The first patient initially had hypertension and tachycardia, which was followed by hypotension and bradycardia, suggesting vagotonia, a feature characteristic of the later presentation of TTS [2,3]. Attempting to Avoid the ‘Supine Hypotensive Syndrome’, Anaesthesia and Intensive Care, 10.1177 ... Researches on supine hypotension in pregnancy, International Congress Series ... S.M. A pulse of < 60 bpm is considered bradycardia in adults, whereas in newborns a pulse < 60 bpm with evidence of low perfusion considered a reflection of a life threatening situation where chest compressions are recommended to be started. B. blood pressure decreases as a result of hypovolemia. We describe herein a case of a patient with chronic labile hypertension who presented to the ED with a sharp drop in blood pressure and heart rate which was … If the sinus bradycardia is producing symptoms, it is abnormal and needs to be treated. reports of this phenomenon noted that sudden bradycardia occurred in some cases,45 47 and Lees and co-workers linked this ‘supine hypotensive syndrome of pregnancy’ with vasovagal fainting.47 Regional anaesthesia Spinal and epidural anaesthesia can prevent reﬂex vaso-constriction in the blocked segments. To evaluate exercise induced hypotension, responses are obtained during graded incremental supine exercise using a bicycle ergometer with measurement of postural responses before and after exercise. Sinus bradycardia is considered a problem if the heart rate is too slow to meet the body’s needs. Supine hypotensive syndrome is characterized by severe supine symptoms and hypotension in late pregnancy, which compel the unconstrained subject to change position. Keywords Bradycardia Decreased blood pressure Supination Compression of the aorta Compression of inferior vena cava Left uterine displacement An early report of supine hypotensive syndrome in pregnancy describes a woman who had a Caesarean section because it was thought that she was hypovolaemic secondary to a ruptured uterus.63 The syndrome is not usually of serious consequence in isolation, because once recognized it is rapidly relieved by a change in position. ABSTRACT. Supine hypotensive syndrome occurs when: Choose one answer. A precipitous episode of hypotension with concomitant bradycardia is a true medical emergency especially in patients with chronic hypertension and often requires hospitalization for detailed interrogation of the underlying causes. If the heart rate becomes so slow that not enough blood is being pumped by the heart, symptoms can develop. A. the pregnant uterus compresses the inferior vena cava. Although some Supine hypertension–orthostatic hypotension (SH/OH) is a form of autonomic dysfunction characterized by hypertension when patients are supine and a clinically significant drop in blood pressure when they assume an upright posture.Treatment of this group of patients can be very challenging. C. the superior vena cava is compressed by the uterus. D. a supine position kinks the ascending aorta. Bradycardia, Hypotension, and Midventricular Takotsubo Syndrome during Esophagogastroduodenoscopy. This chapter defines supine hypotensive syndrome and its causes and treatment.