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Tetracyclines-An Important Therapeutic Tool for Dermatologists. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127246. [PMID: 35742496 PMCID: PMC9224192 DOI: 10.3390/ijerph19127246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/04/2022] [Accepted: 06/08/2022] [Indexed: 11/27/2022]
Abstract
Tetracyclines are a group of antibiotics whose first representative was discovered over 70 years ago. Since then, they have been of great interest in dermatology. In addition to their antibacterial activity, they are able to inhibit metalloproteinases and exhibit anti-inflammatory, anti-apoptotic and antioxidant effects. The side effects have been thoroughly studied over the years, the most characteristic and important ones in daily dermatological practice being: phototoxicity, hyperpigmentation, onycholysis, photoonycholysis, induced lupus erythematosus, and idiopathic intracranial hypertension. In this article, we summarize the use of tetracyclines in infectious diseases and inflammatory dermatoses, and further discuss the instances where the efficacy and safety of tetracyclines have been highlighted over the past few years.
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Gasparian S, Geng X, Hawy E. Intracranial hypertension associated with topical tretinoin use. Am J Ophthalmol Case Rep 2021; 23:101130. [PMID: 34169180 PMCID: PMC8207225 DOI: 10.1016/j.ajoc.2021.101130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/11/2021] [Accepted: 05/31/2021] [Indexed: 11/25/2022] Open
Abstract
Purpose To report cross-reactivity between topical vitamin A derivatives and tetracycline-class antibiotics. Observations A 19-year old woman with a remote history of resolved secondary intracranial hypertension due to minocycline use developed intracranial hypertension while using topical tretinoin alone. Examination demonstrated bilateral optic nerve edema, a right sixth cranial nerve palsy, along with characteristic features of markedly elevated intracranial pressure on imaging. Lumbar puncture opening pressure was 60 cmH2O. Cessation of topical tretinoin use ensued complete resolution of symptoms and optic nerve swelling in both eyes. Conclusions and importance Our findings substantiate the need to avoid topical vitamin A derivatives and alternate drug classes known to be associated with drug-induced intracranial hypertension.
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Affiliation(s)
- Suzie Gasparian
- Department of Ophthalmology, Loma Linda University, 11370 Anderson Street, Suite 2025, Loma Linda, CA 92354, USA
| | - Xianzhang Geng
- Department of Ophthalmology, Loma Linda University, 11370 Anderson Street, Suite 2025, Loma Linda, CA 92354, USA
| | - Eman Hawy
- Department of Ophthalmology, Loma Linda University, 11370 Anderson Street, Suite 2025, Loma Linda, CA 92354, USA
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Martins TGDS, Miranda Sipahi A, Dos Santos FM, Schor P, Anschütz A, Mendes LGA, Silva R. Eye disorders in patients with celiac disease and inflammatory bowel disease: A study using clinical data warehouse. Eur J Ophthalmol 2021; 32:11206721211012849. [PMID: 33896218 DOI: 10.1177/11206721211012849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND AIM To analyze the prevalence of ophthalmic manifestations in patients with celiac disease, Crohn's disease and ulcerative colitis in Munich/Germany. METHODS A total of 272,873 patients of Ludwig Maximilians Universitat Ophthalmological Hospital with eye disease were evaluated between 2003 and 2019. The International Classification of Diseases, 10th revision (ICD-10) of celiac disease Crohn's disease, ulcerative colitis, and all medical records which had the diagnosis of these diseases were analyzed. RESULTS A total of 272,873 patients were analyzed, with a mean age of 53 years, with approximately 48% female patients, and 51% male patients. We selected 72 patients with celiac disease (68% women and 32% men), with a minimum age of 8 years, maximum of 103 years, and an average of 52 years. The most common diagnoses were dry eye (32%) and cataract (12%). The mean intraocular pressure of patients with celiac disease was 15 mmHg. During the same study period, 103 patients with Crohn's disease were analyzed, with an average intraocular pressure of 14 mmHg.The minimum age of the patients was 12 years and a maximum of 93 years with an average age of 55 years, with 57% of females and 43% of males. The most common diagnoses were cataract (22%) and dry eye (19%). During the same study period, 99 patients with ulcerative colitis were analyzed, with an average intraocular pressure of 14 mmHg.The minimum age of the patients was 6 years and a maximum of 96 years, with an average age of 61 years, with 36% of females and 64% of males. The most common diagnoses were cataract (29.2%) and dry eye (12%). CONCLUSIONS The main ophthalmological manifestations of patients requiring eye follow-up were dry eye and cataract for all the diseases analyzed, which can be considered as coincident complications. None of the three diseases had increased intraocular pressure. Thus, celiac disease presented a profile of ophthalmological manifestation similar to the other intestinal inflammatory diseases studied.
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Affiliation(s)
- Thiago Goncalves Dos Santos Martins
- Federal University of São Paulo (UNIFESP), São Paulo, Brazil
- Clinical and Experimental Gastroenterology Laboratory-LIM07, HCFMUSP Clinical Hospital, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
- Ludwig Maximilians Universitat (LMU), Munique, Germany
- University of Coimbra, Coimbra, Portugal
| | - Aytan Miranda Sipahi
- Clinical and Experimental Gastroenterology Laboratory-LIM07, HCFMUSP Clinical Hospital, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Fabiana Maria Dos Santos
- Clinical and Experimental Gastroenterology Laboratory-LIM07, HCFMUSP Clinical Hospital, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Paulo Schor
- Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| | | | | | - Rufino Silva
- University of Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, Coimbra, Portugal
- Ophthalmology Department, Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal
- Association for Innovation and Biomedical Research on Light and Image (AIBILI), Coimbra, Portugal
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Gurnari C, Voso MT, Girardi K, Mastronuzzi A, Strocchio L. Acute Promyelocytic Leukemia in Children: A Model of Precision Medicine and Chemotherapy-Free Therapy. Int J Mol Sci 2021; 22:ijms22020642. [PMID: 33440683 PMCID: PMC7826974 DOI: 10.3390/ijms22020642] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 12/12/2022] Open
Abstract
Acute promyelocytic leukemia (APL) represents a paradigm of precision medicine. Indeed, in the last decades, the introduction of all-trans retinoic acid (ATRA) and arsenic trioxide (ATO) completely revolutionized the therapeutic approach to this previously highly fatal disorder. This entirely chemotherapy-free treatment, which provided excellent survival rates, has been initially validated in adults and, recently, translated in the pediatric setting. This review summarizes currently available data on the use of ATRA and ATO combination in pediatric APL, providing a particular focus on peculiar issues and challenges, such as the occurrence of pseudotumor cerebri and death during induction (early death), as well as the advantage offered by the ATO/ATRA combination in sparing long-term sequelae.
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Affiliation(s)
- Carmelo Gurnari
- Department of Pediatric Hemato-Oncology and Cell and Gene Therapy, Istituto di Ricovero e Cura a Carattere Scientifico Bambino Gesù Children’s Hospital, 00165 Rome, Italy; (C.G.); (K.G.); (A.M.)
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, 00133 Rome, Italy;
- Immunology, Molecular Medicine and Applied Biotechnology, University of Rome Tor Vergata, 00133 Rome, Italy
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Maria Teresa Voso
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, 00133 Rome, Italy;
- Laboratorio di Neuro-Oncoematologia, Fondazione Santa Lucia, 00179 Rome, Italy
| | - Katia Girardi
- Department of Pediatric Hemato-Oncology and Cell and Gene Therapy, Istituto di Ricovero e Cura a Carattere Scientifico Bambino Gesù Children’s Hospital, 00165 Rome, Italy; (C.G.); (K.G.); (A.M.)
| | - Angela Mastronuzzi
- Department of Pediatric Hemato-Oncology and Cell and Gene Therapy, Istituto di Ricovero e Cura a Carattere Scientifico Bambino Gesù Children’s Hospital, 00165 Rome, Italy; (C.G.); (K.G.); (A.M.)
| | - Luisa Strocchio
- Department of Pediatric Hemato-Oncology and Cell and Gene Therapy, Istituto di Ricovero e Cura a Carattere Scientifico Bambino Gesù Children’s Hospital, 00165 Rome, Italy; (C.G.); (K.G.); (A.M.)
- Correspondence:
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Zhang Y, Qiu Y, Wang Z, Wang R, Jin R, Hinkle LE, Wu X. High-Dose Methotrexate-Induced Idiopathic Intracranial Hypertension in Infant Acute Lymphoblastic Leukemia. Front Pharmacol 2020; 11:839. [PMID: 32625086 PMCID: PMC7311754 DOI: 10.3389/fphar.2020.00839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/21/2020] [Indexed: 11/30/2022] Open
Abstract
A 7-month-old baby girl with acute lymphoblastic leukemia (ALL) presented with bulging anterior fontanelle after completing the first and second courses of high-dose methotrexate (HD-MTX) chemotherapy. Between courses, the infant recovered and was discharged. Prior to the third and fourth HD-MTX courses, the baby girl was administered infusions of dexamethasone, which prevented recurrence of neurological side effects observed after the first and second courses of HD-MTX. To our knowledge, this is the first reported case of HD-MTX-induced idiopathic intracranial hypertension in infants, and that prophylactic use of dexamethasone can be applied to prevent acute intracranial hypertension following HD-MTX infusion.
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Affiliation(s)
- Yazhi Zhang
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yining Qiu
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhujun Wang
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ran Wang
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Runming Jin
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Louis Edward Hinkle
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, United States
| | - Xiaoyan Wu
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Tan MG, Worley B, Kim WB, ten Hove M, Beecker J. Drug-Induced Intracranial Hypertension: A Systematic Review and Critical Assessment of Drug-Induced Causes. Am J Clin Dermatol 2020; 21:163-172. [PMID: 31741184 DOI: 10.1007/s40257-019-00485-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Idiopathic intracranial hypertension (IIH) is a condition with increased intracranial pressure of unknown etiology. Its presenting symptoms include persistent headache, pulsatile tinnitus, and visual obscuration. It tends to occur in obese women of childbearing age, and its greatest risk is irreversible loss of vision. Some of the commonly used medications in dermatology, especially those for acne vulgaris, have been associated with IIH. However, the creation of specific risk categories for drugs as a guide for clinicians has never been performed. OBJECTIVE The aim of this study was to critically assess all published cases of IIH and identify high-risk drugs associated with drug-induced intracranial hypertension (DIIH), to assist dermatologists and other physicians with patient education and monitoring of symptoms of secondary intracranial hypertension. METHODS MEDLINE, EMBASE, and Cochrane Review Databases were searched for all cases of IIH thought to be drug-related between January 1900 and June 2019. A total of 5117 articles were identified, and 235 articles were found to be relevant. All cases were assessed to satisfy the modified Dandy criteria for diagnosis of IIH, and the likelihood of each case being a 'definite' adverse drug reaction (ADR) was determined using the Koh algorithm for ADR. An association category (from weakly associated [Category I] to strongly associated [Category V]) was assigned based on the number of cases meeting these two criteria. RESULTS There were 259 verifiable cases of DIIH. Vitamin A derivatives, tetracycline-class antibiotics, recombinant growth hormone, and lithium were found to be most strongly associated with DIIH (Categories IV and V). Corticosteroids were moderately associated with DIIH (Category III). Drugs that were weakly associated with DIIH (Categories I and II) include cyclosporine, progestin-only contraceptives, combined oral contraceptives, second- and third-generation fluoroquinolones, sulfenazone, gonadotropin-releasing hormones and luteinizing hormone-releasing hormone agonist, nalidixic acid, amiodarone, stanozolol, danazol, divalproic acid, sulfasalazine, ketoconazole, and ustekinumab. CONCLUSION We suggest using the term 'drug-induced intracranial hypertension' (DIIH) and propose a set of diagnostic criteria for DIIH. Our review attempts to identify DIIH-associated drugs based on a strict diagnostic and drug-causality algorithm, then stratify them into appropriate risks categories. This may ultimately assist physicians in counselling patients about the risk of DIIH when prescribing medications and recognizing this uncommon yet sight-threatening condition.
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Tagoe NN, Beyuo VM, Amissah-Arthur KN. Case series of six patients diagnosed and managed for idiopathic intracranial hypertension at a tertiary institution eye centre. Ghana Med J 2019; 53:79-87. [PMID: 31138948 PMCID: PMC6527823 DOI: 10.4314/gmj.v53i1.12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Idiopathic Intracranial Hypertension (IIH) occurs secondary to raised intracranial pressure (ICP) of unknown etiology and is diagnosed when all other causes of raised ICP have been excluded. It can leave devastating sequelae such as permanent visual loss, hence the need for timely diagnosis and treatment. Anecdotally, one or two cases of idiopathic intracranial hypertension (IIH) previously presented at the Eye Centre, KBTH yearly. However, six cases were seen within a 6-month period, prompting the need to study the clinical features of IIH in this population. Objective We aim to evaluate the clinical features of patients presenting with IIH at KBTH. Methodology This is a retrospective case series with contemporaneous collection of data of six patients who presented to the Eye Centre (KBTH) between October 2016 and March 2017 with clinical features suggestive of IIH. The patients were evaluated and diagnosed based on clinical judgement as well as using the modified Dandy criteria. Results All six patients were female and all except one were obese. The age range was 8 to 40 years with median 22.5 years. Symptoms in the 8-year-old were preceded by oral doxycycline for acne treatment. One patient had a history of using oral contraceptive pills prescribed for irregular menses. Clinical features of blurred vision, headache, and papilloedema were relieved with oral acetazolamide. Conclusion The upsurge of IIH may be due to the increased incidence of obesity in Ghana. Timely diagnosis and treatment is needed to avoid irreversible blindness. Funding None
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Affiliation(s)
- Naa N Tagoe
- Lions Eye Centre, Korle Bu Teaching Hospital Accra, Ghana
| | - Vera M Beyuo
- Department of Surgery, School of Medicine and Dentistry, College of Health Sciences, University of Ghana, Legon, Accra, Ghana
| | - Kwesi N Amissah-Arthur
- Department of Surgery, School of Medicine and Dentistry, College of Health Sciences, University of Ghana, Legon, Accra, Ghana
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Mangrolia P, Murphy RM. Retinol-Binding Protein Interferes with Transthyretin-Mediated β-Amyloid Aggregation Inhibition. Biochemistry 2018; 57:5029-5040. [PMID: 30024734 DOI: 10.1021/acs.biochem.8b00517] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
β-Amyloid (Aβ) aggregation is causally linked to Alzheimer's disease. On the basis of in vitro and transgenic animal studies, transthyretin (TTR) is hypothesized to provide neuroprotection against Aβ toxicity by binding to Aβ and inhibiting its aggregation. TTR is a homotetrameric protein that circulates in blood and cerebrospinal fluid; its normal physiological role is as a carrier for thyroxine and retinol-binding protein (RBP). RBP forms a complex with retinol, and the holoprotein (hRBP) binds with high affinity to TTR. In this study, the role of TTR ligands in TTR-mediated inhibition of Aβ aggregation was investigated. hRBP strongly reduced the ability of TTR to inhibit Aβ aggregation. The effect was not due to competition between Aβ and hRBP for binding to TTR, as Aβ bound equally well to TTR-hRBP complexes and TTR. hRBP is known to stabilize the TTR tetrameric structure. We show that Aβ partially destabilizes TTR and that hRBP counteracts this destabilization. Taken together, our results support a mechanism wherein TTR-mediated inhibition of Aβ aggregation requires not only TTR-Aβ binding but also destabilization of TTR quaternary structure.
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Affiliation(s)
- Parth Mangrolia
- Department of Chemical and Biological Engineering , University of Wisconsin-Madison , 1415 Engineering Drive , Madison , Wisconsin 53706 , United States
| | - Regina M Murphy
- Department of Chemical and Biological Engineering , University of Wisconsin-Madison , 1415 Engineering Drive , Madison , Wisconsin 53706 , United States
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Chisholm JT, Abou-Jaoude MM, Hessler AB, Sudhakar P. Pseudotumor Cerebri Syndrome with Resolution After Discontinuing High Vitamin A Containing Dietary Supplement: Case Report and Review. Neuroophthalmology 2018; 42:169-175. [PMID: 29796052 DOI: 10.1080/01658107.2017.1367931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 08/11/2017] [Accepted: 08/12/2017] [Indexed: 10/18/2022] Open
Abstract
A 24-year-old non-obese, but slightly overweight, female presented with a two-week history of progressive severe headache associated with two days of blurry vision. Clinical exam was significant for bilateral papilledema and an enlarged blind spot on visual field testing. Contrast enhanced MRI head revealed no space occupying lesion. A lumbar puncture revealed an elevated opening pressure of 38 cm H2O with normal cerebrospinal fluid composition leading to a diagnosis of pseudotumor cerebri syndrome (PTCS). The patient lacked the typical risk factors of high body mass index or obvious antecedent medications; however, on subsequent questioning, she was chronically ingesting a high vitamin A containing weight loss dietary supplement (Thrive W® - Table 1), which we believe had caused intracranial hypertension. Discontinuation of the diet pill and treatment with acetazolamide led to marked improvement of her PTCS. This case highlights the fact that non-traditional products or medications with high vitamin A may cause pseudotumor cerebri, which treating physicians should assess for while dealing with non-obese PTCS patients.
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Affiliation(s)
- Jason T Chisholm
- Department of Neurology, University of Kentucky, Lexington, Kentucky, USA
| | | | - Amy B Hessler
- Department of Neurology, University of Kentucky, Lexington, Kentucky, USA
| | - Padmaja Sudhakar
- Department of Neurology, University of Kentucky, Lexington, Kentucky, USA
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10
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Hoffmann J. Impaired cerebrospinal fluid pressure. HANDBOOK OF CLINICAL NEUROLOGY 2017; 146:171-185. [PMID: 29110769 DOI: 10.1016/b978-0-12-804279-3.00011-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Abnormalities of cerebrospinal fluid (CSF) pressure are relatively common and may lead to a variety of symptoms, with headache usually being the most prominent one. The clinical presentation of alterations in CSF pressure may vary significantly and show a striking similitude to several primary headache syndromes. While an increase in CSF pressure may be of primary or secondary origin, a pathologic decrease of CSF pressure is usually the result of a meningeal rupture with a resulting leakage of CSF. The pathophysiologic mechanisms of idiopathic intracranial hypertension (IIH) remain largely unknown. However recent evidence indicates that an abnormality in CSF outflow and absorption is likely to play a significant role. Treatment usually consists of a combination of weight loss and a pharmacologic approach using carbonic anhydrase inhibitors. Recent results of the first randomized, double-blind, placebo-controlled trial (RCT) with acetazolamide proved its efficacy in reducing headache and visual disturbances. Clinical evidence suggests efficacy for topiramate and furosemide but no RCT has been conducted to date to confirm these results. In contrast to IIH, spontaneous intracranial hypotension frequently remits spontaneously without specific treatment. If necessary, treatment options range from conservative methods to epidural blood or fibrin sealant patches and surgical interventions.
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Affiliation(s)
- Jan Hoffmann
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Uldall M, Bhatt DK, Kruuse C, Juhler M, Jansen-Olesen I, Jensen RH. Choroid plexus aquaporin 1 and intracranial pressure are increased in obese rats: towards an idiopathic intracranial hypertension model? Int J Obes (Lond) 2017; 41:1141-1147. [PMID: 28344346 DOI: 10.1038/ijo.2017.83] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 02/03/2017] [Accepted: 03/06/2017] [Indexed: 01/03/2023]
Abstract
BACKGROUND/OBJECTIVES Idiopathic intracranial hypertension (IIH) is a condition of increased intracranial pressure (ICP) without identifiable cause. The majority of IIH patients are obese, which suggests a connection between ICP and obesity. The aim of the study was to compare ICP in lean and obese rats. We also aimed to clarify if any ICP difference could be attributed to changes in some well-known ICP modulators; retinol and arterial partial pressure of CO2 (pCO2). Another potential explanation could be differences in water transport across the choroid plexus (CP) epithelia, and thus we furthermore investigated expression profiles of aquaporin 1 (AQP1) and Na/K ATPase. METHODS ICP was measured in obese and lean Zucker rats over a period of 28 days. Arterial pCO2 and serum retinol were measured in serum samples. The CPs were isolated, and target messenger RNA (mRNA) and protein were analyzed by quantitative PCR and western blot, respectively. RESULTS Obese rats had elevated ICP compared to lean controls on all recording days except day 0 (P<0.001). Serum retinol (P=0.35) and arterial pCO2 (P=0.16) did not differ between the two groups. Both AQP1 mRNA and protein levels were increased in the CP of the obese rats compared to lean rats (P=0.0422 and P=0.0281). There was no difference in Na/K ATPase mRNA or protein levels (P=0.2688 and P=0.1304). CONCLUSION Obese Zucker rats display intracranial hypertension and increased AQP1 expression in CP compared to lean controls. The mechanisms behind these changes are still unknown, but appear to be unrelated to altered pCO2 levels or retinol metabolism. This indicates that the increase in ICP might be related to increased AQP1 levels in CP. Although further studies are warranted, obese Zucker rats could potentially model some aspects of the IIH pathophysiology.
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Affiliation(s)
- M Uldall
- Department of Neurology, Danish Headache Center, Rigshospitalet Glostrup, University of Copenhagen, Glostrup, Denmark.,Glostrup Research Institute, Rigshospitalet Glostrup, University of Copenhagen, Glostrup, Denmark
| | - D K Bhatt
- Department of Neurology, Danish Headache Center, Rigshospitalet Glostrup, University of Copenhagen, Glostrup, Denmark.,Glostrup Research Institute, Rigshospitalet Glostrup, University of Copenhagen, Glostrup, Denmark
| | - C Kruuse
- Department of Neurology, Neurovascular Research Unit, Herlev Hospital, University of Copenhagen, Herlev, Denmark
| | - M Juhler
- Department of Neurosurgery, Rigshospitalet Blegdamsvej, University of Copenhagen, Copenhagen, Denmark
| | - I Jansen-Olesen
- Department of Neurology, Danish Headache Center, Rigshospitalet Glostrup, University of Copenhagen, Glostrup, Denmark.,Glostrup Research Institute, Rigshospitalet Glostrup, University of Copenhagen, Glostrup, Denmark
| | - R H Jensen
- Department of Neurology, Danish Headache Center, Rigshospitalet Glostrup, University of Copenhagen, Glostrup, Denmark
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12
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Aylward SC, Reem RE. Pediatric Intracranial Hypertension. Pediatr Neurol 2017; 66:32-43. [PMID: 27940011 DOI: 10.1016/j.pediatrneurol.2016.08.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 08/08/2016] [Accepted: 08/10/2016] [Indexed: 10/21/2022]
Abstract
Primary (idiopathic) intracranial hypertension has been considered to be a rare entity, but with no precise estimates of the pediatric incidence in the United States. There have been attempts to revise the criteria over the years and adapt the adult criteria for use in pediatrics. The clinical presentation varies with age, and symptoms tending to be less obvious in younger individuals. In the prepubertal population, incidentally discovered optic disc edema is relatively common. By far the most consistent symptom is headache; other symptoms include nausea, vomiting tinnitus, and diplopia. Treatment mainstays include weight loss when appropriate and acetazolamide. Furosemide may exhibit a synergistic benefit when used in conjunction with acetazolamide. Surgical interventions are required relatively infrequently, but include optic nerve sheath fenestration and cerebrospinal fluid shunting. Pain and permanent vision loss are the two major complications of this disorder and these manifestations justify aggressive treatment. Once intracranial hypertension has resolved, up to two thirds of patients develop a new or chronic headache type that is different from their initial presenting headache.
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Affiliation(s)
- Shawn C Aylward
- Department of Neurology, Nationwide Children's Hospital, Columbus, Ohio.
| | - Rachel E Reem
- Department of Ophthalmology, Nationwide Children's Hospital, Columbus, Ohio
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13
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Idiopathic Intracranial Hypertension Induced by Topical Application of Vitamin A. J Neuroophthalmol 2016; 36:412-413. [DOI: 10.1097/wno.0000000000000374] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Libien J, Kupersmith MJ, Blaner W, McDermott MP, Gao S, Liu Y, Corbett J, Wall M. Role of vitamin A metabolism in IIH: Results from the idiopathic intracranial hypertension treatment trial. J Neurol Sci 2016; 372:78-84. [PMID: 28017254 DOI: 10.1016/j.jns.2016.11.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 11/05/2016] [Accepted: 11/08/2016] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Vitamin A and its metabolites (called retinoids) have been thought to play a role in the development of idiopathic intracranial hypertension (IIH). The IIH Treatment Trial (IIHTT) showed the efficacy of acetazolamide (ACZ) in improving visual field function, papilledema grade, quality of life and cerebrospinal fluid (CSF) pressure. We postulated that IIH patients would demonstrate elevated measures of vitamin A metabolites in the serum and CSF. METHODS Comprehensive measures of serum vitamin A and its metabolites were obtained from 96 IIHTT subjects, randomly assigned to treatment with ACZ or placebo, and 25 controls with similar gender, age and body mass index (BMI). These included retinol, retinol binding protein, all-trans retinoic acid (ATRA), alpha- and beta-carotenes, and beta-cryptoxanthin. The IIHTT subjects also had CSF and serum vitamin A and metabolite measurements obtained at study entry and at six months. RESULTS At study entry, of the vitamin A metabolites only serum ATRA was significantly different in IIHTT subjects (median 4.33nM) and controls (median 5.04nM, p=0.02). The BMI of IIHTT subjects showed mild significant negative correlations with serum ATRA, alpha- and beta-carotene, and beta-cryptoxanthin. In contrast, the control subject BMI correlated only with serum ATRA. At six months, the serum retinol, alpha-carotene, beta-carotene, and CSF retinol were increased from baseline in the ACZ treated group, but only increases in alpha-carotene (p=0.02) and CSF ATRA (p=0.04) were significantly greater in the ACZ group compared with the placebo group. No other vitamin A measures were significantly altered over the six months in either treatment group. Weight loss correlated with only with the change in serum beta-carotene (r=-0.44, p=0.006) and the change in CSF retinol (r=-0.61, p=0.02). CONCLUSION Vitamin A toxicity is unlikely a contributory factor in the causation of IIH. Our findings differ from those of prior reports in part because of our use of more accurate quantitative methods and measuring vitamin A metabolites in both serum and CSF. ACZ may alter retinoid metabolism in IIH patients.
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Affiliation(s)
- J Libien
- Pathology, State University of New York, Downstate School of Medicine, Brooklyn, NY, United States
| | - M J Kupersmith
- Neurology and Ophthalmology, Mount Sinai West, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
| | - W Blaner
- Medicine, College of Physicians and Surgeons, Columbia University School of Medicine, New York, NY, United States
| | - M P McDermott
- Biostatistics, University of Rochester, Rochester, NY, United States
| | - S Gao
- Biostatistics, University of Rochester, Rochester, NY, United States
| | - Y Liu
- Pathology, State University of New York, Downstate School of Medicine, Brooklyn, NY, United States
| | - J Corbett
- Neurology, University of Mississippi School of Medicine, Jackson, MS, United States
| | - M Wall
- Neurology, University of Iowa School of Medicine, Iowa City, IA, United States
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Affiliation(s)
- Olga R. Thon
- Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, MA, USA
| | - John W. Gittinger
- Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, MA, USA
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Mollan SP, Ali F, Hassan-Smith G, Botfield H, Friedman DI, Sinclair AJ. Evolving evidence in adult idiopathic intracranial hypertension: pathophysiology and management. J Neurol Neurosurg Psychiatry 2016; 87:982-92. [PMID: 26888960 PMCID: PMC5013119 DOI: 10.1136/jnnp-2015-311302] [Citation(s) in RCA: 146] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Accepted: 01/19/2016] [Indexed: 01/12/2023]
Abstract
Idiopathic intracranial hypertension (IIH) is a rare but important disease associated with significant morbidity. There is an expected rise in prevalence in line with the escalating global burden of obesity. Modern revisions in the terminology and diagnostic criteria for IIH help guide clinicians in investigations and researchers in standardising recruitment criteria for clinical trials. The pathophysiology of IIH is incompletely characterised; suggested underpinning mechanisms include the role of cerebrospinal fluid regulation as well as metabolic and endocrinological perspectives. Recent treatment trials are providing insights into the management but debate still surrounds key areas in treatment. This review will provide an up-to-date discussion on the potential pathogenic mechanisms and management of IIH.
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Affiliation(s)
- Susan P Mollan
- Birmingham Neuro-Ophthalmology Unit, Ophthalmology Department, University Hospitals Birmingham NHS Trust, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Fizzah Ali
- Neurometabolism, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Ghaniah Hassan-Smith
- Neurometabolism, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK Neurology Department, University Hospitals Birmingham NHS Trust, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Hannah Botfield
- Neurometabolism, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Deborah I Friedman
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas, USA Department of Ophthalmology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Alexandra J Sinclair
- Neurometabolism, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK Neurology Department, University Hospitals Birmingham NHS Trust, Queen Elizabeth Hospital Birmingham, Birmingham, UK
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Doppler K, Schütt M, Sommer C. Decreased levels of aquaporin-4 in the cerebrospinal fluid of patients with idiopathic intracranial hypertension. Cephalalgia 2016; 36:1379-1384. [PMID: 26853804 DOI: 10.1177/0333102416630592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 12/28/2015] [Accepted: 01/01/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND Idiopathic intracranial hypertension is characterized by increased intracranial pressure. Its pathogenesis is largely unknown. Aquaporins may play a role in the homeostasis of cerebrospinal fluid. METHODS We aimed to elucidate the role of aquaporins in idiopathic intracranial hypertension by measuring the level of aquaporin-1 and aquaporin-4 in the cerebrospinal fluid and plasma of 28 patients and 29 controls by enzyme-linked immunosorbent assay. The adipokines leptin and retinol-binding protein 4 were also measured. RESULTS We found a reduction in aquaporin-4 in the cerebrospinal fluid of patients. Leptin levels were increased in the cerebrospinal fluid and plasma of patients and were correlated with weight, body mass index and body fat. There was no difference between patients and controls in the levels of aquaporin-1 and retinol-binding protein 4. CONCLUSION Our data suggest that an imbalance of aquaporin-4 in the cerebrospinal fluid of patients with idiopathic intracranial hypertension may contribute to the pathogenesis of this disorder.
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Affiliation(s)
- Kathrin Doppler
- Department of Neurology, University Hospital Würzburg, Würzburg, Germany
| | - Morten Schütt
- Department of Internal Medicine I, University Hospital Lübeck, Lübeck, Germany
| | - Claudia Sommer
- Department of Neurology, University Hospital Würzburg, Würzburg, Germany
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18
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Martins TGDS, Costa ALFDA, Oyamada MK, Schor P, Sipahi AM. Ophthalmologic manifestations of celiac disease. Int J Ophthalmol 2016; 9:159-62. [PMID: 26949627 DOI: 10.18240/ijo.2016.01.26] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 05/13/2015] [Indexed: 12/30/2022] Open
Abstract
Celiac disease is an autoimmune disorder that affects the small intestine of genetically predisposed individuals. Ophthalmic manifestations are within the extra-intestinal manifestations, and can be divided into those of autoimmune disorders or those due to absorptive disabilities. This article reviewed the ophthalmologic manifestation of celiac disease. Ophthalmic symptoms are rare, but should be investigated in patients with celiac disease and taken into consideration as the first systemic manifestation.
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Affiliation(s)
| | | | - Maria Kiyoko Oyamada
- Department of Ophthalmology, University of Sao Paulo, São Paulo 04023-062, Brazil
| | - Paulo Schor
- Department of Ophthalmology, Federal University of São Paulo, São Paulo 04023-062, Brazil
| | - Aytan Miranda Sipahi
- Department of Gastroenterology, Clínicas Hospital of University of São Paulo and the Laboratory of Experimental Clinical Gastroenterology, School of Medicine at the University of São Paulo LIM 07, São Paulo 04023-062, Brazil
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Coombs CC, DeAngelis LM, Feusner JH, Rowe JM, Tallman MS. Pseudotumor Cerebri in Acute Promyelocytic Leukemia Patients on Intergroup Protocol 0129: Clinical Description and Recommendations for New Diagnostic Criteria. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2015; 16:146-51. [PMID: 26724834 DOI: 10.1016/j.clml.2015.11.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 11/11/2015] [Accepted: 11/17/2015] [Indexed: 12/23/2022]
Abstract
BACKGROUND Multiple randomized trials have demonstrated a benefit for all-trans retinoic acid (ATRA) in patients with acute promyelocytic leukemia (APL). Pseudotumor cerebri (PTC) is an infrequently reported adverse effect of ATRA. METHODS We examined the incidence, clinical course, and outcomes of patients with APL treated on Intergroup Protocol 0129 (I0129) who developed PTC. This trial evaluated the role of ATRA alone during induction and/or as maintenance therapy. RESULTS Of the patients on trial, 240 received ATRA during induction, maintenance, or both; 8 had a clinical suspicion for PTC. Upon review of individual cases, this was felt to be "probable" in 4 patients, "possible" in 1 and "unlikely" in 3 due to lack of diagnostic criteria or presence of a more likely alternate diagnosis. CONCLUSIONS "Probable" PTC occurred in 1.7% of patients who received ATRA during induction and/or maintenance therapy. In agreement with previous reports, the incidence of PTC in APL patients receiving ATRA was higher in the pediatric population. Here, we discuss the method for diagnosing PTC in the setting of ATRA therapy and management strategies.
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Affiliation(s)
- Catherine C Coombs
- Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Lisa M DeAngelis
- Department of Neurology, Weill Cornell Medical College, New York, NY; Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - James H Feusner
- Department of Pediatric Hematology/Oncology, Children's Hospital and Research Center Oakland, Oakland, CA
| | - Jacob M Rowe
- Department of Hematology, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Martin S Tallman
- Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY; Department of Medicine, Weill Cornell Medical College, New York, NY.
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Piper RJ, Kalyvas AV, Young AMH, Hughes MA, Jamjoom AAB, Fouyas IP. Interventions for idiopathic intracranial hypertension. Cochrane Database Syst Rev 2015; 2015:CD003434. [PMID: 26250102 PMCID: PMC7173709 DOI: 10.1002/14651858.cd003434.pub3] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Idiopathic intracranial hypertension (IIH) has an estimated incidence of one to three people per 100,000 people per year, and occurs most commonly in obese, young women. IIH is associated with severe morbidity, notably due to a significant threat to sight and severe headache. Several different management options have been proposed. Conservative measures centre on weight loss. Pharmacological therapy includes use of diuretics. Refractory and sight-threatening cases demand surgical intervention, most often in the form of cerebrospinal fluid (CSF) diversion or optic nerve sheath fenestration. Other treatments include venous sinus stenting and bariatric surgery. OBJECTIVES To assess the effects of any intervention for IIH in any patient group. SEARCH METHODS We searched CENTRAL (which contains the Cochrane Eyes and Vision Group Trials Register) (2015 Issue 6), Ovid MEDLINE, Ovid MEDLINE In-Process and Other Non-Indexed Citations, Ovid MEDLINE Daily, Ovid OLDMEDLINE (January 1946 to July 2015), EMBASE (January 1980 to July 2015), the ISRCTN registry (www.isrctn.com/editAdvancedSearch), ClinicalTrials.gov (www.clinicaltrials.gov) and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP) (www.who.int/ictrp/search/en). We did not use any date or language restrictions in the electronic searches for trials. We last searched the electronic databases on 22 July 2015. SELECTION CRITERIA We included only randomised controlled trials (RCTs) in which any intervention was compared to placebo, or to another form of treatment, for people with a clinical diagnosis of IIH. DATA COLLECTION AND ANALYSIS Two review authors independently assessed the search results for trials to be included in the review. We resolved any discrepancies by third party decision. MAIN RESULTS We identified two completed RCTs (enrolling a total of 211 participants and conducted in the UK and US) and two ongoing trials that met the inclusion criteria. Both completed trials compared acetazolamide to placebo, in conjunction with a weight loss intervention in both groups. Attrition bias was a problem in both trials with high loss to follow-up, in one study this loss to follow-up occurred particularly in the acetazolamide arm. One trial was unmasked and we judged it to be at risk of performance and detection bias.In these studies, change in visual acuity was similar in the treatment and control groups as measured by logMAR acuity. In one study people in the acetalomazide group had a similar change in logMAR acuity compared to the placebo group between baseline and 12 months in the right eye (MD 0.04 logMAR, 95% CI -0.08 to 0.16) and left eye (MD 0.03 logMAR, 95% CI -0.09 to 0.15). In the other study people in the acetalomazide group had a similar change in vision over six months compared with people in the placebo group (mean difference in change in letters read was 0.01 (95% CI -1.45 to 1.46). One study reported no cases of visual loss in 21 people treated with acetalomazide compared to 2/20 cases in the placebo group (odds ratio 0.17, 95% CI 0.01, 3.82).The prespecified outcome for this review was reduction in CSF pressure to normal levels which was not reported by the two trials. One trial reported that, in a subsample of 85 participants who agreed to lumbar puncture at 6 months, people in the acetalomazide group on average had a greater reduction in CSF pressure (MD -59.9 mmH(2)O, 95% CI -96.4, -23.4).In one study, people in the acetalozamide group on average experienced a greater reduction in papilloedema as assessed by fundus photographs MD -0.70 (95% CI -1.00 to -0.40) and by clinical grading MD -0.91 (95% CI -1.27 to -0.54) between baseline and six months in the study eye.Headache was recorded as present/absent in one study at 12 months (OR 0.42, 95% CI 0.12,1.41, 41 participants). Both studies reported headache on visual analogue scales (different ones) but results were inconclusive (MD for change in headache score measured on 10-point visual analogue scale at 12 months was 1.0 (-1.80, 3.70, 41 participants) and MD for change in headache score on a 6 point scale measured at 6 months was -0.45 (-3.5,2.6, number of participants unclear).In one study, a similar proportion of people in the acetalomazide group were in remission (however, the trial authors did not state their definition of this term) at 12 months compared to the placebo group. However, the 95% CIs were wide and there is considerable uncertainty as to the effect (OR 1.13 (95% CI 0.32 to 3.90, 41 participants).In one study of 185 participants, people in the acetalomazide group had an increased risk of decreased CO2, diarrhoea, dysgeusia, fatigue, nausea, paresthesia, tinnitus and vomiting compared to people in the placebo group. In general, the estimates of effect were uncertain with wide 95% CIs. Adverse effects were not reported in the other study.One study reported that quality of life was better in acetazolamide-treated patients based on the visual quality of life (VFQ-25) (MD 6.35, 95% CI 2.22 to 10.47) and the physical (MD 3.02, 95% CI 0.34 to 5.70) and mental (MD 3.45, 95% CI 0.35 to 6.55) components of the 36-Item Short Form Health Survey tool at six months. Costs were not reported in either study.We judged the evidence to be low certainty (GRADE) downgrading for imprecision and risk of bias. AUTHORS' CONCLUSIONS Although the two included RCTs showed modest benefits for acetazolamide for some outcomes, there is insufficient evidence to recommend or reject the efficacy of this intervention, or any other treatments currently available, for treating people with IIH. Further high-quality RCTs are required in order to adequately assess the effect of acetazolamide therapy in people with IIH.
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Affiliation(s)
| | | | - Adam MH Young
- University of GlasgowGlasgowUK
- Southern General HospitalInstitute of Neurological ScienceGlasgowUK
| | - Mark A Hughes
- University of EdinburghEdinburghUK
- Western General HospitalDepartment of Clinical NeurosciencesEdinburghUK
| | - Aimun AB Jamjoom
- Western General HospitalDepartment of Clinical NeurosciencesEdinburghUK
| | - Ioannis P Fouyas
- Western General HospitalDepartment of Clinical NeurosciencesEdinburghUK
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Aispuru G, Pascual-Pablo E. Hipertensión intracraneal idiopática asociada a exceso dietario de vitamina A. Semergen 2015; 41:e24-6. [DOI: 10.1016/j.semerg.2014.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 05/27/2014] [Accepted: 05/31/2014] [Indexed: 10/25/2022]
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The idiopathic intracranial hypertension treatment trial: design considerations and methods. J Neuroophthalmol 2014; 34:107-17. [PMID: 24739993 DOI: 10.1097/wno.0000000000000114] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The objectives of this study were to present the rationale for the main aspects of the study design and describe the trial methodology for the Idiopathic Intracranial Hypertension Treatment Trial (IIHTT). METHODS Eligible candidates with mild visual field loss (automated perimetric mean deviation [PMD] -2 to -7 dB) were randomized to receive either acetazolamide or matching placebo tablets. Randomized participants were offered participation in a supervised dietary program. The primary outcome variable, PMD, was measured at 6 months. Additionally, cerebrospinal fluid from subjects and serum from study participants and matched controls were collected for genetic analysis and vitamin A studies. An ancillary optical coherence substudy was added to investigate the changes of papilledema in the optic nerve head and retina that correlate with Frisén grading, visual field deficits, and low-contrast visual acuity. RESULTS The randomized trial entered 165 participants from March 17, 2010, through November 27, 2012, from the United States and Canada. The primary outcome (month 6) visits were successfully completed by June 15, 2013. Blood specimens were obtained from 165 controls without IIH to investigate vitamin A metabolism and genetic markers of potential risk factors for IIH. CONCLUSIONS The IIHTT is the first randomized, double-masked placebo-controlled trial to study the effectiveness of medical treatment for patients with IIH.
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Anoop TM, Jain N, Nair SG, Narayanan G. All-trans-retinoic acid-induced pseudotumor cerebri in acute promyelocytic leukemia. J Neurosci Rural Pract 2014; 5:273-5. [PMID: 25002770 PMCID: PMC4078615 DOI: 10.4103/0976-3147.133595] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
All-trans-retinoic acid is an integral part in the treatment strategy of acute promyelocytic leukemia (APL). Here we describe a case of pseudotumor cerebri associated with all-trans-retinoic acid (ATRA) during the induction therapy in an adult with acute promyelocytic leukemia (APL).
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Affiliation(s)
- T M Anoop
- Department of Medical Oncology, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - Nidhi Jain
- Department of Medical Oncology, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - Sreejith G Nair
- Department of Medical Oncology, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - Geetha Narayanan
- Department of Medical Oncology, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
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Abstract
Background Idiopathic intracranial hypertension or pseudotumour cerebri is primarily a disorder of young obese women characterised by symptoms and signs associated with raised intracranial pressure in the absence of a space-occupying lesion or other identifiable cause. Summary The overall incidence of idiopathic intracranial hypertension is approximately two per 100,000, but is considerably higher among obese individuals and, given the global obesity epidemic, is likely to rise further. The pathophysiology of this condition is poorly understood, but most theories focus on the presence of intracranial venous hypertension and/or increased cerebrospinal fluid outflow resistance and how this relates to obesity. A lack of randomised clinical trials has resulted in unsatisfactory treatment guidelines and although weight loss is important, especially when used in conjunction with drugs that reduce cerebrospinal fluid production, resistant cases remain difficult to manage and patients invariably undergo neurosurgical shunting procedures. The use of transverse cerebral sinus stenting remains contentious and long-term benefits are yet to be determined. Conclusion An understanding of the clinical features, diagnostic work-up and therapeutic options available for patients with idiopathic intracranial hypertension is important both for neurologists and ophthalmologists as visual loss maybe permanent if untreated.
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Affiliation(s)
- BR Wakerley
- The Oxford Headache Centre, Department of Neurology, John Radcliffe Hospital, UK
| | - MH Tan
- Department of Ophthalmology, Royal Perth Hospital, Australia
| | - EY Ting
- Diagnostic Imaging, National University Hospital, Singapore
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McGeeney BE, Friedman DI. Pseudotumor Cerebri Pathophysiology. Headache 2014; 54:445-58. [DOI: 10.1111/head.12291] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2013] [Indexed: 12/12/2022]
Affiliation(s)
| | - Deborah I. Friedman
- Neurology & Neurotherapeutics and Ophthalmology; University of Texas Southwestern Medical Center; Dallas TX USA
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Dotan G, Goldstein M, Stolovitch C, Kesler A. Pediatric Pseudotumor Cerebri Associated With Low Serum Levels of Vitamin A. J Child Neurol 2013; 28:1370-1377. [PMID: 23364653 DOI: 10.1177/0883073812474344] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The aim of this study was to describe the association between pediatric pseudotumor cerebri and low serum vitamin A levels. We retrospectively reviewed the charts of 6 children (5 boys, 1 girl; mean age 8 years) with increased intracranial pressure and low serum vitamin A levels (mean 16.0 ± 8.8 µg/dL). The etiology of the vitamin A deficiency was a restricted diet (2 children), intestinal malabsorption caused by celiac disease (2 children), and undetermined cause (2 children). Only 1 child had ocular signs of xerosis. Poor visual acuity at presentation and lower serum vitamin A levels were associated with a poor visual outcome and development of optic atrophy. In conclusion, pseudotumor cerebri in children can be associated with vitamin A deficiency even when other manifestations of xerophthalmia do not exist. Early recognition of this condition and appropriate therapy can prevent blindness.
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Affiliation(s)
- Gad Dotan
- 1Department of Ophthalmology, Sourasky Tel Aviv Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
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Stiebel-Kalish H, Eyal S, Steiner I. The role of aquaporin-1 in idiopathic and drug-induced intracranial hypertension. Med Hypotheses 2013; 81:1059-62. [PMID: 24169407 DOI: 10.1016/j.mehy.2013.10.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 09/27/2013] [Accepted: 10/04/2013] [Indexed: 10/26/2022]
Abstract
Idiopathic intracranial hypertension is a common disorder affecting mainly healthy, young, overweight women. The pathogenesis of this condition is unknown, but it has been shown to follow treatment with several compounds including corticosteroids and vitamin A derivatives. This paper will offer a novel hypothesis and insight on the pathogenesis of drug induced intracranial hypertension following a review and analysis of the literature. Both corticosteroids and vitamin A derivatives have been shown to upregulate the expression of aquaporin 1, a water channel protein. Aquaporin 1 is widely distributed in the human brain and is associated with water secretion into the subarachnoid space. Aquaporin 1 was also shown to participate in the regulation of weight. Agents used for treating idiopathic intracranial hypertension reduce aquaporin 1 expression. Based on these observations, we propose that aquaporin 1 has a pathogenetic role in drug induced idiopathic intracranial hypertension. Over expression of this gene causes increased intracranial pressure, and downregulation reduces pressure and alleviates the symptomatology and complications of idiopathic intracranial hypertension.
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Affiliation(s)
- H Stiebel-Kalish
- Department of Ophthalmology, Neuro-Ophthalmology Unit, Rabin Medical Center, Petach Tikva 49100, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel.
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Galgano MA, Deshaies EM. An update on the management of pseudotumor cerebri. Clin Neurol Neurosurg 2013; 115:252-9. [DOI: 10.1016/j.clineuro.2012.11.018] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 10/19/2012] [Accepted: 11/25/2012] [Indexed: 11/28/2022]
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Abstract
Although PTC most frequently occurs in obese females of childbearing age, the syndrome occurs in children as well.(3),(5) Prepubertal children with PTC have a lower incidence of obesity compared with adults and there is no sex predilection. The onset of puberty is best defined by the onset of secondary sexual characteristics such has menarche, pubic hair, and breast development. Children with PTC have a higher incidence of associated conditions and cranial nerve deficits compared with adults. Similar to adult patients, children are at risk for the development of permanent visual loss. In rare instances, children initially diagnosed with PTC will be found to harbor an intracranial neoplasm such as gliomatosis cerebri. An intracranial pressure of 28 cm H2O has recently been established as the upper limit of normal in children.31 Treatment is indicated for the symptomatic management of headaches and to preserve vision. Most children respond to medications such as acetazolamide, furosemide, or topiramate. Surgical treatment such as ONSF and shunting procedures are indicated for children with severe headaches, visual loss, or both despite maximal tolerated medical treatment.
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Affiliation(s)
- Paul H Phillips
- Arkansas Children's Hospital, 1 Children’s Way – Slot 111, Little Rock, AR 72201, USA
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Maillart E, Gueguen A, Obadia M, Moulignier A, Vignal-Clermont C, Gout O. Hypertension intracrânienne et lupus. Rev Neurol (Paris) 2011; 167:505-10. [DOI: 10.1016/j.neurol.2010.10.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 03/19/2010] [Accepted: 10/15/2010] [Indexed: 11/24/2022]
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Abstract
Idiopathic intracranial hypertension (IIH) is a disease of unknown etiology associated with increased intracranial pressure, predominantly affecting obese females of childbearing age. The history of IIH is quite unique, featuring only limited advancements in evidenced-based treatments, but boasting literally countless changes in nomenclature, proposed etiology, and conceptual approach. Despite its elusive pathogenesis, an evolution of our approach to IIH can be traced sequentially through identifiable periods. Contemporary research suggests that we are approaching a new phase in IIH, redefining it as a global neurologic syndrome with more far-reaching effects than previously realized.
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Affiliation(s)
- Kapil G Kapoor
- Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch at Galveston, 301 University Boulevard, Galveston, TX 77550, USA.
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Mouzaki M, Nichter C, Qureshi M, Rountree B, Furuya KN. Idiopathic intracranial hypertension in two patients with Alagille syndrome. J Child Neurol 2010; 25:1006-8. [PMID: 20501886 DOI: 10.1177/0883073809351985] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Alagille syndrome is an autosomal dominant condition with incomplete penetrance that is associated mostly with hepatic, cardiac, and skeletal abnormalities. In addition, the association of Alagille syndrome with ocular abnormalities is well known and is considered one of the characteristic features of this condition. Most commonly, posterior embryotoxon, glaucoma, or retinopathy has been identified in these children. The authors present 2 patients with Alagille syndrome who, before the age of 3 years old, developed idiopathic intracranial hypertension with documented increased intracranial pressure by lumbar puncture and papilledema, which was responsive to acetazolamide.
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Affiliation(s)
- Marialena Mouzaki
- Department of Pediatrics, Penn State Children's Hospital, Penn State University, Hershey, PA, USA
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Liu GT, Volpe NJ, Galetta SL. Optic disc swelling. Neuroophthalmology 2010. [DOI: 10.1016/b978-1-4160-2311-1.00006-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Abstract
Pseudotumor cerebri (PTC) is characterized by intracranial hypertension without ventriculomegaly, in the absence of a mass lesion or meningeal process. When there is no secondary cause, it is termed 'idiopathic intracranial hypertension'. Headache is the most common symptom of PTC, present in over 90% of patients. The headache is often disabling and nonspecific in character; thus, ophthalmoscopy is imperative for all patients being evaluated for headache. Visual loss is the major morbidity of PTC, requiring prompt diagnosis and treatment to prevent permanent deficits. Medical and surgical treatments are employed, although evidence-based treatment guidelines do not exist. This review discusses the diagnosis, differential diagnosis and management strategies for patients with PTC.
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Affiliation(s)
- Deborah I Friedman
- University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Box 659, Rochester, NY 14642, USA.
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Abstract
Our understanding of pediatric idiopathic intracranial hypertension has been refined since Dr. Simmons Lessell's review in 1992. The use of rigorous methodologies and standard definitions in recent studies has demonstrated distinct demographic trends. Specifically, the incidence of idiopathic intracranial hypertension seems to be increasing among adolescent children, and among older children its clinical picture is similar to that of adult idiopathic intracranial hypertension (female and obese). Within younger age groups there are more boys and nonobese children who may develop idiopathic intracranial hypertension. The pathogenesis of the disease has yet to be elucidated. Idiopathic intracranial hypertension among young children has been associated with several new etiologies, including recombinant growth hormone and all-trans-retinoic acid. More modern neuroimaging techniques such as MRI and MRI-venograms are being used to exclude intracranial processes. Although most cases of pediatric idiopathic intracranial hypertension improve with medical treatment, those who have had visual progression despite medical treatment have undergone optic nerve sheath fenestration and lumboperitoneal shunting. Because idiopathic intracranial hypertension in young children appears to be a different disorder than in adolescents and adults, separate diagnostic criteria for younger children are warranted. We propose new criteria for pediatric idiopathic intracranial hypertension in which children should have signs or symptoms consistent with elevated intracranial pressure, be prepubertal, have normal sensorium, can have reversible cranial nerve palsies, and have an opening cerebrospinal fluid pressure greater than 180 mm H(2)O if less than age 8 and papilledema is present, but greater than 250 mm H(2)0 if age 8 or above or less than 8 without papilledema.
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Affiliation(s)
- Lubaina M Rangwala
- Neuro-ophthalmology Services of the Children's Hospital of Philadelphia, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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Retinol and Retinol-Binding Protein in Cerebrospinal Fluid: Can Vitamin A Take the “Idiopathic” Out of Idiopathic Intracranial Hypertension? J Neuroophthalmol 2007; 27:253-7. [DOI: 10.1097/wno.0b013e31815c44bc] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Retinol-Binding Protein and Retinol Analysis in Cerebrospinal Fluid and Serum of Patients With and Without Idiopathic Intracranial Hypertension. J Neuroophthalmol 2007; 27:258-62. [DOI: 10.1097/wno.0b013e31815b9af0] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Takitani K, Koh M, Inoue A, Kawakami C, Kuno T, Tamai H. Pharmacokinetics of all-trans retinoic acid in adults and children with acute promyelocytic leukemia. Am J Hematol 2006; 81:720-1. [PMID: 16838336 DOI: 10.1002/ajh.20717] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Forterre S, Raila J, Forterre F, Brunnberg L, Schweigert FJ. Characterisation of transthyretin and retinol-binding protein in plasma and cerebrospinal fluid of dogs. Vet J 2006; 171:451-5. [PMID: 16624711 DOI: 10.1016/j.tvjl.2004.11.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/26/2004] [Indexed: 11/29/2022]
Abstract
The aim of this study was to investigate differences in concentrations of vitamin A, transthyretin (TTR) and retinol-binding protein (RBP) between plasma and cerebrospinal fluid (CSF) in dogs. RBP was detected using ELISA, and both RBP and TTR by Western blot analysis after separation on SDS-PAGE. Vitamin A was determined by high performance liquid chromatography. RBP and TTR as well as vitamin A were detected in all samples but at substantially lower concentrations in CSF compared to plasma. RBP in dog plasma showed a similar molecular mass to that of humans, whereas canine TTR had a lower molecular mass. Comparison between plasma and CSF showed that both RBP and TTR were of lower molecular mass in CSF. In CSF, RBP and retinol were present at 10-100-fold lower concentrations compared to plasma. Retinyl esters were present only in minute amounts in 5/17 samples. In conclusion, the CSF of dogs compared to humans is significantly different in terms of both quality and quantity of transport proteins for vitamin A.
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Affiliation(s)
- Simone Forterre
- Institute of Nutritional Science, University of Potsdam, Arthur-Scheunert-Allee 114-116, D-14558 Potsdam-Rehbrücke, Germany.
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Abstract
Idiopathic intracranial hypertension is common in obese women and can lead to significant visual impairment. First described more than 100 years ago, the cause of the disorder remains unknown. Despite a multitude of proposed links, the aetiology has never been established. Impairment of cerebrospinal-fluid reabsorption is the most likely underlying pathophysiological cause of the raised pressure, but this notion has yet to be proven. Cerebral venous sinus abnormalities associated with the disorder need further exploration. Although the major symptoms of headache and visual disturbance are well documented, most data for disease outcome have been from small retrospective case series. No randomised controlled trials of treatment have been done and the management is controversial. The importance of weight loss needs clarification, the role of diuretics is uncertain, and which surgical intervention is the most effective and safe is unknown. Prospective trials to examine these issues are urgently needed.
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Affiliation(s)
- Alex K Ball
- University of Birmingham, Department of Neurology, City Hospital, Birmingham B18 7QH, UK
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Abstract
OBJECTIVE To evaluate the nature and course of idiopathic intracranial hypertension (IIH) in Dubai, UAE. METHODS In a retrospective study the medical records of 50 patients with IIH were reviewed. All of them were diagnosed according to the Modified Dandy Criteria. RESULTS There were 46 (92%) women. Mean age at presentation was 35.7 years. Obesity was the commonest associated factor (32%). Headache was reported in 98% followed by double vision (32%). Papilledema was present in all patients at the time of examination (100%). Perimetric study showed mild peripheral visual field constriction in 56%. Only two patients showed severe field constriction and one of them deteriorated rapidly and she became blind. The mean cerebrospinal fluid pressure was 302.5 mmH(2)O. The visual status improved significantly throughout the follow-up period. CONCLUSIONS Idiopathic intracranial hypertension has relatively benign course in this part of the world and more aggressive treatment is not recommended.
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Affiliation(s)
- M Mezaal
- Department of Neurology, Rashid Hospital, Dubai, UAE.
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Abstract
Pseudotumor cerebri (PTC) is a syndrome of intracranial hypertension that is idiopathic or from an identified secondary cause. It is characterized by headaches and visual manifestations. The hallmark of PTC is papilledema and the feared consequence is visual loss that may be severe and permanent. The idiopathic form generally occurs in obese women of childbearing age. Various medications may produce PTC in patients at any age, including children. Several medications used in dermatology, particularly those used in the treatment of acne vulgaris, are associated with PTC. There is a strong association with tetracycline usage. Minocycline and doxycycline have also been linked to PTC, although there are relatively few reported cases. PTC has also been described with retinoids, including vitamin A (retinol) and isotretinoin. Although corticosteroids are often used to lower intracranial pressure acutely, corticosteroid withdrawal after long-term administration may induce increased intracranial pressure. A high index of suspicion, early diagnosis and treatment generally yield a good prognosis.
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Affiliation(s)
- Deborah I Friedman
- Departments of Ophthalmology and Neurology, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA.
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Abstract
Pseudotumor cerebri (PTC) is a syndrome of increased intracranial pressure without hydrocephalus or mass lesion and with normal cerebrospinal fluid (CSF) composition. Although often considered to be "idiopathic," detailed investigation has revealed a high incidence of venous outflow abnormalities in PTC syndrome patients. The thought that elevated intracranial venous sinus pressure is a "universal mechanism" for PTC syndrome of varying etiologies has been called into question by a study indicating that the increased venous pressure in idiopathic PTC patients is caused by the elevated intracranial pressure and not the reverse, suggesting that "the chicken is the CSF pressure elevation and the egg is the venous sinus pressure elevation." Vitamin A toxicity may play a role in the pathogenesis of idiopathic PTC. The treatment of PTC has two major goals: the alleviation of symptoms and preservation of visual function. When medical therapy fails or when visual dysfunction deteriorates, surgical therapies for PTC should be considered. The two main procedures performed include lumboperitoneal shunt and optic nerve sheath fenestration. Because of the association of PTC with venous sinus hypertension, some authors are considering venous sinus stenting for refractory cases of PTC. It is still unclear if primary treatment of the observed venous stenosis benefits patients with idiopathic PTC. This should be no surprise, as it is not certain whether the stenoses are the cause or the result of idiopathic PTC.
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Affiliation(s)
- Paul W Brazis
- Department of Neurology, Mayo Clinic-Jacksonville, 4500 San Pablo Road, Jacksonville, FL 32224, USA.
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Tallman MS, Rowe JM. Long-term follow-up and potential for cure in acute promyelocytic leukaemia. Best Pract Res Clin Haematol 2003; 16:535-43. [PMID: 12935968 DOI: 10.1016/s1521-6926(03)00058-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Acute promyelocytic leukaemia (APL) may be characterized simultaneously as the most potentially rapidly fatal human acute leukaemia if untreated, yet the most frequently cured acute leukaemia if promptly diagnosed and treated without delay. Co-operative group and single-institution studies which include large numbers of patients with relatively long follow-up demonstrate that, with all-trans retinoic acid (ATRA) plus anthracycline-based chemotherapy, the majority of newly-diagnosed patients appear cured of their disease. The 5-year disease-free survival rates range from 75 to 85%. Early death is still observed in approximately 10% of patients and remains a difficult obstacle to increasing the cure rate. Prognostic factors which identify patients at high risk for recurrence are becoming increasingly recognized. Older age (over age 55-60 years), elevated white blood cell count at presentation (higher than 5,000-10,000/microl), and expression of CD56 unfavourably influence outcome. The treatment of such patients remains a challenge, although it is important to note that APL is the only type of AML in which a significant proportion of older patients may be cured. Because more patients are cured of their disease, potential long-term consequences may become increasingly recognized. These include the emergence of extramedullary disease, the development of secondary myelodysplasia or acute myeloid leukaemia and the potential for late-onset cardiac toxicity.
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Affiliation(s)
- Martin S Tallman
- Division of Hematology/Oncology, School of Medicine, Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg, 676 N. St Clair, Suite 850, Chicago, IL 60611, USA.
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Millichap JG. Vitamin A and Idiopathic Intracranial Hypertension. Pediatr Neurol Briefs 2002. [DOI: 10.15844/pedneurbriefs-16-11-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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