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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Andersen-Tawil syndrome physical examination

Introduction

Overview

Overview

Patients with Andersen-Tawil syndrome usually appear shorter than normal. Physical examination of patients with Andersen-Tawil syndrome is usually remarkable for hypoplastic mandible, micrognathia, broad nose, low set ears and clinodactyly.

Physical Examination

Physical Examination

Appearance of the Patient

    HEENT

    Findings may include:

    Facial dysmorphia
    Facial dysmorphia. The mouth is small(purple arrow), the ears have low implantation(yellow arrow) and the nose ridge is broad(blue arrow). Case courtesy by Stéphane Burtey et al[1]
    Dental abnormalities
    Dental abnormalities in patient with Andersen-Tawil syndrome. Case courtesy by Rui Fan et al[2]

    Heart

    Neuromuscular

    Extremities

    clinodactyly
    Characteristic deformity of hand. A: patient’s right fifth finger showing clinodactyly (arrow). B: patient mother’s left fifth finger also showing clinodactyly (arrow). Case courtesy by Jung Yoon Pyo et al[11]
    References

    References

    1. ↑ “Hypokalaemia and dysmorphia, is there a link?”.
    2. ↑ “Concomitant presentation of Anderson-Tawil syndrome and myasthenia gravis in an adult patient: A case report”.
    3. ↑ Levitt, Lawrence P.; Rose, Leslie I.; Dawson, David M. (1972). “Hypokalemic Periodic Paralysis with Arrhythmia”. New England Journal of Medicine. 286 (5): 253–254. doi:10.1056/NEJM197202032860507. ISSN 0028-4793.
    4. ↑ Statland JM, Fontaine B, Hanna MG, Johnson NE, Kissel JT, Sansone VA; et al. (2018). “Review of the Diagnosis and Treatment of Periodic Paralysis”. Muscle Nerve. 57 (4): 522–530. doi:10.1002/mus.26009. PMC 5867231. PMID 29125635.
    5. ↑ Cavel-Greant D, Lehmann-Horn F, Jurkat-Rott K (2012). “The impact of permanent muscle weakness on quality of life in periodic paralysis: a survey of 66 patients”. Acta Myol. 31 (2): 126–33. PMC 3476862. PMID 23097604.
    6. ↑ Sansone VA, Ricci C, Montanari M, Apolone G, Rose M, Meola G; et al. (2012). “Measuring quality of life impairment in skeletal muscle channelopathies”. Eur J Neurol. 19 (11): 1470–6. doi:10.1111/j.1468-1331.2012.03751.x. PMC 3492909. PMID 22607270.
    7. ↑ Modoni A, Bianchi ML, Vitulano N, Pagliarani S, Perna F, Sanna T; et al. (2011). “Lack of any cardiac involvement in a patient with Andersen-Tawil syndrome associated with the c.574A→G mutation in KCNJ2”. Cardiology. 120 (4): 200–3. doi:10.1159/000335529. PMID 22286118.
    8. ↑ Andersen ED, Krasilnikoff PA, Overvad H (1971). “Intermittent muscular weakness, extrasystoles, and multiple developmental anomalies. A new syndrome?”. Acta Paediatr Scand. 60 (5): 559–64. doi:10.1111/j.1651-2227.1971.tb06990.x. PMID 4106724.
    9. ↑ Nguyen HL, Pieper GH, Wilders R (2013). “Andersen-Tawil syndrome: clinical and molecular aspects”. Int J Cardiol. 170 (1): 1–16. doi:10.1016/j.ijcard.2013.10.010. PMID 24383070.
    10. ↑ Tawil R, Ptacek LJ, Pavlakis SG, DeVivo DC, Penn AS, Ozdemir C; et al. (1994). “Andersen’s syndrome: potassium-sensitive periodic paralysis, ventricular ectopy, and dysmorphic features”. Ann Neurol. 35 (3): 326–30. doi:10.1002/ana.410350313. PMID 8080508.
    11. ↑ “Ventricular Tachyarrhythmias in a Patient with Andersen-Tawil Syndrome”.


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    Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vamsikrishna Gunnam M.B.B.S [2]