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Cardiovascular Concerns in Spinal Cord Injury: Follow-up
Updated: Feb 15, 2008
Follow-up
Further Inpatient Care
- As discussed previously, hypotension and bradycardia typically improve within days to weeks, and the patient can be weaned off medications.
- Patients with complete cervical injuries often have relatively low resting pulse rates and blood pressures.
- Discontinue conservative measures only after medications have been stopped and the patient is doing well.
- Patients frequently continue to need an abdominal binder and anti-embolism stockings (eg, TED hose) for orthostasis and to control lower-extremity edema after discharge.
- Many patients need to use a wheelchair with a reclining or tilt-in-space mechanism to allow for quick achievement of a supine posture if they become dizzy or light-headed.
Complications
- Weight gain and obesity after SCI are not uncommon.36
- Physical inactivity, decreased energy expenditure, and the secondary effects of muscle paralysis decrease muscle and lean body mass, increase the percentage of body fat, increase insulin resistance, and increase the risk for CHD.21
- Dietary guidelines suggest that reductions be made in the patient's intake of calories, fat (<30% of calories), and cholesterol (<300 mg).25 However, some have noted that dietary intervention has shown limited effectiveness because of the concomitant depression of HDL-C concentrations with TC levels.
Patient Education
- The education of patients, their families, and staff members is extremely important for the recognition and management of cardiovascular complications (eg, low blood pressure, orthostasis, bradycardia, autonomic dysreflexia, DVT, CHD).
- Teach patients to recognize the clinical symptoms and to report them immediately.
- For orthostatic hypotension, family and staff members must respond quickly by reclining the patient and elevating his/her legs.
- Staff and family must understand that patients should never be left unattended after being placed in a sitting position, because their blood pressure may drop and cause syncope before they can call for help. This precaution is particularly applicable to patients with tetraplegia who may not have access to a bedside call button.
- Education about the reasons for medications, abdominal binders, anti-embolism stockings (eg, TED hose), and elastic bandages (ACE wraps) is important to ensure compliance.
- Education of the respiratory and nursing staff is important to prevent bradycardia resulting from increased vagal tone; this is particularly the case in patients with a tracheostomy, during endotracheal suctioning.18,3 If necessary, hyperventilate patients and administer atropine before suctioning.
Miscellaneous
Medicolegal Pitfalls
- Immediately after acute SCI, differentiate neurogenic shock from hypovolemic shock. In the absence of other injuries, patients with low blood pressure resulting from SCI do not need aggressive fluid resuscitation. In fact, patients with tetraplegia commonly develop pulmonary edema if given too much volume. The etiology of this phenomenon is not clear, but it may be related to decreased pulmonary vascular resistance and/or a lack of sympathetic innervation to the lungs. Therefore, following resuscitation with about 2 L, start pressors to maintain blood pressure after hypovolemia due to other trauma has been ruled out.
- Monitor patients with acute cervical SCI for cardiac arrhythmias, because bradycardia and tachyarrhythmias are common. As mentioned previously, hypoxia and vagal stimulation can cause bradycardia, leading to asystole. Therefore, close observation, repeat medication with atropine, and hyperventilation may be necessary when endotracheal suctioning procedures are performed.
- Never leave a patient alone in a sitting position until after his/her blood pressure has stabilized, because the individual may become hypotensive and syncopic before being able to call for help.
More on Cardiovascular Concerns in Spinal Cord Injury |
| Overview: Cardiovascular Concerns in Spinal Cord Injury |
| Differential Diagnoses & Workup: Cardiovascular Concerns in Spinal Cord Injury |
| Treatment & Medication: Cardiovascular Concerns in Spinal Cord Injury |
Follow-up: Cardiovascular Concerns in Spinal Cord Injury |
| References |
| « Previous Page |
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Further Reading
Keywords
cardiovascular concerns in spinal cord injury, neurogenic shock, orthostatic hypotension, spinal cord injury, SCI, autonomic nervous system, ANS, autonomic dysreflexia, deep vein thrombosis, DVT, coronary heart disease, CHD, bradycardia
Follow-up: Cardiovascular Concerns in Spinal Cord Injury