keyword
MENU ▼
Read by QxMD icon Read
search

Pressor

keyword
https://www.readbyqxmd.com/read/28429696/polymorphic-ventricular-tachycardia-due-to-variant-angina-diagnosed-on-holter-monitoring-and-confirmed-with-cold-pressor-test
#1
Semi Öztürk, Tuğba Aktemur, Muhsin Kalyoncuoğlu, Gündüz Durmuş, Mehmet Can
A 52-year-old man complaining of persistent recurring chest pain at night underwent coronary angiogram at another institution. Normal coronaries were observed and he was discharged with muscle spasmolytic prescription. Since symptoms had continued, 24-hour Holter monitoring was ordered at our facility and results revealed huge ST elevation and polymorphic ventricular tachycardia. Cold pressor test performed in catheterization laboratory also resulted in ventricular tachycardia. Nifedipine was prescribed and follow-up Holter monitoring revealed no further vasospastic episodes...
April 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28428931/the-role-of-renal-proximal-tubule-transport-in-the-regulation-of-blood-pressure
#2
REVIEW
Shoko Horita, Motonobu Nakamura, Masashi Suzuki, Nobuhiko Satoh, Atsushi Suzuki, Yukio Homma, Masaomi Nangaku
The electrogenic sodium/bicarbonate cotransporter 1 (NBCe1) on the basolateral side of the renal proximal tubule plays a pivotal role in systemic acid-base homeostasis. Mutations in the gene encoding NBCe1 cause severe proximal renal tubular acidosis accompanied by other extrarenal symptoms. The proximal tubule reabsorbs most of the sodium filtered in the glomerulus, contributing to the regulation of plasma volume and blood pressure. NBCe1 and other sodium transporters in the proximal tubule are regulated by hormones, such as angiotensin II and insulin...
March 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28426557/loop-ileostomy-vs-total-colectomy-as-surgical-treatment-for-clostridium-difficile-associated-disease-an-eastern-association-for-the-surgery-of-trauma-multicenter-trial
#3
Paula Ferrada, Rachael Callcut, Martin D Zielinski, Brandon Bruns, Daniel Dante Yeh, Tanya L Zakrison, Jonathan P Meizoso, Babak Sarani, Richard D Catalano, Peter Kim, Valerie Plant, Amelia Pasley, Linda A Dultz, Asad J Choudhry, Elliott R Haut
OBJECTIVES: The mortality of patients with Clostridum Dificile Associated Disease (CDAD) requiring surgery continues to be very high. Loop ileostomy (LI) was introduced as an alternative procedure to total colectomy (TC) for CDAD by a single center study. To date, no reproducible results have been published. The objective of this study is to compare these two procedures in a multicentric approach to help the surgeon decide what procedure is best suited for the patient in need. METHODS: This was a retrospective multicenter study conducted under the sponsorship of the Eastern Association for the Surgery of Trauma (EAST)...
April 20, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28421648/placebo-like-analgesia-via-response-imagery
#4
K J Peerdeman, A I M van Laarhoven, D J P Bartels, M L Peters, A W M Evers
BACKGROUND: Placebo effects on pain are reliably observed in the literature. A core mechanism of these effects is response expectancies. Response expectancies can be formed by instructions, prior experiences and observation of others. Whether mental imagery of a response can also induce placebo-like expectancy effects on pain has not yet been studied systematically. METHODS: In Study 1, 80 healthy participants were randomly allocated to (i) response imagery or (ii) control imagery...
April 19, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28421141/excess-of-aminopeptidase-a-in-the-brain-elevates-blood-pressure-via-the-angiotensin-ii-type-1-and-bradykinin-b2-receptors-without-dipsogenic-effect
#5
Takuto Nakamura, Masanobu Yamazato, Akio Ishida, Yusuke Ohya
Aminopeptidase A (APA) cleaves angiotensin (Ang) II, kallidin, and other related peptides. In the brain, it activates the renin angiotensin system and causes hypertension. Limited data are available on the dipsogenic effect of APA and pressor effect of degraded peptides of APA such as bradykinin. Wistar-Kyoto rats received intracerebroventricular (icv) APA in a conscious, unrestrained state after pretreatment with (i) vehicle, (ii) 80 μg of telmisartan, an Ang II type-1 (AT1) receptor blocker, (iii) 800 nmol of amastatin, an aminopeptidase inhibitor, and (iv) 1 nmol of HOE-140, a bradykinin B2 receptor blocker...
2017: International Journal of Hypertension
https://www.readbyqxmd.com/read/28420008/c-reactive-protein-and-cold-pressor-tolerance-in-the-general-population-the-troms%C3%A3-study
#6
Elina Iordanova Schistad, Audun Stubhaug, Anne-Sofie Furberg, Bo Lars Engdahl, Christopher Sivert Nielsen
The aim of this study was to examine whether increases in severity of subclinical inflammation, measured by high-sensitivity C-reactive protein (hs-CRP), increased experimental pain sensitivity, measured by cold-pressor tolerance, and to test whether this relationship is independent of chronic pain. A large population-based study from 2007 to 2008, the sixth Tromsø Study, provided data from 12,981 participants. For the present analysis, complete data for 10,274 participants (age: median 58 years) were available...
March 31, 2017: Pain
https://www.readbyqxmd.com/read/28419822/inhibitory-effects-of-losartan-and-azelnidipine-on-augmentation-of-blood-pressure-variability-induced-by-angiotensin-ii-in-rats
#7
Danfeng Jiang, Yukiko Kawagoe, Kenji Kuwasako, Kazuo Kitamura, Johji Kato
Increased blood pressure variability has been shown to be associated with cardiovascular morbidity and mortality. Recently we reported that continuous infusion of angiotensin II not only elevated blood pressure level, but also increased blood pressure variability in a manner assumed to be independent of blood pressure elevation in rats. In the present study, the effects of the angiotensin type I receptor blocker losartan and the calcium channel blocker azelnidipine on angiotensin II-induced blood pressure variability were examined and compared with that of the vasodilator hydralazine in rats...
April 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28419227/neural-programmatic-role-of-leptin-tnf%C3%AE-melanocortin-and-glutamate-in-blood-pressure-regulation-versus-obesity-related-hypertension-in-male-c57bl-6-mice
#8
Bin Yu, Dongsheng Cai
Continuous nutritional surplus sets the stage for hypertension development. While moderate dietary obesity in mice is normotensive, the homeostatic balance is disrupted concurrent with an increased risk of hypertension, but it remains unclear how the obesity-associated pre-hypertensive state is converted into overt hypertension. Here, using mice with high-fat-diet (HFD) feeding-induced moderate obesity vs. control-diet (CD) feeding lean mice, we comparatively studied the effects of central leptin and TNFα as well as the involvement of the neuropeptide melanocortin pathway versus the neurotransmitter glutamate pathway...
April 13, 2017: Endocrinology
https://www.readbyqxmd.com/read/28414673/purulent-pericarditis-due-to-an-infected-pacemaker-lead
#9
Teresa Backes
INTRODUCTION: Intravenous drug users have a substantially increased risk of infective endocarditis, especially in the setting of implanted cardiac devices. Purulent pericarditis is a rare occurrence that can occur iatrogenically or through direct or hematogenous spread. CASE DESCRIPTION: A 75 year old man with a past medical history significant for hepatitis C, IV drug abuse, and sick sinus syndrome status post pacemaker was brought in by EMS with a chief complaint of diaphoresis and chest pain...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28413280/comparison-of-sevoflurane-and-propofol-for-laryngeal-mask-airway-insertion-and-pressor-response-in-patients-undergoing-gynecological-procedures
#10
Shirishkumar Gulabrao Chavan, Surita Mandhyan, Sandhya Haridas Gujar, Gourish Prakash Shinde
BACKGROUND AND AIMS: A popular method of providing anesthesia for laryngeal mask airway (LMA) insertion is with the use of propofol. However, bolus propofol has been associated with adverse effects such as hypotension, apnea and pain on injection. Hence, time is needed to search an alternative. We aimed to compare the induction characteristics, ease of LMA insertion, hemodynamic changes and complications with inhalation of 8% sevoflurane vital capacity breath and propofol. MATERIAL AND METHODS: A prospective randomized study of 60 American Society of Anesthesiologists' Grade I and II patients was conducted and distributed among two groups with 30 each undergoing gynecological procedures under general anesthesia...
January 2017: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28406863/fluid-overload-and-kidney-injury-score-a-multidimensional-real-time-assessment-of-renal-disease-burden-in-the-critically-ill-patient
#11
Ayse Akcan-Arikan, Daniel J Gebhard, Megan A Arnold, Laura L Loftis, Curtis E Kennedy
OBJECTIVE: Interruptive acute kidney injury alerts are reported to decrease acute kidney injury-related mortality in adults. Critically ill children have multiple acute kidney injury risk factors; although recognition has improved due to standardized definitions, subtle changes in serum creatinine make acute kidney injury recognition challenging. Age and body habitus variability prevent a uniform maximum threshold of creatinine. Exposure of nephrotoxic medications is common but not accounted for in kidney injury scores...
April 12, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28398965/a-novel-approach-in-combined-liver-and-kidney-transplantation-with-long-term-outcomes
#12
Burcin Ekser, Richard S Mangus, W Fridell, Chandrashekhar A Kubal, Shunji Nagai, Sandra B Kinsella, Demetria R Bayt, Teresa M Bell, John A Powelson, William C Goggins, A Joseph Tector
OBJECTIVE: The aim of this study was to compare the outcomes of simultaneous and delayed implantation of kidney grafts in combined liver-kidney transplantation (CLKT). BACKGROUND DATA: Delayed function of the renal graft (DGF), which can result from hypotension and pressor use related to the liver transplantation (LT), may cause worse outcomes in CLKT. METHODS: A total of 130 CLKTs were performed at Indiana University between 2002 and 2015 and studied in an observational cohort study...
May 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28397384/characteristics-and-effectiveness-of-vasodilatory-and-pressor-compensation-for-reduced-relaxation-time-during-rhythmic-forearm-contractions
#13
Robert F Bentley, Veronica J Poitras, Terrence Hong, Michael E Tschakovsky
During muscle contraction in rhythmic exercise muscle blood flow is significantly impeded by microvascular compression. The purpose of this study was to establish the nature and magnitude of vasodilatory and/or pressor compensatory responses during forearm exercise in the face of an increased duration of mechanical microvascular compression, and whether the effectiveness of such compensation was exercise intensity dependent. Seven healthy males (21.0 ± 1.8 yrs) completed progressive forearm exercise (24...
April 10, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28393896/effects-of-ibudilast-on-the-subjective-reinforcing-and-analgesic-effects-of-oxycodone-in-recently-detoxified-adults-with-opioid-dependence
#14
Verena E Metz, Jermaine D Jones, Jeanne Manubay, Maria Sullivan, Shanthi Mogali, Andrew Segoshi, Gabriela Madera, Kirk W Johnson, Sandra D Comer
Ibudilast, a non-selective phosphodiesterase inhibitor, is used clinically in Asia for the treatment of asthma and post-stroke dizziness. Recent preclinical studies have suggested that it also inhibits glial cell activation in rodents, and may alter opioid-mediated effects, including analgesia and withdrawal symptoms. The effects of ibudilast on the abuse potential of opioids in humans are largely unknown. The present study was designed to examine the influence of ibudilast on subjective (including drug craving), reinforcing, and analgesic effects of oxycodone in human volunteers diagnosed with opioid dependence (equivalent to moderate-severe opioid use disorder)...
April 10, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28393630/pain-perception-and-cardiovascular-system-response-among-athletes-playing-contact-sports
#15
Katarzyna Leźnicka, Matthias Pawlak, Monika Białecka, Krzysztof Safranow, Paweł Cięszczyk
The aim of this study was to determine whether the contact sports change the perception of pain as assessed by the cold pressor test (CPT), and if the test induces the same reaction of the cardiovascular system in contact athletes and non-athletes. The study involved 321 healthy men; 140 contact athletes and 181 students of the University of Szczecin (control). Pain threshold and pain tolerance were evaluated using CPT. Cardiovascular measurements were made during CPT. The contact athletes showed a much higher tolerance to pain than the control group (median time 120 vs...
April 10, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28386576/functional-near-infrared-spectroscopy-study-on-tonic-pain-activation-by-cold-pressor-test
#16
Zeinab Barati, Issa Zakeri, Kambiz Pourrezaei
Functional near-infrared spectroscopy (fNIRS) has recently been suggested for monitoring cortical hemodynamic response to experimental and clinical acute pain. However, the hemodynamic response to a tonic, noxious cold stimulus, and its relation with subjective pain sensation is not fully characterized. We investigated the relationship between pain threshold and tolerance and the evoked hemodynamic response to cold pressor tests (CPTs) at varying intensities and explored the gender effect. Twenty-one healthy individuals (10 males and 11 females) performed four CPTs at 1°C, 5°C, 10°C, and 15°C...
January 2017: Neurophotonics
https://www.readbyqxmd.com/read/28385914/sympathetic-nervous-system-activation-reduces-contraction-induced-rapid-vasodilation-in-the-leg-of-humans-independent-of-age
#17
William E Hughes, Nicholas T Kruse, Darren P Casey
Contraction-induced rapid vasodilation is attenuated similarly in the upper and lower limbs of older adults. In the forearm, this attenuation is in part due to a greater sympathetic vasoconstriction. We examined whether the age-related reduction in contraction-induced vasodilation in the leg is also due to a sympathetic vasoconstrictive mechanism. Thirteen young (24±1yr) and twelve older adults (67±1yr) performed single leg knee-extension at 20% and 40% of work-rate maximum (WRmax) during control and cold-pressor test (CPT) conditions...
April 6, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28381455/2015-ludwig-lecture-abnormal-cardiovascular-responses-to-exercise-in-hypertension-contribution-of-neural-factors
#18
Jere Holloway Mitchell
During both dynamic (e.g. endurance) and static (e.g. strength) exercise there are exaggerated cardiovascular responses in hypertension. This includes greater increases in blood pressure, heart rate, and efferent sympathetic nerve activity than in normals. Two of the known neural factors which contribute to this abnormal cardiovascular response are the exercise pressor reflex (EPR) and functional sympatholysis. The EPR originates in contracting skeletal muscle and reflexly increases sympathetic efferent nerve activity to the heart and blood vessels as well as decreases parasympathetic efferent nerve activity to the heart...
April 5, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28369936/the-role-played-by-oxidative-stress-in-evoking-the-exercise-pressor-reflex-in-health-and-simulated-peripheral-artery-disease
#19
Jonathan E Harms, J Matthew Kuczmarski, Joyce Kim, Gail D Thomas, Marc P Kaufman
Contraction of muscle evokes the exercise pressor reflex (EPR), which is expressed partly by increases in heart rate and arterial pressure. Patients with peripheral artery disease (PAD) show an exaggerated EPR, sometimes report pain when walking and are at risk for cardiac arrthymias. Previous research suggested that reactive oxygen species (ROS) mediate the exaggerated EPR associated with PAD. To examine the effects of ROS on the EPR, we infused a superoxide scavenger, tiron, into the superficial epigastric artery of decerebrated rats...
March 28, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28364029/intact-blood-pressure-but-not-sympathetic-responsiveness-to-sympathoexcitatory-stimuli-in-a-patient-with-unilateral-carotid-body-resection
#20
Kathryn F Larson, Jacqueline K Limberg, Sarah E Baker, Michael J Joyner, Timothy B Curry
Despite rapidly growing interest in the therapeutic resection of the carotid body (CB) chemoreceptors, few physiologic studies exist on the consequences of unilateral CB resection. We present a case of an otherwise healthy postmenopausal female who underwent unilateral CB resection for a paraganglioma. Approximately 4 years postoperatively, she underwent analysis of her sympathetic and hemodynamic responses to hypoxia, lower body negative pressure, cold pressor test (CPT), and ischemic hand grip exercise and postexercise ischemia (IHE/PEI)...
April 2017: Physiological Reports
keyword
keyword
70596
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"