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      Effect of Oral Vasopressors Used for Liberation from Intravenous Vasopressors in Intensive Care Unit Patients Recovering from Spinal Shock: A Randomized Controlled Trial

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          Abstract

          Background

          Early vasopressor utilization has been associated with improved outcomes of patients with spinal shock; however, there are difficulties in weaning off vasopressors, in which patients after recovery from spinal shock develop a state of persistent vasodilation, which may take a few days to resolve and delays the discharge in the intensive care unit (ICU). Therefore, we tested the hypothesis using two oral vasopressors (midodrine and minirin) to facilitate weaning off intravenous vasopressors, reducing the ICU length of stay, and compare them for more efficacy.

          Methods

          A randomized controlled trial was conducted in the trauma ICU at the Assiut University Hospital in Egypt in patients with spinal shock who required intravenous vasopressor for ≥24 h. A convenience sample was classified into three groups, in which 30 patients were included for each group. The midodrine group received midodrine 10 mg per oral every 8 h with gradual weaning off intravenous (IV) vasopressor (noradrenaline) after receiving 4 doses, the minirin group received minirin 60  μg per oral every 8 h with gradual weaning off IV vasopressor after receiving 4 doses, whereas the control group received IV vasopressor (noradrenaline) with gradual weaning according to the routine hospital care without adding oral vasopressors. The primary outcome was shortening the duration of IV vasopressor requirements. The secondary outcome was reducing the ICU length of stay.

          Results

          Our results showed that the duration of IV vasopressor requirements in the midodrine (3.3 ± 1.32) and minirin groups (4.8 ± 1.83) was significantly lower than in the control group (6.93 ± 2.32). Additionally, the ICU length of stay (days) in the midodrine (5.13 ± 1.83) and minirin groups (5.5 ± 1.91) was significantly lower than in the control group (9.03 ± 3.74).

          Conclusion

          Midodrine and minirin accelerated liberation from intravenous noradrenaline and effective in reducing the ICU length of stay in patients with spinal shock.

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          Most cited references14

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          A simple method of sample size calculation for linear and logistic regression

          A sample size calculation for logistic regression involves complicated formulae. This paper suggests use of sample size formulae for comparing means or for comparing proportions in order to calculate the required sample size for a simple logistic regression model. One can then adjust the required sample size for a multiple logistic regression model by a variance inflation factor. This method requires no assumption of low response probability in the logistic model as in a previous publication. One can similarly calculate the sample size for linear regression models. This paper also compares the accuracy of some existing sample-size software for logistic regression with computer power simulations. An example illustrates the methods.
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            Cardiovascular complications after acute spinal cord injury: pathophysiology, diagnosis, and management.

            Cardiovascular complications in the acute stage following traumatic spinal cord injury (SCI) require prompt medical attention to avoid neurological compromise, morbidity, and death. In this review, the authors summarize the neural regulation of the cardiovascular system as well as the pathophysiology, diagnosis, and management of major cardiovascular complications that can occur following acute (up to 30 days) traumatic SCI. Hypotension (both supine and orthostatic), autonomic dysreflexia, and cardiac arrhythmias (including persistent bradycardia) are attributed to the loss of supraspinal control of the sympathetic nervous system that commonly occurs in patients with severe spinal cord lesions at T-6 or higher. Current evidence-based guidelines recommend: 1) monitoring of cardiac and hemodynamic parameters in the acute phase of SCI; 2) maintenance of a minimum mean arterial blood pressure of 85 mm Hg during the hyperacute phase (1 week after SCI); 3) timely detection and appropriate treatment of neurogenic shock and cardiac arrhythmias; and 4) immediate and adequate treatment of episodes of acute autonomic dysreflexia. In addition to these forms of cardiovascular dysfunction, individuals with acute SCIs are at high risk for deep venous thrombosis (DVT) and pulmonary embolism due to loss of mobility and, potentially, altered fibrinolytic activity, abnormal platelet function, and impaired circadian variations of hemostatic and fibrinolytic parameters. Current evidence supports a recommendation for thromboprophylaxis using mechanical methods and anticoagulants during the acute stage up to 3 months following SCI, depending on the severity and level of injury. Low-molecular-weight heparin is the first choice for anticoagulant prophylaxis in patients with acute SCI. Although there is insufficient evidence to recommend (or refute) the use of screening tests for DVT in asymptomatic adults with acute SCI, this strategy may detect asymptomatic DVT in at least 9.4% of individuals who undergo thromboprophylaxis using lowmolecular- weight heparin. Indications and treatment of DVT and acute pulmonary embolism are well established and are summarized in this review. Recognition of cardiovascular complications after acute SCI is essential to minimize adverse outcomes and to optimize recovery.
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              Early acute management in adults with spinal cord injury: a clinical practice guideline for health-care professionals.

              (2007)
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                Author and article information

                Contributors
                Journal
                Crit Care Res Pract
                Crit Care Res Pract
                ccrp
                Critical Care Research and Practice
                Hindawi
                2090-1305
                2090-1313
                2022
                18 January 2022
                : 2022
                : 6448504
                Affiliations
                1Anesthesia and Intensive Care Department, Faculty of Medicine, Assiut University, Assiut, Egypt
                2Critical Care and Emergency Nursing Department, Faculty of Nursing, Assiut University, Assiut, Egypt
                Author notes

                Academic Editor: Quincy K. Tran

                Author information
                https://orcid.org/0000-0003-1645-2928
                Article
                10.1155/2022/6448504
                8789437
                35087688
                76fa6712-356e-4fae-9e32-a45a2a336381
                Copyright © 2022 Ahmed Talaat Ahmed Ali et al.

                This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 14 October 2021
                : 3 January 2022
                Categories
                Research Article

                Emergency medicine & Trauma
                Emergency medicine & Trauma

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