Muscle membrane properties in A pig sepsis model: Effect of norepinephrine.

Boërio, Delphine; Corrêa, Thiago D; Jakob, Stephan; Ackermann, Karin A; Bostock, Hugh; Z'Graggen, Werner Josef (2018). Muscle membrane properties in A pig sepsis model: Effect of norepinephrine. Muscle & nerve, 57(5), pp. 808-813. John Wiley & Sons 10.1002/mus.26013

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INTRODUCTION Sepsis-induced myopathy and critical illness myopathy are common causes of muscle weakness in intensive care patients. This study investigated the effect of different mean arterial blood pressure (MAP) levels on muscle membrane properties following experimental sepsis. METHODS Sepsis was induced with fecal peritonitis in 12 of 18 anesthetized and mechanically ventilated pigs. Seven were treated with a high (75-85 mmHg) and 5 were treated with a low (≥60 mmHg) MAP target for resuscitation. In septic animals, resuscitation was started 12 h after peritonitis induction, and muscle velocity recovery cycles were recorded 30 h later. RESULTS Muscles in the sepsis/high MAP group showed an increased relative refractory period and reduced early supernormality compared with the remaining septic animals and the control group, indicating membrane depolarization and/or sodium channel inactivation. The membrane abnormalities correlated positively with norepinephrine dose. DISCUSSION Norepinephrine may contribute to sepsis-induced abnormalities in muscle by impairing microcirculation. Muscle Nerve, 2017.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Intensive Care, Emergency Medicine and Anaesthesiology (DINA) > Clinic of Intensive Care
04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurosurgery

UniBE Contributor:

Jakob, Stephan and Z'Graggen, Werner Josef

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0148-639X

Publisher:

John Wiley & Sons

Language:

English

Submitter:

Nicole Söll

Date Deposited:

30 Jan 2018 13:45

Last Modified:

26 Oct 2019 05:48

Publisher DOI:

10.1002/mus.26013

PubMed ID:

29130505

Uncontrolled Keywords:

ICU-acquired weakness critical illness myopathy electromyography electrophysiology experimental sepsis norepinephrine

BORIS DOI:

10.7892/boris.107944

URI:

https://boris.unibe.ch/id/eprint/107944

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