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1.
前部缺血性视神经病变患者动态血压、心率分析   总被引:14,自引:2,他引:12  
目的 观察前部缺血性视神经病变(anterior ischemic optic neuropathy,AION)患者24h动态血压、心率变化特征。 方法 分别对AION和与其性别、年龄相匹配的无AION对照组患者各50例进行24 h血压、心率测量,并绘出由夜间(23:00~5:00)到白天(6:00~22:00)的变化曲线。 结果 两组患者之间白天的血压、心率比较差异无显著性意义(P>0.05),白天血压、心率均高于夜间(t=3.63,3.16; P<0.05)。夜间AION组血压、心率低于对照组(t=3.82,1.77; P<0.01,0.05),2:00~7:00血压,尤其舒张压AION组低于对照组(P<0.01),AION组心率于2:00~5:00低于对照组(女 P<0.05,男 P<0.01),夜间到白天的血压上升曲线AION组呈现缓慢的、波动较大的上升曲线,而对照组则为急剧的、平稳的上升曲线。 结论 AION患者存在着对血压调节的某种缺陷;2:00~7:00血压、心率的低点可能是AION发生的易感时段。 (中华眼底病杂志, 2002, 18: 259-261)  相似文献
2.
Association between ocular pressure and certain health parameters   总被引:7,自引:0,他引:7  
Intraocular pressure (IOP) was measured in a mixed population of 12,803 apparently healthy employed people. Mean IOP was 13.5 +/- 3.3 mmHg, without sex difference. Frequency distribution demonstrated skewness towards high values. IOP weakly correlated with age (R = 0.06), and older subgroups showed more marked skewness, but further analysis showed this effect to be spurious. The correlations of IOP with heart rate and with systolic blood pressure were small, but stronger than with age (R = .16 and .15, respectively). Moreover, when corrected for heart rate, the effect of age was nullified. Other factors found to be correlated with IOP included blood glucose and hemoglobin concentration, smoking, and height. None of these factors significantly increased the correlation between IOP and heart rate or blood pressure, and the skewness was not fully explained by any of these factors or their combinations. The value of the epidemiologic approach to detection of factors responsible for ocular hypertension is stressed.  相似文献
3.
Intraocular pressure: New perspectives   总被引:5,自引:0,他引:5  
Reevaluation of normal intraocular pressure (IOP) was attempted to investigate possible background factors that contribute to variations in IOP. It is well known that IOP increases with age among Western populations, while in the Japanese IOP has been confirmed to decrease with aging. Such paradoxical results can not be reasonably explained without considering systemic conditions rather than local factors peculiar to different races. Accumulated evidence indicates that IOP is positively correlated with blood pressure, obesity and other cardiac risk variables. Incorporation of these factors by stratifying the sample may provide the baseline IOP in those who are different in systemic conditions.  相似文献
4.
基础麻醉在眼科显微手术中的应用   总被引:3,自引:1,他引:2  
目的探讨术前血压突然升高者,手术时的麻醉方法。方法对63例进手术室后血压明显升高(≥24/13.3kPa)者,采用基础麻醉联合神经阻滞麻醉下手术。结果病人均很快(3~5min)安静熟睡,血压降至正常范围内,顺利完成眼科显微手术。术毕(或经催醒)可步行回病房。结论这种联合麻醉对上述患者不失为一种有益的麻醉方法。  相似文献
5.
影响高血压患者小切口非超声乳化手术的相关因素研究   总被引:2,自引:0,他引:2  
目的:通过对正常血压和合并高血压的两组老年性白内障患者行小切口非超声乳化手术中血压及心率变化的分析,了解该手术对高血压患者白内障因素。方法:对伴有高血压的老年性白内障患者66例和正常血压白内障患者66例在心电监护仪监测下进行小切口非超声乳化手术,观察术前及术中不同时间血压及心率的变化。结果:两组患者在进入手术室后血压与病区血压比较均有所不同,高血压组在手术开始和术中10min血压及心率的变化呈现明显升高然后回落的变化。结论:手术相关刺激引起的应激反应在高血压组可以出现神经性血压升高,高血压患者手术中实施心电监护是十分必要的,术前进行耐心细致地解释和安慰工作是十分关键的。  相似文献
6.
眼外伤与眼心反射   总被引:1,自引:0,他引:1  
目的 了解眼外伤对心脏的间接影响 ,评估创伤性眼心反射的临床意义。方法 回顾性分析 65 7例眼外伤住院患者的血压、脉博及部分心电图变化。结果 伤后 1小时内首次平均动脉压低于 70mmHg者 7例 ( 2 2 7% ) ( 1mmHg =0 13 3kPa) ;首次脉搏较基础频率减慢者 14例 ( 4 5 4% ) ,二者同步 1例。异常心电图 2 17例 ( 5 6 66% ) ,眼挫伤比眼烧伤发生异位心律失常明显增多 (P <0 0 5 ) ;窦性心动过缓 ,异位心律失常与ST -T异常心电图以 40岁以上年龄段多见 (P <0 0 5 )。结论 眼外伤导致血压下降甚微且与脉搏减慢无同步关系 ;心脏植物神经功能的稳定性受到伤情影响 ;窦性心动过缓、异位心律失常及ST -T异常发生与年龄段密切相关。应加强创伤性眼心反射的防治 ,注重 40岁以上年龄段  相似文献
7.
BACKGROUND: Mitochondrial DNA 5178 adenine/cytosine (mt5178 A/C) polymorphism has been reported to be associated with longevity in Japanese individuals, with experimental findings concluding that mt5178 A is an anti-atherogenic genotype. The aim of this study was to determine whether mt5178 A/C polymorphism influences intraocular pressure (IOP), and its relationship with the development of arteriosclerosis. METHODS: Four hundred and forty-nine male volunteers who had visited a general hospital for medical check-up between August 1999 and August 2000 were enrolled. Of these, 386 Japanese men who had not undergone any medical treatment for hypertension, ocular hypertension or glaucoma were selected as subjects of this study. After these subjects were genotyped, a cross-sectional study regarding the relationship between genotype and IOP was conducted. RESULTS: Mean IOP was significantly higher in men with mt5178 C (13.3 mmHg) than in those with mt5178 A (12.7 mmHg) (P = 0.037). This significant difference in mean IOP between the two genotypes remained evident after adjusting for age, body mass index, blood pressure, habitual smoking and habitual drinking. Interactions between mt5178 A/C polymorphism and habitual smoking or daily alcohol consumption with regard to IOP were observed. According to multiple regression analysis, habitual smoking was significantly associated with IOP in men with mt5178 A (P for trend = 0.020), while daily alcohol consumption was significantly associated with IOP in those with mt5178 C (P for trend = 0.021). CONCLUSION: Longevity-associated mitochondrial DNA 5178 A/C polymorphism may be associated with IOP in Japanese men.  相似文献
8.
Oculocardiac reflex caused by contact lenses   总被引:1,自引:0,他引:1  
PURPOSE: To report two cases of patients who fell unconscious because of the oculocardiac reflex when attempting to wear contact lenses. CASE REPORTS: Case 1: A 15-year-old healthy boy came to our clinic to be fitted with contact lenses. As soon as a hard contact lens was inserted forcibly, he became unconscious. Case 2: A 22-year-old man fell unconscious the instant that the eye was compressed with a hard contact lens. Neither patient had used glasses or contact lenses before. Their blood pressure was decreased while unconscious. They recovered consciousness after about 10 min, and nausea and vomiting settled subsequently. Contact lens insertion was tried again carefully after 1 week avoiding compression of the eyes and there were no problems. They are currently using contact lenses without any problems. CONCLUSION: Insertion of contact lenses may rarely provoke the oculocardiac reflex.  相似文献
9.
白内障超声乳化吸除术中血压升高的原因   总被引:1,自引:0,他引:1  
高潮  陈镇国  卢月丽 《眼科》2002,11(4):202-203
目的:分析白内障超声乳化吸除术中患者血压升高的原因。方法:100例白内障患者随机分为两组,各50例,手术时一组用局部注射麻醉法,另一组用表面麻醉法。通过监护仪监测此100例白内障超声乳化吸除术患者术中血压的变化情况。两组结果予以比较。结果:局麻组术中血压升高的发病率明显高于表麻组,血压升高主要发生在局部注射、上直肌固定、电凝这些疼痛明显的操作过程。结论:白内障超声乳化吸除术中患者血压升高主要原因是疼痛刺激。  相似文献
10.
This study aimed to assess the influence of age on intraocular pressure(IOP) in a general population. The Blue Mountains Eye Study assessed 3654 residents aged 49+ years during 1992-1994. Intraocular pressure was measured using Goldmann applanation tonometry. Subjects with glaucoma, those currently on glaucoma medications and those with a history of cataract surgery were excluded. The IOP was reliably measured in 3260 subjects. Mean IOP was 16.0 mmHg with no significant difference found between men and women (P < 0.89). In univariate analyses, age was positively associated with IOP (P < 0.05). Systolic blood pressure (SBP) was strongly positively associated with IOP (P < 0.001). After adjusting for SBP, there was a trend for IOP to decrease with increasing age(P < 0.051). After further adjusting for other potential confounders (diabetes, glaucoma family history and myopia), age was no longer significantly associated with intraocular pressure (P < 0.29). In summary,no evidence was found of an independent age affect on IOP.  相似文献
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