{"title":"The effects of rate pressure product at admission on cardiopulmonary function during hospitalization in patients with acute myocardial infarction.","authors":"Chun-Mei Zeng, Yan-Mei Zhao, Yi-Yi Li, Rong-Rong Gan, Zheng Ling, Ping Li","doi":"10.1080/00325481.2023.2274306","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to analyze the correlation between the rate pressure product (RPP) and cardiopulmonary function during hospitalization in patients with acute myocardial infarction (AMI).</p><p><strong>Methods: </strong>A total of 362 patients with AMI were selected for the study, and the median admission RPP was used as the cutoff point to divide the patients into a low-RPP group (<i>n</i> = 181) and a high-RPP group (<i>n</i> = 181). The relationship between the RPP at admission and the cardiopulmonary function during hospitalization was analyzed.</p><p><strong>Results: </strong>The patients in the high-RPP group had a higher body mass index (BMI) (<i>p</i> = 0.014), a higher prevalence of combined hypertension and diabetes mellitus (<i>p</i> < 0.001), a lower incidence of smoking (<i>p</i> = 0.044), and a higher incidence of oscillatory ventilation (6.1% vs. 1.7%, <i>p</i> = 0.029). The differences in RPP at rest, during warm-up, and within 1 and 4 minutes of recovery were statistically significant between the two groups (<i>p</i> < 0.01 on each occasion), while the differences in anaerobic threshold (AT) and watt max (Max) were not statistically significant (<i>p</i> > 0.05 for both). The patients in the low-RPP group had higher oxygen uptake (VO<sub>2</sub> [AT]: 14.9 ± 3.4 vs. 14.2 ± 3.6, <i>p</i> = 0.048) and (VO<sub>2peak</sub> [Max]:18.2 ± 3.8 vs. 17.3 ± 3.8, <i>p</i> = 0.020). The RPP at admission was negatively correlated with VO<sub>2</sub> (AT) and VO<sub>2peak</sub> (<i>p</i> < 0.05) using the regression Equation VO<sub>2peak</sub> = 33.682 + (-0.012 * RPP at admission/100) + (-0.105 * Age) + (-0.350 * BMI), while there was no correlation between the RPP at admission and VO<sub>2</sub> (AT) (<i>p</i> = 0.149).</p><p><strong>Conclusion: </strong>The RPP at admission was negatively correlated with cardiopulmonary function during hospitalization in patients with AMI. Patients with a high RPP were more likely to have a combination of obesity, hypertension, diabetes mellitus, and reduced oxygen uptake during exercise, while a high RPP at admission appeared to affect their cardiovascular response indicators during exercise.</p>","PeriodicalId":94176,"journal":{"name":"Postgraduate medicine","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Postgraduate medicine","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/00325481.2023.2274306","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/1/10 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
Objective: This study aimed to analyze the correlation between the rate pressure product (RPP) and cardiopulmonary function during hospitalization in patients with acute myocardial infarction (AMI).
Methods: A total of 362 patients with AMI were selected for the study, and the median admission RPP was used as the cutoff point to divide the patients into a low-RPP group (n = 181) and a high-RPP group (n = 181). The relationship between the RPP at admission and the cardiopulmonary function during hospitalization was analyzed.
Results: The patients in the high-RPP group had a higher body mass index (BMI) (p = 0.014), a higher prevalence of combined hypertension and diabetes mellitus (p < 0.001), a lower incidence of smoking (p = 0.044), and a higher incidence of oscillatory ventilation (6.1% vs. 1.7%, p = 0.029). The differences in RPP at rest, during warm-up, and within 1 and 4 minutes of recovery were statistically significant between the two groups (p < 0.01 on each occasion), while the differences in anaerobic threshold (AT) and watt max (Max) were not statistically significant (p > 0.05 for both). The patients in the low-RPP group had higher oxygen uptake (VO2 [AT]: 14.9 ± 3.4 vs. 14.2 ± 3.6, p = 0.048) and (VO2peak [Max]:18.2 ± 3.8 vs. 17.3 ± 3.8, p = 0.020). The RPP at admission was negatively correlated with VO2 (AT) and VO2peak (p < 0.05) using the regression Equation VO2peak = 33.682 + (-0.012 * RPP at admission/100) + (-0.105 * Age) + (-0.350 * BMI), while there was no correlation between the RPP at admission and VO2 (AT) (p = 0.149).
Conclusion: The RPP at admission was negatively correlated with cardiopulmonary function during hospitalization in patients with AMI. Patients with a high RPP were more likely to have a combination of obesity, hypertension, diabetes mellitus, and reduced oxygen uptake during exercise, while a high RPP at admission appeared to affect their cardiovascular response indicators during exercise.
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