The Impact Of Digital Thermostat By Central Air-conditioning On The Hospitalized Patients With Unstable Angina Pectoris

ObjectiveBy comparing the differences of the hospital days and cost of inpatients with unstable angina pectoris(UAP)before and after thermostat of central air-conditioning,add the improvement of CCS classification and the change of the level of C-reaction protein,to explore whether the environment temperature intervention have an effect on the conventi onal therapy.MethodsA retrospective analysis was made on 82 cases who admitted to cardiology departm ent of Liaocheng Second People’s Hospital from October 2014 to December 2014.All inpatients with a diagnosis of UAP according to standard criteria received conservative treatment.38 cases who discharged before November 4,2014 defined as the control group.The other 44 cases hospitalized after November 5,2014 defined as the temperature control group.Because our hospital began to use central air-conditional to supply heating on Nove mber 4,2014.Thus,the temperature control group kept the environment temperature betwe en 20-24 degrees centigrade after admission.Results1.The general condition between the two groups has no statistically significant difference(P> 0.05).2.The average hospital days and cost of the control group were6.89±2.19 days and 5912.76±2900.27 RMB.Those of the temperature group respectively were 5.39±2.24 days and 4748.61±2211.20 RMB.3.For the temperature control group,the CCS classification of 41 cases were obviously improved when they discharge.Compared with admission,the levels of C-reaction protein of the two groups both reduced after treatment.But the level of the temperature control group reduced more than the control group,and has statistical significance(P<0.05).ConclusionUsing digital thermostat can significantly reduce the hospital days,cost and the level of C-reaction protein of UAP patients.Meanwhile,digital thermostat had no effect on the final efficacy of the conventional therapy of UAP.It suggested that controlling the enviro nment temperature positively maybe bring benefit to the outcome of coronary diseases.ObjectiveThrough following up the discharged patients with unstable angina pectoris,to observe whether the digital thermostat intervention have an effect on the recurrence rate of outpatients with unstable angina pectoris and the Seattle Angina Questionnaire scores.MethodsA total of 84 cases were selected from the patients with unstable angina pectoris(UAP),who admitted to cardiology department of Liaocheng Second People’s Hospital from July 2015 to October 2015.All inpatients with UAP strictly according to the ESC diagnostic criteria received secondary prevention treatment of coronary heart disease.The patients’ gender,age,a history of alcohol,tobacco,hypertension and diabetes,medications and the temperature control equipment of living environment were detailed recorded on admission.When out of hospital,the doctor trained the patients on health education and the correlation matters needing attention,especially reminded the patients to notice the environment temperature.All patients conducted the Scores Of Seattle Angina Questionnaire(SAQ)at discharged,and re-evaluated the SAQ by using the advanced telephone follow-up system at 4 weeks,8 weeks and 12 weeks after discharge.During follow-up,the recurrence of UAP recorded in detail.Recurrence angina,readmission or cardiac death was the follow-up endpoint.Patients were grouped according to the living environment temperature after entering winter.After the exclusion of the patients whose living environment temperature between 18-20℃(5cases)or were lost to follow-up(5cases),the patients living above 20℃were divided into the temperature control group(34cases),and those people living under 18℃ were divided into the control group(40cases).Finally,the recurrence rate of UAP and the change of the scores of SAQ were compared between the two groups.Results1.The two groups had no significant difference in gender,age,a history of alcohol,tobacco,hypertension,diabetes,and situation of medication(P > 0.05).2.In the temperature control group,24 cases appeared angina recurrence and the recurrence rate was 70.59%;8 cases readmitted for cardiac events and the rehospitalization rate was23.53%;the earliest onset time of UAP was 3 days and the mean time of first angina recurrence after discharged was 7.6 weeks.In the control group,37 cases appeared angina recurrence and the recurrence rate reached up to 92.5%;13 cases readmitted for cardiac events and the rehospitalization rate was 32.5%;the earliest onset time and the mean time of first angina recurrence after discharged were 4 days and 5.1 weeks,respectively.Compared with the control group,the recurrence rate of the temperature control group was lower and the mean time of first angina recurrence was longer,the difference was statistically significant(P < 0.05).But there was no significantly statistical difference between the two groups in the rehospitalization rate(P>0.05).3.The scores of SAQ at discharged were no statistical difference between the two groups(P>0.05).The aggregates score of SAQ and the scores of physical limitation,anginal stability,anginal frequency,satisfaction with treatment and disease cognition of the temperature control group were higher than the control group,the difference between the two groups was statistically significant(P<0.01 or P<0.05).ConclusionUsing digital thermostat to control the living environment temperature can improve the recurrence rate of outpatients with unstable angina pectoris and maintain and the Seattle Angina Questionnaire scores in the cold season,suggesting a beneficial supplement to improve the living environment temperature for the unstable angina pectoris patients who treat with drugs.