Presentation
GLUT1-deficient cryohydrocytosis may present with haemolytic anaemia, pseudohyperkalaemia and neuro-pathology. [endocrine-abstracts.org]
Presents an all-new full-color design that includes clear illustrative examples of relevant science and clinical problems for quick access to the answers you need. [books.google.de]
In OHS, de novo mutations are common but, once present, the mutations are dominantly transmitted. [yumpu.com]
Hereditary cryohydrocytosis, type 2 (CHC 2) presents similar to OHS, except that the leak dramatically increases close to 0 degrees C. In addition, hematological manifestations are associated with neurological disorders. [ncbi.nlm.nih.gov]
Stomatocytic haemolysis and macrothrombocytopenia (Mediterranean stomatocytosis/macrothrombocytopenia) is the haematological presentation of phytosterolaemia. Br J Haematol. 2005 Jul;130(2):297-309. [impact.ref.ac.uk]
Immune System
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Splenomegaly
Continuing hyperbilirubinaemia and occasional splenomegaly lead to a suspicion of a ‘leaky erythrocytes’. [endocrine-abstracts.org]
Gall stones and splenomegaly 6. [ihaematology.com]
(one in...) northern euros incidence 1 in 5000 Symptoms of Sphero J S ________of varying degrees Jaundice splenomegaly Anemia of varying degrees Sphero Hemolytic crisis usually not __________ Children after ______ infection Usually not severe children [quizlet.com]
Dehydrated hereditary stomatocytosis has been mapped to 16q23-qter.46 CLINICAL FEATURES Patients may present with compensated hemolytic anemia, jaundice, splenomegaly, and gallstones. [medtextfree.wordpress.com]
Splenomegaly and cholelithiasis with bilirubin gallstones are common. Signs and symptoms date from birth, though they may be overlooked for years, or even decades in the milder variants. [cancertherapyadvisor.com]
Entire Body System
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Anemia
An increase of the leak underlies the hereditary stomatocytoses, a group of rare hemolytic anemias, and familial pseudohyperkalemia (FP). [yumpu.com]
Hemolytic anemia is improved by splenectomy. [medtextfree.wordpress.com]
[…] dominant fashion, macrocytic hemolytic anemias and hemolytic anemias with similar red cell morphology. [cancertherapyadvisor.com]
[…] develop a hemolytic anemia with acanthocytosis called spur cell anemia. [doctorlib.info]
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Sepsis
The patient presented aged 1 day with jaundice and hypoglycaemia, and was treated for presumed sepsis. Plasma K -concentration was reported to be 8 mmol/l. [endocrine-abstracts.org]
Splenectomy § No evidence that laparoscopic is superior to open Indications a) S evere disease should try and defer until age 6 as risk of sepsis if possible (pa r tial splenectomy can be performed in those b) Moderate disease considered (reduced exercise [ihaematology.com]
Splenectomy is beneficial in severe cases, and after this procedure the hemoglobin level usually increases enough to reduce or eliminate the need for transfusion. 73 Splenectomy, however, results in a lifelong increased risk of sepsis by encapsulated [doctorlib.info]
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Falling
Thus, the general group of dominantly inherited conditions with which we are concerned here fall under the general title hereditary stomatocytoses and allied disorders.' [the-medical-dictionary.com]
Stewart identified that a crucial feature in diagnosis is the dependence of the increased sodium-potassium permeability as temperature falls. [impact.ref.ac.uk]
Others There are other families that do not fall neatly into any of these classifications. That described by Oski is one such (Oski et al, 1969). Also, Jarvis et al 2001. [ucl.ac.uk]
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Fatigue
Detailed history with regards to differential diagnosis of fatigue, weight loss, fever, headache, dizziness, and malaise 3. [docplayer.net]
The key signs and symptoms are those of all hemolytic anemias: jaundice, pallor, fatigue, splenomegaly, gallbladder disease, and susceptibility to an aplastic crisis following infection with parvovirus B19. [cancertherapyadvisor.com]
[…] splenic, renal veins Portal hypertension Cerebral vein thrombosis Retinal vein thrombosis and loss of vision Deep vein thrombosis, pulmonary emboli Arterial thrombosis (less common) Stroke Myocardial infarction Related to bone marrow failure Pancytopenia: fatigue [doctorlib.info]
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Movement Disorder
This causes the characteristic neurological symptoms (seizures, mental retardation, and movement disorders). The hemolysis and cataracts appear to be due to the altered cation permeability of the mutant channel. [cancertherapyadvisor.com]
disorders), peripheral neuropathy, myopathy, and neuropsychiatric manifestations. 46, 47 Some female heterozygote carriers may have acanthocytes, but neurologic symptoms are rare. [doctorlib.info]
Liver, Gall & Pancreas
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Jaundice
The patient presented aged 1 day with jaundice and hypoglycaemia, and was treated for presumed sepsis. Plasma K -concentration was reported to be 8 mmol/l. [endocrine-abstracts.org]
Neonatal jaundice and anaemia § May need transfusions for the first year of life (can then become transfusion independent since erythropoietic drive poor during first year of life). § Epo may be of benefit 2. [ihaematology.com]
Positive family history A careful family history should be taken, looking for anemia, splenectomy, jaundice, early gallbladder disease, transfusion, neonatal jaundice or edema, hyperkalemia, iron overload, iron chelation therapy, or thromboembolic disease [cancertherapyadvisor.com]
(one in...) northern euros incidence 1 in 5000 Symptoms of Sphero J S ________of varying degrees Jaundice splenomegaly Anemia of varying degrees Sphero Hemolytic crisis usually not __________ Children after ______ infection Usually not severe children [quizlet.com]
There was no jaundice or anaemia. [the-medical-dictionary.com]
Psychiatrical
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Suggestibility
Investigation suggested normokalaemia when samples were assayed immediately and therefore ‘pseudo-hyperkalaemia’. Continuing hyperbilirubinaemia and occasional splenomegaly lead to a suspicion of a ‘leaky erythrocytes’. [endocrine-abstracts.org]
Hemoglobin and hematocrit values are often normal, despite evidence for mild to moderate hemolysis, suggesting that patients are physiologically more anemic than the numbers suggest. [cancertherapyadvisor.com]
Biological context of STOM There is also evidence that stomatin is linked to the cortical actin cytoskeleton, suggesting a role in cortical morphogenesis of the cell [8]. [wikigenes.org]
It has been suggested that vitamin E deficiency is the primary stimulus for secondary manifestations of the disease such as neuropathy. [medtextfree.wordpress.com]
Studies showed that this net K loss from the red cell did not occur at 37degC, and a simple temperature effect was suggested. The presence of this effect in three other unrelated families studied recently by us is illustrated in Figure 1. [the-medical-dictionary.com]
Neurologic
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Seizure
We describe a child with a stomatocytosis due to a SLC2A1 mutation presenting with hyperkalaemia, liver disease, microcephaly, nystagmus, and seizures. [endocrine-abstracts.org]
Seizures occur spontaneously but may be precipitated by multiple factors, including emotional, intellectual, or metabolic. The main feature of absence seizures is loss of responsiveness with cessation of ongoing activity. [centogene.com]
[…] plus, Migraine, familial hemiplegic SCN1B Atrial fibrillation, Brugada syndrome, Generalized epilepsy with febrile seizures plus SCN2A Epileptic encephalopathy, early infantile, Seizures, benign familial infantile SCN8A Cognitive impairment, Epileptic [genda.com.ar]
[…] syndrome Chronic granulomatous disease Noonan syndrome Adult-onset proximal spinal muscular atrophy, autosomal dominant Childhood absence epilepsy Chronic mucocutaneous candidiasis Encephalopathy due to GLUT1 deficiency Epilepsy with myoclonic-astatic seizures [csbg.cnb.csic.es]
In patients with HC type 2, seizures and other neurological complications are an important part of the disorder. [cancertherapyadvisor.com]
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Nystagmus
We describe a child with a stomatocytosis due to a SLC2A1 mutation presenting with hyperkalaemia, liver disease, microcephaly, nystagmus, and seizures. [endocrine-abstracts.org]
Workup
Biopsy
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Liver Biopsy
The child continued to have conjugated hyperbilirubinaemia; a liver biopsy suggested non-specific hepatitis. She developed abnormal movements, nystagmus and microcephaly; EEG was normal but MRI showed periventricular calcifications. [endocrine-abstracts.org]
Treatment
Hyperkalaemia continued, requiring occasional treatment with Salbutamol, Insulin or Fludrocortisone. Adrenal pathology was excluded. Investigation suggested normokalaemia when samples were assayed immediately and therefore ‘pseudo-hyperkalaemia’. [endocrine-abstracts.org]
The impact of the correct diagnosis is to enable effective treatment of the condition. [impact.ref.ac.uk]
Anticoagulant treatment should be given, often on a long term basis. [ucl.ac.uk]
Given the rarity of these diseases, the treatments outlined in the abstracts are not always evidence based. The information in the abstracts isnot intended to replace existing local, regional or country specific recommendations and guidelines. [orpha.net]
The diagnosis, follow-up and treatment of the involved diseases have gradually improved. غشاء سلول های قرمز یکی از بهترین و شناخته شده غشاء از نظر ساختار، عملکرد و اختلالات ژنتیکی است. همانطور که هر غشای پلاسمایی آن واسطه توابع حمل و نقل. [scipers.com]
Prognosis
This formusually soccurs in children between the ages of 4 and 10 years and in most cases has a good prognosis. [centogene.com]
THERAPY, COURSE, AND PROGNOSIS The majority of hydrocytosis patients suffer from significant lifelong anemia. [medtextfree.wordpress.com]
Although the fluid can cause trouble and much concern, it resolves spontaneously after delivery and carries a good prognosis. [ucl.ac.uk]
What should you tell the patient and the family about prognosis? The natural histories of hereditary stomatocytosis and hereditary xerocytosis are not well understood. [cancertherapyadvisor.com]
Acanthocytes have long, rigid projections and become entrapped and hemolyzed in the spleen, which results in a rapidly progressive anemia of moderate severity, splenomegaly, and jaundice. 4, 13 Spur cell anemia in end-stage liver disease has a poor prognosis [doctorlib.info]
Etiology
They are organised into groups, and further divided into clinical, etiological or histopathological sub-types. [orpha.net]
The etiology of these disorders of cation permeability is unknown. [medtextfree.wordpress.com]
Epidemiology
Education & Training Certifications & Licensure CA State Medical License 1966 - 2019 American Board of Pediatrics Pediatrics American Board of Pediatrics Pediatric Hematology-Oncology Clinical Trials The Epidemiology of Priapism (Sickle Cell Disease) [doximity.com]
Hereditary spherocytosis Epidemiology § 1:5000 births (1:2000 if subclinical forms included) § Northern Europeans / Americans principally § Also Algeria, Tunisia, Egypt, Japan, N India, Brazil § Rare in black population Pathology § 7 Important proteins [ihaematology.com]
The protein defect results from missense mutations in the SLC4A1 gene. [10] Epidemiology Frequency International These hereditary syndromes are extremely rare, and accurate data concerning their prevalence are lacking; however, overall they are thought [emedicine.medscape.com]
Pathophysiology
Balances summaries of relevant pathophysiology with clear, practical clinical guidance to help you thoroughly understand the underlying science of diseases. [books.google.de]
The primary defect is in the anion transporter, band 3 (see section on “Pathophysiology”). [cancertherapyadvisor.com]
Several physiological and pathophysiological functions of RBC-derived microvesicles have been described. [frontiersin.org]
Describe the causes and pathophysiology of hereditary and acquired conditions characterized by acanthocytosis. Describe the cause, pathophysiology, clinical manifestations, laboratory findings, and treatment for paroxysmal nocturnal hemoglobinuria. [doctorlib.info]
Pathophysiology of abnormal cell volume in human red cells. In: F Lang, ed. Cell volume regulation. Basel: Karger, 1998: 120-239. 14 Lock SP, Sephton Smith R, Hardisty RM. [the-medical-dictionary.com]
Prevention
The mutation both prevents glucose transport and causes a cation leak. A ketogenic diet improved seizures and reduced abnormal movements, as in the more common GLUT1-deficiency syndrome. [endocrine-abstracts.org]
Prevention of drug-induced disease is possible by choosing alternate drugs when possible. [doctorlib.info]
This is a clinically benign condition but it must be distinguished from true hyperkalemia to prevent inadvertent treatment of patients and potential harm. [cancertherapyadvisor.com]
Delay time of hemoglobin s polymerization prevents most cells from sickling in vivo. [frontiersin.org]