{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T18:53:37Z","timestamp":1769108017997,"version":"3.49.0"},"reference-count":29,"publisher":"Akademiai Kiado Zrt.","issue":"3","license":[{"start":{"date-parts":[[2021,1,17]],"date-time":"2021-01-17T00:00:00Z","timestamp":1610841600000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["akjournals.com"],"crossmark-restriction":true},"short-container-title":["OH"],"published-print":{"date-parts":[[2021,1,17]]},"abstract":"<jats:p><jats:bold>\u00d6sszefoglal\u00f3.<\/jats:bold>\n                    <jats:italic>Bevezet\u00e9s:<\/jats:italic> Az art\u00e9ri\u00e1s baroreflex-\u00e9rz\u00e9kenys\u00e9gi (BRS-) indexek\n                    egys\u00e9gnyi nyom\u00e1sv\u00e1ltoz\u00e1sra adott \u00e9lettani v\u00e1laszokat \u00edrnak le. Az RR-intervallum\n                    gyors v\u00e1laszait a cardiovagalis BRS-indexekkel, a vasomotorv\u00e1laszokat az izom\n                    szimpatikus idegi aktivit\u00e1s (MSNA) v\u00e1laszain alapul\u00f3 szimpatikus-BRS-indexekkel\n                    jellemezz\u00fck. Sz\u00edvel\u00e9gtelens\u00e9gben k\u00f3rosan cs\u00f6kkent \u00e9rt\u00e9keik kedvez\u0151tlen\n                    kimenetelt jeleznek. <jats:italic>Betegek \u00e9s m\u00f3dszerek:<\/jats:italic> A BRS-indexek\n                    meghat\u00e1rozhat\u00f3s\u00e1g\u00e1t 52, sz\u00edvel\u00e9gtelens\u00e9gben szenved\u0151 betegben (kor: 59 \u00b1 10 \u00e9v;\n                    EF: 37 \u00b1 11%) \u00e9s 11, kor szerint illesztett eg\u00e9szs\u00e9ges \u00f6nk\u00e9ntesben vizsg\u00e1ltuk.\n                    EKG- \u00e9s v\u00e9rnyom\u00e1sfelv\u00e9telekb\u0151l h\u00e1rom cardiovagalis BRS-indexet sz\u00e1m\u00edtottunk; a\n                    n\u00f6vekv\u0151, illetve cs\u00f6kken\u0151 spont\u00e1n szekvenci\u00e1k m\u00f3dszer\u00e9n alapul\u00f3\n                        <jats:italic>up-BRS<\/jats:italic>-t \u00e9s <jats:italic>down-BRS<\/jats:italic>-t, tov\u00e1bb\u00e1 az\n                    alacsony frekvenciatartom\u00e1ny-beli \u2019cross-spectralis \u2019 indexet, az\n                        <jats:italic>LF-alf\u00e1<\/jats:italic>t. Egy perif\u00e9ri\u00e1s ideg (nervus peroneus) perkut\u00e1n\n                    punkci\u00f3j\u00e1val detekt\u00e1ltuk az MSNA szimpatikus cs\u00facs incidenci\u00e1j\u00e1t (cs\u00facs\/100\n                    sz\u00edvciklus), s ezt korrel\u00e1ltattuk a diastol\u00e9s nyom\u00e1s 3 Hgmm s\u00e1vokba rendezett\n                    \u00e9rt\u00e9keivel. \u00cdgy nyert\u00fck a szimpatikus BRS jellemz\u0151it, a\n                        <jats:italic>BRS<\/jats:italic><jats:sub>SY-incidencia<\/jats:sub>-\u00e9rt\u00e9keket.\n                        <jats:italic>Eredm\u00e9nyek:<\/jats:italic> Az up- \u00e9s down-BRS-szekvenci\u00e1k csak a betegek\n                    19%-\u00e1ban voltak meghat\u00e1rozhat\u00f3k, az LF-alfa a 69%-ukban. Azok, akikn\u00e9l\n                    cardiovagalis BRS nem volt meghat\u00e1rozhat\u00f3, szignifik\u00e1nsan cs\u00f6kkent\n                    RR-intervallum-ingadoz\u00e1st \u00e9s magasabb NT-proBNP-\u00e9rt\u00e9keket mutattak. A\n                    meghat\u00e1rozhat\u00f3 cardiovagalis BRS-indexek nem k\u00fcl\u00f6n\u00edtett\u00e9k el a betegeket \u00e9s a\n                    kontrollszem\u00e9lyeket. A BRS<jats:sub>SY-incidencia<\/jats:sub>-\u00e9rt\u00e9k 58%-ban \u00e1llt\n                    rendelkez\u00e9sre, s csak\u00fagy, mint maga a \u201ecs\u00facs\u201d incidencia, j\u00f3l elk\u00fcl\u00f6n\u00edtette a\n                    betegeket \u00e9s az \u00f6nk\u00e9nteseket. A hi\u00e1nyz\u00f3 baroreflex\u00e9rt\u00e9k a magas \u201ecs\u00facs\u201d\n                    incidenci\u00e1val \u00e1llt \u00f6sszef\u00fcgg\u00e9sben. <jats:italic>K\u00f6vetkeztet\u00e9s:<\/jats:italic> A\n                    cardiovagalis BRS-\u00e9rt\u00e9kek csak korl\u00e1tozottan alkalmasak eg\u00e9szs\u00e9ges \u00f6nk\u00e9ntesek \u00e9s\n                    sz\u00edvel\u00e9gtelen betegek elk\u00fcl\u00f6n\u00edt\u00e9s\u00e9re, a meghat\u00e1rozhatatlan \u00e9rt\u00e9kek s\u00falyosabb\n                    betegs\u00e9gre utalnak. A BRS<jats:sub>SY-incidencia<\/jats:sub> elk\u00fcl\u00f6n\u00edti az eg\u00e9szs\u00e9ges \u00e9s a\n                    beteg csoportokat; a hi\u00e1nyz\u00f3 \u00e9rt\u00e9k a fokozott szimpatikus aktivit\u00e1ssal \u00e1ll\n                    \u00f6sszef\u00fcgg\u00e9sben. Orv Hetil. 2021; 162(3): 91\u201398.<\/jats:p>\n                <jats:p><jats:bold>Summary.<\/jats:bold>\n                    <jats:italic>Introduction:<\/jats:italic> Arterial baroreflex sensitivity (BRS) is\n                    characterized by the magnitude of physiological responses to arterial pressure\n                    changes. Rapid RR interval responses are quantified by cardiovagal BRS\n                    parameters, sympathetic responses could be assessed by changes in muscle\n                    sympathetic nerve activity (MSNA). Abnormal indices in heart failure are\n                    associated with poor outcome. <jats:italic>Patients and methods:<\/jats:italic> 52, heart\n                    failure patients (age 59 \u00b1 10 years, EF 37 \u00b1 11%), and 11, age-matched healthy\n                    volunteers were studied. From ECG and arterial pressure recordings\n                        <jats:italic>up-BRS<\/jats:italic> and <jats:italic>down-BRS<\/jats:italic> values were determined\n                    using the method of spontaneous sequences. The low frequency cross-spectral\n                    gain, the <jats:italic>LF alpha<\/jats:italic> was also determined. Percutaneous puncture\n                    of the peroneal nerves allowed determination of MSNA burst incidence (burst\/100\n                    cycles), which was correlated to corresponding diastolic pressure bins of 3\n                    mmHg, yielding a sympathetic BRS, the\n                        <jats:italic>BRS<\/jats:italic><jats:sub>SY-incidence<\/jats:sub>. <jats:italic>Results:<\/jats:italic> Up-\n                    and down-BRS could be calculated in 19% of the patients, LF alpha was determined\n                    in 69%. Those with missing cardiovagal BRS values showed diminished RR interval\n                    variation, and higher levels of NT-proBNP. The measurable cardiovagal BRS\n                    indices did not separate patients and healthy volunteers.\n                        BRS<jats:sub>SY-incidence<\/jats:sub> could be determined in 58% of the patients. The\n                    sympathetic gain as well as the burst incidence differed significantly between\n                    patients and healthy volunteers. Missing BRS<jats:sub>SY-incidence<\/jats:sub> was\n                    associated with higher burst incidence. <jats:italic>Conclusion:<\/jats:italic> Cardiovagal\n                    BRS indices have limited value in differentiating healthy and heart failure\n                    subjects. Incalculable values among patients indicate more severe disease state.\n                        BRS<jats:sub>SY-incidence<\/jats:sub> does separate healthy and diseased population,\n                    the missing BRS<jats:sub>SY-incidence<\/jats:sub> values are related to increased\n                    sympathetic activity. Orv Hetil. 2021; 162(3): 91\u201398.<\/jats:p>","DOI":"10.1556\/650.2021.31962","type":"journal-article","created":{"date-parts":[[2021,3,30]],"date-time":"2021-03-30T12:09:37Z","timestamp":1617106177000},"page":"91-98","update-policy":"https:\/\/doi.org\/10.1556\/policypage.crossmark.crossref.1","source":"Crossref","is-referenced-by-count":2,"title":["Cardiovagalis \u00e9s szimpatikus art\u00e9ri\u00e1s baroreflex szab\u00e1lyoz\u00e1s\u00e1nak vizsg\u00e1lata sz\u00edvel\u00e9gtelens\u00e9gben"],"prefix":"10.1556","volume":"162","author":[{"given":"R\u00e9ka","family":"Urbancsek","sequence":"first","affiliation":[{"name":"1 Debreceni Egyetem, \u00c1ltal\u00e1nos Orvostudom\u00e1nyi Kar, Kardiol\u00f3giai \u00e9s Sz\u00edvseb\u00e9szeti Klinika, Debrecen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ildik\u00f3 No\u00e9mi","family":"Forg\u00e1cs","sequence":"additional","affiliation":[{"name":"1 Debreceni Egyetem, \u00c1ltal\u00e1nos Orvostudom\u00e1nyi Kar, Kardiol\u00f3giai \u00e9s Sz\u00edvseb\u00e9szeti Klinika, Debrecen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T\u00edmea Bianka","family":"Papp","sequence":"additional","affiliation":[{"name":"1 Debreceni Egyetem, \u00c1ltal\u00e1nos Orvostudom\u00e1nyi Kar, Kardiol\u00f3giai \u00e9s Sz\u00edvseb\u00e9szeti Klinika, Debrecen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Judit","family":"Bocz\u00e1n","sequence":"additional","affiliation":[{"name":"2 Debreceni Egyetem, \u00c1ltal\u00e1nos Orvostudom\u00e1nyi Kar, Neurol\u00f3giai Klinika, Debrecen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Judit","family":"Barta","sequence":"additional","affiliation":[{"name":"1 Debreceni Egyetem, \u00c1ltal\u00e1nos Orvostudom\u00e1nyi Kar, Kardiol\u00f3giai \u00e9s Sz\u00edvseb\u00e9szeti Klinika, Debrecen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Istv\u00e1n","family":"\u00c9des","sequence":"additional","affiliation":[{"name":"1 Debreceni Egyetem, \u00c1ltal\u00e1nos Orvostudom\u00e1nyi Kar, Kardiol\u00f3giai \u00e9s Sz\u00edvseb\u00e9szeti Klinika, Debrecen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zolt\u00e1n","family":"Csan\u00e1di","sequence":"additional","affiliation":[{"name":"1 Debreceni Egyetem, \u00c1ltal\u00e1nos Orvostudom\u00e1nyi Kar, Kardiol\u00f3giai \u00e9s Sz\u00edvseb\u00e9szeti Klinika, Debrecen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L\u00e1szl\u00f3","family":"Rudas","sequence":"additional","affiliation":[{"name":"3 Szegedi Tudom\u00e1nyegyetem, \u00c1ltal\u00e1nos Orvostudom\u00e1nyi Kar, Aneszteziol\u00f3giai \u00e9s Intenz\u00edv Ter\u00e1pi\u00e1s Int\u00e9zet, Szeged, Semmelweis u. 6., 6725"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"425","reference":[{"key":"ref0","doi-asserted-by":"publisher","unstructured":"1 Rudas L, Crossman AA, Morillo CA, et al. 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