Electroconvulsive and Neuromodulation Therapies

Author: Conrad M. Swartz  

Publisher: Cambridge University Press‎

Publication year: 2009

E-ISBN: 9780511501494

Subject: R454.1 electrotherapy, magnetic therapy

Keyword: 神经病学与精神病学

Language: ENG

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Electroconvulsive and Neuromodulation Therapies

Description

Electroconvulsive therapy (ECT) is a psychiatric treatment involving the induction of a seizure through the transmission of electricity in the brain. Because of exploitation movies and greatly heightened drug company promotional activities ECT was used less frequently in the 1980s and 1990s. Eventually these movies were understood as unrealistic. Now these drugs are increasingly recognized as dangers to body health. Because of recent refinements and a far better scientific understanding of the clinical procedures and mechanisms underpinning ECT, this treatment modality has seen a resurgence in use and widespread appreciation of its safety. This book is the new definitive reference on electroconvulsive and neuromodulation therapies. It comprehensively covers the scientific basis and clinical practice of ECT as well as comparisons between ECT and medication therapies including the new generation of antipsychotic drugs. It also provides readers with administrative perspectives and specific details for the management of this modality in clinical practice. The new forms of nonconvulsive electrical and magnetic brain stimulation therapy are also covered in detail, in a separate section. The chapter authors are leading scholars and clinicians.

Chapter

Antagonism revisited

Conclusions

Acknowledgment

References

3 Neurochemical effects of electrically induced seizures: Relevance to the antidepressant mechanism of electroconvulsive therapy

Introduction

The effect of ECT on neurotransmitters and receptors in the brain

Neurotransmitters, receptors, depression, and ECT

The serotonergic pathway

Serotonin, depression, and the effects of ECT

Effects of ECS on serotonin receptors

The noradrenergic (norepinephrine) pathway

Norepinephrine, depression, and the effects of ECT

Effects of ECT on NE receptors

The dopaminergic pathway

The GABA pathway

Glutamatergic systems

The effect of ECT on neuropeptides

Background

NPY

NCS-1

Neuroserpin

Neurotensin

Tachykinins

The effect of ECT on gene transcription and neurotrophic factors

Overall effects

The BDNF/CREB pathway

Arachidonic acid cascade genes

Angiogenesis-, metabolism-, and homeostasis-regulating genes

Other genes

FGF-2

Nerve growth factor

Activity regulated cytoskeleton gene

ERK5-MEF2C

Thyrotropin-releasing hormone

Tissue inhibitors of metalloproteinases-1

ELL2

Kf-1

N-Myc downstream-regulated protein 2 gene

Frizzled-3 gene

Vesicle-associated membrane protein 2

The effect of ECS on synaptic plasticity and neurogenesis

Conclusions

References

4 Hypothesized mechanisms and sites of action of electroconvulsive therapy

Introduction

Current hypotheses

Neurochemical theories

Neurotransmitter theories

Intracellular signaling, gene transcription, and neurotrophic action

The diencephalic theory or neuroendocrine view

Anticonvulsant theory

Anatomical theory or prefrontal model

Seizure generalization theory

Developing a theory of ECT action – synthesis

Different organizational levels are involved in the pathophysiology of mental disorders

What happens during electrical stimulation?

Eliciting a seizure by overcoming surrounding inhibition

Functional consequences in response to ECT

Restoring balanced neuronal network function after repeated seizures

Overall view

5 Brain imaging and electroconvulsive therapy

Introduction

Definition of the ictal and interictal periods

What does neuroimaging measure?

Ictal neuroimaging in ECT

Interictal neuroimaging in ECT

Conclusions and future directions

References

6 Evidence for electroconvulsive therapy efficacy in mood disorders

Introduction

How effective is ECT for depression?

Is ECT more effective than placebo procedure?

Is ECT more effective than antidepressant medications?

Do various forms of ECT differ in therapeutic efficacy?

Do subtypes of depression respond differently to ECT?

ECT in mania

Concluding remarks

References

7 Clinical evidence for the efficacy of electroconvulsive therapy in the treatment of catatonia and psychoses

Introduction

Methodological limitations

ECT in schizophreniform disorder

ECT in the acute phase of schizophrenia

ECT in the acute phase of catatonic schizophrenia

ECT in malignant catatonia

ECT in schizoaffective disorders

ECT in the chronic phase of schizophrenia

Effect of catatonic features on response to ECT in chronic schizophrenia

Continuation ECT and MECT

ECT in catatonia associated with depression

ECT in catatonia associated with mania

ECT in catatonia associated with medical conditions (“organic” catatonia)

ECT in childhood and adolescent psychoses associated with catatonia

References

8 Hormonal effects of electroconvulsive therapy

Introduction

Consequences of ECT-induced hormone release

Comparing hormone changes

Prolactin release, an archetype

Posterior pituitary hormone release

Cortisol release

Resting hypercortisolism

Future clinical applications

References

Part II Historical, societal, and geographic perspectives

9 History of electroconvulsive therapy

Introduction

Origin of concept

Insulin coma and early convulsive therapies

ECT in the United States

The debate over technique

Stigmatization and the decline of ECT

The road back begins

The placement debate resurfaces

Electrode placement: Recent innovations

The revival of ECT

Acknowledgment

References

10 Electroconvulsive therapy in biographical books and movies

Introduction

The accounts of early treatment

Later accounts

The movies

Discussion

References

11 Professional barriers to providing electroconvulsive therapy

Introduction

Barriers to care

Professional barriers to providing electroconvulsive therapy 199

Training issues

Nonpsychiatric physicians

Psychiatry residency

Interference from practice patterns and settings

Sociopolitical barriers

Regulation as a professional barrier

Malpractice and other liability concerns

“Mindset”

References

12 Legislation that regulates, limits, or bans electroconvulsive therapy

Introduction

Legislation that regulates, limits, or bans electroconvulsive therapy 209

Legislation recapitulates litigation

Cinematic images of ECT

Popular and professional literature on ECT

Anti-ECT ideology and movement

A brief legislative history

The Texas experience

The informed consent model

Toward constructive law making

Conclusions

References

Part III International perspectives

13 Electroconvulsive therapy availability in the United States

Introduction

Sources of variation

Small-area analysis

State and regional variation

Service system variation

Service site: Public versus private hospital

Service site: Inpatient versus outpatient

Demographic variation: Age, gender, race/ethnicity, and socioeconomic factors

Age

Gender

Race/Ethnicity

Socioeconomic factors/insurance

State regulations (sociopolitical factors)

The future of ECT

Acknowledgments

References

14 Electroconvulsive therapy in Scandinavia and the United Kingdom

The practice of ECT in Scandinavia, past and present

A Scandinavian research tradition

Standards and practice of ECT: The United Kingdom context before the National Institute for Clinical Excellence

The National Institute for Clinical Excellence and ECT in the United Kingdom

Post-NICE developments in the United Kingdom

Training in ECT in Scandinavia

Training in ECT in the United Kingdom

The future of ECT in Scandinavia and the United Kingdom

References

15 Electroconvulsive therapy in continental Western Europe: A literature review

Introduction

Belgium

France

Germany

The Netherlands

Portugal

Spain

Discussion

References

16 Electroconvulsive therapy in Asia

Introduction

ECT rates

Indications for ECT

Age classification of patients receiving ECT

Sex distribution of patients receiving ECT

Technical aspects of ECT

Regulation of ECT and training of ECT professionals in Asia

Summary

References

17 History of electroconvulsive therapy in the Russian Federation

Introduction

ECT in the 1940s and 1950s: The bloom and the freeze

ECT in the 1960s and 1970s

From the 1980s through the end of the 20th century

Present ECT use in the Russian Federation

Editor’s note

18 Electroconvulsive therapy in Latin America

Introduction

Overview

Mental health in Latin America

The use of ECT

Rate of use

ECT technique

Informed consent

ECT training

History and use of ECT in specific countries

Argentina

Chile

Cuba

Mexico

Uruguay

Brazil

Conclusion

References

Part IV Administrative perspectives

19 Electroconvulsive therapy hospital policy and quality assurance

Introduction

General policies for ECT

I. Purpose

II. Policy

III. Definition

IV. Procedure

A. Legal requirements for informed consent

B. Convulsive treatment procedures for voluntary patients

C. Convulsive treatment procedures for involuntary patients (including anyone under Lanterman-Petris-Short (L-P-S) guardianship or conservatorship)

D. ECT procedures for minors

E. Review and post-treatment audit committee

F. Excessive use of convulsive treatment

G. Reports on convulsive treatment

H. Violation penalties

I. General guidelines for electroconvulsive therapy

J. Care of the patient receiving ECT: See “nursing responsibilities”

K. Outpatient ECT

L. ECT forms

ECT nursing responsibilities

I. Purpose

II. Policy

III. Procedures

A. Pre-ECT patient preparation

B. Inpatient transportation

C. Treatment room preparation

D. Nursing staff assistance during the ECT treatment

E. ECT recovery procedure

F. General post-ECT duties

Treating patients who are inpatients elsewhere

I. Purpose

II. Policy

III. Procedure

A. Pre-treatment

B. Treatment

C. Post-treatment/recovery

D. Medical emergencies

ECT for regional center patients

I. Purpose

II. Policy

III. Procedure

IV. Reporting requirements

Scope of service: electroconvulsive therapy (ECT)

Location and hours of operation

Scope of services provided

Staffing plan

Departmental performance improvement

Quality assurance monitors

References

20 Staff management and physical layout for electroconvulsive therapy

General concerns

Equipment necessary for ECT

The small hospital and small-volume operations

High-volume operations

IV access

Outpatient considerations

Treatment room considerations

Recovery room issues

The design of the ECT suite

Personnel summary

ECT nurse

Psychiatrist

Anesthetist

Recovery room nurse

Miscellany

References

21 Electroconvulsive therapy forms

Standing orders lists

The progress note

Nursing record and procedure verification

Ambulatory forms

Part V The clinical manual

22 Patient selection and electroconvulsive therapy indications

Introduction

The depression that ECT does not treat

ECT preventing anxiety disorders

DSM versus observable melancholia

ECT as first choice treatment

ECT or antipsychotics as first choice

Antidepressant-resistant depression

Antimanic medication–resistant manic episode

Medication-resistant acute psychosis

Medication-resistant intermediate-duration psychosis versus schizophrenia

Medication-resistant chronic psychosis or schizophrenia

ECT as prerequisite for other procedures

Medication-resistant agitated dementia

Closing

References

23 Electroconvulsive therapy or antipsychotic drugs (or benzodiazepines for catatonia)

Introduction

Mental side effects: Hypofrontality

Mental side effects: Tardive

Mental side effects: Other

Medical adverse effects

Patient tolerance and compliance

Therapeutic benefits

ECT versus benzodiazepines in catatonia

Physician behavior

References

24 Informed consent

Informed consent: Definitions and historical development

Legal application of the doctrine of informed consent

Practical strategies and methods to achieve informed consent

Discussion of the consent process

Discussion of the nature of the illness

Discussion of the reason for ECT and comparison with other treatment alternatives

Discussion of the nature of ECT treatment

Discussion of risk

Obstacles to informed consent with a competent patient

Competency

The incapacitated ECT patient

Court-ordered treatment and advance directives

Summary

References

25 Electroconvulsive therapy in the medically ill

Introduction

Cardiovascular disorders

CHF

CAD/Post-MI

Dysrhythmias

Pacemakers/Implantable cardioverter defibrillators

Vascular disease

Valvular disease

Anticoagulation

Neurological disorders

Dementia

Movement disorders

Cerebrovascular disease

Epilepsy

Intracranial space-occupying lesions

Pregnancy

Diabetes mellitus

Miscellaneous conditions

References

26 Anesthesia for electroconvulsive therapy

Anesthesia for electroconvulsive therapy

Rationale for anesthesia in electroconvulsive therapy

History

Anticholinergics

Induction agents

Muscle relaxants

Airway management

Concomitant medications

Issues related to the collaboration between anesthesiology and psychiatry

References

27 Stimulus electrode placement

Introduction

Efficacy

Cognitive issues

Neurobiology

Bitemporal ECT

Right unilateral ECT

LART ECT

Bifrontal ECT

References

28 Stimulus dosing

Introduction

Units of measure in defining the stimulus dose

Convulsive, subconvulsive, and sham stimulation

Stimulus waveform morphology

Antidepressant efficacy and the magnitude of the stimulus dose

Titrated dosing

Formula-based dosing

Fixed dosing

Cognitive side effects and the stimulus dose

Generalizations regarding stimulus dosing for acute treatment of depression

Adjusting the stimulus dose in response to dynamic physiology: “Benchmarking”

Benchmarking: Seizure morphology

Benchmarking: Cardiovascular reactivity

Augmentation strategies when the maximum stimulus dose is reached

Integrating the science of stimulus dosing with the choice

of electrode placement

Stimulus dosing in continuation/maintenance ECT in major depression

Examples of stimulus dosing with case vignettes

Case 1

Case 2

Case 3

Conclusion

Acknowledgment

Editor’s note

References

29 Electroencephalogram monitoring and implications

History of electroencephalogram monitoring

Recording electrode placement

Time course of ictal EEG

Scalp distribution of ictal EEG

Ictal EEG interpretation

Seizure duration

Seizure expression

Relationship to clinical changes, adverse effects, and depression

Missed seizure

Abortive or brief seizure

Prolonged seizure

References

30 Heart rate and electroconvulsive therapy

HR reflecting seizure activity

Peak HR and seizure quality

Benchmark Method of stimulus dose regulation

Tachycardia duration

References

31 Cognitive side effects and psychological testing

Introduction

Clinical evaluation: Mini Mental State Examination

Neuropsychological examination of patients treated with ECT

Postictal disorientation and confusion

General intelligence

Memory and new learning

Subjective memory complaints

Retrograde amnesia

Anterograde amnesia

Executive functions

Language function

Editor’s note

References

32 Electroconvulsive therapy in children and adolescents

Rates of use

Assessing adolescent patients for ECT

Need for treatment with ECT

Patient’s fitness to undergo ECT

Further baseline evaluations

ECT technique

General approach

Special considerations

Seizure threshold

Stimulus dose

Adverse events

Editor’s note

References

33 Postelectroconvulsive therapy evaluation and prophylaxis

Introduction

Continuation treatment after successful ECT

Depression

Patients without medication failure: post-ECT antidepressant

Postelectroconvulsive therapy evaluation and prophylaxis 507

Patients without medication failure: post-ECT lithium

Patients with medication failure: post-ECT antidepressant

Conclusions and recommendations regarding continuation pharmacotherapy for depression

Continuation ECT for depression

Indications for cECT

Praxis of cECT

Schizophrenia

Continuation ECT for schizophrenia

Bipolar Disorder

Editor’s note

References

34 Ambulatory and maintenance electroconvulsive therapy

Introduction

Ambulatory ECT

Maintenance ECT

References

Part VI Neuromodulation treatment

35 Transcranial magnetic stimulation

Introduction

Neurobiological background

TMS treatment

Major depression

Bipolar depression

Dysthymic disorder

Schizophrenia

Auditory hallucinations

Catatonia

Negative symptoms of schizophrenia

Bipolar mania

Post-traumatic stress disorder

Obsessive-compulsive disorder

Panic disorder

Tinnitus

TMS comparison with ECT

Safety issues

Low-/high-frequency/repetitive TMS

Risk for seizures

Treatment-emergent mania/hypomania

Occurrence of delusions

Contraindications to TMS treatment

Future prospects

Deep TMS

Editor’s note

References

36 Vagus nerve stimulation: Indications, efficacy, and methods

Introduction and background

Neuroanatomy of the vagus nerve

Mechanisms of action

VNS therapy system and surgical implant procedure

Indications for the use of VNS

VNS for the treatment of epilepsy

Rationale for VNS in depression

Pilot study of VNS in depression

Pivotal trial of VNS to treat depression

Treatment-Resistant Depression (TRD)

Suggested guidelines for VNS applications

Patient selection

VNS stimulation parameter settings

Patient safety and adverse effects

Conclusions and future directions

Editor’s note

References

37 Deep brain stimulation: Methods, indications, locations, and efficacy

Introduction

DBS method

History and principles of DBS

Safety and advantages of DBS

Neurobiology of depression and OCD

Studies of DBS and psychiatric disorders

Problems in target selection

DBS targets in depression

Targets in OCD

Ethical considerations and quality standards in DBS research

Inclusion criteria

Exclusion criteria

Conclusions

Editor’s note

References

38 Transcranial direct current stimulation

Introduction

Brief historical facts

How it works

Importance as a clinical tool

Adverse events

Clinical applications

Depression

Fibromyalgia

Epilepsy

Craving disorders

Parkinson’s disease

Memory

Anxiety disorders

Conclusions

References

Index

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