Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Lior Dayan is active.

Publication


Featured researches published by Lior Dayan.


Military Medicine | 2008

Complications Associated with Prolonged Tourniquet Application on the Battlefield

Lior Dayan; Chaim Zinmann; Shalom Stahl; Doron Norman

The use of a tourniquet to control bleeding is a necessity in both surgical and prehospital settings. Tourniquet application, if performed properly, can be a lifesaving procedure, particularly in a traumatic setting such as the battlefield. A tourniquet is easily applied and requires the use of a relatively uncomplicated piece of equipment. However, improper or prolonged placement of a tourniquet because of poor medical training can lead to serious injuries, such as nerve paralysis and limb ischemia. Here we present five case reports of improper tourniquet applications on the battlefield that resulted in nerve damage. We conclude that there is a need for improved training among medical personnel in the use of tourniquets, as well as a need for an adjustable-pressure, commercial-type sphygmomanometer cuff with a large surface area that is appropriate for application to all limbs parts. We also recommend that, in cases requiring the use of a tourniquet, the caregiver remove the tourniquet every 2 hours and assess the bleeding; if the bleeding has stopped, then the tourniquet should be replaced with a pressure bandage to minimize tissue damage.


Techniques in Hand & Upper Extremity Surgery | 2009

Use of a new exsanguination tourniquet in internal fixation of distal radius fractures.

Doron Norman; Inbal Greenfield; Nabil Ghrayeb; Eli Peled; Lior Dayan

We describe our experience using a new device that results in a bloodless field in open repair of distal radius fractures. The device, an exsanguinating tourniquet (HemaClear model/40, OHK Medical Devices, Haifa, Israel), replaces the traditional methods of limb elevation, Esmarch bandaging, pneumatic tourniquet pressurizing and the associated components. HemaClear/40 is an elastic silicon ring with a tubular elastic sleeve rolled onto it. The device has attached straps that, when pulled, unroll the sleeve, rolling the ring mesially on the limb. The pressure exerted by rolling HemaClear/40 is supra-systolic thereby exsanguinating the limb and occluding the arterial inflow. Our experience in 49 patients demonstrated quick application, superior exsanguination and that the device could be placed on the forearm instead of the upper arm. No side effects or complications were noted. In our opinion, the fact that HemaClear/40 is a sterile, single-patient device makes it superior over the traditional technology.


The Spine Journal | 2009

Long-standing, neglected sacroiliitis with remarked sacro-iliac degenerative changes as a result of Brucella spp. infection

Lior Dayan; Sergei Deyev; Lucio Palma; Nimrod Rozen

BACKGROUND Osteoarticular disease is universally the most common complication of brucellosis. Sacro-iliac joint (SIJ) is the most frequent osteoarticular location of involvement. Sacroiliitis (SI) usually is associated with acute form of the disease, thus frank SIJ destruction caused by brucellosis is rare. PURPOSE To report the case of a patient suffering from severe, prolonged lumbar pain with sciatica, refractory to medical treatment, in which the correct and misdiagnosed cause of her pain was a long-standing, neglected brucellar SI. STUDY DESIGN Case report. METHODS Scintigraphy and imaging methods (computed tomography, magnetic resonance imaging). RESULTS The result of the delayed diagnosis was a pronounced degeneration of the SIJ. CONCLUSIONS Sacroiliitis as a result of infection with Brucella might cause severe joint degeneration if left untreated.


Journal of PeriAnesthesia Nursing | 2018

Postoperative Pain Management Among Native and Non-native Israeli Citizens—Data From the European PAIN-OUT Registry

Silviu Brill; Haggai Sharon; Anat Yafe; Shoshana Hazan; Lior Dayan

Purpose It has been widely reported that minority groups receive inferior emergency pain management. We aimed to determine whether this is true in the postoperative setting, as effective postoperative analgesia is an essential component of high quality medical care. Design A retrospective case‐control study of paired 248 postsurgical Israeli patients. Methods Data were gathered from the European Unions “PAIN‐OUT” registry. Quality of care measures, composite pain score, composite side effect score, and composite emotional score were analyzed. Findings Composite pain, side effect, and emotional scores were significantly higher among natives compared with non‐natives. Opioid consumption did not differ between the two groups. Conclusions In this study, immigration status was not a predictor of inferior postoperative analgesia. In contrast, non‐natives benefited more from analgesic care. We suggest this stems from differing patient expectations and attitudes toward pain management between the groups, with higher expectations for analgesia on the part of native patients accounting for these observations.


Frontiers in Physiology | 2018

Cardiovascular Autonomic Profile in Women With Premenstrual Syndrome

Rimma Koifman; Lior Dayan; Jacob N. Ablin; Giris Jacob

Introduction: The premenstrual syndrome (PMS) is a constellation of somatic and psychogenic symptoms that appear during late luteal (LL) phase of the menstrual cycle. Since many symptoms could be related to the autonomic nervous system, we hypothesized that the sympathetic nervous system is perturbed in PMS. Methods: The cardiovascular autonomic profile of nine women with PMS (30.4 ± 2.5 years) were compared to that of nine healthy controls (30 ± 2.5 years) during their early follicular (EF) and LL phases of the menstrual cycle. Plasma norepinephrine (NE) concentrations, power spectral analysis of heart rate and systolic blood pressure (BP), and baroreflex sensitivity (BRS) were assessed during recumbency and a head-up tilt (HUT). Cardiovascular responsiveness to α1- and β-adrenoreceptor agonists (phenylephrine and isoproterenol, respectively) were also assessed. Results: In the LL phase, the plasma NE concentrations in women with PMS during recumbency and a HUT were lower than those in women without PMS [180 ± 30 vs. 320 ± 50 pg/ml; p = 0.04 (recumbent), and 480 ± 70 vs. 940 ± 180 pg/ml: p = 0.02 (HUT)]. In the LL phase, the dose of phenylephrine required to increase systolic BP by 15 mmHg in women with PMS was significantly greater than that in women without PMS (202 ± 30 μg vs. 138 ± 20 μg; p = 0.02). Sympathetic and vagal cardiac control indices were comparable in the two groups in the menstrual phases. In women with PMS, the value of LFSBP in the LL phase was lower than that in the EF phase (0.98 ± 0.2 vs. 1.77 ± 0.4 mmHg2, p = 0.04). The increase in LFSBP in women with PMS in the LL phase during HUT was greater than that in the controls, 5.2 ± 0.9 vs. 3.1 ± 0.5 mmHg2, p = 0.045, and this increase was associated with a significant decrease in BRS. Conclusion: In women with PMS without psychogenic symptoms, the sympathetic control of their circulation is not dominant during the LL phase of their menstrual cycle.


American Journal of Physiology-regulatory Integrative and Comparative Physiology | 2007

Effect of aging on the cardiovascular regulatory systems in healthy women

Shahar Lavi; Ori Nevo; Israel Thaler; Rimma Rosenfeld; Lior Dayan; Nir Hirshoren; Lior Gepstein; Giris Jacob


The Journal of Rheumatology | 2008

Exaggerated Vasoconstriction in Complex Regional Pain Syndrome-1 Is Associated with Impaired Resistance Artery Endothelial Function and Local Vascular Reflexes

Lior Dayan; Sergei Salman; Doron Norman; Jean-Jacque Vatine; Edward Calif; Giris Jacob


The Spine Journal | 2007

Aspergillus vertebral osteomyelitis in chronic leukocyte leukemia patient diagnosed by a novel panfungal polymerase chain reaction method

Lior Dayan; Hannah Sprecher; Amos Hananni; Hana Rosenbaum; Victor Milloul; Ilana Oren


Clinical Autonomic Research | 2016

Is adenosine a modulator of peripheral vasoconstrictor responses

Lior Dayan; Silviu Brill; Uri Hochberg; Giris Jacob


Journal of Orthopaedic Surgery and Research | 2008

SPECT/CT-plethysmography - non-invasive quantitation of bone and soft tissue blood flow

Lior Dayan; Zohar Keidar; Ora Israel; Victor Milloul; Johnathan Sachs; Giris Jacob

Collaboration


Dive into the Lior Dayan's collaboration.

Top Co-Authors

Avatar

Giris Jacob

Technion – Israel Institute of Technology

View shared research outputs
Top Co-Authors

Avatar

Silviu Brill

Tel Aviv Sourasky Medical Center

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Israel Thaler

Technion – Israel Institute of Technology

View shared research outputs
Top Co-Authors

Avatar

Nir Hirshoren

Technion – Israel Institute of Technology

View shared research outputs
Top Co-Authors

Avatar

Rimma Rosenfeld

Technion – Israel Institute of Technology

View shared research outputs
Top Co-Authors

Avatar

Shahar Lavi

Technion – Israel Institute of Technology

View shared research outputs
Top Co-Authors

Avatar

Victor Milloul

Rambam Health Care Campus

View shared research outputs
Top Co-Authors

Avatar

Ori Nevo

Mount Sinai Hospital

View shared research outputs
Top Co-Authors

Avatar

Doron Norman

Technion – Israel Institute of Technology

View shared research outputs
Researchain Logo
Decentralizing Knowledge