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Paper Information

Journal:   JOURNAL OF CARDIOVASCULAR AND THORACIC RESEARCH   2018 , Volume 10 , Number 1; Page(s) 28 To 35.
 
Paper: 

COMPARATIVE STUDY OF SHORT-TERM CARDIOVASCULAR AUTONOMIC CONTROL IN CARDIAC SURGERY PATIENTS WHO UNDERWENT CORONARY ARTERY BYPASS GRAFTING OR CORRECTION OF VALVULAR HEART DISEASE

 
 
Author(s):  SHVARTZ VLADIMIR A., KISELEV ANTON R.*, KARAVAEV ANATOLY S., VULF KRISTINA A., BOROVKOVA EKATERINA I., PROKHOROV MIKHAIL D., PETROSYAN ANDREY D., BOCKERIA OLGA L.
 
* DEPARTMENT OF SURGICAL TREATMENT FOR INTERACTIVE PATHOLOGY, BAKULEV SCIENTIFIC CENTER FOR CARDIOVASCULAR SURGERY, MOSCOW, RUSSIA
 
Abstract: 

Introduction: Our aim was to perform a comparative study of short-term cardiovascular autonomic control in cardiac surgery patients who underwent coronary artery bypass grafting (CABG) or surgical correction of valvular heart disease (SCVHD).
Methods: The synchronous 15 minutes records of heart rate variability (HRV) and finger’s photoplethysmographic waveform variability (PPGV) were performed in 42 cardiac surgery patients (12 women) aged 61.8 ± 8.6 years (mean ± standard deviation), who underwent CABG, and 36 patients (16 women) aged 54.2 ± 14.9 years, who underwent SCVHD, before surgery and in 5-7 days after surgery. Conventional time and frequency domain measures of HRV and index S of synchronization between the slow oscillations in PPGV and HRV were analyzed. We also calculated personal dynamics of these indices after surgery.
Results: We found no differences (?>0.05) in all studied autonomic indices (preoperative and post-surgery) between studied patients’ groups, except for the preoperative heart rate, which was higher in patients who underwent SCVHD (P=0.013). We have shown a pronounced preoperative and post-surgery variability (magnitude of inter-quartile ranges) of all autonomic indices in studied patients. In the cluster analysis based on cardiovascular autonomic indices (preoperative and post-surgery), we divided all patients into two clusters (38 and 40 subjects) which did not differ in all clinical characteristics (except for the preoperative hematocrit, P=0.038), index S, and all post-surgery HRV indices. First cluster (38 patients) had higher preoperative values of the HR, TP, HF, and HF%, and lower preoperative values of the LF% and LF/HF.
Conclusion: The variability of cardiovascular autonomic indices in on-pump cardiac surgery patients (two characteristic clusters were identified based on preoperative indices) was not associated with their clinical characteristics and features of surgical procedure (including cardioplegia).

 
Keyword(s): CARDIOVASCULAR AUTONOMIC CONTROL, CORONARY ARTERY BYPASS GRAFTING, VALVULAR HEART DISEASE, HEART RATE VARIABILITY, SLOW OSCILLATIONS
 
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