Key result
Bilateral carotid body resection was associated with large reductions in systolic (-17±7 mm Hg) and mean (-14±5 mm Hg) blood pressure and blunted heart rate increases during hypoglycemia.
Why the study?
Does bilateral carotid body resection alter cardiac baroreflex control of blood pressure and heart rate during hypoglycemia compared to healthy controls?
Case-Control (n=15)
Does bilateral carotid body resection alter cardiac baroreflex control of blood pressure and heart rate during hypoglycemia compared to healthy controls?
p-value: p=<0.05
Intact carotid chemoreceptors are essential for increasing heart rate and maintaining arterial blood pressure during hypoglycemia in humans.
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Carotid body resection may impair hypoglycemia counter-regulation; supports carotid chemoreceptor role but leaves open therapeutic implications.
Limberg et al. (2015) conducted a case-control in Bilateral carotid body resection (n=15). Bilateral carotid body resection vs. Healthy controls was evaluated on Changes in heart rate, blood pressure, and spontaneous cardiac baroreflex sensitivity (p=<0.05). Bilateral carotid body resection was associated with large reductions in systolic (-17±7 mm Hg) and mean (-14±5 mm Hg) blood pressure and blunted heart rate increases during hypoglycemia.
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