Cardiopulmonary exercise testing in the early-phase of myocardial infarction

Abstract

Objective: To evaluate and to compare the cardiorespiratory and metabolic variables at the ventilatory anaerobic threshold level (AT) and at submaximal cardiopulmonary exercise testing (CPET) in both, healthy volunteers and in patients in the early phase after acute myocardial infarction (AMI). Method: Twenty-six volunteers underwent a submaximal or symptom-limited cardiopulmonary exercise testing (CPET) on a cycle ergometer and were divided into AMI group (AMIG=12, 56.33±8.65 years) and healthy group (CG=14, 53.33±3.28 years). The primary outcome measures were the cardiorespiratory and metabolic variables obtained at the peak workload and at the AT of the CPET. precocemente para a avaliação cardiorrespiratória por apresentar alta sensibilidade para detectar alterações de forma segura.Palavras-chave: consumo de oxigênio; infarto do miocárdio; exercício físico; fisioterapia.

Different outcomes of a cardiac rehabilitation programme in functional parameters among myocardial infarction survivors according to ejection fraction

“…Cardiopulmonary exercise testing (CPET), being capable of providing functional information relating to several of these components (namely the cardiovascular, respiratory and muscular systems), is an important tool in the global assessment of individuals undergoing EBCR [11, 12]. Importantly, the association between overall functional capacity (sometimes referred to as cardiorespiratory fitness), as assessed by parameters such as the peak oxygen uptake (pVO 2 ), and CV events in distinct clinical settings has been thoroughly described [13–16].…”

“…Although the importance of EBCR after an AMI is well established, several factors which pertain to its optimal application have not yet been fully ascertained [11, 12, 17]. Importantly, AMI survivors with a reduced ejection fraction (EF) represent a higher-risk subgroup [3] and in some series are referred less often for these programmes [8, 18, 19].…”

Efeito de diferentes modalidades de treinamento físico no consumo de oxigênio de pico em pacientes pós-infarto agudo do miocárdio: uma revisão sistemática e metanálise

“…Cardiopulmonary exercise testing is considered the gold standard for assessment of functional capacity, in terms of peak oxygen consumption (VO2peak). 11 , 12 Many different studies have demonstrated that VO2peak is an independent predictor of mortality in people who have had AMI. 13 - 15 Conversely, a 1 mL.kg -1 .min -1 increase in VO2peak is directly associated with a 10% reduction in risk of CVD mortality.…”

“…Alterações na capacidade de contratilidade do músculo cardíaco impossibilitam a elevação da frequência cardíaca e pressão arterial em baixas cargas de esforço físico, reduzem o duplo produto e geram um limiar isquêmico baixo. O teste cardiopulmonar de exercício é considerado padrão-ouro para avaliação da capacidade funcional, por meio do consumo de oxigênio de pico (VO2pico) 11 , 12 . Diferentes estudos demonstram que o VO2pico é um preditor independente de mortalidade para indivíduos que sofreram IAM 13 - 15 .…”

Unit of oxygen uptake efficiency slope

“…The OUES has been applied to evaluate cardiorespiratory fitness in patients with various diseases as well as in healthy individuals 1,3,4,9,11,15,17, [24][25][26][32][33][34][35]37,44) ; these various diseases include heart diseases 1,4,6,8,9,12-16,18, 21,28,29,33,38,[40][41][42][43][44]46) , orthopedic surgery 5) , gastroenterological surgery 7) , intellectually disabled young people 10) , multiple sclerosis 17, 23,33,39,45) , chronic obstructive pulmonary disease 15,27,33,45) , pulmonary arterial hypertension 19,20,30,36) , lung cancer 22) , severely overweight people 31,32) and cystic fibrosis 34,35) . Despite the high concern regarding the value of OUES, its unit is still unsettled.…”