Publications by authors named "Audrey Auclair"

Background: We aimed to determine whether the addition of yoga to a regular exercise training regimen improves cardiometabolic risk profile.

Methods: Sixty individuals with diagnosed hypertension (≥ 140/90 mm Hg for 3 measurements on different days) were recruited in an exercise training program. In addition to aerobic exercise training, participants were randomised into either a yoga or a stretching control group.

View Article and Find Full Text PDF

Background: Exaggerated blood pressure response to exercise is a cardiovascular risk factor associated to higher morbidity and mortality. Severely obese patients have an increased risk of exercise-induced hypertension (EIH). We aimed to assess the blood pressure response to exercise in patients with severe obesity who underwent bariatric surgery as well as the main determinants of this response.

View Article and Find Full Text PDF

Background: Management of aortic stenosis (AS) relies on symptoms. Exercise testing is recommended for asymptomatic patients with significant AS but is often experienced as forbidding and/or technically unrealistic for patients who are often frail, deconditioned, and intimidated by the exercise test. We compared the physiological burden assessed with gas exchange assessments to gauge and respiratory exchange ratio (RER) of a 6-minute walk test (6MWT) to a cardiopulmonary exercise stress test (CPET) in patients with severe AS.

View Article and Find Full Text PDF

Aims: We explored the early effects of bariatric surgery on subclinical myocardial function in individuals with severe obesity and preserved left ventricular (LV) ejection fraction.

Methods: Thirty-eight patients with severe obesity [body mass index (BMI) ≥35 kg/m] and preserved LV ejection fraction (≥50%) who underwent bariatric surgery (biliopancreatic diversion with duodenal switch [BPD-DS]) (Surgery group), 19 patients with severe obesity managed with usual care (Medical group), and 18 age and sex-matched non-obese controls (non-obese group) were included. Left ventricular global longitudinal strain (LV GLS) was evaluated with echocardiography speckle tracking imaging.

View Article and Find Full Text PDF

Most patients with severe obesity will present some lipid-lipoprotein abnormalities. The atherogenic dyslipidemia associated with severe obesity is characterized by elevated fasting and postprandial triglyceride levels, low high-density lipoprotein cholesterol concentrations, and increased proportion of small and dense low-density lipoproteins. Bariatric surgery has been proven safe and successful in terms of long-term weight loss and improvement in obesity co-existing metabolic conditions including lipid-lipoprotein abnormalities.

View Article and Find Full Text PDF

Background: Severely obese patients have decreased cardiorespiratory fitness (CRF) and poor functional capacity. Bariatric surgery-induced weight loss improves CRF, but the determinants of this improvement are not well known. We aimed to assess the determinants of CRF before and after bariatric surgery and the impact of an exercise training program on CRF after bariatric surgery.

View Article and Find Full Text PDF

Background: Elevated lipoprotein(a) (Lp(a)) level is an independent risk factor for cardiovascular diseases. Lifestyle intervention studies targeting weight loss revealed little to no significant changes in Lp(a) levels. The impact of interventions that induce substantial weight loss, such as bariatric surgery, on Lp(a) levels is currently unclear.

View Article and Find Full Text PDF

Purpose: The benefit of exercise training on lipid profile in bariatric surgery patients is scarce. We assess the effect of a supervised exercise-training program on lipid profile following bariatric surgery.

Materials And Methods: A total of 60 patients were prospectively recruited, of those 49 completed the study (age 41 ± 11 years; body mass index 45.

View Article and Find Full Text PDF
Article Synopsis
  • Bariatric surgery, specifically biliopancreatic diversion with duodenal switch (BPD/DS), leads to significant weight loss and a decrease in both fat-free mass and muscle composition over a 12-month period.
  • In a study of 40 BPD/DS patients compared to 22 control patients, muscle area reductions were most pronounced in the first 6 months, with abdominal and midthigh muscle areas decreasing significantly, while changes plateaued thereafter.
  • The findings suggest that focusing on muscle quality and composition, rather than solely on total lean mass, can provide a more accurate evaluation of changes in muscle health post-surgery.
View Article and Find Full Text PDF

Autotaxin (ATX), an adipose tissue-derived lysophospholipase, has been involved in the pathophysiology of cardiometabolic diseases. The impact of bariatric surgery on circulating ATX levels is unknown. We examined the short- (24 h, 5 days) and longer-term (6 and 12 months) impact of bariatric surgery; as well as the short-term effect of caloric restriction (CR) on plasma ATX levels in patients with severe obesity.

View Article and Find Full Text PDF

Background: Blood pressure measurement in severe obesity may be technically challenging as the cuff of the device may not fit adequately around the upper arm. The aim of the study was to assess the agreement between intra-arterial blood pressure values (gold standard) compared with forearm blood pressure measurements in severely obese patients in different arm positions.

Methods: Thirty-three severely obese patients and 21 controls participated in the study.

View Article and Find Full Text PDF

Introduction: Safety of exercise training in relationship with the risk of hypoglycemia post-bariatric surgery is unknown.

Objective: To evaluate the safety and magnitude of changes in blood glucose levels during exercise training following bariatric surgery.

Material And Methods: Twenty-nine severely obese patients undergoing either sleeve gastrectomy (SG) (n = 16) or biliopancreatic diversion with duodenal switch (BPD-DS) (n = 13) were prospectively enrolled.

View Article and Find Full Text PDF

Context: Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a key regulator of low-density lipoprotein cholesterol (LDL-C) concentrations. In patients with severe obesity, biliopancreatic diversion with duodenal switch (BPD-DS) surgery induces substantial weight loss and influences lipoprotein metabolism. The effect of BPD-DS on PCSK9 levels is unknown.

View Article and Find Full Text PDF

Background: Plasma angiopoietin-like 2 (Angptl2), a proinflammatory protein, has been associated with obesity and diabetes. Whether weight loss induced by bariatric surgery and associated improvement of the cardiometabolic risk profile influence circulating Angptl2 levels is unknown. We tested whether biliopancreatic diversion with duodenal switch (BPD-DS) surgery alters plasma Angptl2 concentrations.

View Article and Find Full Text PDF

Obesity increases the risk of heart failure (HF), which continues to be a significant proportion of all cardiovascular diseases and affects increasingly younger populations. The cross-talk between adipose and the heart involves insulin resistance, adipokine signaling and inflammation, with the capacity of adipose tissue to mediate hemodynamic signals, promoting progressive cardiomyopathy. Areas covered: From a therapeutic perspective, there is not yet a single obesity-related pathway that when addressed, can ameliorate cardiomyopathy in obese patients and this is a matter of ongoing research.

View Article and Find Full Text PDF
Article Synopsis
  • Obesity-related hypertension (HTN) and obstructive sleep apnea (OSA) involve various mechanisms like fat deposits, inflammation, and altered nervous system activity, with a study focusing on patients undergoing weight loss surgery to understand these factors.
  • The study involved 62 severely obese patients, analyzing body composition and health markers over 12 months, showing those with unresolved HTN and OSA had less weight loss and lower fat reduction after surgery.
  • Findings suggest that factors like fat mobilization and parasympathetic nervous activity could contribute to ongoing issues with HTN and OSA post-surgery.
View Article and Find Full Text PDF

Background: Abdominal obesity and presence of the metabolic syndrome (MetS) are associated with cardiac abnormalities. Among those, left ventricular diastolic dysfunction (LVDD) is the most frequently encountered in clinical practice. Few studies evaluated the reversibility of LVDD by an approach promoting lifestyle modifications in abdominally obese subjects with MetS.

View Article and Find Full Text PDF

Background: Severe obesity is often characterized by ectopic fat deposition, which is related to development of type 2 diabetes (T2D). Thus, resolution of T2D may not be linearly associated with weight loss. The importance of ectopic fat reduction after bariatric surgery and T2D resolution is uncertain.

View Article and Find Full Text PDF

Severe obesity is associated with increased morbidity and mortality and represents a major health care problem with increasing incidence worldwide. Bariatric surgery, through its efficacy and improved safety, is emerging as an important available treatment for patients with severe obesity. Classically, bariatric surgery has been described as either a restrictive or a hybrid surgery, which is a combination of restriction and malabsorption.

View Article and Find Full Text PDF

Weight loss is a popular topic and may be of serious concern for many patients. Even with the abundant literature on obesity and cardiometabolic risk, it is always challenging to demystify and reinforce the determinants of safe approaches to lose weight. Measures of central obesity are essential to characterize the patient's adiposity distribution and should be part of the routine medical examination.

View Article and Find Full Text PDF

Background: Although no receptor has yet been identified, changes in circulating levels of the adipokine designated as Omentin have been demonstrated in obesity and related comorbidities such as cardiovascular disease, insulin resistance, metabolic syndrome and chronic inflammation.

Methods: Changes in Omentin levels at 1 and 5 days and 6 and 12 months in response to biliopancreatic diversion with duodenal switch bariatric surgery were evaluated, specifically to investigate if changes preceded gain of insulin sensitivity.

Results: Pre-operative plasma Omentin was not different between men (n = 18) vs women (n = 48), or diabetic status but correlated with body mass index (BMI).

View Article and Find Full Text PDF

Obesity and diabetes are chronic diseases frequently linked together. Durable weight loss is uncommon with medical/behavioral approaches. For severe obesity, bariatric surgery is the only treatment resulting in sustained weight loss.

View Article and Find Full Text PDF

Purpose: To evaluate the daily steps threshold associated with improved cardiovascular disease risk factors during the first year following an acute coronary syndrome.

Methods: Subjects (N = 41) were recruited during hospitalization for an acute coronary syndrome. A blinded pedometer with a 7-day memory (NL-2000) was used at baseline, 3, 6, 9, and 12 months following hospitalization.

View Article and Find Full Text PDF