Management of Neurological Disease


How an experienced neurologist uses the history of the patient’s illness, the neurological examination, and investigations to diagnose neurological disease is discussed in Chapter 1, Chapter 33 . This chapter presents some general principles guiding the management of neurological disease. Chapter 52, Chapter 53, Chapter 54, Chapter 55, Chapter 56 cover individual areas of neurological management such as pain management, neuropharmacology, intensive care, neurosurgery, neurological rehabilitation, and managing the transition from childhood to adulthood. Chapter 114 covers palliative and end-of-life care. Details about the management of specific neurological diseases are presented in Chapter 100, Chapter 101, Chapter 102, Chapter 103, Chapter 104, Chapter 105, Chapter 106, Chapter 107, Chapter 108, Chapter 109, Chapter 110, Chapter 111, Chapter 112, Chapter 113, Chapter 57, Chapter 58, Chapter 59, Chapter 60, Chapter 61, Chapter 62, Chapter 63, Chapter 64, Chapter 65, Chapter 66, Chapter 67, Chapter 68, Chapter 69, Chapter 70, Chapter 71, Chapter 72, Chapter 73, Chapter 74, Chapter 75, Chapter 76, Chapter 77, Chapter 78, Chapter 79, Chapter 80, Chapter 81, Chapter 82, Chapter 83 . Many aspects of management are common to all neurological disorders; these management considerations are the subject of this chapter.

Principles of Neurological Management

Once a neurological diagnosis has been established, it is necessary to develop a management plan. In addition to disease-specific treatments, steps must be taken to provide support for the patient, family, and caregivers. Communicating bad news should be done with compassion, with a goal to offer as much hope as realistically possible (discussed further in Chapter 114). If a genetic diagnosis is made, genetic counseling should be offered to support the patient and also to address the potential for disease occurrence in other family members. A detailed discussion of genetic diagnosis and management is provided in Chapter 48 .

At present, many neurological diseases are “incurable.” This does not mean, however, that such diseases are not treatable and that nothing can be done to help the patient. Help that can be provided short of curing the disease ranges from treating the symptoms, to providing support for the patient and family, to end-of-life care ( Box 51.1 ).

BOX 51.1
Types of Help That a Physician Can Provide to Patients with Any Disease

  • Curative treatment

  • Modification of disease progression/arrest of the disease

  • Symptomatic treatment:

    • Relief of symptoms

    • Circumventing the effects of the disease

  • Treatment of secondary effects of the disease:

    • Psychological

    • Social

    • Family

  • Definition of the prognosis

  • Genetic counseling

  • End-of-life care

Unfortunately, a physician who is fixated on the need to cure disease may simply strive to make the diagnosis of an as-yet incurable disease and then give no thought to patient management. Such a physician will tell the patient that he or she has an incurable disease, so coming back for further appointments is pointless. The aphorism “To cure sometimes, to relieve often, to comfort always” originated in the 1800s with Dr. Edward Trudeau, founder of a tuberculosis sanatorium. Any other attitude is not only an abrogation of the physician’s responsibility to care for the patient but also leaves the patient without the many modalities of assistance that can be provided even to those with incurable diseases. The neurologist who accepts the responsibility for treating the patient will review with the patient and family all the issues listed in Box 51.1 . In fact, it is usually necessary to spend more time with the patient with an incurable disease than with one for whom effective treatment is available. In addition to providing all the practical help available, the compassionate neurologist should share the grief and provide consolation for the patient and family; both are essential aspects of patient management.

Evidence-Based Medicine in Neurology

No treatment should be given to a patient without a good rationale. Although there is growing emphasis on evidence-based medicine, it should be acknowledged that this approach has some limitations.

Subjects selected for double-blind placebo-controlled studies must meet criteria strictly defined by inclusion/exclusion, and they may not represent the population for whom the treatment will eventually be prescribed. Such patients, for example, may not necessarily have exactly the same demographic or clinical characteristics as those of the well-defined study population, and they may be taking other medications that could affect the response. For these and other reasons, the findings from controlled trials may often not be generalizable. Furthermore, most double-blind placebo-controlled drug trials are relatively short-term studies, and it is not until a long-term open-label trial has taken place that efficacy and adverse effects are better understood. Moreover, the cumulative experience of a seasoned physician—whose clinical judgment relies not only on the published evidence-based literature but also on personal and often empirical experience—can be of great importance in the management of a specific patient. It would be wrong if this resource were to be disregarded in areas where the relevant literature is not definitive or available. Absence of evidence (usually because the appropriate studies have not yet been done or published) does not mean that support for a specific intervention or application is lacking.

Goals of Treatment

In defining the goals of treatment, it is important to separate neurological impairment from disability. Neurological impairment (the presence of abnormal neurological signs) allows a diagnosis to be made. Impairment may cause disability. For instance, a stroke may cause a hemiplegia, which is the impairment. The hemiplegia may cause difficulty in walking, which is the disability. The patient may be concerned about the abnormal neurological signs but to a greater degree wants correction of the disability. It may not be possible to correct the underlying stroke lesion or reverse the hemiparesis or other neurological deficits, but symptomatic treatment such as providing physical therapy, a walker, and a wheelchair can mitigate these disabilities. The functional state of a stroke patient who has benefitted from neurological rehabilitation may be gratifying as compared with the state of untreated patients.

Amyotrophic lateral sclerosis (ALS) is perhaps the disease that epitomizes the role of symptomatic care. Patients with ALS often report being told by their doctor that they have ALS and are likely to die within 3 years; therefore, because nothing can be done for them, they should go home, put their affairs in order, and prepare to die. A doctor who dispenses such advice is not only uncaring but also leaves the patient without hope and without the symptomatic treatment that could help the patient to circumvent the disabilities attending the disease. The psychological support of a caring neurologist who is familiar with the disease can be of great help to the patient and family ( ). An increasing number of lay organizations and support groups are available to provide information and services. Patients will often have found these by searching the internet, but the physician should keep available the addresses and contact information of key organizations to give those who need them.

Symptomatic treatment depends on the nature of the disease. It can consist of arresting an attack of a disease such as multiple sclerosis (MS); circumventing the effects of the disease, as with antispasticity medications; or end-of-life care for a patient approaching death. This last is sometimes called palliative care , but in fact every treatment short of cure, even in the early stages of a disease, is palliative. There is no “cookbook” approach to the management of any neurological disorder; therapy must be individualized, and the selection of the therapeutic strategy must be guided by the specific impairment and tailored to the needs of the individual patient.

Arresting an Attack

Many neurological diseases cause episodic attacks. These include strokes, migraine, MS, epilepsy, paroxysmal dyskinesias, and periodic paralyses; in some of these diseases, treatment may prevent or halt the attacks. Although it does not cure the underlying disease, aborting the attacks is of great help to the patient. Triptan-class drugs may arrest a migraine, and valproate, a beta-blocker, or a calcium channel blocker will reduce the frequency of the attacks (see Chapter 102 ). Status epilepticus can usually be arrested by intravenous antiepileptic drugs, and the frequency of epileptic attacks can be reduced by the use of chronic oral anticonvulsant drugs (see Chapter 100 ). Intravenous and intra-arterial thrombolytics may terminate and potentially reverse an otherwise disastrous “brain attack” (cerebral ischemia; see Chapter 64 ).

Slowing Disease Progression

Examples of treatments that slow the progress of neurological disease are numerous. A malignant cerebral glioma is almost universally fatal, but high-dose corticosteroids, neurosurgical debulking, radiotherapy, and chemotherapy may slow tumor growth and prolong survival (see Chapter 73, Chapter 74, Chapter 75 ). The beta-interferons, glatiramer, natalizumab, or mitoxantrone or other immunomodulatory drugs may reduce relapses and slow the progression of MS (see Chapter 79 ). Liver transplantation in familial amyloid polyneuropathy may slow or arrest disease progression (see Chapter 106 ). Riluzole may slow the progression of ALS (see Chapter 97 ). Despite many efforts to slow the progression of Parkinson disease (PD), no neuroprotective therapy has proved to be effective, although certain monoamine oxidase-B inhibitors and dopamine agonists delay the onset of levodopa-related motor complications.

Relieving Symptoms

Symptomatic treatment is available for many neurological diseases. Relief of pain, although not curative, is the most important duty of the physician and can be accomplished in many ways (see Chapter 52 ). Baclofen and tizanidine can reduce spasticity, particularly in spinal cord disease, without affecting the disorder itself. Injections of botulinum toxin provide marked relief in patients with dystonia, spasticity, and other disorders manifested by abnormal muscle contractions. High-dose corticosteroid therapy reduces the edema surrounding a brain tumor, temporarily relieving headache and neurological deficits without necessarily affecting tumor growth. In PD, dopaminergic drugs partly or completely relieve symptoms for a time without affecting the progressive degeneration of substantia nigra neurons (see Chapter 95 ). The physician–patient relationship and the placebo response are both important tools used by the experienced neurologist to help relieve a patient’s symptoms ( ).

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