Perioperative changes in magnesium after thoracic surgery Meeting Abstract
| Authors: | Amar, D.; Toth, C.; Fleisher, M.; Downey, R. J. |
| Abstract Title: | Perioperative changes in magnesium after thoracic surgery |
| Meeting Title: | CHEST World Congress 1996 |
| Abstract: | Purpose: Supraventricular dysrhythmias (SVD) after non-cardiac thoracic surgery occur in 10%-25% of patients and have been attributed to acute decrements in serum magnesium (Mg+2). Actual data on alterations in serum Mg+2 concentrations after lung resection are sparse. Methods: We studied 16 patients scheduled for major pulmonary resection. Excluded were patients receiving β-blockers or Ca+2-antagonists. Heparinized arterial blood samples for serum Mg+2 and Ca+2 (for comparison) were obtained before surgery (PRE), on arrival to the post-anesthesia care unit (PACU) and on the morning of postoperative day (POD) 1. Data (mean±SD) were analyzed using a Student t-test and P <0.05 was considered significant. Results: Of the 16 patients (8M/8F) aged 65±15 yr., 15 had undergone a lobectomy and one a pneumonectomy. When compared to baseline, there were no significant differences in serum magnesium or calcium postoperatively (Table). PRE PACU POD1 Mg+2 (mmol/L) 0.8±0.1 0.7±0.1 0.8±0.1 Ca+2 (mmol/L) 2.2±0.1 2.1±0.1 2.1±0.1 Conclusions: Serum concentrations of Mg+2 and Ca+2 did not change significantly within 24h of major thoracic surgery. These preliminary data do not support an important contribution of decreases in serum Mg+2 to SVD generation. However, because SVD often occur 24-48 hours after thoracic surgery, future studies may explore whether Mg+2 alterations later in the postoperative period are associated with an increased incidence of SVD. |
| Journal Title: | Chest |
| Volume: | 110 |
| Issue: | 4 Suppl. |
| Meeting Dates: | 1996 Oct 27-31 |
| Meeting Location: | San Francisco, CA |
| ISSN: | 0012-3692 |
| Publisher: | American College of Chest Physicians |
| Date Published: | 1996-10-01 |
| Start Page: | 215S |
| Language: | English |
| PROVIDER: | scopus |
| DOI: | 10.1378/chest.110.4_Supplement.210S |
| PUBMED: | 8885851 |
| DOI/URL: | |
| Notes: | Meeting Abstract -- Export Date: 22 November 2017 -- Source: Scopus |
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