Dental Management of the Myasthenic Patient

From Volume 31, Issue 4, May 2004 | Pages 237-242

Authors

S. Lotia

BDS, MFDS

part-time Staff Grade in Oral and Maxillofacial Surgery (Manchester Dental Hospital) and General Dental Practitioner (Manchester)

Articles by S. Lotia

C. Randall

BPharm, MRPharm S

Medicines Information Pharmacist, North West Regional Medicines Information Centre

Articles by C. Randall

L.J. Dawson

BSc, BDS, PhD

Lecturer in Oral Surgery, Liverpool University Dental Hospital, Pembroke Place, Liverpool L3 5PS.

Articles by L.J. Dawson

L.P. Longman

PhD, BDS, BSc, FDS

Consultant/Honorary Lecturer in Restorative Dentistry, University of Liverpool

Articles by L.P. Longman

Abstract

Myasthenia gravis (MG) is an auto-immune disorder of neuromuscular transmission which results in weakness and fatigue of skeletal muscles. The defect in neuromuscular transmission is most commonly seen in the muscles of the eyes, face, neck and shoulders but, in some patients, the respiratory muscles are involved. Patients with this condition may present with problems that necessitate special consideration when managing their dental treatment. Patients who are only mildly affected by MG can be treated in general dental practice for routine care. There are no contra-indications to the use of local anaesthetic agents and the presence of a vasoconstrictor is desirable. More severely affected patients and those who are very anxious about dental treatment should be cared for within the hospital environment. In these patients, respiratory muscles may be affected and, as a result, a myasthenic crisis may arise which requires assisted ventilation and, in some cases, intubation. Those patients who are fearful of the dental environment are likely to be emotionally stressed during such times and this increases the risk of a myasthenic crisis; sedation techniques can be beneficial in this group of patients.

Article