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Cheung K, Rathbone A, Melanson M, Trier J, Ritsma BR, Allen MD. Pathophysiology and management of critical illness polyneuropathy and myopathy. J Appl Physiol (1985) 2021; 130:1479-1489. [PMID: 33734888 PMCID: PMC8143786 DOI: 10.1152/japplphysiol.00019.2021] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/10/2021] [Accepted: 03/12/2021] [Indexed: 12/19/2022] Open
Abstract
Critical illness-associated weakness (CIAW) is an umbrella term used to describe a group of neuromuscular disorders caused by severe illness. It can be subdivided into three major classifications based on the component of the neuromuscular system (i.e. peripheral nerves or skeletal muscle or both) that are affected. This includes critical illness polyneuropathy (CIP), critical illness myopathy (CIM), and an overlap syndrome, critical illness polyneuromyopathy (CIPNM). It is a common complication observed in people with critical illness requiring intensive care unit (ICU) admission. Given CIAW is found in individuals experiencing grave illness, it can be challenging to study from a practical standpoint. However, over the past 2 decades, many insights into the pathophysiology of this condition have been made. Results from studies in both humans and animal models have found that a profound systemic inflammatory response and factors related to bioenergetic failure as well as microvascular, metabolic, and electrophysiological alterations underlie the development of CIAW. Current management strategies focus on early mobilization, achieving euglycemia, and nutritional optimization. Other interventions lack sufficient evidence, mainly due to a dearth of large trials. The goal of this Physiology in Medicine article is to highlight important aspects of the pathophysiology of these enigmatic conditions. It is hoped that improved understanding of the mechanisms underlying these disorders will lead to further study and new investigations for novel pharmacologic, nutritional, and exercise-based interventions to optimize patient outcomes.
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Affiliation(s)
- Kevin Cheung
- School of Medicine, Faculty of Health Sciences, Queen's University, Kingston, Ontario, Canada
| | - Alasdair Rathbone
- Department of Physical Medicine and Rehabilitation, Queen's University, Kingston, Ontario, Canada
| | - Michel Melanson
- Division of Neurology, Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Jessica Trier
- Department of Physical Medicine and Rehabilitation, Queen's University, Kingston, Ontario, Canada
| | - Benjamin R Ritsma
- Department of Physical Medicine and Rehabilitation, Queen's University, Kingston, Ontario, Canada
| | - Matti D Allen
- Department of Physical Medicine and Rehabilitation, Queen's University, Kingston, Ontario, Canada
- School of Kinesiology, Faculty of Arts and Sciences, Queen's University, Kingston, Ontario, Canada
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Ashat M, Lewis A, Liaquat H, Stocker A, McElmurray L, Vedanarayanan V, Soota K, Howell T, Kedar A, Obert J, Abell TL. Intravenous immunoglobulin in drug and device refractory patients with the symptoms of gastroparesis-an open-label study. Neurogastroenterol Motil 2018; 30. [PMID: 29205691 DOI: 10.1111/nmo.13256] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 10/29/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Gastroparesis is a complex clinical entity; many aspects of which remain unknown. Although most patients have idiopathic, diabetic, or postsurgical gastroparesis, many are thought to have measurable neuromuscular abnormalities. Immunotherapy has recently been utilized to treat suspected autoimmune gastrointestinal dysmotility. METHODS Fourteen patients with symptoms of gastroparesis (Gp) who were refractory to drug/device were selected from 443 Gp patients from 2013 to 2015 who were treated at the University of Louisville motility center. All patients underwent a structural and psychiatric evaluation along with detailed psychological and behavioral examination to rule out eating disorders. We performed detailed neuromuscular evaluation and all 14 patients received at least 12 weeks of intravenous immunoglobulin (400 mg/kg infusion weekly). Response was defined subjectively (symptomatic improvement) using standardized IDIOM score system. KEY RESULTS All 14 patients had serological evidence and/or tissue evidence of immunological abnormality. Post-IVIG therapy, there was a significant improvement in symptoms scores for nausea, vomiting, early satiety, and abdominal pain. CONCLUSIONS AND INFERENCES Although limited by the absence of placebo group, the data illustrate the role of autoimmunity and neuromuscular evaluation in patients with gastroparesis and support the utility of a diagnostic trial of immunotherapy in an effort to improve therapeutic outcomes for such patients.
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Affiliation(s)
- M Ashat
- Division of Gastroenterology, Hepatology & Nutrition, Department of Medicine, University of Iowa, Iowa City, IA, USA
| | - A Lewis
- Department of Internal Medicine, University of Louisville, Louisville, KY, USA
| | - H Liaquat
- Division of Gastroenterology, Hepatology & Nutrition, Department of Medicine, University of Louisville, Louisville, KY, USA
| | - A Stocker
- Division of Gastroenterology, Hepatology & Nutrition, Department of Medicine, University of Louisville, Louisville, KY, USA
| | - L McElmurray
- Division of Gastroenterology, Hepatology & Nutrition, Department of Medicine, University of Louisville, Louisville, KY, USA
| | - V Vedanarayanan
- Division of Neuromuscular Medicine, University of Mississippi, Oxford, MS, USA
| | - K Soota
- Division of Gastroenterology, Hepatology & Nutrition, Department of Medicine, University of Iowa, Iowa City, IA, USA
| | - T Howell
- GI Motility Clinic, Jewish Hospital, Louisville, KY, USA
| | - A Kedar
- Division of Medicine, University of Mississippi Medical Center, Jackson, MS, USA
| | - J Obert
- Division of Gastroenterology, Hepatology & Nutrition, Department of Medicine, University of Louisville, Louisville, KY, USA
| | - T L Abell
- Division of Gastroenterology, Hepatology & Nutrition, Department of Medicine, Jewish Hospital GI Motility Clinic, University of Louisville, Louisville, KY, USA
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Ruelle L, Bentea G, Sideris S, El Koulali M, Holbrechts S, Lafitte JJ, Grigoriu B, Sculier C, Meert AP, Durieux V, Berghmans T, Sculier JP. Autoimmune paraneoplastic syndromes associated to lung cancer: A systematic review of the literature Part 4: Neurological paraneoplastic syndromes, involving the peripheral nervous system and the neuromuscular junction and muscles. Lung Cancer 2017; 111:150-163. [PMID: 28838388 DOI: 10.1016/j.lungcan.2017.07.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The development of new immune treatment in oncology and particularly for lung cancer may induce new complications, particularly activation or reactivation of auto-immune diseases. In this context, a systematic review on the auto-immune paraneoplastic syndromes that can complicate lung cancer appears useful. This article is the fourth of a series of five and deals mainly with neurological paraneoplastic syndromes involving the peripheral nervous system and the neuromuscular junction and muscles.
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Affiliation(s)
- Lucien Ruelle
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium
| | - Georgiana Bentea
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium
| | - Spyridon Sideris
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium
| | - Mohamed El Koulali
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium
| | | | | | - Bogdan Grigoriu
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium
| | - Claudine Sculier
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium
| | - Anne-Pascale Meert
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium; Laboratoire facultaire de Médecine factuelle (ULB), Belgium
| | - Valérie Durieux
- Laboratoire facultaire de Médecine factuelle (ULB), Belgium; Bibliothèque des Sciences de la Santé, Université libre de Bruxelles (ULB), Belgium
| | - Thierry Berghmans
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium; Laboratoire facultaire de Médecine factuelle (ULB), Belgium
| | - Jean-Paul Sculier
- Service des Soins Intensifs et Urgences Oncologiques & Thoracic Oncology Institut Jules Bordet, Centre des Tumeurs de l'Université Libre de Bruxelles (ULB), Belgium; Laboratoire facultaire de Médecine factuelle (ULB), Belgium.
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Review of the Diagnostic Challenges of Lambert–Eaton Syndrome Revealed Through Three Case Reports. Can J Neurol Sci 2016; 43:635-47. [DOI: 10.1017/cjn.2016.268] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
AbstractLambert–Eaton syndrome (LES) is a rare immune-mediated disorder characterized by proximal leg weakness, autonomic symptoms and hypoactive tendon reflexes. The paraneoplastic form is associated with small-cell lung cancer in 50-60% of cases, whereas the remaining cases are found in younger adults with a higher likelihood of coexisting autoimmune disease. The early recognition of LES is crucial for improving clinical outcomes but remains a major challenge. In this review, we analyze the clinical characteristics and diagnostic considerations in treating LES through a series of three case studies, one of which showed definitive response to pyridostigmine and corticosteroid combination therapy, followed by spontaneous remission. Patients were assessed by image-based screening, serological testing and electrophysiological evaluations, which included respiratory and autonomic testing. A better understanding of the common pitfalls in the clinical, serological and neurophysiologic diagnosis of LES through assessment of typical LES dysfunction throughout the nervous system should enable improved recognition and treatment of this syndrome.
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Kaira K, Okamura T, Takahashi H, Horiguchi N, Sunaga N, Hisada T, Yamada M. Small-cell lung cancer with voltage-gated calcium channel antibody-positive paraneoplastic limbic encephalitis: a case report. J Med Case Rep 2014; 8:119. [PMID: 24712889 PMCID: PMC4000153 DOI: 10.1186/1752-1947-8-119] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Accepted: 02/11/2014] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Paraneoplastic limbic encephalitis is a rare neurological syndrome and clinically characterized by cognitive dysfunction, memory impairment, seizures and psychiatric symptoms. Paraneoplastic limbic encephalitis is most frequently found in small-cell lung cancer, among various malignancies, and antineuronal antibodies are related to the autoimmune mechanism. We experienced a rare case of a patient with small-cell lung cancer with anti-voltage-gated calcium channel antibody-positive paraneoplastic limbic encephalitis. CASE PRESENTATION A 61-year-old Japanese man with a history of smoking cigarettes presented with seizure, confusion and personality change in acute onset. Brain magnetic resonance imaging showed high signal intensity on T2-weighted image in his right temporal lobe, suggestive of limbic encephalitis. A mediastinoscopy of the lymph node revealed small-cell lung carcinoma, and he was staged as having limited stage disease. Antibodies against P/Q-type and N-type voltage-gated calcium channel were positive and Hu antibody was negative. He was started on chemotherapy of carboplatin plus etoposide with concurrent thoracic radiotherapy. Neurological symptoms were gradually improved after systemic chemotherapy. CONCLUSIONS We should be alert to the potential of malignant neoplasms associated with paraneoplastic limbic encephalitis when we examine a patient with cancer with neurological disorders such as personality change, disorientation, unconsciousness and memory loss. A clinical marker such as voltage-gated calcium channel antibody may help our diagnosis in clinical practice.
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Affiliation(s)
- Kyoichi Kaira
- Department of Medicine and Molecular Science, Graduate School of Medicine, Gunma University, Showa-machi, Maebashi, Gunma 371-8511, Japan.
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Kleopa KA. Autoimmune channelopathies of the nervous system. Curr Neuropharmacol 2012; 9:458-67. [PMID: 22379460 PMCID: PMC3151600 DOI: 10.2174/157015911796557966] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Revised: 03/16/2010] [Accepted: 03/16/2010] [Indexed: 12/20/2022] Open
Abstract
Ion channels are complex transmembrane proteins that orchestrate the electrical signals necessary for normal function of excitable tissues, including the central nervous system, peripheral nerve, and both skeletal and cardiac muscle. Progress in molecular biology has allowed cloning and expression of genes that encode channel proteins, while comparable advances in biophysics, including patch-clamp electrophysiology and related techniques, have made the functional assessment of expressed proteins at the level of single channel molecules possible. The role of ion channel defects in the pathogenesis of numerous disorders has become increasingly apparent over the last two decades. Neurological channelopathies are frequently genetically determined but may also be acquired through autoimmune mechanisms. All of these autoimmune conditions can arise as paraneoplastic syndromes or independent from malignancies. The pathogenicity of autoantibodies to ion channels has been demonstrated in most of these conditions, and patients may respond well to immunotherapies that reduce the levels of the pathogenic autoantibodies. Autoimmune channelopathies may have a good prognosis, especially if diagnosed and treated early, and if they are non-paraneoplastic. This review focuses on clinical, pathophysiologic and therapeutic aspects of autoimmune ion channel disorders of the nervous system.
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Affiliation(s)
- Kleopas A Kleopa
- Neurology Clinics and Neuroscience Laboratory, The Cyprus Institute of Neurology and Genetics, Cyprus
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Bird SJ. Diagnosis and management of critical illness polyneuropathy and critical illness myopathy. Curr Treat Options Neurol 2011; 9:85-92. [PMID: 17298769 DOI: 10.1007/s11940-007-0034-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Newly acquired neuromuscular weakness commonly develops in the setting of critical illness. This weakness delays recovery and often causes prolonged ventilator dependence. An axonal sensory-motor polyneuropathy, critical illness polyneuropathy (CIP), is seen in up to a third of critically ill patients with the systemic inflammatory response syndrome (usually due to sepsis). As frequently, or more so, an acute myopathy, critical illness myopathy (CIM), develops in a similar setting, often in association with the use of corticosteroids and/or nondepolarizing neuromuscular-blocking agents. This paper reviews the clinical features, diagnostic approach, and treatment of CIP and CIM. There are no specific pharmacologic treatments for CIP or CIM, but recognizing the presence of one of these disorders often improves management. Prevention of CIP and CIM is feasible in part by avoiding risk factors and by aggressive medical management of critically ill patients. Intensive insulin therapy in intensive care unit patients appears to reduce the likelihood of developing CIP and/or CIM. Future treatments of sepsis may further reduce the incidence of these neuromuscular consequences of critical illness.
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Affiliation(s)
- Shawn J Bird
- Shawn J. Bird, MD Department of Neurology, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA.
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Abstract
BACKGROUND Neuromuscular junction disorders are usually categorized as either presynaptic or postsynaptic. The most frequently encountered disorder of the postsynaptic neuromuscular junction is acquired myasthenia gravis. Lambert-Eaton myasthenic syndrome is a well-known prototype of the presynaptic autoimmune disorders of neuromuscular transmission. These major disorders of neuromuscular transmission are relatively common and distinctly recognized, but co-occurrence of these disorders (overlap myasthenic syndrome) is rare and has so far attracted little attention. REVIEW SUMMARY This report describes a patient with acquired myasthenia gravis and immunologic coexistence of Lambert-Eaton myasthenic syndrome (overlap myasthenic syndrome) in association with abdominal/uterine leiomyosarcoma. The patient presented with acute respiratory failure, making identification and management of her illness challenging. A general overview of the complexities associated with overlap between myasthenia gravis and Lambert-Eaton myasthenic syndrome is provided and this patient's complicated clinical course and response to therapy are discussed. CONCLUSION To our knowledge, this is the first report of overlap myasthenic syndrome in conjunction with abdominal leiomyosarcoma. The immunologic coexistence of acquired myasthenia gravis and Lambert-Eaton myasthenic syndrome in a patient with a malignant smooth-muscle tumor is intriguing and suggests that a common paraneoplastic process targeting 2 different onconeural antigens was the underlying pathogenic mechanism in this patient.
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Affiliation(s)
- Fereydoon Roohi
- Department of Neurology and the Division of Pulmonary Medicine, Long Island College Hospital, Brooklyn, New York 11201, USA.
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Hiasa Y, Kunishige M, Mitsui T, Kondo S, Kuriwaka R, Shigekiyo S, Kanematsu T, Satake N, Bando Y, Kondo A, Endo I, Oshima Y, Matsumoto T. Complicated paraneoplastic neurological syndromes: a report of two patients with small cell or non-small cell lung cancer. Clin Neurol Neurosurg 2004; 106:47-9. [PMID: 14643918 DOI: 10.1016/s0303-8467(03)00059-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Paraneoplastic neurological syndromes are frequently associated in patients with small cell lung cancer (SCLC) and antineuronal antibodies are involved in the autoimmune mechanism. Multiple syndromes are sometimes complicated in a single patient with SCLC. However, little is known about non-SCLC-associated neurological manifestations. We report two patients with complicated paraneoplastic neurological syndromes. Patient 1 showed paraneoplastic limbic encephalitis (PLE), paraneoplastic sensory neuropathy (PSN) and Lambert-Eaton myasthenic syndrome (LEMS) associated with SCLC. Patient 2 developed opsoclonus-ataxia and probable PLE associated with non-SCLC. Analysis of various antineuronal antibodies revealed that anti-Hu and P/Q-type voltage-gated calcium channel (VGCC) antibodies were positive in Patient 1 but any antibodies were not in Patient 2. Brain MRI demonstrated high intensity signals in temporal lobes particularly on fluid-attenuated inversion recovery (FLAIR) or diffusion-weighted images. These findings suggest that complicated paraneoplastic neurological syndromes occur in non-SCLC as well as SCLC and that unidentified antineuronal autoantibodies may underlie the pathophysiology.
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Affiliation(s)
- Yukiko Hiasa
- First Department of Internal Medicine, University of Tokushima School of Medicine, 3 Kuramoto-cho, Tokushima city, Tokushima 770-8503, Japan
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Kleopa KA, Zamba-Papanicolaou E, Kyriakides T. Compressive lumbar myelopathy presenting as segmental motor neuron disease. Muscle Nerve 2003; 28:69-73. [PMID: 12811775 DOI: 10.1002/mus.10405] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Four patients presented with slowly progressive, bilateral, asymmetric weakness and muscle atrophy in the lower extremities, accompanied by cramps and fasciculations. Sensory symptoms were insignificant. There was no bladder or bowel disturbance. Upper extremities and cranial nerves were normal. Weakness was found in lumbosacral myotomes, ranging from L2 to S1. The tendon reflexes varied, and extensor plantar responses were found in one case with proximal leg involvement. Nerve conduction studies were normal, but segmental chronic and often active denervation confined to the weak myotomes in the lower extremities was found in the electromyogram. Magnetic resonance imaging showed evidence of spondylotic lumbosacral myelopathy associated with disc herniation or osteophytic arthropathy at the T11/T12 spinal level in all patients, with increased signal within the adjacent cord. This unusual purely motor presentation may result from ischemic myelopathy secondary to compression of the anterior spinal artery.
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Affiliation(s)
- Kleopas A Kleopa
- Department of Clinical Neurosciences, The Cyprus Institute of Neurology and Genetics, PO Box 23462, 1683 Nicosia, Cyprus
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Meert AP, Paesmans M, Berghmans T, Martin B, Mascaux C, Vallot F, Verdebout JM, Lafitte JJ, Sculier JP. Prophylactic cranial irradiation in small cell lung cancer: a systematic review of the literature with meta-analysis. BMC Cancer 2001; 1:5. [PMID: 11432756 PMCID: PMC34096 DOI: 10.1186/1471-2407-1-5] [Citation(s) in RCA: 186] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2001] [Accepted: 06/19/2001] [Indexed: 12/30/2022] Open
Abstract
PURPOSE A systematic review of the literature was carried out to determine the role of prophylactic cranial irradiation (PCI) in small cell lung cancer (SCLC). METHODS To be eligible, full published trials needed to deal with SCLC and to have randomly assigned patients to receive PCI or not. Trials quality was assessed by two scores (Chalmers and ELCWP). RESULTS Twelve randomised trials (1547 patients) were found to be eligible. Five evaluated the role of PCI in SCLC patients who had complete response (CR) after chemotherapy. Brain CT scan was done in the work-up in five studies and brain scintigraphy in six. Chalmers and ELCWP scores are well correlated (p < 0.001), with respective median scores of 32.6 and 38.8 %. This meta-analysis based on the available published data reveals a decrease of brain metastases incidence (hazard ratio (HR): 0.48; 95 % confidence interval (CI): 0.39 - 0.60) for all the studies and an improvement of survival (HR: 0.82; 95 % CI: 0.71 - 0.96) in patients in CR in favour of the PCI arm. Unfortunately, long-term neurotoxicity was not adequately described. CONCLUSIONS PCI decreases brain metastases incidence and improves survival in CR SCLC patients but these effects were obtained in patients who had no systematic neuropsychological and brain imagery assessments. The long-term toxicity has not been prospectively evaluated. If PCI can be recommended in patients with SCLC and CR documented by a work-up including brain CT scan, data are lacking to generalise its use to any CR situations.
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Affiliation(s)
| | | | | | - Benoît Martin
- Service de Médecine, Institut Jules Bordet, Bruxelles, Belgique
| | - Céline Mascaux
- Service de Médecine, Institut Jules Bordet, Bruxelles, Belgique
| | - Frédéric Vallot
- Service de Médecine, Institut Jules Bordet, Bruxelles, Belgique
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