[Place du ballon de contre pulsion intra aortique dans l'infarctus aigu du myocarde compliqué par état de choc cardiogénique]. / Intra-aortic balloon pump in acute myocardial infarction and cardiogenic shock, efficiency, safety and mortality risk factors.

BACKGROUND AND METHODS: Cardiogenic shock remains one of the leading causes of death in patients with myocardial infarction. The Intra-aortic balloon pump (IABP) has been widely used as a treatment for acute myocardial infarction (AMI), despite recommendations against its routine use. In this paper, our aim is to analyze and share our own experience with IABP in the setting of AMI. We retrospectively reviewed the files of patients admitted with AMI and cardiogenic shock and for whom IABP was inserted between June 2016 and December 2022. RESULTS: 300 patients with AMI and cardiogenic shock were admitted and benefited from IABP insertion and primary coronary revascularization. The overall mortality rate was 62.3%, the site related complication rate was 0.6%, and the overall complications rate (including site related and major bleeding) was 10.6%. There was a significantly higher mortality in the group of patients where the Left Anterior Descending artery (LAD) was the culprit lesion, in the group of patients who required dialysis, the group who had creatinine levels greater than 200 um/L compared to the group who had creatinine lower than 200 um/L, and in patients older than 70 years. Interestingly, no difference in mortality was observed between men and women, single versus multiple vessel disease, and between STEMI and non-STEMI patients. CONCLUSION: Mortality of AMI complicated by cardiogenic shock and treated by IABP remains high. However, IABP usage is associated with a low complication rate. Better selection criteria for IABP usage versus other more powerful mechanical circulatory support devices in such patients might improve the outcome for the patient.

[Reverse Takotsubo ou myocardite fulminante ? Succès de VA ECMO chez une patiente ayant une atteinte cardiaque liée COVID 19]. / Reverse TakoTsubo or Fulminant myocarditis ? Life saving VA ECMO in a COVID 19 patient.

A 45 years old female patient was admitted to our facility for COVID -19 infection complicated by fulminant cardiac injury and refractory cardiogemic shock. She had echographic findings of reverse takotsubo cardiomyopathy. She was successfully treated by VA-ECMO allowing complete revocery of the left ventricule function and weaning from support.

Acute effects of waterpipe smoking on blood pressure and heart rate: a real-life trial.

BACKGROUND: Waterpipe smoking is becoming a popular way of tobacco use in the world. Its acute effects on the cardiovascular system are not well investigated. MATERIALS AND METHODS: This is a trial designed to evaluate the acute effects of waterpipe smoking on blood pressure (BP) and heart rate (HR) in healthy adults. Individuals who ordered waterpipe in 6 Lebanese restaurants were enrolled (cases) and were compared to controls who consisted of subjects who were sitting at the same table of smokers but who did not smoke (passive smokers) and of subjects who were sitting in nonsmoking sections (nonsmokers). BP and HR were measured immediately before and 15 min after smoking or at baseline and 15 min later in controls. RESULTS: A total of 194 subjects were enrolled: 101 waterpipe smokers, 51 passive smokers, and 42 nonsmokers. Systolic and diastolic BP and HR significantly increased after 15 min of smoking in cases (mean 3.1 mm Hg (95% CI 0.8-5.5; p = 0.009) for systolic BP, 2.1 mm Hg (95% CI 0-4.2; p = 0.053) for diastolic BP, and 6.3 beats/minute (95% CI 4.3-8.3; p < 0.001) for HR, but did not change in controls. CONCLUSIONS: Waterpipe smoking for duration as short as 15 min has acute hemodynamic effects and significantly increases systolic BP and HR.

Cerebellar hematoma complicating 600 mg loading dose of clopidogrel in combination with tirofiban.

A patient admitted for coronary angioplasty received a loading dose of Clopidogrel 600 mg, in combination with an infusion of Tirofiban and one prophylactic dose of Enoxaparin. He developed massive cerebellar hemorrhage and underwent urgent surgery. Recovery was fortunately complete and reintroduction of antiplatelet agents was guided by platelet aggregation inhibition test.

Clinical perspectives of heart rate slowing for coronary event reduction and heart failure.

Heart rate is a major determinant of myocardial oxygen consumption. There is ample evidence of an association between high heart rate and poor outcome in numerous clinical settings. Experimental studies in monkeys have shown a link between increased heart rate and development of atherosclerosis. In the clinical setting, increased heart rate has been found associated with coronary plaque rupture. A causal relationship is further supported by the fact that Beta-blockers have a well-documented efficacy after myocardial infarction, although the other properties of these agents may also participate in their protective effect. Beyond the potential benefits of heart rate lowering in patients with coronary artery disease, medications capable of decreasing heart rate without altering left ventricular function, such as the I(f) current inhibitor ivabradine, might prove particularly helpful in patients with chronic heart failure associated with coronary artery disease, but also in heart failure without systolic dysfunction, or in patients needing inotropic support for acute heart failure.

Angiotensin-converting enzyme inhibitors in patients with coronary artery disease and absence of heart failure or left ventricular systolic dysfunction: an overview of long-term randomized controlled trials.

BACKGROUND: Results of randomized trials of angiotensin-converting enzyme inhibitors in patients with coronary artery disease (CAD) and preserved left ventricular function are conflicting. We undertook this study to determine whether long-term prescription of angiotensin-converting enzyme inhibitors decreases major cardiovascular events and mortality in patients who have CAD and no evidence of left ventricular systolic dysfunction. METHODS: We searched MEDLINE, EMBASE, and IPA databases, the Cochrane Controlled Trials Register (1990-2004), and reports from scientific meetings (2003-2004), and we reviewed secondary sources. Search terms included angiotensin-converting enzyme inhibitors, coronary artery disease, randomi(s)zed controlled trials, clinical trials, and myocardial infarction. Eligible studies included randomized controlled trials in patients who had CAD and no heart failure or left ventricular dysfunction, with follow-up omicronf 2 years or longer. Of 1146 publications screened, 7 met our selection criteria and included a total of 33 960 patients followed up for a mean of 4.4 years. RESULTS: Five trials included only patients with documented CAD. One trial included patients with documented CAD (80%) or patients who had diabetes mellitus and 1 or more additional risk factors, and another trial included patients who had CAD, a history of transient ischemic attack, or intermittent claudication. Treatment with angiotensin-converting enzyme inhibitors decreased overall mortality (odds ratio, 0.86; 95% confidence interval, 0.79-0.93), cardiovascular mortality (odds ratio, 0.81; 95% confidence interval, 0.73-0.90), myocardial infarction (odds ratio, 0.82; 95% confidence interval, 0.75-0.89), and stroke (odds ratio, 0.77; 95% confidence interval, 0.66-0.88). Other end points, including resuscitation after cardiac arrest, myocardial revascularization, and hospitalization because of heart failure, were also reduced. CONCLUSION: Angiotensin-converting enzyme inhibitors reduce total mortality and major cardiovascular end points in patients who have CAD and no left ventricular systolic dysfunction or heart failure.

Impact of combined secondary prevention therapy after myocardial infarction: data from a nationwide French registry.

BACKGROUND: Several classes of medications improve survival in patients with coronary artery disease. Whether these medications, as used in the real world, have additive efficacy remains speculative. OBJECTIVES: To assess whether patients discharged on combined secondary prevention medications after acute myocardial infarction (AMI) have improved 1-year survival, compared with the action of any single class of medications. DESIGN AND SETTING: Nationwide registry of consecutive patients admitted to intensive care units for AMI in November 2000 in France. Multivariate Cox regression analysis, including a propensity score for the prescription of combined therapy, was used. RESULTS: Of the 2119 patients discharged alive, 1095 (52%) were prescribed a combination of antiplatelet agents, beta-blockers, and statins (triple therapy), of whom 567 (27%) also received angiotensin-converting enzyme inhibitors (quadruple therapy) and 528 (25%) did not. One-year survival was 97% in patients receiving triple combination therapy versus 88% in those who received either none, 1, or 2 of these medications (P < .0001). After multivariate adjustment including the propensity score, the hazard ratio for 1-year mortality in patients with triple combination therapy was 0.52 (95% CI 0.33-0.81). In patients with ejection fraction < or = 35%, beta-blockers and angiotensin-converting enzyme inhibitors were independent predictors of survival, and combination therapy had no additional prognostic value. CONCLUSIONS: Compared with the prescription of any single class of secondary prevention medications, combination therapy offers additional protection in patients with AMI.

[Choosing the right medication for the right patient]. / Quels medicaments pour quels patients?

Over the past 15 years, the efficacy of several classes of medications on the prevention and treatment of atherosclerosis has been documented. The objectives of medical therapy are triple: to avoid or control the evolution of the atherosclerotic process, control associated risk factors, and, whenever appropriate, to control symptoms. Four classes of medications have documented a major clinical benefit by decreasing mortality and severe adverse cardiovascular events: antiplatelet agents, beta-blockers, statins and ACE inhibitors. These medications should therefore constitute first line therapy. Beside the use of medications, life style changes (Mediterranean diet, physical exercise, smoking cessation) are also necessary.