Torsemide: A Pyridine-Sulfonylurea Loop Diuretic

1995 ◽  
Vol 29 (4) ◽  
pp. 396-402 ◽  
Author(s):  
Jamie S Blose ◽  
Kirkwood F Adams ◽  
J Herbert Patterson
Keyword(s):  
Heart Failure ◽  
Congestive Heart Failure ◽  
Renal Disease ◽  
English Language ◽  
Loop Diuretic ◽  
Antihypertensive Agents ◽  
Hepatic Disease ◽  
Loop Diuretics ◽  
Once Daily ◽  
Medline Search

Objective: To review the clinical pharmacology of torsemide and to compare it with currently available loop diuretics, particularly furosemide. Data Sources: An English-language MEDLINE search, 1985 to October 1994, was used to identify pertinent literature, including review articles. Data Extraction: Data from scientific literature were extracted, evaluated, and summarized for presentation. Pivotal and representative studies are discussed relating to the pharmacology, pharmacokinetics, and use of torsemide in patients with congestive heart failure, renal disease, hepatic disease, and hypertension. Data Synthesis: Torsemide is a loop diuretic of the pyridine-sulfonylurea class. The bioavailability of torsemide is approximately 80%, with little first-pass metabolism, and torsemide can be given without regard to meals. The serum concentration reaches its peak within 1 hour after oral administration and diuresis lasts approximately 6—8 hours. Torsemide is eliminated both hepatically (80%) and renally (20%) as unchanged drug with an elimination half-life of about 3.5 hours. Because of the high bioavailability, oral and intravenous doses are therapeutically equivalent. Torsemide, and other loop diuretics such as furosemide, are indicated for the treatment of edema associated with congestive heart failure, renal disease, and hepatic disease. They also are indicated for the treatment of hypertension alone or in combination with other antihypertensive agents. Depending on the indication, the recommended initial adult dosage of torsemide is between 5 and 20 mg once daily orally or intravenously. Special dosage adjustments in the elderly are not necessary. Conclusions: Torsemide is a loop diuretic similar to furosemide, with similar indications. Torsemide is characterized by good bioavailability and once-daily dosing and, compared with furosemide, provides generally equivalent therapeutic efficacy.

Abstract 187: Loop Diuretic Therapy in Acute Decompensated Heart Failure among Premier Hospitals

2012 ◽  
Vol 5 (suppl_1) ◽  
Author(s):  
Behnood Bikdeli ◽  
Kelly Strait ◽  
Kumar Dharmarajan ◽  
Chohreh Partovian ◽  
Nancy Kim ◽  
...  
Keyword(s):  
Heart Failure ◽  
Loop Diuretic ◽  
Acute Decompensated Heart Failure ◽  
Diuretic Therapy ◽  
Loop Diuretics ◽  
High Rate ◽  
Average Daily Dose ◽  
Duration Of Therapy ◽  
Daily Dose ◽  
Hospital Use

Background: Although loop diuretics are frequently used for patients with heart failure (HF), little is known about the variation in patterns of diuretic therapy in US hospitals. We sought to describe such treatment patterns among a diverse group of hospitals. Methods: We studied HF hospitalizations occurring during 2009-10 in Premier Inc. hospitals participating in a collaborative project to pool administrative and charge data, which includes information about drug types, average daily dose, and duration of therapy. We excluded hospitals with less than 25 HF hospitalizations. For ease of comparison, all diuretic doses were converted to bioequivalent doses of intravenous (IV) furosemide: 40mg IV furosemide ∼ 80mg oral furosemide ∼ 20mg (oral or IV) torsemide ∼ 1mg (oral or IV) bumetanide. Summary statistics were calculated. Results: Among 366 studied hospitals (264,675 HF hospitalizations), use of any loop diuretic had an interquartile range (IQR) from 92% to 96% (median: 94%). At the hospital level, the average daily dose IQR varied from 45mg to 64 mg (median: 55 mg) and the median duration of therapy was 4 days (IQR: 4 to 4; median: 4), as was the median length of stay. The IQR for use of furosemide varied from 89% to 94% (median: 92%), and its median average daily dose had an IQR from 40mg to 60 mg (median: 53 mg). Hospital use of bumetanide had an IQR from 2% to 11%, and hospital use of torsemide had an IQR from 0% to 4% (medians of 5% and 1%, respectively). The variation in median average daily dose for bumetanide and torsemide was greater than for furosemide (bumetanide IQR: 79mg to 127 mg, with median of 89 mg; torsemide IQR: 53mg to 120 mg, with median of 80 mg). Use of IV diuretics on the last day before home discharge had an IQR from 16% to 33% (median: 24%) across hospitals. Conclusion: US hospitals administer loop diuretics, particularly furosemide, to the vast majority of HF inpatients. The duration and daily dosage of therapy was similar across most hospitals. In contrast, a minority of hospitals used bumetanide and torsemide for several patients. The daily dosage of these agents showed more marked variation. We observed a high rate of intravenous diuretic use on the last day of hospitalization, with considerable variation across hospitals.

scholarly journals Survival advantage of hemodialysis relative to peritoneal dialysis in patients with end-stage renal disease and congestive heart failure

2011 ◽  
Vol 80 (9) ◽  
pp. 970-977 ◽  
Author(s):  
Florence Sens ◽  
Anne-Marie Schott-Pethelaz ◽  
Michel Labeeuw ◽  
Cyrille Colin ◽  
Emmanuel Villar
Keyword(s):  
Heart Failure ◽  
Congestive Heart Failure ◽  
Peritoneal Dialysis ◽  
Renal Disease ◽  
End Stage Renal Disease ◽  
Survival Advantage ◽  
Stage Renal Disease ◽  
End Stage

Refractory oedema in congestive heart failure: a contributory role of loop diuretics?

1995 ◽  
Vol 237 (2) ◽  
pp. 211-214 ◽  
Author(s):  
C. HALLER ◽  
P. SALBACH ◽  
H. KATUS ◽  
W. KÜBLER
Keyword(s):  
Heart Failure ◽  
Congestive Heart Failure ◽  
Loop Diuretics

Superiority of Long-Acting to Short-Acting Loop Diuretics in the Treatment of Congestive Heart Failure

2012 ◽  
Vol 76 (4) ◽  
pp. 833-842 ◽  
Author(s):  
Tohru Masuyama ◽  
Takeshi Tsujino ◽  
Hideki Origasa ◽  
Kazuhiro Yamamoto ◽  
Takashi Akasaka ◽  
...  
Keyword(s):  
Heart Failure ◽  
Congestive Heart Failure ◽  
Loop Diuretics ◽  
Short Acting ◽  
Long Acting

Abstract P250: How Much Decrement in Renal Function During Heart Failure Hospitalization is Due to Loop Diuretic Exposure?

2011 ◽  
Vol 4 (suppl_1) ◽  
Author(s):  
Olesya Krivospitskaya ◽  
Edward L Peterson ◽  
Gurgit Singh ◽  
Karen Wells ◽  
L. Keoki Williams ◽  
...  
Keyword(s):  
Heart Failure ◽  
Renal Function ◽  
African American ◽  
Loop Diuretic ◽  
Loop Diuretics ◽  
Function Change ◽  
Primary Hospital ◽  
Stage Renal Disease ◽  
End Stage ◽  
African American Race

Background: Worsening renal function (WRF) during heart failure (HF) hospitalization is an accepted correlate of poor prognosis. Loop diuretics are increasingly being considered as a potential cause of worsened HF outcomes, perhaps via WRF. However, the magnitude of worsening in renal function attributable to loop diuretics has not been quantified. Methods: This was a retrospective cohort study of patients who received care from a large health system and had a primary hospital discharge diagnosis of HF between Jan 1, 2000 and June 30, 2008. Patients with preexisting end-stage renal disease were excluded. Daily creatinine (Cr) measurements, furosemide dosing (only loop diuretic on hospital formulary), and radiocontrast dye studies were collected using administrative data. Day-to-day changes in Cr and MDRD estimated glomerular filtration (eGFR) calculated. The first Cr or eGFR value during hospitalization or in the emergency department was considered baseline. Generalized estimating equations were used to test the association furosemide exposure over previous 2 days to the daily change in Cr and eGFR. Covariates included undergoing radiocontrast study, age, race, gender, and baseline Cr or eGFR. Results: Among 6071 patients who met inclusion criteria there were a total of 20,645 observations. This cohort was 51% female, 68% African American, and baseline Cr was 1.36 mg/dl. Furosemide exposure was associated with an average daily increase in Cr of 0.021 mg/dL and decrease in eGFR of 0.72 ml/min/1.73m2 (per 100 mg furosemide daily, both p<0.001). Over a typical length of stay of 5 days this would amount to a Cr increase of 0.11 mg/dL or decrease in eGFR of 3.6 ml/min/1.73m 2 . Furosemide exposure accounted for only 0.4% and 0.1% of the variation in Cr and eGFR changes, respectively. Undergoing radiocontrast study, African American race, and higher age were associated with day-to-day creatinine increases (all p<0.01). Conclusions: While loop diuretic exposure is statistically associated with WRF among hospitalized HF patients, the associated magnitude of renal function change is very small, and loop diuretics explains little of the variability in renal function during hospitalization. More important predictive factors likely exist but remain unidentified.

Cyclophosphamide cardiotoxicity in bone marrow transplantation: a prospective evaluation of new dosing regimens.

1991 ◽  
Vol 9 (7) ◽  
pp. 1215-1223 ◽  
Author(s):  
A C Braverman ◽  
J H Antin ◽  
M T Plappert ◽  
E F Cook ◽  
R T Lee
Keyword(s):  
Heart Failure ◽  
Bone Marrow ◽  
Congestive Heart Failure ◽  
Bone Marrow Transplantation ◽  
Left Ventricular Mass ◽  
Marrow Transplantation ◽  
Dose Group ◽  
Left Ventricular ◽  
Once Daily ◽  
Dosing Regimens

Cyclophosphamide (CY) cardiotoxicity may be a lethal complication of bone marrow transplantation. Previous echocardiographic studies have reported that left ventricular dysfunction due to CY occurs in over 50% of patients undergoing transplantation. To evaluate the cardiotoxicity of new dosing protocols that included twice-daily rather than once-daily CY, 44 bone marrow transplantation patients were prospectively evaluated with serial ECGs and echocardiograms. Twenty-six patients received a once-daily lower-dose protocol (mean total 87 +/- 11 mg/kg), and 18 patients received a twice-daily higher-dose (mean total 174 +/- 34 mg/kg) CY regimen. In the higher-dose CY group, significant reductions in summed ECG voltage (-20%) (P less than .01) and increases in left ventricular mass index (LVMI) (+10%) (P less than .05) were detected in the first week following therapy. These changes resolved by the third week following CY and were significantly greater than the changes noted in the lower-dose group. However, left ventricular ejection fraction (EF) did not change significantly in either group. Five patients developed clinical cardiotoxicity (four, pericarditis; one, congestive heart failure); four of the five patients were in the higher-dose group (P = .14). Only a prior history of congestive heart failure or a baseline EF less than 50% was an independent correlate of clinical cardiotoxicity (P less than .05). Thus, dose-dependent cardiotoxicity following the use of CY for bone marrow transplantation is evident as reversible decreases in ECG voltage and increases in left ventricular mass, possibly reflecting myocardial edema or hemorrhage. However, systolic dysfunction is much less common with these new twice-daily dosing regimens when compared with earlier studies of high-dose once-daily CY.

scholarly journals ALTERATION IN RENAL FUNCTION FOLLOWING LOOP DIURETICS IN PATIENTS WITH ACUTE DECOMPENSATED HEART FAILURE

2019 ◽  
pp. 61-63
Author(s):  
PRUDENCE A RODRIGUES ◽  
SOUMYA GK ◽  
NADIA GRACE BUNSHAW ◽  
SARANYA N ◽  
SUJITH K ◽  
...  
Keyword(s):  
Heart Failure ◽  
Renal Function ◽  
Renal Injury ◽  
Loop Diuretic ◽  
Acute Decompensated Heart Failure ◽  
Diuretic Therapy ◽  
Decompensated Heart Failure ◽  
Loop Diuretics ◽  
Contributing Factors ◽  
The Impact

Objective: The objective of the study was to monitor the impact of loop diuretic therapy in patients with acute decompensated heart failure (ADHF) and to assess other predictors of renal dysfunction in patients with ADHF. Methods: An observational study over a period of 6 months from January 2018 to June 2018 in the Department of Cardiology, in a Tertiary Care Teaching Hospital, Coimbatore, Tamil Nadu. Patients on diuretic therapy (loop diuretic) were enrolled. Patients with prior chronic kidney disease were excluded from the study. The patients were evaluated based on change in serum creatinine (SCr) and other contributing factors were assessed by acute kidney injury network and worsening of renal function criteria. Results: A total of 135 patients were enrolled, of which 73% were males and 27% were females. The mean age of the subjects was 61.55±13 years. The baseline means SCr was 1.62±0.92 mg/dl. On evaluation, 41% were really affected and 59% remain unaffected. Factors such as hypertension (p=0.047) and angiotensin-converting enzyme inhibitors (ACE-I) (p=0.023) were found to be significant predictors of renal injury. Conclusion: Variation in renal function in ADHF patients was multifactorial. The direct influence of loop diuretics on renal function was present but was not well established. Hypertension and ACE-I have found to show influence in the development of renal injury as contributing factors. There exists both positive and negative consequence of loop diuretics on renal function.

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