Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0034063 (pulmonary edema)
 10,665 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In order to elucidate the pathogenesis of haemodialysis related hypoxaemia, lung function studies, measurements of intra-thoracic fluid changes, leucocytes and complement activity were made in 12 patients during a routine six hours dialysis using cellulose membranes. Coincidently with the fall in arterial oxygen tension, lung function was significantly impaired, paralleled by a decrease in transthoracic impedance, leucopenia and a decrease in plasma complement activity. It therefore is suggested that blood membrane interaction leads to complement-mediated pulmonary leucostasis evoking mild pulmonary oedema with impaired oxygen diffusion, resulting in hypoxaemia.
Proc Eur Dial Transplant Assoc 1980
PMID:Pathophysiology of dialysis related hypoxaemia. 678 81

Thirty-four males aged 16-40 (mean 25) years in the period from August 1991 to February 1993 presented in acute renal failure (ARF), 3-14 (mean 5) days after they had been apprehended and allegedly tortured in Police interrogation centres in Kashmir. All were beaten involving muscles of the body, in addition 13 were beaten on soles, 11 were trampled over and 10 had received repeated electric shocks. Patients were studied in three groups: group I, those with evidence of only myoglobinuria (n = 21); group II, those with both myoglobinuria and haemoglobinuria (n = 10); and group III, those with evidence of only haemoglobinuria (n = 3). All had varying degrees of ecchymotic patches on the body and patients in groups II and III were beaten on soles had ecchymosis of soles. Hypertension was present in 11 and pulmonary oedema in five. Mean haemoglobin, BUN and serum creatinine were not significantly different in the three groups. Creatine phosphokinase in groups I, II and III were 985-7516 (1358 +/- 368), 917-5277 (1431 +/- 188), and 517-816 (772 +/- 69) and lactic dehydrogenase levels were 757-3727 (2191 +/- 56), 592-3454 (1923 +/- 164), and 446-958 (632 +/- 115) respectively. All the cases had metabolic acidosis, 20 had hyperkalaemia. Plasma haemoglobin was 11-48 (mean 26) mg/dl in group II and 26-56 (mean 35) mg/dl in group III. Urine test for haemoglobin was positive in seven cases in group II and two cases in group III. Pigment casts were present in 10, eight and two cases in groups I, II, and III respectively. Only those who were beaten on soles had evidence of haemoglobinuria.(ABSTRACT TRUNCATED AT 250 WORDS)
Nephrol Dial Transplant 1995
PMID:Further observations on acute renal failure following physical torture. 775 48

Five patients on maintenance haemodialysis were exposed to varying degrees of hypernatric dialysate, leading to acute hypernatraemia (plasma sodium concentrations 158 mmol/l to 179 mmol/l). With the exception of one patient, who developed pulmonary oedema, symptoms were minimal and in each case hypernatraemia was corrected without residual complications. The hypernatric dialysate resulted from a granular and less soluble batch of sodium bicarbonate powder. The extra effort required to dissolve the powder caused CO2 to be shaken out of solution, producing sodium carbonate and raising the pH. Mixing calcium from the 'acid' concentrate with excess carbonate in the 'bicarbonate' concentrate led to rapid precipitation of calcium carbonate on the conductivity monitoring cells. Dialysate conductivity was incorrectly sensed as low by the coated conductivity cells, so that an increasing amount of 'acid' concentrate, with its accompanying electrolytes, was delivered to the patient. When the granular powder was ground to a fine powder, passed through a 125 microns sieve and gently dissolved, the machine operated normally. We recommend that sodium bicarbonate powder is supplied with a sieve size no greater than 125 microns, kept dry to prevent the formation of large crystals, and dissolved gently.
Nephrol Dial Transplant 1994
PMID:Acute hypernatraemia during bicarbonate-buffered haemodialysis. 780 Feb 20

Thirty per cent of patients who started maintenance haemodialysis at our institution between January 1989 and December 1991 had been referred at a very late stage of their renal disease. To assess the causes and consequences of such late referral we retrospectively compared clinical and laboratory features of 65 patients who had been referred less than 1 month prior to first dialysis (late referral, or LR group) and of 153 patients who had been previously followed-up by us for more than 6 months (early referral, or ER group). Age, sex ratio, and socioeconomic status were similar in the two groups. In the LR group, 38 patients had never been referred to a nephrology unit, whereas 27 had discontinued nephrological surveillance. Fluid overload, severe hypertension, and/or pulmonary oedema was present in 57% of LR versus 15% of ER patients (P < 0.001). Mean (+/- 1 SD) systolic and diastolic blood pressure was greater in the LR than the ER group (173 +/- 19/99 +/- 12 versus 147 +/- 15/84 +/- 8 mmHg, P < 0.001). Mean plasma concentration of creatinine, urea and phosphate was significantly greater, whereas bicarbonate, calcium, haematocrit and albumin were less in the LR than the ER group. Most (88%) LR patients started dialysis in emergency conditions through central vein catheterization. Total hospital stay lasted 34.5 +/- 16.3 days in LR versus 5.8 +/- 3.0 days in ER patients (P < 0.0001), resulting in an excess cost of 0.2 million French francs per LR patient.(ABSTRACT TRUNCATED AT 250 WORDS)
Nephrol Dial Transplant 1993
PMID:Late referral to maintenance dialysis: detrimental consequences. 827 21

It has been postulated that patients with chronic renal failure, even in the absence of cardiopulmonary symptoms, accumulate interstitial pulmonary fluid, which is removed by haemodialysis. To test this hypothesis we used the indocyanine green (ICG)-heavy water double indicator dilution method to measure lung water, cardiac output, and central blood volume in relation to haemodialysis. Ten uraemic patients, without cardiopulmonary symptoms, were investigated at the beginning and end, and 2 h after, a regular dialysis session. A group of 18 surgical patients about to undergo elective abdominal surgery served as controls. Despite normal gas exchange, central blood volume, and cardiac output at the start of dialysis the mean (SD) lung water was significantly higher than in the control group [4.8 (0.9) compared with 3.6 (0.7) ml/kg, P < 0.001]. There was no correlation between weight gain between sessions of dialysis and the magnitude of lung water at the start of dialysis. Lung water decreased (P < 0.001) to the level of the control group in response to dialysis. There was no correlation between weight loss and reduction in lung water induced by dialysis. In conclusion, we have verified the presence of subclinical pulmonary oedema which was removed by dialysis in a group of patients with established renal failure. The variations in lung water cannot be explained by hydrostatic mechanisms alone.
Nephrol Dial Transplant 1996 Nov
PMID:Subclinical pulmonary oedema and intermittent haemodialysis. 894 89

We report 3 patients on continuous ambulatory peritoneal dialysis (CAPD) who developed reversible ultrafiltration failure secondary to retroperitoneal leakage. The patients presented with pulmonary edema and fluid overload following a sudden onset of ultrafiltration failure on maintenance CAPD. There was no localized edema, suggesting peritoneal leakage in the abdominal wall or the perineum. Radiological examination showed no migration of the Tenckhoff catheter. Leakage of dialysate into the retroperitoneal space was only revealed by computed tomographic (CT) peritoneography. These patients were then treated with intermittent peritoneal dialysis twice weekly. After repeated CT peritoneography showing complete resolution of the leakage, they successfully resumed CAPD treatment 2 months later, without ultrafiltration problems. Our finding suggests that retroperitoneal leakage could be one of the uncommon, yet reversible, causes of acute ultrafiltration failure that can be diagnosed with CT peritoneography.
Perit Dial Int
PMID:Retroperitoneal leakage as a cause of ultrafiltration failure. 1549 Sep 80

The whole body bioimpedance technique is a highly promising non-invasive, reproducible, fast and inexpensive bed-side method for monitoring hydration status. Using segmental bioimpedance measurements, it is possible to obtain information about the fluid change in each body segment (Song, Lee, Kim and Kim 1999 Perit. Dial. Int. 19 386-90). In this pilot study we have measured 25 male patients (30-65 yr, BMI 20-32 kg m(-2)) undergoing continuous ambulatory peritoneal dialysis (CAPD). Tetrapolar impedance measurements were obtained using the right-side technique (whole body), and a segmental impedance method focused in the thorax region. Blood pressure (BP) measurements were taken manually with a sphygmomanometer. Patients were classified as either stable (group 0) or unstable (group 1) using clinical parameters of overall cardiovascular risk. The Mahalanobis distance (dM2) was calculated for the mean blood pressure (BP(mean)), and the impedance parameter R normalized by body height H for the right-side (R(RS)/H) and the thorax segment (R(TH)/H). Differences between groups were significant (p < 0.0001) for R(TH)/H and for BP(mean), and less significant (p = 0.016) for R(RS)/H. Group 1 patients showed a small dM2 as compared with a reference patient (a critical patient with acute lung edema) with high BP(mean) and low values of R(TH)/H and R(RS)/H. Moreover, Group 0 patients showed a larger dM2 with respect to the reference patient, with lower BP(mean) and higher values of R(TH)/H and R(RS)/H. All patients classified as unstable by clinical assessment were correctly classified using R(TH)/H in conjunction with BP(mean) using dM2. Segmental-monofrequency non-invasive bioimpedance of the thoracic region could provide a simple, objective non-invasive method of support for facilitating the clinical assessment of CAPD patients.
 ...
PMID:Thoracic versus whole body bioimpedance measurements: the relation to hydration status and hypertension in peritoneal dialysis patients. 1695 56

Of the two main renal replacement therapies, peritoneal dialysis (PD) was the modality first used for the treatment of patients with acute renal failure (ARF) because of its inherent advantages. Highly trained personnel, expensive and complex apparatus, and systemic anticoagulation were not needed, and so the procedure could be simply and quickly initiated. Further, because of the gradual removal of fluid and solutes, PD results in better hemodynamic stability. Manually or cycler-assisted ("automated") PD has been successfully used in many ARF patients, especially those at risk of bleeding or with hemodynamic instability, and in infants and children with ARF or circulatory failure. Recently, technological developments in hemodialysis techniques (bicarbonate dialysis, hemofiltration, hemodiafiltration) and the continuous renal replacement therapies (CRRTs), have limited the indications for PD in critically ill patients with ARF. In addition, better knowledge about the connection between early and adequate dialysis dose and improved outcomes has led to a tendency to increase the dialysis dose given to ARF patients, furthering the development of newer techniques. Although PD has been considered less effective than hemodialysis and CRRTs are in patients with severe acute illness (pulmonary edema, poisoning, extreme catabolysis) and ARF, PD remains an effective therapy that is easily and simply instituted, especially for infants and children with ARF, both within and outside of intensive care settings.
Adv Perit Dial 2007
PMID:Peritoneal dialysis in patients with acute renal failure. 1788 95

The mechanisms of fluid and solute abnormalities that should be considered in any patient with severe hyperglycemia include changes in the total amount of extracellular solute, osmotic diuresis, intake of water driven by thirst, and influences from associated conditions. The absence of osmotic diuresis distinguishes dialysis-associated hyperglycemia (DH) from hyperglycemia with preserved renal function (HPRF). Mainly because of this absence, comparable degrees of hyperglycemia tend to produce less hypertonicity and less severe intracellular volume contraction in DH than in HPRF, while extracellular volume is expanded in DH but contracted in HPRF. Ketoacidosis can develop in both DH and HPRF. Among DH patients, hyperkalemia appears to be more frequent when ketoacidosis is present than when nonketotic hyperglycemia is present. Among HPRF patients, the frequency of hyperkalemia appears to be similar whether ketoacidosis or nonketotic hyperglycemia is present. Usually patients with severe DH have no symptoms or may exhibit a thirst. Infrequent clinical manifestations of DH include coma and seizures from hypertonicity or ketoacidosis and pulmonary edema from extracellular expansion. Insulin infusion is usually the only treatment required to correct the biochemical abnormalities and reverse the clinical manifestations of DH. Monitoring of the clinical manifestations and biochemical parameters during treatment of DH with insulin is needed to determine whether additional measures, such as administration of saline, free water, or potassium salts, as well as emergency hemodialysis (HD) are needed. Emergency HD carries the risk of excessively rapid decline in tonicity; its benefits in the treatment of DH have not been established.
Semin Dial
PMID:Pathophysiology and management of fluid and electrolyte disturbances in patients on chronic dialysis with severe hyperglycemia. 1894 31

Cardiac disease is a common cause of morbidity in dialysis patients. Traditional and unique risk factors have both been incriminated in the pathogenesis of abnormal cardiac function in these patients. In the present report, we focus on the role of hypocalcemia post parathyroidectomy as a cause of abnormal myocardial function leading to pulmonary edema in a young peritoneal dialysis patient with angiographically-proven normal coronary arteries. The pulmonary edema reversed with correction of the hypocalcemia. Hypocalcemia should be added to the differential diagnosis of contributors to cardiac dysfunction in patients on dialysis. Post parathyroidectomy, patients may be at particular risk for this complication because of severe, protracted hypocalcemia.
Adv Perit Dial 2010
PMID:Myocardial dysfunction and pulmonary edema post parathyroidectomy: the role of hypocalcemia. 2134 94


1 2 Next >>