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FOR AUTHORS Bratislava Medical Journal 2021 Bratislava Medical Journal Vol.122, No.4, p.248–250,2021
FOR AUTHORS Bratislava Medical Journal 2021 Bratislava Medical Journal Vol.122, No.4, p.248–250,2021
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Bratislava Medical Journal Vol.122, No.4, p.248–250,2021 |
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| Title: Acute hemodynamic effects of non-invasive ventilation in patients with obesity hypoventilation syndrome | ||
| Author: P- Pobeha, I. Paranicova, I. Trojova, R. Tkacova, P. Joppa | ||
| Abstract: OBJECTIVE: To evaluate the acute effects of volume-targeted non-invasive ventilation (NIV) on hemodynamic parameters assessed by impedance cardiography in patients with obesity hypoventilation syndrome (OHS). BACKGROUND: Despite the well-described beneficial effects of NIV using volume-targeted pressure support ventilation modes on respiration in OHS patients, questions were raised about the impact of this treatment on the cardiovascular system. METHODS: In 15 patients (10 men; mean age, 55.8±9.3 years) impedance cardiography recordings were taken at baseline, after 120 minutes while on NIV and 20 minutes after NIV termination. A repeated-measures analysis of variance was used for comparisons. RESULTS: Compared to baseline, a reduction in heart rate (from 80±11 to 73±10 beats per min, p<0.05) was observed on NIV whereas the stroke volume and cardiac index remained stable throughout all three assessed intervals (p=0.347, p=0.344; respectively). The pre-ejection period increased on NIV (from 113±16 to 127±20 ms, p<0.05), and the left ventricular ejection time increased after NIV termination compared to baseline (from 259±25 to 269±25 ms, p<0.05). CONCLUSION: Volume-targeted NIV may acutely improve systolic time intervals without any negative impact on the left ventricular function in OHS patients (Tab. 2, Ref. 17). |
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| Keywords: obesity hypoventilation syndrome, obstructive sleep apnoea, hypercapnia, non-invasive ventilation, impedance cardiography, cardiac output | ||
| Published online: 16-Mar-2021 | ||
| Year: 2021, Volume: 122, Issue: 4 | Page From: 248, Page To: 250 | |
| doi:10.4149/BLL_2021_040 |
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