60.
THE ANALYSIS OF 107 ELDER PATIENTS AT 3360m WITH ARRHYTHMIAS USING 24-
HOUR ELECTROCARDIOGRAPHY MONITOR . Huang Guei-Wen
1
, Hu Xue-Jun
1
, Jiang Lei
1
,
Yang Li-Hui
1
, Gesang Dawa
1
, Zhaxi Pingcuo
1
, Huang Ping
1
, Cang Jue
1
. Dept. Internal Medicine,
Tibet People's Hospital of Tibet Autonomous Region, Lhasa, R. P. China
1
.
To explore the incidence of arrhythmia and the lowest heart rate in elder patients with
arrhythmias at altitude 3360m by 24-hour electrocardiography monitor. 107 elder patients with
arrhythmias were supervised by nurses using 24-hour electrocardiography monitor (HP43420 ).
The rate of single premature atrial contraction (PAC) was 86.9%, and paired pattern of PAC was
18.8%, supervertricular tachycardia (SVT) was 26.2%. The rates of single premature ventricular
constraction (PVC) and paired pattern of PVC were 71.9% and 28.0%, respectively. The rate of
ventricular tachycardia (VT) was 7.5%. The range of heart rates was from 37 bpm to 99 bpm; 2
cases less than 40 bpm were found. The lowest heart rate did not decline with age. In conclusion,
the rates of single and paired premature contraction were obviously higher than healthy groups in
the early stage of old age at sea level. The lowest heart rate did not decline with age and the range
of heart rate is wide. However, it is important to pay more attention to those whose lowest heart
rate is less than 40 bpm and the maximal heart rate are less than 100 bpm.
61.
BLOOD PRESSURE AND ECG ANALYSIS OF HYPERTENSION PATINETS IN URBAN
AND RURAL AREAS OF LHASA TIBET CHINA . Huang Gui-Wen
1
, Hu Xue-Jun
1
, Zhao Yu-
Hua
1
. The
3
rd Department of Internal Medicine, People's Hospital of Tibet Autonomous Region,
Lhasa, China
1
.
Using the Minnesota code to analyze the correlation between the blood pressure and ECG
changes of hypertension patients in the mid-elderly population in urban and rural area of Lhasa.
Methods: The data were collected in 1974 hypertension patients (40 years and over) who
underwent ECG examination. Blood pressure and ECG were examined and the statistical analysis
was carried out for ECG data by means of Minnesota code and the correlation analysis were
performed between the abnormal code and blood pressure. Result: The blood pressures of 90.32%
of those hypertension patients were beyond the normal range. Over one third of patients had
abnormal ECG code (44.53%), which is higher than that of a similar age group of hypertension
patients at sea level. T wave changes and ST segment depression were the most common
abnormalities. Pathologic Q waves and arrhythmia codes occurred only 1.42% and 5.22%
respectively. Most abnormalities were positively related with aging. Systolic blood pressure from
these patients showed obviously positive correlation with ECG abnormalities. Conclusion: There
was a relatively higher rate of abnormal codes in ECG among the hypertension patients in the
mid-elderly population in the urban and rural areas of Lhasa, in which ST-T changes were the
most common. The abnormalities in ECG increased with the rise of systolic pressure and aging.
Intervention measurements should be taken to help the hypertension patients.
62.
CHANGES OF ACTH LEVEL IN HYPOXIA AND THEIR SIGNIFICANCE. Zhu Hai-Hong
1
,
Wu Hong-Fu
1
, Geng Pai-Li
1
, Zhao Ming
1
, Zhao Jiu-Da
1
, He Ju-Xiang
1
. Department of
Immunology of Qinghai Medical College, Qinghai, China
1
.
To investigate the changes of serum ACTH in Wistar rats after brought to different altitudes
and to clarify the effect on function of neuroendocrine cell, and to find out the relation between
hypoxia and changes of the function of neuroendocrine cells. Method: Using ELISA to detect the
concentration of serum and brain tissue ACTH in rats. Results: ACTH levels in altitude of 4050m
significantly increased (p<0.05). At 3100m ACTH also somewhat increased, but not significantly
(p0.05). In addition, serum ACTH at the altitude of 4050m was higher than that of 3100m groups,
but no significant changes (p0.05). Conclusion: ACTH in the serum has significant changes
because of the hypoxia. This means that it may be involved in the process of adaptation of the
function of neuroendocrine cell in high altitude.
