromolecules of known but different dimensions, that is, glomerular selectivity. Such estimates can be made using naturally occurring plasma proteins and dextran or polyvinylpyrrolidone injected into the circulation. In preeclampsia, protein and dextran selectivities show good concordance. The proteinuria is intermediate in its selectivity. These findings confirm that proteinuria is glomerular in origin and that the glomerular abnormality is uniform throughout the majority of functioning glomeruli. In abruptio, protein selectivity is very low and dextran selectivity is high. This pattern is seen also in acute ischemic renal failure and suggests that the true glomerular functional defect is actually less severe than in preeclampsia and that much of the protein in the urine in abruptio is postglomerular in origin. The structural lesion in preeclampsia is "characteristic" only in the sense that a number of individual components of glomerular injury, which are themselves commonly seen in other glomerular disorders, occur in a particular balance, and not because of any single unique or specific feature. The important components--that is, endothelial swelling, mesangial cytoplasmic activity, subendothelial deposits, and occational thrombosis of the afferent arterioles--all occur, albeit to a lesser degree, in abruptio placentae, as well as in other glomerular disorders in which intravascular coagulation is a primary cause or plays a major role.
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PMID:Proteinuria and the renal lesion in preeclampsia and abruptio placentae. 100 54

The course of preeclamptic/eclamptic patients may be complicated by HELLP syndrome, a syndrome of intravascular hemolysis (H), elevated liver enzymes (EL) and low platelet count (LP). These patients typically present at early third trimester with epigastric or right upper quadrant pain, nausea and vomiting. They may present without the clinical signs of preeclampsia (hypertension and proteinuria or edema), thus an initial wrong nonobstetric diagnosis is not uncommon. The most frequent maternal complication is intravascular coagulopathy (30%). Placental abruption and acute renal failure are also common. Ten cases of maternal deaths were reported among 295 cases reviewed in the English language literature, while the perinatal mortality rate was 226/1000. The grave prognosis for mother and fetus warrants physician awareness in order to accomplish early diagnosis and proper management. This paper is a review of the literature in English.
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PMID:HELLP syndrome--a syndrome of hemolysis, elevated liver enzymes and low platelet count--complicating preeclampsia-eclampsia. 168 23

Pregnancy-induced hypertension is a disorder of unknown etiology unique to pregnant women. Classic clinical manifestations include hypertension, proteinuria, and edema. Early recognition and proper management of this disease may serve to avoid serious maternal complications. Ultimate maternal treatment depends on delivery of the fetus and placenta. Advanced stages of this disease result in multi-organ system dysfunction that may be life-threatening to the mother and her fetus. Such maternal complications of PIH include severe hypertension, oliguria or anuria, HELLP syndrome, eclamptic seizures, liver rupture, pulmonary edema, cerebral edema, and abruptio placentae. A multidisciplinary approach of the critical care team often will effect a reduction in maternal morbidity and mortality.
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PMID:Management of severe preeclampsia and eclampsia. 174 3

During a 12-year period, 254 cases of eclampsia were managed at this center. Eighty patients (32%) did not have edema, 58 (23%) had "relative hypertension," and 49 (19%) did not have proteinuria at the time of convulsions. Eclampsia developed at less than or equal to 20 weeks in 6 patients and beyond 48 hours post partum in 40 (16%). Convulsions developed in 33 while they were receiving standard doses of magnesium sulfate for preeclampsia during or after birth, and subsequent seizures developed in 36 (14%) after magnesium sulfate therapy was started. There was one maternal death (0.4%) and morbidity was frequent (acute renal failure, 4.7%; pulmonary edema, 4.3%; cardiorespiratory arrest, 3.1%; and aspiration, 2%. The use of multiple drug therapy was associated with significant maternal and neonatal complications. The total perinatal mortality was 11.8%, with the majority of them related to either abruptio placentae or extreme prematurity. These findings emphasize the need for intensive monitoring of women with preeclampsia throughout hospitalization and underscore the importance of maternal stabilization before and during transfer.
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PMID:Eclampsia. VI. Maternal-perinatal outcome in 254 consecutive cases. 240 30

The authors have studied 27 cases of Abruptio Placentae (A.P.) (for an observation time of 15 months). These 27 patients where divided into 3 groups: 6 patients without pregnancy follow-up, 5 with a regular follow-up and 16 with an intensive pregnancy follow-up. In this last group following parameters were studied: blood pressure, proteinuria, uricemia, hematocrit, platelet count, FDP, plasma volume, Fetal (umbilical artery) and Maternal (uterine artery velocities with doppler reclude Fetal heart Rate. The total number of intra uterine death and post natal death remained very high: 15 over 27 cases. However this rate was lower in the intensive group, where 10 fetuses with were delivered safely. Studying the evolution of clinical, biological and ultrasonic parameters during the last month before the AP we tried to establish curves of their mean value (every week for the last 4 weeks and every day for the last week). Almost all parameters showed a late significant variation (in the last week). Two of them were modified in the last two days: (FDP and Fetal heart rate acceleration). Two of them were "positive" (in 60 p. 100 of cases) 3 of 4 weeks before the AP: Maternal Plasma volume decrease, Presence of a Notch on the uterine artery doppler curve. In conclusion fetal or neonatal death after AB remains high and even with an intensive follow-up 30 p. 100 of the cases cannot be predicted.
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PMID:[Compared course of clinical, biologic, echographic and speedometric parameters in retroplancetal hematoma]. 251 Jun 32

A researcher reviewed the January 1984-December 1986 birth and obstetrical records at the University of Nigeria Teaching Hospital in Enugu. During this period, the incidence rate for abruptio placentae was .44% (81/18,215). 56 of these cases were considered mild and 25 were severe. 15/81 cases did not have adequate antenatal care. 49.4% of the cases were in the 26-30 year old age group. The higher the parity of the women the higher the percentage of those with abruptio placentae, e.g., 3.7% for primigravidas and 33.3% for parity or = 5. The leading symptoms included tender uterus (87.7%), abdominal pain (85.2%), and vaginal bleeding (54.3%). Other symptoms included hypertension, shock, and proteinuria. Vaginal delivery accounted for 80.3% of the abruptio placentae births, while cesarean section accounted for 12.4%, vacuum extraction 3.7%, and breech delivery 3.7%. 91.4% of the patients required a blood transfusion with an average of 3 pints of blood/patient. 22.2% of the patients experienced severe postpartum hemorrhage as a result of uterine atony, coagulation failure, or puerperal sepsis. The perinatal mortality rate stood at 58%. None of the 15% of mothers who had severe abruptio placentae had a live infant. 16% of the infants were premature. Since most of the referred patients either did not have any antenatal care or had inadequate antenatal care, it appears that an appropriate measure to reduce the gravity of abruptio placentae would be a wider distribution of excellent antenatal and obstetric management in the rural areas.
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PMID:Abruptio placentae at the University of Nigeria Teaching Hospital, Enugu: a 3-year study. 280 22

Acute renal failure is a most challenging clinical problem when it occurs in pregnancy. It requires an understanding of the normal physiology of the kidney in pregnancy and the natural history of different underlying renal diseases when pregnancy occurs. Because patients with chronic renal disease may present with worsening proteinuria, hypertension, and renal function, these disorders must be excluded from those conditions that cause acute deterioration of renal failure in otherwise normal women during pregnancy. As in all patients who develop acute renal failure, prerenal and obstructive causes must be excluded. Particularly important causes of prerenal azotemia in pregnancy include hyperemesis gravidarum and uterine hemorrhage, especially if it is unsuspected as in abruptio placentae. Infectious causes of acute renal failure in the pregnant woman include acute pyelonephritis and septic abortion. The clinical presentation of both these conditions should be apparent, and appropriate diagnosis and treatment can then be promptly instituted. Renal cortical necrosis is another cause of renal failure that occurs more frequently in pregnancy, and it must be differentiated from the many causes of acute tubular necrosis that may be associated with pregnancy. Those conditions that cause renal failure unique to pregnancy must always be considered when renal function deteriorates in the last trimester or the postpartum period. Severe preeclampsia, acute fatty liver of pregnancy, and idiopathic postpartum acute renal failure may all present similar complications, but the approach to each of these clinical disorders must be individualized. By understanding the causes of renal functional deterioration in pregnancy, a logical differential diagnosis can be established, allowing appropriate therapeutic decisions to preserve both maternal and fetal well-being.
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PMID:Acute renal failure in pregnancy. 305 11

Abruptio placentae occurred in 16 of 132 patients with severe pre-eclampsia who were admitted to an obstetric high-risk ward before 34 weeks' gestation. These 16 patients were compared with those who did not develop abruptio placentae. Systolic and diastolic blood pressure levels, proteinuria and birth weights did not differ significantly between the two groups. Apgar scores were significantly lower in the abruptio placentae group. There were 6 intra-uterine and 2 neonatal deaths in the abruptio placentae group (50% perinatal mortality (PNM] and 3 intra-uterine and 16 neonatal deaths in the other group (18% PNM). Four patients with abruptio placentae presented with abnormal fetal heart-rate patterns and 8 with abdominal pain. No warning signs were present in 3 patients and the fetal heart-rate pattern before delivery was not available in 1 patient. Abnormal fetal heart-rate patterns were present in 5 of the 8 patients who presented with pain. Abruptio placentae occurring in patients with severe proteinuric hypertension carries a high PNM. Frequent monitoring of the fetal heart rate sometimes helps to diagnose fetal distress before the clinical signs of abruption become apparent.
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PMID:Frequent fetal heart-rate monitoring for early detection of abruptio placentae in severe proteinuric hypertension. 338 52

In a prospective study 90 patients who had confirmed abruption of the placenta were compared with a control group. Significantly more patients who had abruptio placentae were unmarried, smoked cigarettes, received no antenatal care, had coitus within the 48 hours preceding delivery, developed intrapartum hypertension and had a lower ponderal index than the controls. More patients with abruptio placentae had proteinuria and antepartum hypertension but statistical significance was not reached. In addition, the incidence of intra-uterine growth retardation was higher in these patients.
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PMID:Risk factors for abruptio placentae. 361 9

Three symptoms define the renovascular syndromes during pregnancy: hypertension, edemas and proteinuria. It is essential to detect them as soon as possible during the antepartal examinations. The directions for treatment consist in simple acts which are easy to perform in overseas conditions. They intend to prevent very serious disorders such as abruptio placentae and eclampsia which should not be found any longer.
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PMID:[Detection and treatment of renovascular syndromes of pregnancy excluding their progressive complications]. 685 26


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