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20 Possible Causes for Aspiration Pneumonia, Compound Muscle Action Potential with Low Amplitude, Diplopia

  • Myasthenia Gravis

    A46-year male presented with unilateral ptosis and diplopia.[] Complications Aspiration pneumonia due to throat muscle weakness. Acute respiratory failure during an exacerbation.[] Distinguishing features of the RNS test in LEMS and MG are confirmed in this direct comparison study: the low compound muscle action potential amplitude, decrement at LRS,[]

  • Guillain-Barré Syndrome

    CASE REPORT: A 76-year-old woman was initially presented with diplopia, ophthalmoplegia, and ataxia, but she later developed weakness of limbs, respiratory failure, deterioration[] Thromboembolism, pneumonia, skin breakdown. Cardiac arrhythmia. Ileus. Aspiration pneumonia. Urinary retention. Psychiatric problems - eg, depression, anxiety.[] muscle action potentials reduced amplitude with relatively preserved conduction velocity implicates axonal neuropathy delayed/absent F waves implicates nerve root involvement[]

  • Lambert Eaton Myasthenic Syndrome

    She recently developed unilateral ptosis and diplopia which dramatically improved with pyridostigmine suggesting concomitant MG.[] Approximately 2 months after the operation, he had aspiration pneumonia with respiratory failure.[] Distinguishing features of the RNS test in LEMS and MG are confirmed in this direct comparison study: the low compound muscle action potential amplitude, decrement at LRS,[]

  • Miller-Fisher Syndrome

    The immediate cause of death was considered to be aspiration pneumonia.[] CBs resolved, distal compound muscle action potential (CMAP) amplitudes increased and SNAPs normalized on subsequent testing.[] CASE REPORT.: An 81-year-old white man presented with an acute onset of diplopia after a mild gastrointestinal illness.[]

  • Dermatomyositis

    Pulmonary manifestations range from aspiration pneumonia to interstitial lung disease (ILD), sometimes with complications such as pulmonary arterial hypertension (see these[] Low compound muscle action potentials (CMAP) amplitudes may not necessarily indicate a neuropathic process, as it may reflect muscle atrophy and fibrosis.[] Ptosis of the eyelids, diplopia, and strabismus due to extraocular muscle involvement can be observed in some DM patients [4].[]

  • Food-Borne Botulism

    Of the 41 botulinal toxin-positive persons, 38 (93%) had at least three of the commonly recognized pentad of signs or symptoms--nausea and vomiting, dysphagia, diplopia, dilated[] A higher chance of acquiring aspiration pneumonia, respiratory distress, long-lasting weakness, and nervous system problems for up to a year following the illness is common[] Electrophysiologic tests of such patients show reduced compound muscle action potentials (CMAPs), low amplitudes and short durations of motor unit potentials (MUPs), and mild[]

  • Neuromuscular Junction Disorder

    Lambert- Eaton -- eyes are usually spared myasthenia gravis - symptoms 1. ptosis 2. diplopia 3. weakness worsen with muscle use Lambert- Eaton myasthenic syndrome - symptoms[] Aspiration pneumonia is clearly an undesirable outcome in someone with already compromised respiratory function.[] EMNG showed signs of myopathy and low compound muscle action potential (CMAP) amplitude (0,15 mV) on lower extremities. Muscle and nerve biopsy were normal.[]

  • Inclusion Body Myositis

    Weakness affects most severely muscles that are innervated by brain stem nuclei, such as extraocular and facial muscles, and causes drooping of the eyelids, diplopia, and[] The incidence of dysphagia, rate of aspirations, rate of aspiration pneumonias and treatment results of dysphagia were analyzed.[] However, the low compound muscle action potential amplitudes could be explained by the loss of excitable muscle tissue that occurs in myopathies.[]

  • Transient Neonatal Myasthenia Gravis

    Motor neuron disease – Ptosis and diplopia are not symptoms of ALS, MG is not progressive, does not show upper or lower motor neuron signs Brainstem tumors – MRI is useful[] Additional complications might include food aspiration, choking, or pneumonia.[] A decremental pattern ( 10% difference in compound muscle action potential amplitude between the first and fourth or fifth stimulus) is the usual finding.[]

  • Neuropathy

    Disease of CN III, IV, and VI manifests as acute or subacute periorbital pain or headache followed by diplopia.[] Compounding the problem of aspiration pneumonias and chronic lung disease is the presence of relative insensitivity to hypoxemia [ 23 - 26 ], which limits ability to cope[] Patients have relatively normal nerve conduction velocities but low amplitude sensory nerve action potentials and compound muscle action potentials.[]

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