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Query: UMLS:C0018801 (heart failure)
 72,216 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

During a 12-year period, when more than 106,000 women were delivered, 28 women with peripartum heart failure of obscure etiology that initially was diagnosed as peripartum cardiomyopathy were studied. None had obvious underlying cardiac disease or iatrogenic fluid overload, and in all an assiduous search for underlying cardiovascular disease was launched. In 21 of these 28 women, heart failure was attributed to chronic underlying disease (chronic hypertension in 14, forme fruste mitral stenosis in four, and morbid obesity in one) or viral myocarditis. Importantly, these women also had multiple compounding cardiovascular factors--preeclampsia, cesarean section, anemia, and infection--which, when superimposed on those of pregnancy, acted in concert to cause heart failure. In seven women, the cause for cardiomegaly and global hypokinesis was not found, and peripartum cardiomyopathy was diagnosed. Compared with women with explicable causes of peripartum heart failure, these women did poorly: six had persistent cardiomegaly and heart failure, and four of these died within four months to eight years. From these observations, the authors conclude that idiopathic peripartum cardiomyopathy is uncommon, and that in most women with peripartum heart failure of obscure etiology, underlying chronic disease will be identified. Heart failure in these women ensues when the cardiovascular demands of normal pregnancy are amplified further by common pregnancy complications superimposed upon these underlying conditions that cause compensated ventricular hypertrophy.
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PMID:Peripartum heart failure: idiopathic cardiomyopathy or compounding cardiovascular events? 293 58

The pathophysiology of heart failure in morbid obesity differs from that found in other types of cardiac disease. This article attempts to clarify the myocardial and hemodynamic derangements in morbidly obese subjects. A diagrammatic schema is used to demonstrate the relationship between abnormal function and signs and symptoms of cardiac disease. Noninvasive methods show promise in documenting the effect of enforced weight loss on cardiac function.
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PMID:Morbid obesity: cardiac evaluation and function. 331 2

Two cases of fatal bleeding in patients treated with low molecular weight heparin for deep vein thrombosis are reported. Risk factors for bleeding were: severe underlying disease (cancer in one case, morbid obesity and cardiac failure in the other), age over 80 years and worsening of renal insufficiency in both cases, recent surgical procedure in one case. Anti-Xa activity was beyond the therapeutic range at the time of bleeding in both cases. The usefulness of biologically monitoring the treatment of deep vein thrombosis with low molecular weight heparin is discussed.
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PMID:[Severe hemorrhagic complications during treatment with low molecular weight heparin. Apropos of 2 cases]. 918 51

Severe obesity with co-morbidity such as diabetes mellitus, cardiac failure, obesity hypoventilation, degenerative bone diseases and increased incidence of malignancy give rise to shorter life expectancy and have an impact on quality of life. This results in higher costs of health care and work absence. Surgical procedures have become commonplace in the therapy of morbid obesity because of the infrequent success of medical treatment. We performed a horizontal gastroplasty by laparoscopic adjustable silicon gastric banding (LASGB) on 60 patients between 1. 11. 1995 and 28. 2. 1997. The average excess above normal weight was 62 kg, the median BMI (Body-Mass-Index) was 46.44 kg/m2. Fifty-nine procedures were performed by the laparoscopic method and one with an open technique. The average postoperative hospital stay was five days. Due to dorsal slipping or pouch enlargement the procedure had to be repeated on 6 patients (10%). The median loss of weight in the first three months was 14.78 kg, after six months 24.14 kg and after nine months 35.1 kg. Insulin treatment for three patients suffering diabetes mellitus could be discontinued-in addition blood sugar levels in six patients normalised. Two patients with obstructive sleep-apnea syndrome no longer needed a nocturnal Nasal-Continuous-Positive-Airway-Pressure-(nCPAP-)Therapy. To provide a better quality of life to this group of patients, the gastric banding is a suitable method for carefully evaluated and followed patients. In addition improved ability to work and reduction of health care costs due to co-morbidity and joint diseases have a positive economic impact.
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PMID:[Surgical therapy of morbid obesity: indications, technique of laparoscopic gastric banding and initial results]. 941 44

The increased availability of growth hormone (GH) in the mid-1980s, as a result of advances in recombinant DNA techniques, has allowed research into the use of this hormone at physiological dosage, as replacement therapy for adults with GH deficiency (GHD) and at pharmacological dosages as a possible therapeutic agent, for a number of disease states. GHD adults have increased body fat and reduced muscle mass and consequently, reduced strength and exercise tolerance. In addition, they are osteopenic, have unfavourable cardiac risk factors and impaired quality of life. In these individuals, replacing GH reverses these anomalies, although it may not alter the reduced insulin-sensitivity. A proportion of adults with GHD perceive a dramatic improvement in their well-being, energy levels and mood following replacement. GH has protein and osteoanabolic, lipolytic and antinatriuretic properties. GH has been considered for the therapeutic treatment of frailty associated with ageing, osteoporosis, morbid obesity, cardiac failure, major thermal injury and various acute and chronic catabolic conditions. Initial small, uncontrolled studies for many of these clinical problems suggested a beneficial effect of GH, although, later placebo-controlled studies have not observed such dramatic effects. Furthermore, with a recent publication demonstrating an approximate 2-fold increase in mortality in critically ill patients receiving large doses of GH, the use of GH should remain in the realms of replacement therapy and research, until there are significant advances in our understanding.
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PMID:Growth hormone: current and future therapeutic applications. 1124 3

A 35-year-old man with morbid obesity was admitted to our hospital to undergo gastric banding gastroplasty by the laparoscopic approach. Aside from his morbid adiposity, with a body mass index (BMI) of 49.9 kg/m2, the patient was healthy. During the procedure, he developed ventricular fibrillation (VF) while a diathermic knife was being used. After defibrillation, his heart rate returned to normal. The postoperative clinical course was uneventful, and there was no evidence of permanent heart failure. Although the VF could have been caused by patient- or material-related variables, it was most likely the result of unwanted electrical effects. Specifically, the occurrence of an arc between the patient's tissue and the tip of the electrode during cutting in the coagulation mode can lead to low-frequency current. The modified low-frequency current may produce arrhythmias. Thus, the use of the coagulation mode to cut tissue in the cardiac region during laparoscopic procedures could increase the risk for arrhythmias. An understanding of the physical principles of electrosurgery, as well as familiarity with the equipment and its various functions, is essential for the patient's safety. In addition, cardioversion equipment should be readily available on every surgical unit.
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PMID:Ventricular fibrillation caused by electrocoagulation during laparoscopic surgery. 1196 9

Growth hormone (GH) replacement therapy for children and adults with proven GH deficiency due to a pituitary disorder has become an accepted therapy with proven efficacy. GH is increasingly suggested, however, as a potential treatment for frailty, osteoporosis, morbid obesity, cardiac failure, and various catabolic conditions. However, the available placebo controlled studies have not reported many significant beneficial effects, and it might even be dangerous to use excessive GH dosages in conditions in which the body has just decided to decrease GH actions. GH can indeed induce changes in body composition that are considered to be advantageous to GH deficient and non-GH deficient subjects. In contrast to GH replacement therapy in GH deficient subjects, however, excessive GH action due to GH misuse seems to be ineffective in improving muscle power. Moreover, there are no available study data to indicate that the use of GH for non-GH deficient subjects should be advocated, especially as animal data suggest that lower GH levels are positively correlated with longevity.
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PMID:Justified and unjustified use of growth hormone. 1546 91

There are limited data about the relative importance of the many different but inter-related inflammatory markers with respect to their ability to independently predict the presence and extent of coronary artery disease (CAD). In addition, studies demonstrating such associations have often been conducted in well-defined populations and have excluded patients with or not adjusted for co-morbidities associated with CAD. In a cohort of 389 men who underwent coronary angiography for a variety of clinical indications and across a spectrum of risk, the following inflammatory markers were measured at baseline to determine their relative abilities to predict angiographic outcomes: C-reactive protein, myeloperoxidase, tissue inhibitor of metalloproteinase-1, erythrocyte sedimentation rate, and white blood cell (WBC) count. This analysis was done in the context of traditional CAD risk factors and other co-morbidities associated with CAD (such as morbid obesity, renal dysfunction, heart failure, and so forth). WBC count was the only marker that was independently associated with angiographically documented CAD (p = 0.0184). Further, WBC count (odds ratio 1.31, 95% confidence interval 1.05 to 1.64, p = 0.0157) and plasma myeloperoxidase (odds ratio 1.35, 95% confidence interval 1.08 to 1.69, p = 0.0090) were the only inflammatory markers that were independently predictive of the presence of multivessel disease on coronary angiography. In conclusion, these data demonstrate that a simple baseline WBC count is independently associated with angiographic CAD, and that it can predict the presence of multivessel disease, even in the context of clinical CAD risk factors and other established inflammatory markers.
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PMID:Usefulness of the white blood cell count as a predictor of angiographic findings in an unselected population referred for coronary angiography. 1705 25

Although tissue Doppler (TD) imaging of the left ventricle is now commonly used in clinical settings, TD imaging of the right ventricle (RV) is not routinely practiced. Yet, there are significant data on clinical uses of RV TD imaging, including established normal values using both color and spectral TD. In acute left ventricular (LV) inferior wall myocardial infarction, depressed RV TD velocities have been shown to correlate with the presence of RV impairment, and with patient outcome. In patients with LV heart failure, TD imaging has been correlated to RV ejection fraction by radionuclide angiography, and is an independent predictor of outcome. In patients with congenital heart disease, RV TD has been especially valuable for assessing RV function, and has been correlated to invasive hemodynamic indices, and RV ejection fraction by magnetic resonance imaging. The RV performance (Tei) index has been calculated and validated using TD-derived, rather than conventional pulsed Doppler time intervals. RV TD indices have been shown to be useful in the detection of subclinical and clinical disease in morbid obesity, chronic pulmonary, and systemic disease. TD-derived RV strain imaging can detect segmental myocardial dysfunction, overcoming limitations to conventional TD imaging resulting from tethering. For both TD velocity and strain imaging, however, appreciation of the limitations of these techniques is necessary for their appropriate use. Given its rapid acquisition times, reproducibility, and ease of addition to standard transthoracic echocardiographic protocols, RV TD and strain imaging are important additional modalities in the comprehensive echo-Doppler assessment of RV function.
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PMID:Right ventricular tissue Doppler and strain imaging: ready for clinical use? 1745 72

Peripartum cardiomyopathy is a potentially fatal form of heart failure associated with pregnancy. A 29-year-old African American woman, gravida 3, para 2, at 36 weeks' gestation had a history of cardiomyopathy, morbid obesity (body mass index > 70 kg/m2), uncontrolled hypertension, obstructive sleep apnea, and required a repeat cesarean delivery. The patient was admitted to the hospital several times throughout her pregnancy for congestive heart failure, pulmonary edema, and headaches. Two years previously the patient received a diagnosis of peripartum cardiomyopathy 3 weeks after the delivery of her second child. This case report illustrates the recognition of peripartum cardiomyopathy and the risks early in pregnancy. It also describes the appropriate medical management, including transesophageal echocardiography and the need for collaboration of multiple medical specialists before and during delivery to provide the best possible outcome for both mother and infant.
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PMID:Multidisciplinary management of peripartum cardiomyopathy during repeat cesarean delivery: a case report. 1909 Mar 14


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