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Query: UMLS:C0034063 (pulmonary edema)
 10,665 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The object of this study was to compare the ultrastructure pulmonary effects of the infusion of homologous and heterologous serum albumin solution in the treatment of hemorrhagic shock in baboons. Adult baboons subjected to hemorrhagic shock were resuscitated with either baboon serum albumin, human serum albumin, or Ringer's lactate solution. The lungs were fixed in vivo with potassium pyroantimony, a solution which produces electron dense interstitial precipitation of sodium. The lungs from animals resuscitated with baboon serum albumin showed evidence of interstitial edema, including dispersion of collagen fibers, interstitial smudging and increased interstital sodium concentrations. Similar changes were seen following human serum albumin infusions. Lung tissue from animals treated with Ringer's lactate solution showed minimal changes from normal. These results suggest that interstitial pulmonary edema develops after either homologous or heterologous serum albumin infusion in the treatment of hemorrhagic shock in baboons.
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PMID:Changes in lung ultrastructure following heterologous and homologous serum albumin infusion in the treatment of hemorrhagic shock. 10 80

The renal response to left atrial balloon inflation in normal dogs was compared with that in dogs with chronic congestive heart failure (CHF). CHF was induced by the production of an aortocaval fistula below the level of the renal arteries. CHF dogs showed elevated left ventricular end-diastolic pressure, enlarged hearts, a depression of myocardial contractility, pulmonary edema, ascites, and peripheral edema. They also showed significant decreases in urine flow, creatinine clearance, para-aminohippurate clearance, sodium and potassium excretion, fractional sodium excretion, osmolar clearance, arterial blood pressure, and heart rate. Balloon distension of the left atrium evoked a significant increase in urine flow and free-water clearance in the normal group. The reflex nature of this response was indicated by its blockade after bilateral cervical vagotomy. In contrast, the CHF group did not exhibit significant changes in urine flow or free-water clearance during balloon inflation. Plasma antidiuretic hormone (ADH) was significantly elevated in the CHF group; however, balloon distension reduced plasma ADH in both groups of dogs. Plasma renin activity was significantly elevated in the CHF dogs and was not changed by balloon distension in either group of dogs. It is concluded that animals with high-output CHF do not exhibit the atrial-diuretic reflex in spite of their ability to reduce ADH levels by atrial distension.
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PMID:Renal effects of left atrial distension in dogs with chronic congestive heart failure. 43 20

The first phase of accidental drowning begins with asphyxia, due to either laryngospasm (10-15 percent of cases) or water aspiration. The second phase is characterized by water and electrolyte changes in the blood. The physiopathological modifications caused by drowning in fresh water differ from those of drowning in sea water. The hypotonic fresh water quickly diffuses in the bloodstream. The consequences are, in many cases, hypervolemia with pulmonary edema, hemolysis, hyperkalemia with risk of ventricular fibrillation, diminution of hemoglobin, and a relative decrease in plasma concentration of Na, Cl, Ca, and albumin. Further, inactivation and washing out of the anti-atelectasis factor from the alveoli by fresh water facilitate the formation of atelectasis. In cases of accidental drowing in sea water the osmotic gradient is in inverse: the electrolytes of aspirated salt water diffuse in the circulation, whereas the blood serum and the plasma albumin pass into the alveoli. Acute pulmonary edema often follows these pathological changes. Hypovolemia with circulatory collapse, hemoconcentration with rise in hemoglobin, hematocrit, sodium, potassium and albumin, and, finally, an elevated risk of thromboembolism due to increased blood viscosity, represent further complications. On the other hand, ventricular fibrillation is rare, hemolysis is absent and atelectasis usually does not occur.
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PMID:[Physiopathology of accidental drowning]. 112 62

Ten normal healthy male subjects between 20-30 years of age were initially examined at Delhi (200 m) and thereafter air-lifted to an altitude of 3,500 m. Excretion of sodium, potassium and chloride in urine and their plasma level were determined at sea level (SL) and daily at high altitude (HA) for 4 d. At HA, four subjects developed high-altitude pulmonary edema (HAPE), four remained normal, and two suffered from acute mountain sickness. The results on normals and HAPE are presented. There was increased excretion of potassium at HA in both groups resulting in reduction of plasma level. The sodium and chloride excretion was also increased in normals at HA irrespective of urine volume. In HAPE cases, the sodium and chloride excretion was related to urine output. With the retention of fluid, the excretion of these ions in urine was diminished without a parallel change in plasma levels.
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PMID:Electrolyte changes at 3500 m in males with and without high-altitude pulmonary edema. 114 75

Searching for an experimental condition to produce pulmonary edema of uniform high grade severity in rabbits, five different doses of epinephrine (38,60, 100, 160 and 260 mug/ml) were infused at a rate of 0.29 ml/min for 20 min into the femoral vein of fed and fasted animals. Body temperature was maintained at 38 to 40 degrees C. The incidence of pulmonary edema was not dose-dependent, and was approx. 70% by the administration of 60 to 260 mug/ml of epinephrine solutions. In general, the edema was more severe in the fed group than in the fasted. The highest dose of epinephrine was often fatal in the fasted group. One hundred mug/ml (approx. 10 mug/kg/min), fed was regarded as a favourable condition for the experiment. The amounts of lung lipids increased in edema (+) cases of the fed groups. The plasma potassium level was elevated in proportion to the dose of epinephrine. The clotting time of blood was markedly prolonged in edema (+) rabbits. The significance of these observations was discussed in regard to the mechanism of epinephrine-induced pulmonary edema.
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PMID:Incidence of epinephrine-induced pulmonary edema in rabbits and accompanying metabolic changes. 122 53

We have used an isolated rat lung model to compare the quality of preservation of different flush techniques with each other and with topical cooling alone. Lung injury was assessed by recording lung weights after reperfusion after 4 and 6 hours of ischemia. The flush solutions studied were intracellular (Collins-Sacks), traditional extracellular, extracellular with low potassium plus dextran, and extracellular containing blood, mannitol, albumin, and prostacyclin (Wallwork's solution). Flushing with Wallwork's solution before both 4 and 6 hours of ischemia gave superior protection from lung edema after reperfusion over all the other methods.
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PMID:Extracellular flush solution that contains blood, mannitol, albumin, and prostacyclin protects rat lungs from six hours of ischemia. 175 65

This retrospective study comprises 234 cases of accidental hypothermia (core temperature less than 35 degrees C) hospitalized in 95 Swiss clinics between 1980 and 1987. The most frequent accidents were alpine (n = 78) in origin, followed by cold exposure after injuries (n = 63) and suicide attempts (n = 43). Hypothermia was induced by cold air in 129 cases and by water in 47 cases. Patients were divided evenly between the degree of hypothermia: 75 mild (32-35 degrees C), 79 moderate (28-32 degrees C) and 66 severe (less than 28 degrees C). Among the survivors the coldest patient had a core temperature of 17.5 degrees C and the longest cardiac arrest with a favourable outcome lasted 4.75 hours. Out of the 234 patients 68 died (29%). We assessed all variables relative to outcome, in particular the mechanism of the accident, the mode of cooling, temperature, circulation, age and sex, underlying diseases, rewarming methods, medication and complications during the hospital course. All variables were tested in two multiple regression analysis models (retrospective model n = 181: prospective model n = 128) with regard to significance (p less than 0.05) and survival. Results are expressed with ODD's ratios (OR). The negative survival factors are asphyxia (OR 30), invasive rewarming methods (OR 20), slow rate of cooling (OR 10), asystole on arrival (OR 9), pulmonary edema or ARDS during hospitalization (OR 8), elevated serum potassium (OR 2/mmol/l) and age (OR 1.03/year). The positive survival factors are rapid cooling rate (OR 10), presence of ventricular fibrillation in cardiac arrest patients (OR 9) and presence of narcotics and/or alcohol during hypothermia (OR 5).(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Accidental hypothermia in Switzerland (1980-1987)--case reports and prognostic factors]. 188 13

Twenty-four patients first seen with hypertensive crises during pregnancy were studied by continuous electrocardiographic monitoring for a period of 24 hours to detect the presence of serious ventricular arrhythmias. Three patients were excluded from analysis because of low serum potassium levels. Thirteen of the remaining 21 patients had ventricular tachycardia on subsequent analysis of the electrocardiogram. These arrhythmias subsided after induction of anesthesia when blood pressure control was optimal. This finding may be implicated in the pathogenesis of pulmonary edema and sudden death in these patients.
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PMID:Continuous electrocardiographic monitoring in hypertensive crises in pregnancy. 199 97

A variant of hepatorenal syndrome occurring in patients with chronic congestive heart failure following an episode of cardiogenic pulmonary edema, and in the absence of hypotension, is described. This was observed in 13 patients during an eleven-year period. The clinical picture is characterized by hepatic injury and functional renal impairment. Increase of serum glutamic oxaloacetic transaminase levels as high as 2100 IU; prolongation of prothrombin time; elevation of serum bilirubin, creatinine, blood urea nitrogen, and potassium levels; decrease in urinary sodium excretion; and a normal urinary sediment are the salient laboratory abnormalities of this entity. Treated with conventional medication, the patients' course was fatal in 4 cases. When the splanchnic vasodilator dopamine was added to the patients' management, 5 of 9 patients recovered. Cardiogenic hepatorenal syndrome is a severe but potentially reversible complication of heart failure. The apparently beneficial effect of low-dose dopamine needs further evaluation.
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PMID:Cardiogenic hepatorenal syndrome. 224 92

Clinical feature and creatinine metabolism were studied in 86 diabetic patients who had newly initiated dialysis treatment. In 32.5% of the patients, serum creatinine was below 8.0 mg/dl at the initiation of dialysis treatment. Gastrointestinal symptoms, general malaise, pulmonary edema and uremic encephalopathy were the causes which required dialysis treatment in those patients, and the frequency of pulmonary edema was significantly higher than in patients whose serum creatinine was above 8.0 mg/dl at the initiation of dialysis (p less than 0.05). There were no significant differences in serum urea nitrogen, potassium, sodium, albumin levels and hematocrit between low serum creatinine group (3.0-7.9 mg/dl) and high serum creatinine group (8.0-11.9 mg/dl) at the initiation of dialysis. Serum creatinine levels were highly correlated with creatinine generation rate (r = 0.788, p greater than 0.01). There was a significant correlation between creatinine generation rate and muscle volume (r = 0.863, p less than 0.001). Muscle volume of diabetic dialyzed patients was 29.5 +/- 7.0 cm3/cm in males and 26.9 +/- 5.0 cm3/cm in females, and those values were lower than those of non-diabetic dialyzed patients (p greater than 0.005). Frequency of the patients whose creatinine generation rate was below 1500 mg/day was 81.3% in diabetic hemodialyzed patients and this was significantly higher than in non-diabetic hemodialyzed patients (p less than 0.005). In conclusion, in patients with diabetic nephropathy who have to initiate dialysis treatment, uremic symptoms have progressed though serum creatinine levels are relatively low. This low serum creatinine levels in patients with diabetic end-stage renal disease are resulted from their low muscle volume.
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PMID:[Characteristics of the patients with diabetic nephropathy with relatively low serum creatinine at the initiation of dialysis]. 226 24


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