Figure 64-1 Cardiovascular autonomic testing in the patient with AAG (left panels) and a normal control (right panels). Heart rate is depicted in green, blood pressure in brown, and respiratory excursions in dark blue. The top panels illustrate a blunted heart rate response to deep breathing. The middle panels illustrate a decreased late phase II, absent phase IV overshoot, and a mildly blunted heart rate response to the Valsalva maneuver (strain phase in light blue). The bottom panels show a mild orthostatic blood pressure drop and marked orthostatic tachycardia during 70-degree head-up tilt (tilt phase in light blue).

Figure 64-2 Quantitative sudomotor axon reflex test at four sites (forearm-red, proximal leg-blue, distal leg-green, and foot-yellow) in the patient with AAG (left panel) and a normal control (right panel). The time of iontophoresis of acetylcholine (2 mA at each site) is highlighted in light blue. Note the absence of a response in the patient.

Figure 64-3 Thermoregulatory sweat test (digital photographs). Note the marked anhidrosis except for characteristic small islands of preserved sweating.

Related posts:

An Unusual Case of Pia-Arachnoiditis due to Metastatic Breast Carcinoma Stepwise Facial and Upper Limb Weakness and Small Fiber Sensory Loss—Tangier Disease Late-Onset Transthyretin Val30Met Familial Amyloid Polyneuropathy Unrelated to Endemic Foci Inflammatory Multifocal Encephalomyelopolyradiculoneuropathy Mimicking a Granulomatous or Lymphomatous Process Chronic Inflammatory Demyelinating Polyradiculoneuropathy–Like Neuropathy with Gastrointestinal Dysmotility, Ophthalmoplegia, and Leukoencephalopathy—Mitochondrial Neurogastrointestinal Encephalopathy “Small-Fiber” Neuropathy, Angiokeratoma, and Heat Intolerance—Fabry’s Disease

Stay updated, free articles. Join our Telegram channel

Join