Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0020538 (hypertension)
 170,190 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Oral contraceptives (OCs) are a highly effective and widely accepted means of avoiding pregnancy, but they also worsen the major atherogenic cardiovascular risk factors to some degree in all women. Some OC users may suffer severe hypertensive episodes or massive hypertriglyceridemia with pancreatitis. Mild or severe adverse effects could eventually have serious consequences beyond the childbearing years. OC use would appear imprudent for women with a history of hypertension, gestational hypertension and a family history of hypertension. Special care is needed with blacks, diabetics and women with renal disease. OCs may also affect blood clotting, fibrinolysis and platelet adhesiveness. Also, histochemical and anatomical changes in blood vessels have been noted. Both may precipitate thromboembolic events while the OC user is still at the childbearing age and may also contribute to accelerated atherogenesis in subsequent years. There is a need for more specific guidelines for monitoring women on OCs for a worsening of their cardiovascular risk profile and changes in blood coagulation. Indications and contraindications for OC use in relation to the hazard of thromboembolic sequelae need to be more explicitly defined.
 ...
PMID:Oral contraceptive hypertension and thromboembolism. 3 10

A 35-year-old man ingested food contaminated with lindane, an insecticide containing almost pure gamma hexachlorocyclohexane. Grand mal seizures and severe acidemia developed rapidly. The seizures recurred for nearly 2 hours, then ceased. In addition, the patient had muscle weakness and pain, headaches, episodic hypertension, myoglobinuria, acute renal failure and anemia. Pancreatitis developed 13 days after the ingestion of lindane. A muscle biopsy on the 15th day of illness demonstrated widespread necrosis and regeneration of muscle fibres. The patient's condition improved and he was discharged 24 days after the onset of his illness. During the year following the poisoning the patient noted difficulty with recent memory, loss of libido and easy fatigability. One year after lindane ingestion the results of physical examination, including those for muscle power and bulk, were normal.
 ...
PMID:Acute lindane poisoning with development of muscle necrosis. 7 42

Plasma kallikrein releases bradykinin when activated by gram-negative septicemia or irreversible hemorrhagic shock. Pancreatitis releases glandular kallikrein causing hypotension and increased vascular permeability. Bradykinin in the brain produces hypertension. Renal kallikrein is released by high arterial pressure, vasodilators, low doses of noradrenaline, angiotensin II, mineralocorticoids and rapid volume expansion. It has a biphasic relation to sodium excretion. In essential hypertension, kallikrein release into the blood and urine is low and facilitates hypertension. High renin in Bartter's syndrome is balanced by high PGE and kallikrein without hypertension.
 ...
PMID:Kallikrein, kininogen and kinins in control of blood pressure. 37 13

Surgical procedures can be accomplished successfully in patients with uremia provided certain principles of perioperative management are observed. Preoperative dialysis minimizes the biochemical derangements and improves fluid balance, hypertension and hemostasis. Drug schedules are adjusted in consideration of abnormal metabolism in renal disease. Anesthetic management is modified in recognition of potentially adverse or altered activity of anesthetic agents and neuromuscular relaxants. The lightest plane of anesthesia consistent with expeditious operative technique is maintained, since adequate tissue oxygenation is dependent upon increased cardiac output in these invariably anemic patients. Intraoperative hyperventilation sustains the usual compensatory mechanism for uremic metabolic acidosis in the conscious patient, thereby averting increments in serum potassium levels associated with increasing acidosis. Postoperative morbidity may include shunt thrombosis, infection, impaired wound healing, bleeding, pericarditis, pleuritis and pancreatitis. Hypervolemia and hyperkalemia are best managed by early postoperative dialysis. A period of nutritional support using intravenous essential L-amino acids and hypertonic glucose appears promising, especially when gastrointestinal dysfunction exists.
 ...
PMID:Renal failure and the surgeon. 40 28

The pancreases of 77 uremic rats of a Wistar strain were investigated light-microscopically in groups of 5 animals at 11 different times between one day and ten weeks after 5/6-nephrectomy. The serum concentration of urea reached a maximum mean value of 375 mg% after three days; during the stage of chronic uremia the mean value was found to be 175 mg%. The blood pressure increased in the third week after 5/6-nephrectomy and reached in the course of the experiment values of up to 200 mm Hg and more. Histologically, after an initial acute interstitial pancreatitis with focal dystrophies of the exocrine parenchyma which was virtually cured by the 14th day of the experiment, an increasing proliferative-exudative and granulomatous vasculopathy appeared at the end of the third week. This was followed by a perivascular transmitted chronic-fibrosing pancreatitis which may be regarded as a model of vascularly induced pancreatitis. Early damage by uremia and initial pancreatitis, the rapidly developing hypertension and allergical and autoallergical reactions are discussed as aetiological complex for the vascular alterations. The typical findings of the uremic pancreatopathy, well-known in human pathology, are not reproducible.
 ...
PMID:Vascular chronic-fibrosing pancreatitis of the rat after 5/6-nephrectomy. 59 Apr 15

The authors consider the urgent surgery for acute cholecystitis complicated with pancreatitis and with marked bile and pancreatic hypertension to be indicated. In their opinion, the best method of eliminating the cause of duct hypertension in the bile and pancreatic duct system is the transduodenal dissection of the papilla followed with papillocholedochoplasty combined in some patients with plasty of the Wirsung's duct. A separate drainage of the common bile duct and main pancreatic duct according to the Doubilet's method was used. Cholecystectomy was carried out upon all the patients. On patient died of progressive pancreonecrosis.
 ...
PMID:[Transduodenal transpapillar operations in acute cholecystitis complicated by pancreatitis]. 74 66

Diazoxide was given orally to nine hypertensive patients with renal failure and its effect on blood pressure and on glucose metabolism was studied. There was no long-term antihypertensive effect. During treatment insulin release and glucose assimilation after an intravenous glucose load were frankly impaired, but this impairment was reversible after stopping the treatment. Two major complications (diabetic ketoacidosis and pancreatitis) were observed. In view of these observations, the authors are of the opinion that oral diazoxide is contraindicated in the treatment of hypertension in patients with renal failure.
 ...
PMID:Oral diazoxide contraindicated in severe hypertension with renal failure. 81 Feb 87

The causes of maternal deaths in our hospital from 1981 to 1989 were analysed. There were 12,819 live births and 6 maternal deaths during this period, a maternal mortality rate of 46.69/per 100,000. The main cause of maternal deaths was acute fatty liver of pregnancy (50%), and next cardiac disease, acute hemorrhagic necrotic pancreatitis and hemorrhage of subarachnoid space (each 16.67%). There was no death due to obstetric hemorrhage, pregnancy induced hypertension syndrome or ectopic pregnancy. It is suggested that needle biopsy of the liver should be done for pregnant women with jaundice of unknown cause. Pregnant women with cardiac disease should be under the care of both obstetrician and internist in collaboration and cesarean section is indicated when the woman's cardiac function remains at grade 3 or 4.
 ...
PMID:[Causes of maternal death. A 10-year case analysis]. 150 70

A patient with an uncommon cause of portal venous hypertension, pancreatitis, is depicted. The patient had an equally uncommon pattern of symptoms and signs consisting of abdominal pain and lower gastrointestinal hemorrhage caused by colonic varices. A unique treatment, with angiographic placement of an expandable intraluminal stent within the portal vein, was employed to reopen the portal venous system and reduce portal pressure. Relief of bleeding was accomplished and sustained for more than 1 year.
 ...
PMID:Variceal hemorrhage associated with portal vein thrombosis: treatment with a unique portal venous stent. 159 80

One hundred and ninety-three nephrotic children with a total of 271 admissions during the past decade, from 1980 to 1989, were retrospectively reviewed for acute complications and unusual features of nephrotic syndrome. One hundred and forty-nine patients were male, 44 female. Hypertension was found in 41 children (21.2%). Nine patients (4.7%) had a total of 11 episodes of hypovolemic shock. These shock patients had a more severe hemoconcentration (mean hemoglobin concentration 19.6 +/- 1.5 g/dl) and hyponatremia (mean serum sodium 127.5 +/- 8.5 mmole/L). Bacterial infections occurred in 28 children (14.5%) with primary peritonitis in 13, sepsis in 6, cellulitis in 4, urinary tract infection in 4 and osteomyelitis in 1. Almost all infections were caused by gram-negative bacilli. Other complications or features included tetany in 4 (2.1%), thromboembolism in 2 (1.0%), pancreatitis in one (0.5%) and Fanconi syndrome in one (0.5%).
 ...
PMID:Complications of nephrotic syndrome in children. 168 Oct 1


1 2 3 4 5 6 7 8 9 10 Next >>