• 제목/요약/키워드: Peripheral blood pressure

검색결과 133건 처리시간 0.026초

U-Healthcare시스템을 위한 PPG의 피부표면의 온도변화보상 (Compensation of Skin Surface Temperature Variation on the PPG for the U-Healthcare System)

  • 염호준
    • 한국인터넷방송통신학회논문지
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    • 제11권6호
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    • pp.319-324
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    • 2011
  • 본 논문에서는 혈압과 광용적맥파, 국부피부온도변화에 따른 심혈관 파라메터의 통계적 변화와 관계에 대해 연구하였다. 국부피부온도변화는 Finometer의 혈압, 광용적맥파 그리고 총말초저항에 영향을 주었고 오실로메트릭 혈압, 심박수, 심박출량에는 영향을 주지 않는 결과를 얻었다. 그러므로 온도변화가 있는 환경에서 에러를 줄이기 위해 심혈관계의 상태를 광용적맥파로 평가하기위해서는 온도를 제어하거나 보상해 주어야 한다.

초음파 유화흡인술 후 발생된 난치성 동공 차단 녹내장의 수술적 치료 (Surgical Managements for Refractory Pupillary Block Glaucoma after Phacoemusification in a Dog)

  • 박영우
    • 한국임상수의학회지
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    • 제32권1호
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    • pp.130-134
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    • 2015
  • A 13-year-old, castrated male Yorkshire terrier was presented with acute blepharospasm 2 months after phacoemulsification with intraocular lens implantation in the left eye. Menace response was weakly positive in the left eye. Intraocular pressure (IOP) was 98 mmHg in the left eye. On ophthalmic examination using slit lamp biomicroscope, episcleral injection and corneal edema were observed in the left eye. Aqueous flare (1+) and iris bombe with peripheral anterior synechia were also detected in the left eye. In spite of medical treatments, IOP was remained more than 50 mmHg. Synechiolysis and radial iridectomy with irrigation/aspiration of anterior chamber were performed in the left eye. One week after the surgery, tissue plasminogen activator was injected to resolve the blood and fibrin clot in the left anterior chamber. Menace response was recovered completely 1 month after the surgery and IOP was maintained less than 20 mmHg more than 6 months.

Vasoactive Intestinal Peptide(VIP)의 백서신장기능(白鼠腎臟機能)에 미치는 영향(影響) (Effect of Vasoactive Intestinal Peptide on Renal Function in Rats)

  • 김선희;조경우
    • The Korean Journal of Physiology
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    • 제16권2호
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    • pp.159-163
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    • 1982
  • Vasoactive intestinal peptide (VIP) found in duodenal mucosa originally has been suggested as a neurotransmitter. Its localization, however, now known, is not limited to the gastrointestinal tract, but scattered at many different kinds of tissues, smooth muscles, endocrine gland and exocrine gland as well as central and peripheral neural tissues. To investigate the effect of VIP on renal function, an experiment has been done in anesthetized male rats. The results obtained were: 1) Urinary output and creatinine clearance decreased significantly during the period of infusion of VIP, 2.0ug/rat/7minutes. 2) Urinary excretion of sodium, potassium and chloride decreased but without significance by infusion of VIP. 3) Blood pressure, systolic and diastolic, decreased by VIP administered intravenously in the period of infusion. 4) Changes of urinary output, sodium and chloride excretion was correlated with changes of creatinine clearance. The above data suggest that VIP administered intravenously can suppress the renal hemodynamics indirectly, and also decrease electrolyte excretion through its renal hemodynamic change.

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Nurse Presence 프로그램이 산부인과 수술환자의 불안 및 생리적 지수에 미치는 효과 (Effects of Nurse Presence Program on Anxiety and Physiological Indicators in Patients with Gynecological Surgery)

  • 김윤정;조계화
    • Journal of Korean Biological Nursing Science
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    • 제16권4호
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    • pp.326-333
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    • 2014
  • Purpose: This study was to examine the effects of Nurse Presence (NP) program on anxiety and physiological indicators in patients with gynecological surgery. Methods: This study used a randomized control group pre-test, post-test design. The patients were 25-65 years old who had undergone gynecological surgery with general anesthesia. The subjects were divided into an experimental group (n=30) and the control group (n=30). SPSS 21.0 was used to analyze the data with Chi-square, Fisher's exact test, t-test, and one sample t-test. Results: The results show that there were significant differences in anxiety and heart rate and were no significant differences in systolic pressure or peripheral oxygen saturation of the experimental group which received the NP program. Conclusion: Nurse Presence program decreased pulse rate which is a physiological indicator by relieving the anxiety of the patients before gynecological surgery. Thus, this intervention is effective to relieve anxiety of the patients before gynecological surgery and should be utilized in clinics.

신경가동성에 대한 신경생물학과 신경생역학적 이해 (Neurobiology and Neurobiomechanics for Neural Mobilization)

  • 김재헌;육군창;배성수
    • The Journal of Korean Physical Therapy
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    • 제15권2호
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    • pp.67-74
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    • 2003
  • Nervous system is clinically important, and involved in most disorders directly or indirectly. It could be injury and be a source of symptoms. Injury of central or peripheral nervous system injury may affect that mechanism and interrupt normal function. An understanding of the concepts of axonal transport is important for physical therapist who treat injury of nerves. Three connective tissue layers are the endoneurium, perineurium, epineurium. Each has its own special structural characteristics and functional properties. The blood supply to the nervous system is well equipped in all dynamic and static postures with intrinsic and extrinsic vasculation. After nerve injury, alternations in the ionic compression or pressures within this environment may interfere with blood flow and, consequently conduction and the flow of axoplasm. The cytoskeleton are not static. On the contrary, elements of the cytoskeleton are dynamically regulated and are very likely in continual motion. It permits neural mobility. There are different axonal transport systems within a single axon, of which two main flows have been identified : First, anterograde transport system, Secondly, retrograde transport system. The nervous system adapts lengthening in two basic ways. The one is that the development of tension or increased pressure within the tissues, increased intradural pressure. The other is movements that are gross movement and movement occurring intraneurally between the connective tissues and the neural tissues. In this article, we emphasize the biologic aspects of nervous system that influenced by therapeutic approaches. Although identified scientific information in basic science is utilized at clinic, we would attain the more therapeutic effects and develop the physical therapy science.

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Acute Toxicity and General Pharmacological Action of QGC EXT

  • Lee, Jong-Mi;Im, Wi-Joon;Nam, Yoon-Jin;Oh, Kyung-Hoon;Lim, Jae-Chun;Whang, Wan-Kyunn;Sohn, Uy-Dong
    • The Korean Journal of Physiology and Pharmacology
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    • 제16권1호
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    • pp.49-57
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    • 2012
  • It has been shown that QGC isolated and purified from Rumecis folium found protective effects of gastritis and esophagitis which EXT is an ethanol extract of it. We examined acute toxicity and the general pharmacological action of QGC EXT to search for any side effects of it in rats, mice, guinea pigs, and cats. In a single dose toxicity study, QGC EXT didn't show toxicological effects in rats and mice, and the $LD_{50}$ was over 5 g/kg in both animals, and there were also no changes in weight, feed and water intake during these toxicological experimental periods. We examined the general pharmacological action on central controlled behavior responses, and peripheral organs including blood pressure, heart rate, respiration and gastrointestinal system, We found that there were no significant changes in body temperature, locomotors activity, stereotyped behaviors, sleeping time, and convulsion. In other studies, writhing reaction, normal body temperature, there did not appear to be any changes. The large intestine movement and electrical field stimulation-induced contraction was not changes by its EXT. In addition, the influences on blood pressure, heart rates, and respiration by QGC EXT were not found. These results indicate that QGC EXT may be very safe as a new drug, since its $LD_{50}$ was very high over 5 g/kg and any side effects were not found.

정기적인 찜질방노출이 청년과 노년 여성의 내한성에 미치는 영향 (The Effects of Regular Jjimjilbang Exposure on Cold Tolerance in Young and Elderly Females)

  • 최정화;송은영;황수경
    • 한국지역사회생활과학회지
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    • 제18권4호
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    • pp.599-607
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    • 2007
  • We analyzed the effects of regular Jjimjilbang (Korean sauna) exposure on the cold tolerance in young and elderly females. Subjects were young (n=7) and elderly (n=7) females who had never had Jjimjilbang exposure experience. The Jjimjil training group was exposured in the Jjimjilbang 19 times per week. Jjimjibang exposure was limited to three times per day. Jjimjil activity was taken freely. To prove the effects of the cold tolerance, subjects were exposed to cold air ($12{\pm}1^{\circ}C,\;60{\pm}10%$RH). In these conditions, subjects were exposed for 30 minutes at which time rectal temperature, skin temperatures, clothing microclimate, energy expenditure, blood pressure and subjective sensation were measured. To prove the effects of the local cold tolerance, vascular hunting reaction was observed measuring the finger skin temperature while the left middle finger tip was immersed in cold water of $0^{\circ}C$ for 30 minutes. The results are as follows. According to repeated Jjimjil exposure, rectal temperature changes, peripheral temperature and energy expenditure were increased gradually in the cold climate chamber. Blood pressure, subjective sensation and vascular hunting reactions did not show any significant difference. In conclusion, regular Jjimjilbang exposure has negative effects on the ability of the body to improve its regulation of temperature especially in cold tolerance.

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오가피(五加皮) Extract의 혈압강하작용(血壓降下作用)에 관(關)한 연구(硏究) (A Study on the Hypotensive Action of Acanthopanax Extract in Rabbit)

  • 고석태;김성원;임동윤
    • Journal of Pharmaceutical Investigation
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    • 제8권1호
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    • pp.6-16
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    • 1978
  • We obtained 4 kinds of extract fraction from Acanthopanacis Radicis Cortex and studied on the influence to the blood pressure of rabbit. These 4 fractions were obtained as follows; Fraction I was insoluble fraction by 99% ethanol from 80% methanol extract of Acanthopanacis Radicis Cortex, fraction II, precipitated fraction by ether from 99% ethanol soluble fraction of 80% methanol extract of Acanthopanaacis Radicis Cortex, fraction III, no precipitated fraction by ether from 99% ethanol soluble fraction of above 80% methanol extract and fraction IV, water extract of Acanthopanacis Radicis Cortex. All of fractions, when administered into ear-vein of rabbit, produced fall of blood pressure. Among these 4 fractions, although fraction III was not only the most potent but had the greatest efficacy, we observed the mechanism of hypotensive action of Acanthopanacis Radicis Cortex, making use of fraction II which was thought as a comparatively pure fraction. Hypotensive action of fraction II (APF II) was not affected by vagotominization but markedly inhibited by atropine. Pretreatment of bethanidine showed a tendency to weaken the depressor action of APF II, although it was not a significant result, but diphenhydramine did not influence APF II action. Phentolamine, guanethidine and chlorisondamine inhibited significantly the hypotensive action of APF II. APF II elicited the potentiation of norepinphrine pressor action dependent on the time-factor whereas it did not influence angiotesin pressor action. It is seemed that APF II exhibited hypotensive action, causing peripheral muscarinic-effect and centrally induced sympatholytic action.

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Discharge Patterns and Peripheral Nerve Inputs to Cardiovascular Neurons in the Medulla of Cats: Comparison between the lateral and medial medulla

  • Kim, Sang-Jeong;Lim, Won-Il;Park, Myoung-Kyu;Lee, Jin;Kim, Jun
    • The Korean Journal of Physiology
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    • 제28권2호
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    • pp.133-141
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    • 1994
  • The discharge patterns and peripheral nerve inputs to cardiovascular neurons were investigated in rostral ventrolateral medulla (RVLM) and raphe nucleus of cats. The data from the two were compared to determine their roles in cardiovascular regulation and the endogenous analgesic system. Animals were anesthetized with ${\alpha}-chloralose$ and single cell activities were recorded by carbon-filament microelectrode and their relationships with cardiovascular activity were analyzed. In RVLM area, a total of thirty-three cells were identified as cardiovascular neurons. During one cardiac cycle, the mean discharge rate of the neurons was $1.96{\pm}0.29$ and the peak activity was observed 45 ms after the systolic peak of arterial blood pressure. Thirteen cells could be activated antidromically by stimulation of the the $T_2$ intermediolateral nucleus. Forty-three raphe neurons were identified as cardiovascular neurons whose mean discharge rate during one cardiac cycle was $1.02{\pm}0.12$. None of these cells could be activated antidromically. Study of the interval time histogram of RVLM neurons revealed that the time to the first peak was $128{\pm}20.0\;ms$, being shorter than the period of a cardiac cycle. The same parameter found from the raphe neurons was $481{\pm}67.2\;ms$, which was much longer than the cardiac cycle length. Of seventeen RVLM neurons examined ten received only the peripheral $A{\delta}-afferent$ inputs, whereas six RVLM neurons received both $A{\delta}-$ and C-inputs; the remaining one cell received an inhibitory peripheral C-input. In contrast, nine of eleven raphe neurons were found to receive $A{\delta}-inputs$ only. We conclude that the main output of cardiovascular regulatory influences are mediated through the RVLM neurons. The cardiovascular neurons in the raphe nucleus appear to serve as interneurons transferring cardiovascular afferent information to the raphespinal neurons mediating the endogenous analgesic mechanisms.

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신생아에서 모세혈 가스분석 검사의 유용성 (Availability of Capillary Blood Gas Analysis in Neonate)

  • 정종태;윤수영;이란;현재호;정귀영
    • Clinical and Experimental Pediatrics
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    • 제45권4호
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    • pp.449-453
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    • 2002
  • 목 적 : 동맥혈 가스 분석은 신생아 집중 치료실에서 환아의 상태를 평가하기 위해 자주 시행하는 검사이나 제대 동맥 카테테르를 이용할 수 없는 경우에는 동맥 천자를 반복해야 되는데 기술적인 어려움과 위험성이 따르게 된다. 이에 저자들은 간편히 시행할 수 있는 모세혈 가스 분석 검사로 동맥혈 가스치를 추정하는 것이 타당성을 가지는지 조사하기 위해 이 연구를 시행하였다. 방 법: 2001년 4월부터 8월까지 방지거병원 신생아 집중 치료실에 입원하여 치료받은 환아 중 2주 이상된 신생아로서 동맥내 카테테르를 삽입하지 않은 상태에서 환기와 대사 상태 평가를 위해 혈액 가스 검사를 시행한 환아를 대상으로 하였다. 대상아들은 발뒤꿈치를 가온한 뒤 모세혈을 채혈하였고 곧 이어 동맥 천자를 시행하여 얻은 동맥혈과 함께 바로 검사실로 보내어 가스 분석하여 각 수치를 비교하였다. 결 과 : 1) 조사된 24명의 신생아의 재태 연령은 32-41주로 채혈은 모두 생후 2주일 이후에 시행되었다. 2) 모세혈과 동맥혈의 $pCO_2$, pH 사이에는 높은 상관 관계가 있었다(P<0.05). 3) 모세혈과 동맥혈의 $pO_2$ 사이에도 유의한 상관관계를 보였으나(P<0.05), 절대값의 차이는 92%에서 10 mmHg 이상이었다. 4) 모세혈과 동맥혈 가스의 상관 관계는 pH, $pCO_2$, $pO_2$의 순으로 유의하였다. 결 론 : 이상의 결과로 보아 동맥혈화된 말초혈액을 이용한 모세혈 가스 분석은 동맥혈 채혈이 어려운 경우에 유용한 대체 수단이 될 수 있을 것으로 생각된다.