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Head-Up Tilt (HUT) Table Testing
Published in Andrea Natale, Oussama M. Wazni, Kalyanam Shivkumar, Francis E. Marchlinski, Handbook of Cardiac Electrophysiology, 2020
Subramanya Prasad, Amer Kadri, J. David Burkhardt, Thomas Dresing, Kenneth Mayuga
After excluding orthostatic BP changes at baseline, and obtaining peripheral venous access, the patient should rest in the supine position for 20–45 min to decrease the likelihood of a vasovagal response due to venous cannulation.
Regional anaesthesia
Published in Daryl Dob, Griselda Cooper, Anita Holdcroft, Philip Steer, Gwyneth Lewis, Crises in Childbirth Why Mothers Survive, 2018
Michael Kinsella, Daryl Dob, Anita Holdcroft
However, with increasing blood loss there is an increasing likelihood of the appearance of an opposing vasodepressor (vasovagal) response.20 Although the afferent receptors for this are not fully recognised in humans, the efferent response is the same as baroreceptor stimulation from high arterial pressure. Parasympathetic activation and sympathetic suppression produce ‘paradoxical’ bradycardia, vasodilation and hypotension. Vasovagal responses are seen in 50% of non-pregnant subjects after blood loss of 1000–1200 ml. Relative or absolute bradycardia in the presence of blood loss must prompt careful assessment of the circulation.
Autonomic dysfunction in dementia with Lewy bodies
Published in John O'Brien, Ian McKeith, David Ames, Edmond Chiu, Dementia with Lewy Bodies and Parkinson's Disease Dementia, 2005
Rose Anne Kenny, Louise M Allan
argue that hypotension occurring beyond the first 3 minutes should be classified as a vasovagal response. Yoshita et al (2001) did include a control group of 14 AD patients, only 4 of whom had OH. The method of blood pressure measurement is not given in either of these studies.
Management of pulmonary arterial hypertension during pregnancy
Published in Expert Review of Respiratory Medicine, 2023
Kaushiga Krishnathasan, Andrew Constantine, Isma Rafiq, Ana Barradas Pires, Hannah Douglas, Laura C Price, Konstantinos Dimopoulos
Several contraceptive options are available, and collaborative decision-making should be based on patient preference and clinical efficacy and safety profiles. Oral contraceptives include the combined pill and the progesterone-only pill. The latter is preferred due to the greater risk of venous and arterial thromboembolism associated with estrogen in the combined oral contraceptive pill. Progesterone is also available as a subcutaneous implant, inserted under local anesthesia [1,7,48]. Intrauterine devices such as copper and levonorgestrel-coated coils are available. Insertion of such devices is associated with a small risk of a vasovagal response, which can be pronounced in patients with PAH and therefore insertion is usually arranged in a hospital setting [3]. Barrier contraception, such as condoms and diaphragms, can protect from sexually transmitted disease but are not considered reliable forms of contraception in PAH due to contraceptive failure rates and the risk of unplanned pregnancy [1,7].
Intralesional injection of vitamin D3 versus zinc sulfate 2% in treatment of plantar warts: a comparative study
Published in Journal of Dermatological Treatment, 2021
Wafaa M. Abd El-Magid, Essam Eldein A. Nada, Reem A. Mossa
Regarding adverse effects of intralesional vitamin D3 injection, only one patient suffered from mild pain after session which resolved spontaneously within 24 h and another one suffered from hematoma. No signs of hypervitaminosis D or hypercalcemia, and no recurrence were observed. Vasovagal response remarkably attacked 40% of vitamin D3 injected patients. This response was mainly in the form of difficult breathing and coughing, and resolved spontaneously within 1–2 min. Reported side effects in previously mentioned studies included transient pain during injection, edema, erythema, and hyperpigmentation. Recurrence affected one patient in one study (19), and two patients in another study (20). No vasovagal response was reported.
Safety and tolerability of IV ketamine in adults with major depressive or bipolar disorder: results from the Canadian rapid treatment center of excellence
Published in Expert Opinion on Drug Safety, 2020
Nelson B. Rodrigues, Roger S. McIntyre, Orly Lipsitz, Yena Lee, Danielle S. Cha, Flora Nasri, Hartej Gill, Leanna M.W. Lui, Mehala Subramaniapillai, Kevin Kratiuk, Kangguang Lin, Roger Ho, Rodrigo B. Mansur, Joshua D. Rosenblat
The overall attrition rate was 4.93% (n = 10) due to tolerability concerns. Five patients withdrew after a single infusion, 4 patients withdrew after two infusions, and one individual withdrew after the third infusion. Three patients stopped treatment due to intolerable nausea and 7 patients withdrew due to heightened anxiety due to dissociation symptoms. All patients withdrew due to intolerability of IV ketamine. Three infusions were postponed, two of which were due to a vasovagal response to the insertion of the IV line and one was due to a supraventricular tachycardia on the day of infusion. These patients were referred to a cardiologist in order to ensure it was safe to proceed with infusion.