Effectiveness of Human Atrial Natriuretic Peptide Supplementation in Pulmonary Edema Patients Using the Pulse Contour Cardiac Output System
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Purpose: Atrial natriuretic peptide (ANP) has a variety of pharmacologic effects,including natriuresis, diuresis, vasodilatation, and suppression of the reninangiotensin system. A recent study showed that ANP infusion improved hypoxemia and pulmonary hypertension in a lung injury model. On the other hand, the pulse contour cardiac output (PiCCOTM) system (Pulsion Medical Systems, Munich, Germany) allows monitoring of the intravascular volume status and may be used to guide volume therapy in severe sepsis and critically ill patients. Materials and Methods: We treated 10 pulmonary edema patients without heart disease with human ANP (HANP). The patients were divided into two groups: a group with normal Intrathoracic Blood Volume (ITBV) (900-1100mL/m2) (n = 6), and a group with abnormal ITBV (n = 4), as measured by the PiCCOTM device; the extravascular lung water (EVLW) and pulmonary vascular permeability index (PVPI) in the two groups were compared. Results: The average patient age was 63.9 ± 14.4 years. The normal ITBV group showed significant improvement of the EVLW (before, 16.7 ± 2.7 mL/kg; after, 10.5 ± 3.6mL/kg; p = 0.0020) and PVPI (before, 3.2 ± 0.3; after, 2.1 ± 0.7; p = 0.0214) after the treatment. The abnormal ITBV group showed no significant improvement of either the EVLW (before, 16.3 ± 8.9 mL/kg; after, 18.8 ± 9.6 mL/kg; p = 0.8387)or PVPI (before, 2.3 ± 0.8; after, 2.7 ± 1.3; p = 0.2782) after the treatment. In both groups, the EVLW and PVPI were strongly correlated with the chest X-ray findings. Conclusion: We conclude that HANP supplementation may improve the EVLW and PVPI in pulmonary edema patients without heart disease with a normal ITBV. The PiCCOTM system seems to be a useful device for the management of pulmonary edema.
Abstract
Purpose: Atrial natriuretic peptide (ANP) has a variety of pharmacologic effects,including natriuresis, diuresis, vasodilatation, and suppression of the reninangiotensin system. A recent study showed that ANP infusion improved hypoxemia and pulmonary hypertension in a lung injury model. On the other hand, the pulse contour cardiac output (PiCCOTM) system (Pulsion Medical Systems, Munich, Germany) allows monitoring of the intravascular volume status and may be used to guide volume therapy in severe sepsis and critically ill patients. Materials and Methods: We treated 10 pulmonary edema patients without heart disease with human ANP (HANP). The patients were divided into two groups: a group with normal Intrathoracic Blood Volume (ITBV) (900-1100mL/m2) (n = 6), and a group with abnormal ITBV (n = 4), as measured by the PiCCOTM device; the extravascular lung water (EVLW) and pulmonary vascular permeability index (PVPI) in the two groups were compared. Results: The average patient age was 63.9 ± 14.4 years. The normal ITBV group showed significant improvement of the EVLW (before, 16.7 ± 2.7 mL/kg; after, 10.5 ± 3.6mL/kg; p = 0.0020) and PVPI (before, 3.2 ± 0.3; after, 2.1 ± 0.7; p = 0.0214) after the treatment. The abnormal ITBV group showed no significant improvement of either the EVLW (before, 16.3 ± 8.9 mL/kg; after, 18.8 ± 9.6 mL/kg; p = 0.8387)or PVPI (before, 2.3 ± 0.8; after, 2.7 ± 1.3; p = 0.2782) after the treatment. In both groups, the EVLW and PVPI were strongly correlated with the chest X-ray findings. Conclusion: We conclude that HANP supplementation may improve the EVLW and PVPI in pulmonary edema patients without heart disease with a normal ITBV. The PiCCOTM system seems to be a useful device for the management of pulmonary edema.
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