HYPERVENTILATION SYNCOPES
\hˌa͡ɪpəvˌɛntɪlˈe͡ɪʃən sˈɪnkə͡ʊps], \hˌaɪpəvˌɛntɪlˈeɪʃən sˈɪnkəʊps], \h_ˌaɪ_p_ə_v_ˌɛ_n_t_ɪ_l_ˈeɪ_ʃ_ə_n s_ˈɪ_n_k_əʊ_p_s]\
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A transient loss of consciousness and postural tone caused by diminished blood flow to the brain (i.e., BRAIN ISCHEMIA). Presyncope refers to the sensation of lightheadedness and loss of strength that precedes a syncopal event or accompanies an incomplete syncope. (From Adams et al., Principles of Neurology, 6th ed, pp367-9)
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Word of the day
Platidiam
- An inorganic water-soluble platinum complex. After undergoing hydrolysis, it reacts DNA produce both intra interstrand crosslinks. These crosslinks appear to impair replication and transcription of DNA. The cytotoxicity cisplatin correlates with cellular arrest in G2 phase cell cycle.