Anterocollis Worsened by Levodopa Therapy: A Case Report

AUTHORS

Francesco Raudino 1 , * , Elisabetta Corengia 1

AUTHORS INFORMATION

1 Department of Neurology Valduce Hospital, Via Dante n.11, Como, Italy

ARTICLE INFORMATION

Archives of Neuroscience: 4 (3); e59649
Published Online: July 31, 2017
Article Type: Case Report
Received: December 10, 2016
Accepted: June 28, 2017
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Abstract

Introduction: Anterocollis was described in the Parkinson’s disease and was often indicated as responding well to levodopa therapy. This article, on the other side, investigates the case of a patient with anterocollis whose condition worsened because of the levodopa therapy.

Case Presentation: A man suffering from Parkinson’s disease since the age of 63 years began presenting a subacute appearance of anterocollis at the age of 73 years. Clonazepam, botulinum toxin, and physiotherapy relieved the pain without improving the anterocollis, while the suspension of both pramipexole and domperidone proved ineffective. The washout of the levodopa for 12 hours caused a worsening of the PD but an improvement of anterocollis. All attempts to increase the posology of the levodopa led to an improvement of the PD but worsening of the anterocollis.

Conclusions: Usually the anterocollis improves with levodopa, but in rare patients, levodopa therapy causes worsening of the anterocollis despite the improvement of rigidity.

Keywords

Anterocollis Levodopa Parkinson’s Disease Side Effect

Copyright © 2017, Archives of Neuroscience. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.
1. Introduction

Quinn drew attention to the anterocollis in extrapyramidal diseases and defined it as “disproportionate anterocollis”. At the beginning, he considered “disproportionate anterocollis” to be a peculiar sign of the multiple system atrophy after this had already been observed in association with some diseases and as a complication arising from specific drugs. In particular, “disproportionate anterocollis” was described in the Parkinson’s disease (PD), and was often indicated as responding well to levodopa therapy. This article, on the other side, investigates the case of a patient with anterocollis whose condition worsened because of the levodopa therapy.

2. Case Presentation

A 63-year-old man with an unremarkable familial and personal anamnesis complained of micrography and motor impairment in the right limbs; PD was subsequently diagnosed and the patient begun levodopa therapy, showing a good response for several years. At the age of 69, pramipexole was added to the therapy to face a worsening motor impairment. At the age of 70, levodopa was replaced with levodopa/carbidopa/entacapone because of levodopa’s wearing-off effects and because of dystonia in the right foot. At the age of 71 and over a period of two weeks, the patient developed a subacute appearance of anterocollis which was measured as grade 4 on the MDS-UPDRS scale. The therapy was: levodopa 900 mg a day; entacapone 800 mg a day; pramipexole 2.10 mg a day; and domperidone 30 mg a day. The PD was subsequently measured as grade 2.5 on the Hoehn-Yarh’s scale and grade 37 on the UPDRS part III scale; the patient was able to ameliorate the anterocollis applying a finger to her chin (geste antagoniste). The NMR of the cervical spine was unremarkable and the electromyography showed dystonia in the right scalene muscle as well as in both the scalene posterior muscles. On the contrary, serum creatinine kinase (CK) levels and thyroid functions were normal. One mg a day of clonazepam, botulinum toxin, and physiotherapy allowed pain relief without, however, improving the anterocollis. Suspending both pramipexole and domperidone equally proved ineffective. At the age of 73, the patient was reassessed in hospital: a 12-hour washout of levodopa caused a worsening of the PD by 40% on the UPDRS part III scale but an improvement of anterocollis from 4 to 3 on the MDS-UPDRS scale. To face a worsening PD, levodopa’s posology was increased several times; however, along with the improvements of the PD, the new posology also caused a worsening of the anterocollis. During the last control at the age of 79, the PD was under relative control by a levodopa dose of 800 mg a day and an entacapone dose of 800 mg a day. The anterocollis was controlled via botulinum toxin and physiotherapy.

3. Discussion

Anterocollis is quite frequent in the PD: Kashihara et al, in a series of 356 patients, found no patient at the Hoehn-Yahr’s stage 1; 1.4% of patients at stage 2; 4.7% of patients at stage 3; and 9.1% of patients at stage 4 (1). Similarly, Fujmoto found anterocollis in 5.3% of 131 patients with PD (2). The pathogenesis of anterocollis is debated: while it is considered to be a myopathy by some Authors, it is described as a dystonia by others (3). In our patient, the symptoms may relate to dystonia because of the absence of myopathic signs at the electromyography and because of the presence of the “geste antagoniste”. Anterocollis may be provoked by some drugs but it has mostly been ascribed to dopaminergic drugs (3). The domperidone may also cause dystonia but, to our knowledge, there is no reference in the literature about cases of anterocollis related to its use. In our patient, the withdrawal of both drugs proved ineffective on the anterocollis. Usually anterocollis improves with levodopa, but in one of Yoshiyama’s (4) patients and in four of Kashihara’s (5), levodopa therapy was ineffective. As in our case, in another of Yoshiyma’s (4) patients, levodopa therapy caused the worsening of the anterocollis despite the rigidity improvement. As other parkinsonian symptoms that can be positively or negatively affected by levodopa, this suggests the involvment of different neurotrasmitters.

References
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