Clozapine-Induced Late Agranulocytosis and Severe Neutropenia Complicated with Streptococcus pneumonia, Venous Thromboembolism, and Allergic Vasculitis in Treatment-Resistant Female Psychosis

Clozapine is a second-generation antipsychotic agent from the benzodiazepine group indicated for treatment-resistant schizophrenia and other psychotic conditions. Using clozapine earlier on once a case appears to be refractory limits both social and personal morbidity of chronic psychosis. However t...

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Main Authors: Christina Voulgari, Raphael Giannas, Georgios Paterakis, Anna Kanellou, Nikolaos Anagnostopoulos, Stamata Pagoni
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Case Reports in Medicine
Online Access:http://dx.doi.org/10.1155/2015/703218
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author Christina Voulgari
Raphael Giannas
Georgios Paterakis
Anna Kanellou
Nikolaos Anagnostopoulos
Stamata Pagoni
author_facet Christina Voulgari
Raphael Giannas
Georgios Paterakis
Anna Kanellou
Nikolaos Anagnostopoulos
Stamata Pagoni
author_sort Christina Voulgari
collection DOAJ
description Clozapine is a second-generation antipsychotic agent from the benzodiazepine group indicated for treatment-resistant schizophrenia and other psychotic conditions. Using clozapine earlier on once a case appears to be refractory limits both social and personal morbidity of chronic psychosis. However treatment with second-generation antipsychotics is often complicated by adverse effects. We present a case of a 33-year-old Caucasian woman with a 25-year history of refractory psychotic mania after switching to a 2-year clozapine therapy. She presented clozapine-induced absolute neutropenia, agranulocytosis, which were complicated by Streptococcus pneumonia and sepsis. Clozapine-induced thromboembolism of the common femoral and right proximal iliac vein, as well as allergic vasculitis, was diagnosed. She achieved full remission on granulocyte-colony stimulating factor and specific antibiotic treatment. Early detection of severe clozapine-induced absolute neutropenia and agranulocytosis enabled the effective treatment of two among its most severe complications. Additional evidence to the previously reported possible causal relation between clozapine and venous thromboembolism is offered. Finally, clozapine-induced allergic vasculitis is confirmed as a late adverse effect of clozapine therapy.
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institution Kabale University
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series Case Reports in Medicine
spelling doaj-art-65b889dcda5c40dfa1bfdf8768f674072025-02-03T01:03:09ZengWileyCase Reports in Medicine1687-96271687-96352015-01-01201510.1155/2015/703218703218Clozapine-Induced Late Agranulocytosis and Severe Neutropenia Complicated with Streptococcus pneumonia, Venous Thromboembolism, and Allergic Vasculitis in Treatment-Resistant Female PsychosisChristina Voulgari0Raphael Giannas1Georgios Paterakis2Anna Kanellou3Nikolaos Anagnostopoulos4Stamata Pagoni53rd Department of Internal Medicine, Athens General Regional Hospital “G. Gennimatas”, Mesogeion Avenue 154, 115 27 Athens, Greece3rd Department of Internal Medicine, Athens General Regional Hospital “G. Gennimatas”, Mesogeion Avenue 154, 115 27 Athens, GreeceFlow Cytometry Laboratory, Department of Immunology, Athens General Regional Hospital “G. Gennimatas”, Athens, Greece3rd Department of Internal Medicine, Athens General Regional Hospital “G. Gennimatas”, Mesogeion Avenue 154, 115 27 Athens, GreeceDepartment of Hematology, Athens General Regional Hospital “G. Gennimatas”, Athens, Greece3rd Department of Internal Medicine, Athens General Regional Hospital “G. Gennimatas”, Mesogeion Avenue 154, 115 27 Athens, GreeceClozapine is a second-generation antipsychotic agent from the benzodiazepine group indicated for treatment-resistant schizophrenia and other psychotic conditions. Using clozapine earlier on once a case appears to be refractory limits both social and personal morbidity of chronic psychosis. However treatment with second-generation antipsychotics is often complicated by adverse effects. We present a case of a 33-year-old Caucasian woman with a 25-year history of refractory psychotic mania after switching to a 2-year clozapine therapy. She presented clozapine-induced absolute neutropenia, agranulocytosis, which were complicated by Streptococcus pneumonia and sepsis. Clozapine-induced thromboembolism of the common femoral and right proximal iliac vein, as well as allergic vasculitis, was diagnosed. She achieved full remission on granulocyte-colony stimulating factor and specific antibiotic treatment. Early detection of severe clozapine-induced absolute neutropenia and agranulocytosis enabled the effective treatment of two among its most severe complications. Additional evidence to the previously reported possible causal relation between clozapine and venous thromboembolism is offered. Finally, clozapine-induced allergic vasculitis is confirmed as a late adverse effect of clozapine therapy.http://dx.doi.org/10.1155/2015/703218
spellingShingle Christina Voulgari
Raphael Giannas
Georgios Paterakis
Anna Kanellou
Nikolaos Anagnostopoulos
Stamata Pagoni
Clozapine-Induced Late Agranulocytosis and Severe Neutropenia Complicated with Streptococcus pneumonia, Venous Thromboembolism, and Allergic Vasculitis in Treatment-Resistant Female Psychosis
Case Reports in Medicine
title Clozapine-Induced Late Agranulocytosis and Severe Neutropenia Complicated with Streptococcus pneumonia, Venous Thromboembolism, and Allergic Vasculitis in Treatment-Resistant Female Psychosis
title_full Clozapine-Induced Late Agranulocytosis and Severe Neutropenia Complicated with Streptococcus pneumonia, Venous Thromboembolism, and Allergic Vasculitis in Treatment-Resistant Female Psychosis
title_fullStr Clozapine-Induced Late Agranulocytosis and Severe Neutropenia Complicated with Streptococcus pneumonia, Venous Thromboembolism, and Allergic Vasculitis in Treatment-Resistant Female Psychosis
title_full_unstemmed Clozapine-Induced Late Agranulocytosis and Severe Neutropenia Complicated with Streptococcus pneumonia, Venous Thromboembolism, and Allergic Vasculitis in Treatment-Resistant Female Psychosis
title_short Clozapine-Induced Late Agranulocytosis and Severe Neutropenia Complicated with Streptococcus pneumonia, Venous Thromboembolism, and Allergic Vasculitis in Treatment-Resistant Female Psychosis
title_sort clozapine induced late agranulocytosis and severe neutropenia complicated with streptococcus pneumonia venous thromboembolism and allergic vasculitis in treatment resistant female psychosis
url http://dx.doi.org/10.1155/2015/703218
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