Side-Effects of Rinsing Fluids on the Rat Femoral Artery

1997 ◽  
Vol 22 (5) ◽  
pp. 568-573 ◽  
Author(s):  
O. DELAERE ◽  
U. MENNEN ◽  
W. VAN HEERDEN ◽  
E. RAUBENHEIMER ◽  
A. M. WIESE ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Side Effects ◽  
Femoral Artery ◽  
Normal Saline ◽  
Vessel Wall ◽  
Experimental Conditions ◽  
Femoral Arteries ◽  
Heparinized Saline ◽  
Significant Difference ◽  
Ringer’S Lactate

Rinsing rat femoral arteries with various fluids in experimental conditions similar to those in clinical practice was found to have deleterious effects on the intimal and medial layers of the vessels. No statistically significant difference was found between the effects of Ringer’s lactate and normal saline. Heparinized saline produced significantly less damage to the medial layer and less platelet cell deposition. Lignocaine 2% was found to be extremely damaging to the whole vessel wall, and highly thrombogenic. Nevertheless, all the arteries in each group remained patent 4 days after rinsing.

Simulated microgravity effects on the rat carotid and femoral arteries: role of contractile protein expression and mechanical properties of the vessel wall

2007 ◽  
Vol 102 (4) ◽  
pp. 1595-1603 ◽  
Author(s):  
Sunup Hwang ◽  
Stanislav A. Shelkovnikov ◽  
Ralph E. Purdy
Keyword(s):  
Carotid Artery ◽  
Protein Expression ◽  
Femoral Artery ◽  
Vessel Wall ◽  
Male Rats ◽  
Force Analysis ◽  
Western Blots ◽  
Active Length ◽  
Femoral Arteries ◽  
Protein Levels

The goal of this study was to determine the effects of microgravity on myofilament protein expression and both passive and active length-force relationships in carotid and femoral arteries. Microgravity was simulated by 20-day hindlimb unweighting (HU) in Wistar male rats, and carotid and femoral artery segments were isolated from both HU and control (CTL) rats for Western blot and length-force analysis. Western blots revealed that HU significantly decreased myosin light chain-20 (MLC-20) protein levels in both carotid and femoral arteries and decreased myosin heavy chain (MHC) in femoral artery. α-Actin levels were not altered by HU treatment in either artery. Length-force analysis demonstrated that HU did not change either passive or active length-force relationships in the femoral artery. HU-treated arterial rings developed significantly less force to 100 mM K+ than CTL, but optimal lengths were identical. In the carotid artery, length-active force curves were identical for both CTL and HU; however the length-passive force curve for HU-treated rings exhibited a steeper slope than CTL, suggesting decreased compliance of the artery wall. In conclusion, our data suggest that the HU-induced decreases in both MLC-20 and MHC in femoral artery are responsible for the decreased contraction to 100 mM K+ in HU-treated femoral artery rings. In the carotid artery, the HU-induced decrease in vessel wall compliance may counter any decrease in contractility caused by the decreased MLC-20 levels.

Histological Changes in the Rat Femoral Artery Following the Use of the Empty-and-Refill Test

2018 ◽  
Vol 34 (04) ◽  
pp. 270-276
Author(s):  
Alexandra Naides ◽  
Roberto Noland ◽  
Jiajie Lu ◽  
Yelena Akelina ◽  
Charles Marboe ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Femoral Artery ◽  
Internal Control ◽  
Cell Loss ◽  
Cell Number ◽  
Femoral Arteries ◽  
Significant Difference ◽  
Vessel Patency ◽  
Almost All ◽  
And Control

Background This study examines the effects of the empty-and-refill patency test on rat femoral arteries in the longer postoperative time period. Methods A simple arterial anastomosis was performed bilaterally on 20 rats. The empty-and-refill test was performed unilaterally in all rats, leaving the contralateral artery as an internal control. Rats were divided into two cohorts of 10 rats and survived for 48 hours and 2 weeks. Vessel patency was assessed prior to closing and immediately prior to sacrifice. The femoral arteries were harvested bilaterally and hematoxylin and eosin stains were performed. The femoral artery distal to the anastomosis in the region of the empty-and-refill test was histologically evaluated. Results All vessels were patent at the time of sacrifice. There was no statistical difference in the numeric scoring between the experimental and control vessels in the 48-hour cohort. Almost all vessels harvested at 48 hours showed endothelial cell loss distal to the anastomosis regardless of whether they underwent the empty-and-refill test. The only statistically significant difference in the 2-week cohort was an increase in adventitial smooth muscle proliferation in the experimental group. There were no other statistically significant results between the experimental and control groups at 2 weeks. An overall comparison of both cohorts revealed a statistically significant increase in endothelial cell number and intimal proliferation by 2 weeks postsurgery. Conclusion The empty-and-refill test does not compromise rat femoral artery anastomotic patency, nor does it produce histological damage either 48 hours or 2 weeks postsurgery.

scholarly journals Analgesic efficacy of intravenous nefopam after spine surgery: a randomized, double-blind, placebo-controlled trial

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 516
Author(s):  
Jatuporn Eiamcharoenwit ◽  
Haruthai Chotisukarat ◽  
Kanjana Tainil ◽  
Nalinrat Attanath ◽  
Phuping Akavipat
Keyword(s):  
Side Effects ◽  
Spine Surgery ◽  
Normal Saline ◽  
Controlled Trial ◽  
Opioid Analgesic ◽  
Analgesic Efficacy ◽  
Morphine Consumption ◽  
Surgical Incision ◽  
Significant Difference ◽  
Postoperative Morphine

Background: The incidence of moderate to severe pain is high among patients undergoing spinal surgery. Nefopam can be used as an adjuvant analgesic postoperatively after spine surgery. The study aimed to assess the analgesic efficacy and side effects of nefopam on 24-hour postoperative morphine consumption after spine surgery. Methods: The study is a randomized, double-blinded, placebo-controlled trial. A total of 96 patients were randomized into 4 treatment groups, 24 each. In group 1, patients received normal saline before surgical incision and before the end of surgery. In group 2, patients received 30 mg nefopam before surgical incision and normal saline before the end of surgery. In group 3, patients received normal saline before surgical incision and 30 mg of nefopam before the end of surgery. In group 4, patients received 30 mg of nefopam in both timings. Patient-controlled analgesia morphine was used for the postoperative period. Outcomes were to determine 24-hour morphine consumption and incidence of side effects.  Results: Of 96 patients enrolled, 21 in placebo-placebo, 22 in nefopam-placebo, 22 in placebo-nefopam and 21 in nefopam-nefopam groups completed the study. Analysis of the Kruskal-Wallis test shows no significant difference in 24-hour postoperative morphine consumption between four groups, which were 18 [IQR 13.5-29], 20 [IQR 11-28.3], 17 [IQR 11.5-28.5], 13 [IQR 8.5-18.5] mg., respectively (p = 0.223).  Incidence of side effects, including tachycardia, sedation, sweating and nausea/ vomiting, did not differ. Conclusions: Adding perioperative nefopam to opioid analgesic does not improve analgesic efficacy in patients who underwent spine surgery. Registration: Thai Clinical Trials Registry ID TCTR20171115001; registered on 15 November 2017.

scholarly journals Second- and Further-Line Therapy with Erlotinib in Patients with Advanced Non-Small-Cell Lung Cancer in Daily Clinical Practice

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Josephine Krainhöfer ◽  
Mario Walther ◽  
Matthias Steinert ◽  
Angelika Reissig
Keyword(s):  
Lung Cancer ◽  
Clinical Practice ◽  
Side Effects ◽  
Small Cell Lung Cancer ◽  
Cell Lung Cancer ◽  
Small Cell ◽  
Second Line ◽  
Small Cell Lung ◽  
Line Therapy ◽  
Significant Difference

Introduction. The aim of this retrospective study was to examine effect of erlotinib in patients with advanced non-small cell lung cancer (NSCLC) in second-line and further therapy in daily clinical practice.Methods. Patients with histologically or cytologically proven NSCLC (n=84) treated with erlotinib in second-line (n=34), third-line (n=36), and more-line therapy (n=14) were examined for progression-free survival (PFS), overall survival (OS), disease control rate (DCR), duration of therapy, and adverse effects.Results. Median PFS of all lines was 83 days (CI 70.0–96.0), OS was 7 months (CI 4.7–9.3), DCR was 66.2% (CI 55–77%), and 1-year survival rate was 33% (CI 22–43%), with no significant difference between therapy lines. Median duration of treatment was 76 days (IQR 39–139.5). Patients with epidermal growth factor receptor mutation (EGFR-M) reached the highest PFS (204 days), as did patients with good performance status (ECOG 0-1: 94 versus ECOG 2-3: 65 days,P=0.035). Patients with EGFR-M also revealed a DCR of 100%. The most frequent side effects were rash (69%) and diarrhoea (41%), without any significant difference between therapy lines. In 24 patients, the treatment dose was reduced and in 18, the therapy was paused.Conclusion. Erlotinib works in all therapy lines without any significant differences in efficacy and side effects.

scholarly journals Analgesic efficacy of intravenous nefopam after spine surgery: a randomized, double-blind, placebo-controlled trial

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 516
Author(s):  
Jatuporn Eiamcharoenwit ◽  
Haruthai Chotisukarat ◽  
Kanjana Tainil ◽  
Nalinrat Attanath ◽  
Phuping Akavipat
Keyword(s):  
Side Effects ◽  
Spine Surgery ◽  
Normal Saline ◽  
Controlled Trial ◽  
Opioid Analgesic ◽  
Analgesic Efficacy ◽  
Morphine Consumption ◽  
Surgical Incision ◽  
Significant Difference ◽  
Postoperative Morphine

Background: The incidence of moderate to severe pain is high among patients undergoing spinal surgery. Nefopam can be used as an adjuvant analgesic postoperatively after spine surgery. The study aimed to assess the analgesic efficacy and side effects of nefopam on 24-hour postoperative morphine consumption after spine surgery. Methods: The study is a randomized, double-blinded, placebo-controlled trial. A total of 96 patients were randomized into 4 treatment groups, 24 each. In group 1, patients received normal saline before surgical incision and before the end of surgery. In group 2, patients received 30 mg nefopam before surgical incision and normal saline before the end of surgery. In group 3, patients received normal saline before surgical incision and 30 mg of nefopam before the end of surgery. In group 4, patients received 30 mg of nefopam in both timings. Patient-controlled analgesia morphine was used for the postoperative period. Outcomes were to determine 24-hour morphine consumption and incidence of side effects.  Results: Of 96 patients enrolled, 21 in placebo-placebo, 22 in nefopam-placebo, 22 in placebo-nefopam and 21 in nefopam-nefopam groups completed the study.  Analysis of the Kruskal-Wallis test on the intention-to-treat basis shows no significant difference in 24-hour postoperative morphine consumption between four groups, which were 18 [IQR 13.5-29], 20 [IQR 11-28.3], 17 [IQR 11.5-28.5], 13 [IQR 8.5-18.5] mg., respectively (p = 0.223). Incidence of side effects, including tachycardia, sedation, sweating and nausea/ vomiting, did not differ. Conclusions: Adding perioperative nefopam to opioid analgesic does not improve analgesic efficacy in patients who underwent spine surgery. Registration: Thai Clinical Trials Registry ID TCTR20171115001; registered on 15 November 2017.

scholarly journals Thermos Ability in Maintaining Crystalloid Liquid Temperature (Ringer’s Lactate and Normal Saline 0,9%): an Alternative in Maintaining Resuscitation Fluid Temperature

2013 ◽  
Vol 9 (2) ◽  
pp. 187-195
Author(s):  
Ninda Saputri ◽  
◽  
Abdurrahman Wahid ◽  
Tina Handayani Nasution ◽  
Gia Eka Negara
Keyword(s):  
Normal Saline ◽  
Haemorrhagic Shock ◽  
Fluid Temperature ◽  
Ringer Lactate ◽  
Temperature Changes ◽  
Significant Difference ◽  
Resuscitation Fluid ◽  
Ringer’S Lactate ◽  
Infusion Fluid

Haemorrhagic shock should be treated with fluid therapy at 390°C to avoid hypothermia. Storage of infusion fluid in a rice thermos is one method to maintain the temperature of the infusion fluid. This study aimed to determine the effect of using a thermos to maintain a temperature of 390C crystalloid liquid (ringer lactate and normal saline 0,9%) at a room temperature of 250C. This research method uses experimental quantitative (pre-experimental) with a one-shot case study design. Six bottles of Ringer's lactate and six bottles of normal saline 0,9% were warmed to 390C, then stored in a rice thermos at 250C and the temperature changes were measured for 6 hours. A digital thermometer was used to take measurements. The Mann-Whitney test was used to analyze the data. The results show that the temperature of Ringer's lactate fluid was reduced by an average of 4,60C, and normal saline was reduced by an average of 4,30C. There was a significant difference in temperature changes in the ringer's lactate fluid and normal saline 0,9% (p=0,000;α=0,05). The results of the study were that the rice thermos was able to maintain the temperature of ringer's lactate fluid at 390C for 96 minutes and normal saline 0,9% for 78 minutes, while to prevent hypothermia (360C) ringer's lactate fluid for 4 hours 59 minutes and normal saline 0,9 % for 4 hours 55 minutes.

scholarly journals Transcatheter aortic valve replacement using the iSleeve expandable sheath in small femoral arteries

Open Heart ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. e001703
Author(s):  
Natalie Glaser ◽  
Crochan J. O'Sullivan ◽  
Nawzad Saleh ◽  
Dinos Verouhis ◽  
Magnus Settergren ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Aortic Valve Replacement ◽  
Valve Replacement ◽  
Femoral Artery ◽  
Transcatheter Aortic Valve Replacement ◽  
Vascular Complications ◽  
Bleeding Complications ◽  
Femoral Arteries ◽  
Transcatheter Aortic Valve ◽  
Significant Difference

BackgroundSmall femoral arteries have been associated with a higher risk of vascular complications in transfemoral transcatheter aortic valve replacement (TAVR). We investigated the feasibility and safety of TAVR in patients with small femoral arteries.MethodsIn this observational study, we included 82 patients who underwent transfemoral TAVR with the ACURATE neo system using the expandable 14F iSleeve sheath between 2018 and 2019 at Karolinska University Hospital, Sweden. Of these, 41 patients had a minimal femoral artery diameter of ≥5.5 mm (mean 6.5, range 5.5–9.2), and 41 patients had a minimal femoral artery diameter <5.5 mm (mean 4.9, range 3.9–5.4).ResultsThere was no significant difference in major vascular and bleeding complications between the small femoral artery group (7%) and the normal femoral artery group (2%) (p=0.62). The total of major and minor vascular complications did not differ significantly according to femoral artery size (17% vs 5%) (p=0.16). The iSleeve sheath was not correlated with any of the complications. The use of the iSleeve sheath was unsuccessful in four patients (5%), of which one patient had a small femoral artery diameter.ConclusionTransfemoral TAVR with the ACURATE neo system using the iSleeve sheath is a promising method for patients with small femoral arteries even though we found a trend towards higher rates of complications in these patients. The use of expandable sheaths may expand the spectrum of patients that can be treated with transfemoral TAVR, and thus may improve the prognosis in patients with severe aortic valve stenosis.

Relevance Predictability in Information Retrieval Systems

1967 ◽  
Vol 06 (02) ◽  
pp. 45-51 ◽  
Author(s):  
A. Kent ◽  
J. Belzer ◽  
M. Kuhfeerst ◽  
E. D. Dym ◽  
D. L. Shirey ◽  
...  
Keyword(s):  
Information Retrieval ◽  
Experimental Conditions ◽  
Treatment Groups ◽  
Retrieval Systems ◽  
Significant Difference ◽  
Information Retrieval Systems ◽  
High Predictability ◽  
Intermediate Response ◽  
Quantitative Indicators ◽  
Level Of Processing

An experiment is described which attempts to derive quantitative indicators regarding the potential relevance predictability of the intermediate stimuli used to represent documents in information retrieval systems. In effect, since the decision to peruse an entire document is often predicated upon the examination of one »level of processing« of the document (e.g., the citation and/or abstract), it became interesting to analyze the properties of what constitutes »relevance«. However, prior to such an analysis, an even more elementary step had to be made, namely, to determine what portions of a document should be examined.An evaluation of the ability of intermediate response products (IRPs), functioning as cues to the information content of full documents, to predict the relevance determination that would be subsequently made on these documents by motivated users of information retrieval systems, was made under controlled experimental conditions. The hypothesis that there might be other intermediate response products (selected extracts from the document, i.e., first paragraph, last paragraph, and the combination of first and last paragraph), that would be as representative of the full document as the traditional IRPs (citation and abstract) was tested systematically. The results showed that:1. there is no significant difference among the several IRP treatment groups on the number of cue evaluations of relevancy which match the subsequent user relevancy decision on the document;2. first and last paragraph combinations have consistently predicted relevancy to a higher degree than the other IRPs;3. abstracts were undistinguished as predictors; and4. the apparent high predictability rating for citations was not substantive.Some of these results are quite different than would be expected from previous work with unmotivated subjects.

Current uses of intracranial vessel wall imaging for clinical practice: a high-resolution MR technique recently available

2020 ◽  
Vol 78 (10) ◽  
pp. 642-650
Author(s):  
Felipe Torres PACHECO ◽  
Luiz Celso Hygino da CRUZ JUNIOR ◽  
Igor Gomes PADILHA ◽  
Renato Hoffmann NUNES ◽  
Antônio Carlos Martins MAIA JUNIOR ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Vessel Wall ◽  
Vascular Diseases ◽  
Vascular Wall ◽  
Vessel Wall Imaging ◽  
Clinical Settings ◽  
Direct Evaluation ◽  
Intracranial Vessel ◽  
Indirect Evaluation ◽  
Wall Imaging

ABSTRACT Intracranial vessel wall imaging plays an increasing role in diagnosing intracranial vascular diseases. With the growing demand and subsequent increased use of this technique in clinical practice, radiologists and neurologists should be aware of the choices in imaging parameters and how they affect image quality, clinical indications, methods of assessment, and limitations in the interpretation of these images. Due to the improvement of the MRI techniques, the possibility of accurate and direct evaluation of the abnormalities in the arterial vascular wall (vessel wall imaging) has evolved, adding substantial data to diagnosis when compared to the indirect evaluation based on conventional flow analyses. Herein, the authors proposed a comprehensive approach of this technique reinforcing appropriated clinical settings to better use intracranial vessel wall imaging.

Effects of Virgin Coconut Oil as Adjunct Therapy in the Treatment of Allergic Rhinitis

2016 ◽  
Vol 1 (1) ◽  
pp. 22
Author(s):  
Nazli Zainuddin ◽  
Nurul Azira Mohd Shah ◽  
Rosdan Salim
Keyword(s):  
Allergic Rhinitis ◽  
Side Effects ◽  
Coconut Oil ◽  
Test Group ◽  
Nasal Symptom ◽  
Control Group ◽  
Virgin Coconut Oil ◽  
Control Groups ◽  
Significant Difference ◽  
And Control

Introduction: The role of virgin coconut oil in the treatment of allergic rhinitis is controversial. Thus, the aim of the present study is to determine the effects of virgin coconut oil ingestion, in addition to standard medications, on allergic rhinitis. We also studied the side effects of consumption of virgin coconut oil. Methods: Fifty two subjects were equally divided into test and control groups. All subjects received a daily dose of 10mg of loratadine for 28 days. The test group was given 10ml of virgin coconut oil three times a day in addition to loratadine. The symptoms of allergic rhinitis were scored at the beginning and end of the study. Results:, the symptom score were divided into nasal and non-nasal symptom scores. Sneezing score showed a significant difference, however the score was more in control group than test group, indicating that improvement in symptom was more in control group. The rest of the nasal symptom and non-nasal symptom score showed no significant difference between test and control groups. Approximately 58% of the test subjects developed side effects from consumption of virgin coconut oil, mainly gastrointestinal side effects. Conclusion: In the present study, ingestion of virgin coconut oil does not improve the overall and individual symptoms of allergic rhinitis, furthermore it has side effects.

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