start-ver=1.4 cd-journal=joma no-vol=87 cd-vols= no-issue=11-12 article-no= start-page=1143 end-page=1153 dt-received= dt-revised= dt-accepted= dt-pub-year=1975 dt-pub=19751230 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Studies on the Nehb Lead System Part U a clinical significance of the Nehb Lead System kn-title=Nehb誘導に関する研究 第二編 Nehb誘導の臨床的意義 en-subtitle= kn-subtitle= en-abstract= kn-abstract=A characteristic of the Nehb lead system and especially a value of the lead Nehb-D were studied in 136 subjects 1) The lead Nehb-D was similar to the lead V(7), the lead Nehb-A to the lead V(5) and the lead Nehb-J to the lead V(3). Those similarities were about 50 per cent each. 2) On a form of QRS complex of the Nehb lead system, the lead D was mostly qR type. The lead A was mostly qRs, then RS and qRs type in order of frequency. The lead J was mostly RS type. 3) The electrocardiograms of 80 healthy men were all normal both in the standard lead system and in the Nehb lead system. 4) The number of cases of abnormal ST changes at rest were 22 in the standard lead system and 55 in the lead Nehb-D out of 136 cases. 5) The number of abnormal ST-T changes after exercise tests were 61 in the standard lead system and 90 in the Nehb lead system. 6) In the cases with abnormal ST-T changes only in the leads U, V and aVf, the abnormal ST-T changes of the lead Nehb-D were a few. en-copyright= kn-copyright= en-aut-name=YonaharaNobuhiko en-aut-sei=Yonahara en-aut-mei=Nobuhiko kn-aut-name=与那原宣彦 kn-aut-sei=与那原 kn-aut-mei=宣彦 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部第一内科教室 END start-ver=1.4 cd-journal=joma no-vol=87 cd-vols= no-issue=11-12 article-no= start-page=1133 end-page=1142 dt-received= dt-revised= dt-accepted= dt-pub-year=1975 dt-pub=19751230 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Studies on the Nehb Lead System Part T Fundamental studies on the Nehb Lead System kn-title=Nehb誘導に関する研究 第一編 Nehb誘導の基礎的検討 en-subtitle= kn-subtitle= en-abstract= kn-abstract=The Nehb lead system was examined to emphasize and find out at early stage ST depression of the left precordial leads (V(5), V(6), V(7)). The results were as follows. 1) The 19 patiens with ischemic heart disease were recorded after exercise tests. The mean QRS vector was situated on the left, posterior and inferior. The mean ST vector was directed to the right, anterior and superior. Namely, the former tended to be at a 180° angle to the latter. 2) The experiments of a torso, which was made by atrunk model of a japanese adult man, proved that a magnitude of the lead Nehb-D was larger than those of the leads V(5), V(6), V(7). From the image surface which was obtained from the experiments of the torso the direction of the lead Nehb-D was situated on the same left, posterior and inferior as the leads V(6), V(7), especially close at the lead V(7). The lead Nehb-A was the most largest magnitude, but the direction was situated on the same left, anterior and inferior as the V(5). The directions of the leads Nehb-D, A, J and the leads V(5), V(6), V(7) were the same in both azimuth and elevation and the image surface. Accordingly, the lead Nehb-D is usefull to emphasize and find out ST depression earlier than in the left precordial leads (V(5), V(6), V(7)). en-copyright= kn-copyright= en-aut-name=YonaharaNobuhiko en-aut-sei=Yonahara en-aut-mei=Nobuhiko kn-aut-name=与那原宣彦 kn-aut-sei=与那原 kn-aut-mei=宣彦 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部第一内科教室 END start-ver=1.4 cd-journal=joma no-vol=87 cd-vols= no-issue=11-12 article-no= start-page=1075 end-page=1083 dt-received= dt-revised= dt-accepted= dt-pub-year=1975 dt-pub=19751230 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Hemodynamic Effects of Three Kinds of Beta-Adrenergic Blockade (Alprenolol, Propranolol and Practolol) -experimental study- kn-title=Beta-Adrenergic Blockadeの血行動態に与える影響―Alprenolol, PropranololおよびPractololの実験的比較検討 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Effects of alprenolol, propranolol and practolol on hemodynamics were studied in open-chest anesthetized dogs, and following results were obtained; Coronary blood flow was decreased accompanied with a rise in coronary vascular resistance following the administiation of the drug. Cardiac output and heart rate were decreased, and total peripheral resistance was elevated significantly. Practolol produced lesser changes in coronary and systemic hemodynamics than alprenolol or propranolol; especially lesser elevation in total peripheral resistance and smaller decrease in maximun blood flow of aorta. en-copyright= kn-copyright= en-aut-name=SaitoDaiji en-aut-sei=Saito en-aut-mei=Daiji kn-aut-name=斉藤大治 kn-aut-sei=斉藤 kn-aut-mei=大治 aut-affil-num=1 ORCID= en-aut-name=TawaraRitsuya en-aut-sei=Tawara en-aut-mei=Ritsuya kn-aut-name=田原律哉 kn-aut-sei=田原 kn-aut-mei=律哉 aut-affil-num=2 ORCID= en-aut-name=HiranoKazuhiro en-aut-sei=Hirano en-aut-mei=Kazuhiro kn-aut-name=平野和博 kn-aut-sei=平野 kn-aut-mei=和博 aut-affil-num=3 ORCID= en-aut-name=UedaMinoru en-aut-sei=Ueda en-aut-mei=Minoru kn-aut-name=上田稔 kn-aut-sei=上田 kn-aut-mei=稔 aut-affil-num=4 ORCID= en-aut-name=MaeRitsuo en-aut-sei=Mae en-aut-mei=Ritsuo kn-aut-name=前律夫 kn-aut-sei=前 kn-aut-mei=律夫 aut-affil-num=5 ORCID= en-aut-name=MinatoTakeshi en-aut-sei=Minato en-aut-mei=Takeshi kn-aut-name=湊武 kn-aut-sei=湊 kn-aut-mei=武 aut-affil-num=6 ORCID= en-aut-name=YonaharaNobuhiko en-aut-sei=Yonahara en-aut-mei=Nobuhiko kn-aut-name=与那原宣彦 kn-aut-sei=与那原 kn-aut-mei=宣彦 aut-affil-num=7 ORCID= en-aut-name=HaraokaShoichi en-aut-sei=Haraoka en-aut-mei=Shoichi kn-aut-name=原岡昭一 kn-aut-sei=原岡 kn-aut-mei=昭一 aut-affil-num=8 ORCID= affil-num=1 en-affil= kn-affil=岡山大学医学部第一内科教室 affil-num=2 en-affil= kn-affil=岡山大学医学部第一内科教室 affil-num=3 en-affil= kn-affil=岡山大学医学部第一内科教室 affil-num=4 en-affil= kn-affil=岡山大学医学部第一内科教室 affil-num=5 en-affil= kn-affil=岡山大学医学部第一内科教室 affil-num=6 en-affil= kn-affil=岡山大学医学部第一内科教室 affil-num=7 en-affil= kn-affil=岡山大学医学部第一内科教室 affil-num=8 en-affil= kn-affil=岡山大学医学部中央検査部 END