Search results for " RESISTANCE"
showing 10 items of 2791 documents
Pulmonale Thrombendarteriektomie bei thromboembolischer pulmonaler Hypertonie: Indikationen und Frühergebnisse
2008
Pulmonary thrombendarterectomy was performed in 32 patients (14 men and 18 women; mean age 38 +/- 15 years) with thromboembolic pulmonary hypertension (New York Heart Association stage III: n = 22; stage IV: n = 10). The preoperative arterial pO2 averaged 59 +/- 11 mm Hg; pulmonary vascular resistance (PVR) and mean pressure (MPAP) were increased to 1,045 +/- 430 dyn.s.cm-5 and 53 +/- 12 mm Hg, respectively. The perioperative death rate was 22% (7 of 32). In the 25 survivors the pulmonary hypertension was reduced to a PVR of 194 +/- 75 dys.s.cm-5, MPAP of 28 +/- 6 mm Hg. Subsequent re-examination in 15 patients (NYHA stage I: n = 14, stage II: n = 1) after a mean of 17 +/- 5 months demonstr…
Changes of Hemodynamic Parameters, Pulmonary Gas Exchange, and Extravascular Lung Water During Esophageal Cancer Surgery
1988
Esophagectomy is often connected to postoperative pulmonary complications with a high mortality rate [1, 3,4]. From 1980 to 1985 we treated 19 patients after esophagectomy in our intensive care unit. Nine patients (47%) died of pulmonary complications. From the literature [3] and from our own observations we came to the conclusion that the first pulmonary changes start during the operative procedure.
Oral Idarubicin in Maintenance Therapy of Acute Myeloid Leukemia
2001
More than half of all acute myeloid leukaemia (AML) patients are over 60 years. The disease free survival (DFS) and overall survival (OS) rate of these patients is poor. These unsatisfactory results are associated with adverse cytogenetic characteristics, prior myelods-plasia, adverse phenotypic features, MDR and BCL2 overexpression. Furthermore a large fraction of patients achieving CR early relapses. This is due to two factors: acquired tumor cell drug resistance and tumor re-growth. Maintenance therapy could provide a means to keep leukemic growth under control. We enrolled 31 elderly previous responder patients to standard induction therapy to receive maintenance oral IDA 3mg/m2 daily d…
Diabetes and Dementia
2015
Persons with type 2 diabetes mellitus (DM2) have an increased incidence of cognitive decline and dementia. An increased cortical and subcortical atrophy has been found after controlling for vascular disease and inadequate cerebral circulation. A possible role of insulin resistance and hyperinsulinemia has been suggested to mediate the link between DM2 and Alzheimer’s Disease (AD). Altered insulin signaling may contribute to AD biochemical and histopathological lesions. Both hyperglycemia and hypoglycemia may contribute to cognitive decline in DM2. Recurrent symptomatic and asymptomatic hypoglycemic episodes have been suggested to cause subclinical brain damage, and permanent cognitive impai…
Physical exercise and sarcopenia in older people: position paper of the Italian Society of Orthopaedics and Medicine (OrtoMed)
2015
Sarcopenia is the age-associated loss of skeletal muscle mass and function. It is a major clinical problem for older people and research in understanding of pathogenesis, clinical consequences, management, and socioeconomic burden of this condition is growing exponentially. The causes of sarcopenia are multifactorial, including inflammation, insulin resistance, changing endocrine function, chronic diseases, nutritional deficiencies and low levels of physical activity. Operational definition of sarcopenia combines assessment of muscle mass, muscle strength and physical performance. The diagnosis of sarcopenia should be based on having a low appendicular fat free mass in combination with low …
Chronische thromboembolische pulmonale Hypertonie: Hämodynamische Auswirkungen der selektiven Pulmonalis-DSA mit nicht-ionischem Kontrastmittel
1998
PURPOSE This study evaluates the effects of pulmonary bolus injection of nonionic contrast medium on pulmonary artery pressure and resistance in patients with chronic thromboembolic pulmonary hypertension. METHODS In 39 patients (age 52 +/- 15) haemodynamic measurements were performed during bolus injection of nonionic contrast medium in a control group (I), in moderately severe (II) and severe pulmonary hypertension (III). RESULTS Initial inspiratory arrest caused significant pressure increase in all groups prior to bolus injection (delta PAsyst: 7.1 +/- 6.7 [I], 6.8 +/- 3.9 [II] und 7.2 +/- 7.9 mmHg p < 0.05). However, contrast bolus injection (25.1 +/- 2.3 ml iopamidol, 13.0 ml/s) caused…
Effects of Tolazoline and Prostacyclin on Pulmonary Hypertension in Infants After Cardiac Surgery
1992
Objective To evaluate the hemodynamic effects of tolazoline and prostacyclin in infants with pulmonary vasospasm after cardiac surgery. Design Prospective cohort study. Setting Pediatric ICU. Patients The cohort consisted of 42 infants and children with congenital heart disease and pulmonary hypertension who underwent corrective surgery and were monitored postoperatively using pulmonary artery catheters. Fourteen infants (2 to 12 months old) in this group required postoperative treatment with tolazoline or prostacyclin. Interventions Tolazoline was administered as a bolus of 0.5 mg/kg for treatment of persistent pulmonary hypertension or acute pulmonary hypertensive crisis. If its effective…
Obesity and Obstructive Sleep Apnea
2021
Obstructive sleep apnea (OSA) is characterized by upper airway collapse during sleep. Chronic intermittent hypoxia, sleep fragmentation, and inflammatory activation are the main pathophysiological mechanisms of OSA. OSA is highly prevalent in obese patients and may contribute to cardiometabolic risk by exerting detrimental effects on adipose tissue metabolism and potentiating the adipose tissue dysfunction typically found in obesity. This chapter will provide an update on: (a) the epidemiological studies linking obesity and OSA; (b) the studies exploring the effects of intermittent hypoxia and sleep fragmentation on the adipose tissue; (c) the effects of OSA treatment with continuous positi…
COSMIC project : consensus on the objectives of the metabolic syndrome in clinic
2018
Juan Pedro-Botet,1 Juan F Ascaso,2,3 Vivencio Barrios,4,5 Alejandro De la Sierra,6 Javier Escalada,7,8 Jesús Millán,9 Jose M Mostaza,10 Pablo Pérez-Martínez,8,11 Xavier Pintó,8,12 Jordi Salas-Salvadó,8,13 Pedro Valdivielso14 1Lipids and Vascular Risk Unit, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain; 2Endocrinology and Nutrition Service, Hospital Clínico, Universitat de Valencia, Valencia, Spain; 3INCLIVA Research Institute, Diabetes and Metabolic Diseases Ciber (Networked Biomedical Research Centres – CIBERDEM), Carlos III, Valencia, Spain; 4Cardiology Service, Hospital Universitario Ramón y Caja…
PNPLA3 polymorphism influences liver fibrosis in unselected patients with type 2 diabetes
2011
Context: Recently, it has been shown that an allele in the adiponutrin (PNPLA3) gene was strongly associated with increased liver fat content (LFC) and liver fibrosis independent of visceral adiposity and insulin resistance. Objective: In this study, we set out to determine whether the PNPLA3 rs738409 polymorphism was associated with liver fibrosis in unselected patients with type 2 diabetes. Design, setting and participants: Two hundred and thirty-four patients with type 2 diabetes were included in this study. Main outcome measures: LFC was evaluated using 1H-MR spectroscopy; fibrosis was measured using the non-invasive FibroTest®. Results: Advanced liver fibrosis (stage F2 or above) was o…