Epistaxisul (sangerarea nasului) poate fi un semn al mai multor afectiuni, in functie de varsta si starea de sanatate a persoanei. Vom trece in revista, in cele ce urmeaza, cele mai frecvente boli de pe aceasta lista.
Sangerarea se datoreaza, de regula, unui vas de sange pozitionat in fata septului nazal sau spre spatele cavitatii nazale. Unele din cauzele ruperii vasului sunt banale: o lovitura, sfasierea mucoasei nazale, o raceala sau gripa sau simpla actiune de suflare a nasului. Mai poate fi vorba insa si de o alergie, deshidratarea membranei mucoase din cauza atmosferei uscate, hipertensiunea arteriala, anumite medicamente (aspirina de pilda), expunerea la anumite substante chimice sau deviatia de sept. In cazuri mai rare, poate fi vorba de boli ale sangelui precum leucemia sau hemofilia, tumori in cavitatea nazala sau Boala lui Osler. De multe ori, epistaxisul apare spontan, fara un motiv evident.
Acestea fiind spuse, trebuie sa putem remarca sangerarile nazale care atesta o problema oarecum serioasa, pentru a solicita ajutor medical. Printre semnele care insotesc cazurile mai grave se numara: abundenta hemoragiei, palpitatiile, respiratia intretaiata si paloarea, dar si inghitirea unor cantitati mari de sange, care duce la varsaturi.
Indiferent de starea de sanatate a persoanei in cauza, epistaxisul se poate manifesta fara motive serioase la anumiti indivizi, care trebuie sa fie mai precauti.
Uneori, se recomanda cauterizarea vasului care, prin ruperea frecventa, determina asemenea probleme. In orice caz, medicul trebuie contactat atunci cand apar „semnele de pericol” de mai sus, daca sangerarile sunt dese sau abundente.
Oricat suna de ciudat, unele persoane carora le curge sangele pe nas tind sa-l inghita, din jena sau din reflex. Pe langa greata la care ne-am referit, o astfel de situatie poate ascunde amploarea hemoragiei, care, in cazuri grave, poate duce la necesitatea unei transfuzii.
Prevenire si tratament:
Presiunea si gheata opresc hemoragia.
Epistaxisul poate fi prevenit conform vechiului principiu medical care spune ca trebuie mers la cauza care il provoaca si care, la randul ei, trebuie tratata. Printre paleative se numara evitarea suflarii frecvente a nasului, utilizarea unui umidificator pentru nas, mai ales de persoanele care isi desfasoara activitatea intr-un climat uscat sau la altitudini mari. Merita mentionata si o metoda destul de cunoscuta de oprire a hemoragiei nazale: persoana care are o astfel de sangerare se va aseza in capul oaselor sau pe scaun, strangand intre doua degete varful nasului si respirand pe gura timp de cateva minute. Aceasta va duce la formarea unui cheag de sange si la oprirea hemoragiei. Aplicarea unei pungi cu gheata pe nas poate determina si ea o vasoconstrictie, deci oprirea sangerarii.
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