Acalculia (symptoma)

Acalculia est symptoma quo malum facultatis alculationes arithmethicas perficiendi, cum ea facultate ante apprehensa, cum ergo in vitae cursu vel deminutio vel damnum morbo secundario causa.

Notio similiter adhibita est dyscalculia. In determinatione erga acalculiam, quae post novum morbum quasi symptoma novum oritur, in dysculculia facultas calculandi numquam antea apprehensa erat.

Etymologia

Notio de praefixo Graeco "a-", sine, et verbo Latino "calculare" composita.

Pathophysiologia

Facultas calculandi nexa est cum gyribus et angulari et supramarginali, praecipue sinistris.

Connectitur facultas calculandi cum functionibus cerebri et gyri angularis et gyri supramarginalis haemispheriae dominantis sinistrae (98% hominum), qui circum transitum loborum et parietalis et temporalis et occipitalis praecipue (98% hominum) sinistrorum locati sunt.

Detrimentum structurarum harum, ut infarctu cerebri ischaemico vel haemorrhagico^[1], symptoma acalculiae generare queant. Syndroma Gerstmannianum (agraphia, acalculia, agnosia digitorum, confusione dextre et sinistre)^[2] vel syndroma angulare (aphasia amnestica, alexia, agraphia, acalculia) duo syndromata describunt. Interdum, rarius, acalculia initium dementiae significare potest^[3]. Rarissime etiam laesio thalami anteromedialis sinistri una cum acalculia observata est^[4], hic facultas calculandi imprimis valde tarda cognita est.

Distinguuntur ab anno 1926 acalculia primaria et secundaria^[5]: Primaria forma purus, secundaria autem secundum alias perturbationes cerebri.

Notae

↑ Grimaldi M., Jeanmonod R. (2018). "Acute stroke presenting with isolated acalculia". The American journal of emergency medicine 36 (10): 1923 doi:10.1016/j.ajem.2018.06.038
↑ Zukic S., Mrkonjic Z., Sinanovic O., Vidovic M., Kojic B. (2012). "Gerstmann's syndrome in acute stroke patients". Acta informatica medica 20 (4): 242-3 doi:10.5455/aim.2012.20.242-243
↑ Mendez M. F., Moheb N., Desarzant R. E., Teng E. H. (2018). "The Progressive Acalculia Presentation of Parietal Variant Alzheimer's Disease". Journal of Alzheimer's disease 63 (3): 941-8 doi:10.3233/JAD-180024
↑ Jensen M. B. (Dec 2010). "The Accountant Who Lost Arithmetic: A Case Report of Acalculia With a Left Thalamic Lesion". Journal of medical cases 1 (3): 92-3 doi:10.4021/jmc61w
↑ Berger H. (1926). "Über Rechenstörungen bei Herderkrankungen des Großhirns". Archiv für Psychiatrie und Nervenkrankheiten 78 (1): 238-63 doi:10.1007/BF01996620

Nexus interni

[1] Grimaldi M., Jeanmonod R. (2018). "Acute stroke presenting with isolated acalculia". The American journal of emergency medicine 36 (10): 1923 doi:10.1016/j.ajem.2018.06.038

[2] Zukic S., Mrkonjic Z., Sinanovic O., Vidovic M., Kojic B. (2012). "Gerstmann's syndrome in acute stroke patients". Acta informatica medica 20 (4): 242-3 doi:10.5455/aim.2012.20.242-243

[3] Mendez M. F., Moheb N., Desarzant R. E., Teng E. H. (2018). "The Progressive Acalculia Presentation of Parietal Variant Alzheimer's Disease". Journal of Alzheimer's disease 63 (3): 941-8 doi:10.3233/JAD-180024

[4] Jensen M. B. (Dec 2010). "The Accountant Who Lost Arithmetic: A Case Report of Acalculia With a Left Thalamic Lesion". Journal of medical cases 1 (3): 92-3 doi:10.4021/jmc61w

[5] Berger H. (1926). "Über Rechenstörungen bei Herderkrankungen des Großhirns". Archiv für Psychiatrie und Nervenkrankheiten 78 (1): 238-63 doi:10.1007/BF01996620

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