Key result
Spinal anesthesia with intercostal paralysis decreases venous pressure irrespective of arterial pressure changes, whereas low spinal anesthesia causes no consistent changes.
Why the study?
Does spinal anesthesia affect venous pressure in humans?
Does spinal anesthesia affect venous pressure in humans?
Spinal anesthesia that causes intercostal paralysis leads to a decrease in venous pressure.
Supports cautious hemodynamic monitoring with intercostal paralysis in spinal anesthesia; leaves open relevance to contemporary practice.
A decrease of venous pressure follows spinal anesthesia accompanied by intercostal paralyses irrespective of arterial pressure changes. A further decrease accompanies a fall of arterial pressure. No consistent changes accompanied low spinal anesthesia.
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Adriani et al. (1940) studied this question. Spinal anesthesia with intercostal paralysis decreases venous pressure irrespective of arterial pressure changes, whereas low spinal anesthesia causes no consistent changes.
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