(unblind)
A STUDY OF SAFE BATHING FOR MYOCARDIAL INFARCTION PATIENTS BY ANALYZING PARAMETERS RELATED TO HEART BEAT
　　　
　　Sumiko Higo: Associate Professor: Okayama prefectural University.
　Kiyoko Fukai: Professor: Graduate School of Health Sciences, Okayama University

Ⅰ．Purpose：We aimed to investigate safe bathing for myocardial infarction patients（MIPs）by analyzing heart beats on electrocardiograms (ECG) recorded while the subjects were bathing.
Ⅱ．Design : Nonrandomized controlled trial.
Ⅲ．Population/sample studied : Patient group (PG) consisted of 19 acute MIPs (mean age, 61.1±9.2 yrs), and control group (CG), 19 healthy adults (61.0±5.7 yrs).
Ⅳ．Methods：During 15 minutes bradykinetic bathing, subjects soaked two times in the hot bathtub at 40 degrees C for 3 min. They scrubbed their bodies with soap outside the bath-tab for 2 and a half minutes．Blood pressure and holter ECG were recorded continuously.
Ⅴ．Data/analysis：The data were analyzed using Mann-Whitney and Wilcoxon's rank sum tests. The level of significance was adopted under 5%.
Ⅵ．Findings：No subjects complained of any symptoms. Neither serious arrhythmia nor ST-T changes on ECG were observed in any subject. However, premature ventricular contraction (PVC), classified into grade 2 of Lown Classification, was observed on ECG in the three PG subjects, who had left ventricular ejection faction (LVEF) of 40-49%. The PVC occurred more frequently by bathing. There were no significant differences between the activities of sympathetic and parasympathetic nerves, nor between R-R intervals of the 2 groups. But systolic blood pressure was lower in PG than in CG by bathing (p<0.05).
Ⅶ．Implications：The patient, whose LVEF is less than 40-49% and have frequent PVC, is supposed to have risk for PVC during bathing.
Ⅷ．Conclusions：Although 15 minutes hot bathing with slow movement is safe procedure for MIPs, it has a risk of frequent PVC.
Ⅸ．Length for period of study：1/5/2008 ~ 31/3/2010
Ⅹ．Funding received：Grant-in-Aid for Scientific Research (C) by Japan Society for the Promotion of Science（JSPS）

(blind)
A STUDY OF SAFE BATHING FOR MYOCARDIAL INFARCTION PATIENTS BY ANALYZING PARAMETERS RELATED TO HEART BEAT
　　　
　
Ⅰ．Purpose：We aimed to investigate safe bathing for myocardial infarction patients（MIPs）by analyzing heart beats on electrocardiograms (ECG) recorded while the subjects were bathing.
Ⅱ．Design : Nonrandomized controlled trial.
Ⅲ．Population/sample studied : Patient group (PG) consisted of 19 acute MIPs (mean age, 61.1±9.2 yrs), and control group (CG), 19 healthy adults (61.0±5.7 yrs).
Ⅳ．Methods：During 15 minutes bradykinetic bathing, subjects soaked two times in the hot bathtub at 40 degrees C for 3 min. They scrubbed their bodies with soap outside the bath-tab for 2 and a half minutes．Blood pressure and holter ECG were recorded continuously.
Ⅴ．Data/analysis：The data were analyzed using Mann-Whitney and Wilcoxon's rank sum tests. The level of significance was adopted under 5%.
Ⅵ．Findings：No subjects complained of any symptoms. Neither serious arrhythmia nor ST-T changes on ECG were observed in any subject. However, premature ventricular contraction (PVC), classified into grade 2 of Lown Classification, was observed on ECG in the three PG subjects, who had left ventricular ejection faction (LVEF) of 40-49%. The PVC occurred more frequently by bathing. There were no significant differences between the activities of sympathetic and parasympathetic nerves, nor between R-R intervals of the 2 groups. But systolic blood pressure was lower in PG than in CG by bathing (p<0.05).
Ⅶ．Implications：The patient, whose LVEF is less than 40-49% and have frequent PVC, is supposed to have risk for PVC during bathing.
Ⅷ．Conclusions：Although 15 minutes hot bathing with slow movement is safe procedure for MIPs, it has a risk of frequent PVC.
Ⅸ．Length for period of study：1/5/2008 ~ 31/3/2010
Ⅹ．Funding received：Grant-in-Aid for Scientific Research (C) by Japan Society for the Promotion of Science（JSPS）

(CV)

ＣＵＲＲＩＣＵＬＵＭ ＶＩＴＡＥ ＢＩＯＧＲＡＰＨＩＣＡＬ Name： Sumiko　Higo，R.N.，M.S.N．　　Birth　Date：December/06/52 Home Address：2-6-20-502，Nodayatyou Kita-ward，Okayama，700-0815， 　　　　　　　Japan Telephone：+81‐090‐2049‐0446　　　　Citizenship：Japan Business　Address：Department　of　Nursing，Faculty　of　Health　and　Welfare　 　　　　　　　　　Science，Okayama　Prefectural　University Business　Phone/Fax：+81‐866‐94－2161 E‐Mail　Address：smkhigo＠fhw.oka-pu.ac.jp ＥＤＵＣＡＴＩＯＮ 1971‐1974　Tokyo　Metropolitan　Itabasi　Nursing　School， （R.N.） 1987‐1995　Department　of　Liberal　Arts，（Studies of Psychology and Education course）　 The　Open　University　of　Japan，　 　　　 （Bachelor） 1988‐1989　Nursing　Teacher，s　course，Tokyo　Metropolitan University 2001‐2003　Kobe City College　0f Nursing, Graduate School of Nursing　 　 (M.S.N.) ＷＯＲＫ 　ＥＸＰＥＲＩＥＮＣＥ 1974‐1981　　Tokyo　Metropolitan　Geriatric　Hospital　（Staff Nurse） 1981‐1986　　Jichi　Medical　University　Hospital　　　（Chief Nurse） 1989‐1998　　Tokyo　Metropolitan　Nursing　School　（Staff Nursing Teacher） 1998‐2001　　SEIBO　College　of　Nursing　 (Lecturer) 2003－Present　Okayama　Prefectural　University　　　（Associate Professor） ＣＥＲＴＩＦＩＣＡＴＩＯＮ Nursing　License：Japanese　Nursing　License　　　　　1971‐Present　 ＳＯＣＩＥＴＹ　ＭＥＭＢＥＲＳＨＩＰ Japan　Academy　of　Nursing　Science Japan　Society　of　 Nursing　Research Japanese　Society　of　Nursing　Art　and　Science Japanese　Association　of　Cardiovascular　Nursing Japan　Academy　of　Nursing　Education