• Cevriye Mülkoğlu and Hakan Genç.
• Department of Physical Therapy and Rehabilitation of University of Health Sciences, Ankara Health Application and Research Center, Ankara, Turkey. Electronic address: drckaraca@hotmail.com.
• Ann Vasc Surg. 2019 May 1; 57: 275.e13-275.e15.

BackgroundHypothenar hammer syndrome (HHS) is an uncommon vascular syndrome of upper extremity. HHS should be considered in patients who are presented with digital ischemia. Distal ulnar artery compression at the level of Guyon's canal with trauma results in thrombus or aneurysm. It may be observed after repetitive chronic trauma or acute blunt trauma to hypothenar eminence. Middle-aged male laborers, smokers, and dominant hands are affected frequently. Hand pain, discoloration or ulceration of digits, cold intolerance, hypothenar pulsatile mass, hypothenar weakness, and numbness are significant clinical findings.Case CharacteristicsIn this report, we presented a 37-year-old woman complaining with intermittent hand pain, paleness, and cyanosis at third, fourth, and fifth fingers of the right hand. She had no blunt trauma to her hand but intense amount of needle lace with her hands. Doppler ultrasonography revealed ulnar arterial thrombus at right Guyon's canal level.ConclusionsShe was diagnosed as HHS secondary to intense needlework. A calcium channel blocker and low-dose aspirin were prescribed to her, and avoidance of hand traumas was suggested. These interventions relieved digital ischemia symptoms on her hand.Copyright © 2019 Elsevier Inc. All rights reserved.

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