NDLI: Combined milrinone and enteral metoprolol therapy in patients with septic myocardial depression

Content Provider	Springer Nature : BioMed Central
Author	Schmittinger, Christian A Dünser, Martin W Haller, Maria Ulmer, Hanno Luckner, Günter Torgersen, Christian Jochberger, Stefan Hasibeder, Walter R
Abstract	Introduction The multifactorial etiology of septic cardiomyopathy is not fully elucidated. Recently, high catecholamine levels have been suggested to contribute to impaired myocardial function. Methods This retrospective analysis summarizes our preliminary clinical experience with the combined use of milrinone and enteral metoprolol therapy in 40 patients with septic shock and cardiac depression. Patients with other causes of shock or cardiac failure, patients with beta-blocker therapy initiated more than 48 hours after shock onset, and patients with pre-existent decompensated congestive heart failure were excluded. In all study patients, beta blockers were initiated only after stabilization of cardiovascular function (17.7 ± 15.5 hours after shock onset or intensive care unit admission) in order to decrease the heart rate to less than 95 beats per minute (bpm). Hemodynamic data and laboratory parameters were extracted from medical charts and documented before and 6, 12, 24, 48, 72, and 96 hours after the first metoprolol dosage. Adverse cardiovascular events were documented. Descriptive statistical methods and a linear mixed-effects model were used for statistical analysis. Results Heart rate control (65 to 95 bpm) was achieved in 97.5% of patients (n = 39) within 12.2 ± 12.4 hours. Heart rate, central venous pressure, and norepinephrine, arginine vasopressin, and milrinone dosages decreased (all P < 0.001). Cardiac index and cardiac power index remained unchanged whereas stroke volume index increased (P = 0.002). In two patients (5%), metoprolol was discontinued because of asymptomatic bradycardia. Norepinephrine and milrinone dosages were increased in nine (22.5%) and six (15%) patients, respectively. pH increased (P < 0.001) whereas arterial lactate (P < 0.001), serum C-reactive protein (P = 0.001), and creatinine (P = 0.02) levels decreased during the observation period. Twenty-eight-day mortality was 33%. Conclusion Low doses of enteral metoprolol in combination with phosphodiesterase inhibitors are feasible in patients with septic shock and cardiac depression but no overt heart failure. Future prospective controlled trials on the use of beta blockers for septic cardiomyopathy and their influence on proinflammatory cytokines are warranted.
Related Links	https://ccforum.biomedcentral.com/counter/pdf/10.1186/cc6976.pdf
Ending Page	9
Page Count	9
Starting Page	1
File Format	HTM / HTML
ISSN	13648535
DOI	10.1186/cc6976
Journal	Critical Care
Issue Number	4
Volume Number	12
Language	English
Publisher	BioMed Central
Publisher Date	2008-08-04
Access Restriction	Open
Subject Keyword	Intensive Critical Care Medicine Emergency Medicine Septic Shock Metoprolol Beta Blocker Mean Arterial Blood Pressure Milrinone
Content Type	Text
Resource Type	Article
Subject	Critical Care and Intensive Care Medicine
Journal Impact Factor	8.8/2023
5-Year Journal Impact Factor	10.4/2023

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