Short-Term Changes in Cardiovascular Hemodynamics in Response to Bariatric Surgery and Weight Loss Using the Nexfin® Non-invasive Continuous Monitoring Device: a Pilot Study

Sjaak Pouwels*, Bianca Lascaris, Simon W. Nienhuijs, Arthur R. Bouwman, Marc P. Buise

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Web of Science)

Abstract

Compared to healthy individuals, obese have significantly higher systolic and diastolic blood pressure, mean arterial pressure, heart rate, and cardiac output. The aim of this study was to evaluate cardiovascular hemodynamic changes before and 3 months after bariatric surgery.

Patients scheduled for bariatric surgery between the 29th of September 2016 and 24th of March 2016 were included and compared with 24 healthy individuals. Hemodynamic measurements were performed preoperatively and 3 months after surgery, using the NexfinA (R) non-invasive continuous hemodynamic monitoring device (Edwards Lifesciences/BMEYE B.V., Amsterdam, the Netherlands).

Eighty subjects were included in this study, respectively, 56 obese patients scheduled for bariatric surgery and 24 healthy individuals. Baseline hemodynamic measurements showed significant differences in cardiac output (6.5 +/- 1.6 versus 5.7 +/- 1.6 l/min, p = 0.046), mean arterial pressure (107 +/- 19 versus 89 +/- 11 mmHg, p = 0.001), systolic (134 +/- 24 versus 116 +/- 18 mmHg, p = 0.001) and diastolic blood pressure (89 +/- 17 versus 74 +/- 10 mmHg, p = 0.001), and heart rate (87 +/- 12 versus 76 +/- 14 bpm, p = 0.02) between obese and healthy subjects. Three months after surgery, significant changes occurred in mean arterial pressure (89 +/- 17 mmHg, p = 0.001), systolic (117 +/- 24 mmHg, p = 0.001) and diastolic blood pressure (71 +/- 15 mmHg, p = 0.001), stroke volume (82.2 +/- 22.4 ml, p = 0.03), and heart rate (79 +/- 17 bpm, p = 0.02)

Three months after bariatric surgery, significant improvements occur in hemodynamic variables except cardiac output and cardiac index, in the patient group.

Original languageEnglish
Pages (from-to)1835-1841
Number of pages7
JournalObesity Surgery
Volume27
Issue number7
DOIs
Publication statusPublished - Jul 2017

Keywords

  • Bariatric surgery
  • Blood pressure monitoring
  • Nexfin
  • Cardiac physiology
  • Hemodynamics
  • LEFT-VENTRICULAR FUNCTION
  • MORBID-OBESITY
  • GASTRIC BYPASS
  • SLEEVE GASTRECTOMY
  • DIASTOLIC FUNCTION
  • FAVORABLE CHANGES
  • CARDIAC GEOMETRY
  • FINGER PRESSURE
  • WALL THICKNESS
  • FOLLOW-UP

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