Publications

  1. Clardy SL, Lennon VA, Dalmau J, Pittock SJ, Jones HR Jr, Renaud DL, Harper CM Jr, Matsumoto JY, McKeon A. Childhood onset of stiff-man syndrome. JAMA Neurol. 2013 Dec; 70(12):1531-6.
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  2. Terzic A, Harper CM Jr, Gores GJ, Pfenning MA. Regenerative medicine blueprint. Stem Cells Dev. 2013 Dec; 22 Suppl 1:20-4.
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  3. Swensen SJ, Dilling JA, Mc Carty PM, Bolton JW, Harper CM Jr. The business case for health-care quality improvement. J Patient Saf. 2013 Mar; 9(1):44-52.
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  4. Swensen SJ, Dilling JA, Harper CM Jr, Noseworthy JH. The Mayo Clinic Value Creation System. Am J Med Qual. 2012 Jan-Feb; 27(1):58-65. Epub 2011 Sep 06.
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  5. Boon AJ, Bailey PW, Smith J, Sorenson EJ, Harper CM, Hurdle MF. Utility of ultrasound-guided surface electrode placement in lateral femoral cutaneous nerve conduction studies. Muscle Nerve. 2011 Oct; 44(4):525-30. Epub 2011 Aug 08.
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  6. Boon AJ, Oney-Marlow TM, Murthy NS, Harper CM, McNamara TR, Smith J. Accuracy of electromyography needle placement in cadavers: non-guided vs. ultrasound guided. Muscle Nerve. 2011 Jul; 44(1):45-9.
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  7. Jones LK Jr, Harper CM. Clinical and electrophysiologic features of oculopharyngeal muscular dystrophy: lack of evidence for an associated peripheral neuropathy. Clin Neurophysiol. 2010 Jun; 121(6):870-3. Epub 2010 Feb 23.
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  8. Goodman BP, Harper CM, Boon AJ. Prolonged compound muscle action potential duration in critical illness myopathy. Muscle Nerve. 2009 Dec; 40(6):1040-2.
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  9. Boon AJ, Harper CM. Electromyographic sensitivity of peroneus tertius relative to abductor hallucis in assessment of peripheral neuropathy. Muscle Nerve. 2009 Oct; 40(4):629-32.
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  10. Milone M, Shen XM, Selcen D, Ohno K, Brengman J, Iannaccone ST, Harper CM, Engel AG. Myasthenic syndrome due to defects in rapsyn: Clinical and molecular findings in 39 patients. Neurology. 2009 Jul 21; 73(3):228-35.
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  11. Harper CM. Congenital myasthenic syndromes. Continuum. 2009 Feb; 15(1):63-82.
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  12. Boon AJ, Alsharif KI, Harper CM, Smith J. Ultrasound-guided needle EMG of the diaphragm: technique description and case report. Muscle Nerve. 2008 Dec; 38(6):1623-6.
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  13. Rabinowitz RS, Eck JC, Harper CM Jr, Larson DR, Jimenez MA, Parisi JE, Friedman JA, Yaszemski MJ, Currier BL. Urgent surgical decompression compared to methylprednisolone for the treatment of acute spinal cord injury: a randomized prospective study in beagle dogs. Spine (Phila Pa 1976) 2008 Oct 1; 33(21):2260-8.
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  14. Lynch SL, Boon AJ, Smith J, Harper CM Jr, Tanaka EM. Complications of needle electromyography: hematoma risk and correlation with anticoagulation and antiplatelet therapy. Muscle Nerve. 2008 Oct; 38(4):1225-30.
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  15. Selcen D, Milone M, Shen XM, Harper CM, Stans AA, Wieben ED, Engel AG. Dok-7 myasthenia: phenotypic and molecular genetic studies in 16 patients. Ann Neurol. 2008 Jul; 64(1):71-87.
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  16. Harper CM. Electromyographic aspects of neuromuscular junction disorders. Handb Clin Neurol. 2008; 91:149-68.
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  17. Chan KH, Lachance DH, Harper CM, Lennon VA. Frequency of seronegativity in adult-acquired generalized myasthenia gravis. Muscle Nerve. 2007 Nov; 36(5):651-8.
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  18. Thieben MJ, Blacker DJ, Liu PY, Harper CM, Wijdicks EFM. Pulmonary function tests and blood gases in worsening myasthenia gravis. Muscle Nerve. 2005 Nov; 32(5):664-7.
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  19. Dyck PJ, O'Brien PC, Litchy WJ, Harper CM, Klein CJ, Dyck PJ. Monotonicity of nerve tests in diabetes: subclinical nerve dysfunction precedes diagnosis of polyneuropathy. Diabetes Care. 2005 Sep; 28(9):2192-200.
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  20. Kumar N, Elliott MA, Hoyer JD, Harper CM Jr, Ahlskog JE, Phyliky RL. "Myelodysplasia," myeloneuropathy, and copper deficiency. Mayo Clin Proc. 2005 Jul; 80(7):943-6.
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  21. Bharucha AE, Fletcher JG, Harper CM, Hough D, Daube JR, Stevens C, Seide B, Riederer SJ, Zinsmeister AR. Relationship between symptoms and disordered continence mechanisms in women with idiopathic faecal incontinence. Gut. 2005 Apr; 54(4):546-55.
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  22. Harper CM. Preoperative and intraoperative electrophysiologic assessment of brachial plexus injuries. Hand Clin. 2005 Feb; 21(1):39-46.
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  23. Yarbrough DE, Thompson GB, Kasperbauer JL, Harper CM, Grant CS. Intraoperative electromyographic monitoring of the recurrent laryngeal nerve in reoperative thyroid and parathyroid surgery. Surgery. 2004 Dec; 136(6):1107-15.
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  24. Rubin DI, Harper CM, Auger RG. Trigeminal nerve repetitive stimulation in myasthenia gravis. Muscle & Nerve. 2004 Apr; 29(4):591-6.
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  25. Harper CM. Intraoperative cranial nerve monitoring. Muscle & Nerve. 2004 Mar; 29(3):339-51.
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  26. Harper CM. Congenital myasthenic syndromes. Semin Neurol. 2004 Mar; 24(1):111-23.
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  27. Tsujino A, Maertens C, Ohno K, Shen XM, Fukuda T, Harper CM, Cannon SC, Engel AG. Myasthenic syndrome caused by mutation of the SCN4A sodium channel. Proc Natl Acad Sci U S A. 2003 Jun 10; 100(12):7377-82. Epub 2003 May 23.
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  28. Boon AJ, Harper CM. Needle EMG of abductor hallucis and peroneus tertius in normal subjects. Muscle & Nerve. 2003 Jun; 27(6):752-6.
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  29. Harper CM, Fukodome T, Engel AG. Treatment of slow-channel congenital myasthenic syndrome with fluoxetine. Neurology. 2003 May 27; 60(10):1710-3.
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  30. Dyck PJ, Litchy WJ, Daube JR, Harper CM, Dyck PJB, Davies J, O'Brien PC. Individual attributes versus composite scores of nerve conduction abnormality: Sensitivity, reproducibility, and concordance with impairment. Muscle & Nerve. 2003 Feb; 27(2):202-10.
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  31. Fletcher JG, Busse RF, Riederer SJ, Hough D, Gluecker T, Harper CM, Bharucha AE. Magnetic resonance imaging of anatomic and dynamic defects of the pelvic floor in defecatory disorders. Am J Gastroenterol. 2003 Feb; 98(2):399-411.
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  32. Friedenberg SM, Zimprich T, Harper CM. The natural history of long thoracic and spinal accessory neuropathies. Muscle Nerve. 2002 Apr; 25(4):535-9.
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  33. Pittock SJ, Payne TA, Harper CM. Reversible myelopathy in a 34-year-old man with vitamin B12 deficiency. Mayo Clin Proc. 2002 Mar; 77(3):291-4.
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  34. Ohno K, Engel AG, Shen XM, Selcen D, Brengman J, Harper CM, Tsujino A, Milone M. Rapsyn mutations in humans cause endplate acetylcholine-receptor deficiency and myasthenic syndrome. Am J Hum Genet. 2002 Apr; 70(4):875-85. Epub 2002 Jan 14.
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  35. Pring ME, Trousdale RT, Cabanela ME, Harper CM. Intraoperative spontaneous EMG monitoring during periacetabular osteotomy. Clin Orthop. 2002; 400:158-64.
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  36. Ohno K, Tsujino A, Brengman JM, Harper CM, Bajzer Z, Udd B, Beyring R, Robb S, Kirkham FJ, Engel AG. Choline acetyltransferase mutations cause myasthenic syndrome associated with episodic apnea in humans. Proc Natl Acad Sci U S A. 2001 Feb 13; 98(4):2017-22.
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  37. Noseworthy JH, O'Brien PC, Weinshenker BG, Weis JA, Petterson TM, Erickson BJ, Windebank AJ, Whisnant JP, Stolp-Smith KA, Harper CM Jr, Low PA, Romme LJ, Johnson M, An KN, Rodriguez M. IV immunoglobulin does not reverse established weakness in MS. Neurology. 2000 Oct 24; 55(8):1135-43.
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  38. Warner MA, Warner DO, Harper CM, Schroeder DR, Maxson PM. Lower extremity neuropathies associated with lithotomy positions. Anesthesiology. 2000 Oct; 93(4):938-42.
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  39. Taylor BV, Wright RA, Harper CM, Dyck PJ. Natural history of 46 patients with multifocal motor neuropathy with conduction block. Muscle & Nerve. 2000 Jun; 23(6):900-8.
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  40. Spinner RJ, Atkinson JL, Harper CM Jr, Wenger DE. Recurrent intraneural ganglion cyst of the tibial nerve. Case report. J Neurosurg. 2000 Feb; 92(2):334-7.
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  41. Warner MA, Warner DO, Harper CM, Schroeder DR, Maxson PM. Ulnar neuropathy in medical patients. Anesthesiology. 2000 Feb; 92(2):613-5.
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  42. Sandroni P, Davis MDP, Harper CM Jr, Rogers RS III, O'Fallon WM, Rooke TW, Low PA. Neurophysiologic and vascular studies in erythromelalgia: A retrospective analysis. J Clin Neuromusc Dis. 1999 Dec; 1(2):57-63.
  43. Vernino S, Auger RG, Emslie-Smith AM, Harper CM, Lennon VA. Myasthenia, thymoma, presynaptic antibodies, and a continuum of neuromuscular hyperexcitability. Neurology. 1999 Oct 12; 53(6):1233-9.
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  44. Ahlskog JE, Litchy WJ, Peterson RC, Waring SC, Esteban-Santillan C, Chen KM, Harper CM, Craig UK, Kurland LT. Guamanian neurodegenerative disease: electrophysiologic findings. J Neurol Sci. 1999 Jun 15; 166(1):28-35.
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  45. Warner MA, Warner DO, Matsumoto JY, Harper CM, Schroeder DR, Maxson PM. Ulnar neuropathy in surgical patients. Anesthesiology. 1999 Jan; 90(1):54-9.
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  46. Wu CL, Denq JC, Harper CM, O'Brien PC, Low PA. Clinical and electrophysiologic attributes as predictors of results of autonomic function tests. Clin Auton Res. 1998 Dec; 8(6):347-51.
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  47. Harper CM, Engel AG. Safety and efficacy of quinidine sulfate in slow-channel congenital myasthenic syndrome. Ann N Y Acad Sci. 1998 May 13; 841:203-6.
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  48. Harper CM, Daube JR. Facial nerve electromyography and other cranial nerve monitoring. J Clin Neurophysiol. 1998 May; 15(3):206-16.
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  49. Harper CM, Engel AG. Quinidine sulfate therapy for the slow-channel congenital myasthenic syndrome. Ann Neurol. 1998 Apr; 43(4):480-4.
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  50. Bohnen NI, Parnell KJ, Harper CM. Reversible MRI findings in a patient with Hashimoto's encephalopathy. Neurology. 1997 Jul; 49(1):246-7.
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  51. Ohno K, Quiram PA, Milone M, Wang HL, Harper MC, Pruitt JN 2nd, Brengman JM, Pao L, Fischbeck KH, Crawford TO, Sine SM, Engel AG. Congenital myasthenic syndromes due to heteroallelic nonsense/missense mutations in the acetylcholine receptor epsilon subunit gene: identification and functional characterization of six new mutations. Hum Mol Genet. 1997 May; 6(5):753-66.
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  52. Ohno K, Yamamoto M, Engel AG, Harper CM, Roberts LR, Tan GH, Fatourechi V. MELAS- and Kearns-Sayre-type co-mutation [corrected] with myopathy and autoimmune polyendocrinopathy. Ann Neurol. 1996 Jun; 39(6):761-6.
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  53. Harner SG, Harper CM, Beatty CW, Litchy WJ, Ebersold MJ. Far-field auditory brainstem response in neurotologic surgery. Am J Otol. 1996 Jan; 17(1):150-3.
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  54. Russell JW, Windebank AJ, Harper CM Jr. Treatment of stable chronic demyelinating polyneuropathy with 3,4-diaminopyridine. Mayo Clin Proc. 1995 Jun; 70(6):532-9.
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  55. Engel AG, Nagel A, Walls TJ, Harper CM, Waisburg HA. Congenital myasthenic syndromes: I. Deficiency and short open-time of the acetylcholine receptor. Muscle Nerve. 1993 Dec; 16(12):1284-92.
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  56. Morgenthaler TI, Brown LR, Colby TV, Harper CM Jr, Coles DT. Thymoma. Mayo Clin Proc. 1993 Nov; 68(11):1110-23.
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  57. Engel AG, Uchitel OD, Walls TJ, Nagel A, Harper CM, Bodensteiner J. Newly recognized congenital myasthenic syndrome associated with high conductance and fast closure of the acetylcholine receptor channel. Ann Neurol. 1993 Jul; 34(1):38-47.
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  58. Nagel A, Engel AG, Walls TJ, Harper CM, Waisburg HA. Congenital end-plate acetylcholine receptor deficiency and short channel open time. Ann N Y Acad Sci. 1993 Jun 21; (681):509-14.
  59. Hutchinson DO, Engel AG, Walls TJ, Nakano S, Camp S, Taylor P, Harper CM, Brengman JM. The spectrum of congenital end-plate acetylcholinesterase deficiency. Ann N Y Acad Sci. 1993 Jun 21; (681):469-86.
  60. Walls TJ, Engel AG, Nagel AS, Harper CM, Trastek VF. Congenital myasthenic syndrome associated with paucity of synaptic vesicles and reduced quantal release. Ann N Y Acad Sci. 1993 Jun 21; (681):461-8.
  61. Hutchinson DO, Walls TJ, Nakano S, Camp S, Taylor P, Harper CM, Groover RV, Peterson HA, Jamieson DG, Engel AG. Congenital endplate acetylcholinesterase deficiency. Brain. 1993 Jun; 116(Pt 3):633-53.
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  62. Nagel A, Engel AG, Walls TJ, Harper CM. Congenital myasthenic syndromes: 1. Deficiency and short open-time of the acetylcholine receptor. Ann NY Acad Sci. 1993; 681:509-14.
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  63. Harper CM, Harner SG, Slavit DH, Litchy WJ, Daube JR, Beatty CW, Ebersold MJ. Effect of BAEP monitoring on hearing preservation during acoustic neuroma resection. Neurology. 1992 Aug; 42(8):1551-3.
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  64. Harper CM, Nelson KR. Intraoperative electrophysiological monitoring in children. J Clin Neurophysiol. 1992 Jul; 9(3):342-56.
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  65. Ebersold MJ, Harner SG, Beatty CW, Harper CM Jr, Quast LM. Current results of the retrosigmoid approach to acoustic neurinoma. J Neurosurg. 1992 Jun; 76(6):901-9.
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  66. Elmore JR, Gloviczki P, Harper CM Jr, Murray MJ, Wu QH, Bower TC, Pairolero PC, Naessens JM, Daube JR. Spinal cord injury in experimental thoracic aortic occlusion: investigation of combined methods of protection. J Vasc Surg. 1992 May; 15(5):789-98; discussion 798-9.
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  67. Slavit DH, Harner SG, Harper CM Jr, Beatty CW. Auditory monitoring during acoustic neuroma removal. Archives of Otolaryngology -- Head & Neck Surgery. 1991 Oct; 117(10):1153-7.
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  68. Elmore JR, Gloviczki P, Harper CM, Pairolero PC, Murray MJ, Bourchier RG, Bower TC, Daube JR. Failure of motor evoked potentials to predict neurologic outcome in experimental thoracic aortic occlusion. J Vasc Surg. 1991 Aug; 14(2):131-9.
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  69. Harper CM Jr, Low PA, Fealey RD, Chelimsky TC, Proper CJ, Gillen DA. Utility of thermography in the diagnosis of lumbosacral radiculopathy. Neurology. 1991 Jul; 41(7):1010-4.
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  70. Hohlfeld R, Engel AG, Ii K, Harper MC. Polymyositis mediated by T lymphocytes that express the gamma/delta receptor. N Engl J Med. 1991 Mar 28; 324(13):877-81.
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  71. Harper CM Jr. AAEM case report: 21: hemifacial spasm: preoperative diagnosis and intraoperative management. Muscle Nerve. 1991 Mar; 14(3):213-8.
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  72. Lachance DH, O'Neill BP, Harper CM Jr, Banks PM, Cascino TL. Paraneoplastic brachial plexopathy in a patient with Hodgkin's disease. Mayo Clin Proc. 1991 Jan; 66(1):97-101.
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  73. Harper CM Jr, Thomas JE, Cascino TL, Litchy WJ. Distinction between neoplastic and radiation-induced brachial plexopathy, with emphasis on the role of EMG. Neurology. 1989 Apr; 39(4):502-6.
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  74. Litchy WJ, Daube JR, Harper CM Jr. Intraoperative monitoring of neural function using evoked potentials. Curr Opin Neurol Neurosurg. 1989; 2:788-791.
  75. Lagerlund TD, Harper CM Jr, Sharbrough FW, Westmoreland BF, Dale AJ. An electroencephalographic study of glossopharyngeal neuralgia with syncope. Arch Neurol. 1988 Apr; 45(4):472-5.
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  76. Harper CM Jr, Daube JR, Litchy WJ, Klassen RA. Lumbar radiculopathy after spinal fusions for scoliosis. Muscle Nerve. 1988 Apr; 11:386-391.
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  77. Harper CM Jr, O'Neill BP, O'Duffy JD, Forbes GS. Intracranial hypertension in Behcet's disease: demonstration of sinus occlusion with use of digital subtraction angiography. Mayo Clin Proc. 1985 Jun; 60:419-422.
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  78. Harper CM Jr, Sharp JG. Evaluation of the morphological and functional characteristics of murine thymic non-lymphoid cells grown in vitro. J Anat. 1981 Jun; 132(Pt 4):607-25.
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  79. Harper CM Jr, Bauer TW. Hematopoietic precursor cell differentiation on thymic non-lymphoid cell monolayers. Anat Rec. 1978; 190(2):414-5.
  80. Jordan RK, Crouse DA, Arnold LW, Harper CM Jr, Sharp JG. The thymic micro-environment. International Society for Exp Hematology. 1978.