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"Vagal Stimulation" OR "Vagal Maneuver" OR "Valsalva Maneuver" OR "Carotid Sinus Massage"

Cheng Feng, Tingting Luo, Yongfang Luo, Ningbo Zhao, Kun Huang, Chang Xiao
OBJECTIVE: To investigate the detection rate of patent foramen ovale-right to left shunt (PFO-RLS) and/or pulmonary-right to left shunt (P-RLS) via contrast-enhanced transthoracic echocardiography (c-TTE) in healthy participants, patients suffering from cryptogenic stroke and migraine with aura. METHODS: Initially, 20 healthy volunteers, 21 cases with cryptogenic stroke, and 18 cases with migraine aura were randomly selected, and all of them received c-TTE and transesophageal echocardiography (TEE) examinations...
April 27, 2018: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
Stephen A Klassen, Jacqueline K Limberg, Sarah E Baker, Wayne T Nicholson, Timothy B Curry, Michael J Joyner, J Kevin Shoemaker
KEY POINTS SUMMARY: The mechanisms affecting recruitment patterns of postganglionic sympathetic nerves remain unclear. The divergent and convergent preganglionic innervation patterns of postganglionic neurons, and presence of differently-sized postganglionic nerves, suggest that the ganglia may participate in modifying the discharge patterns of single sympathetic postganglionic neurons innervating the skeletal muscle circulation. Whether the ganglia affect the ordered behaviour of varying sized postganglionic sympathetic neurons in humans has not been studied...
July 28, 2018: Journal of Physiology
Meirav Braverman, Ixora Kamisan Atan, Friyan Turel, Talia Friedman, Hans Peter Dietz
OBJECTIVES: Translabial ultrasound (US) imaging is an emerging method for the evaluation of pelvic organ prolapse (POP). Normative data to date are limited to imaging in the supine position. The purpose of this study was to evaluate the effect of posture changes on US pelvic organ mobility. METHODS: This work was a retrospective study of 175 women seen in a tertiary urogynecologic center for symptoms of lower urinary tract and pelvic floor dysfunction. All underwent a standardized interview, POP quantification prolapse assessment, and 4-dimensional translabial US examination in supine and standing positions...
July 19, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
A Catalán Griffiths, F Alfagueme Roldán, I Salgüero Fernández, M G Ragusa
No abstract text is available yet for this article.
June 30, 2018: Actas Dermo-sifiliográficas
Na Li, Can Cui, Yue Cheng, Yanhong Wu, Jianzhong Yin, Wen Shen
Objective: The study aimed to evaluate the contributions of levator ani muscle (LAM) injury, vesical neck movement, urethral length and mobility, and urethral sphincter dysfunction observed on magnetic resonance imaging (MRI) towards stress urinary incontinence (SUI) after vaginal delivery. Materials and Methods: Fifty primiparous women after 6 months of delivery (15 with SUI and 35 without) and 35 nulliparous as continent controls underwent MRI at rest and Valsalva maneuver...
July 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
Bertrand Gachon, Antoine Nordez, Fabrice Pierre, Laetitia Fradet, Xavier Fritel, David Desseauve
INTRODUCTION AND HYPOTHESIS: We hypothesized that shear wave elastography (SWE) technology might be useful for assessing the elastic properties of the pelvic floor in women. Our primary objective was to evaluate the feasibility of assessing the levator ani muscles using SWE in women. Our secondary aim was to investigate the changes in their elastic properties from rest to Valsalva maneuver. METHODS: During this prospective feasibility study in nonpregnant female volunteers, we collected data on participant age, body mass index (BMI), parity, and time since the delivery...
June 30, 2018: International Urogynecology Journal
Ozbek Damla, Cincin Altug, Kahraman Koytak Pinar, Kepez Alper, Ince Gunal Dilek, Agan Kadriye
BACKGROUND: Multiple sclerosis can cause cardiovascular autonomic dysfunction. It is assumed that is caused by multiple demyelinating plaques localized in the brain stem and spinal cord. Previous studies have determined this using tilt table test, heart rate responses to Valsalva maneuver and deep breathing and heart rate variability analysis with 24 h Holter monitoring. However there is not a consensus regarding the presence of the relationship between autonomic dysfunction and severity of multiple sclerosis, type of multiple sclerosis and expanded disability status scale...
June 19, 2018: Multiple Sclerosis and related Disorders
Giulia Rivasi, Martina Rafanelli, Andrea Ungar
Thirty years ago Tilt Testing (TT) was described as a tool in the diagnostic work-up of vasovagal syncope; after its initial success, some flaws have become evident. The concept of hypotensive susceptibility has provided the test a new relevance, shifting from diagnosis only, to therapeutic management. Carotid Sinus Massage (CSM) was introduced at the beginning of the XX century; the technique has evolved over years, whereas the concept of carotid sinus syndrome (CSS) has remained unchanged and uncontested for more than half a century...
May 1, 2018: American Journal of Cardiology
Kayla L Moses, McKayla Seymour, Arij Beshish, Kim R Baker, David F Pegelow, Luke J Lamers, Marlowe W Eldridge, Melissa L Bates
A patent foramen ovale (PFO) is linked to increased risk of decompression illness in divers. One theory is that venous gas emboli crossing the PFO can be minimized by avoiding lifting, straining and Valsalva maneuvers. Alternatively, we hypothesized that mild increases in external inspiratory and expiratory resistance, similar to that provided by a SCUBA regulator, recruit the PFO. Nine healthy adults with a Valsalva-proven PFO completed three randomized trials (inspiratory, expiratory, and combined external loading) with six levels of increasing external resistance (2-20 cmH2 O/L/sec)...
June 2018: Physiological Reports
Guillermo E Liniado, Martín A Beck, Graciela M Gimeno, Ana L González, Tomás F Cianciulli, Gustavo G Castiello, Juan A Gagliardi
Congestion in heart failure patients with reduced ejection fraction (HFrEF) is relevant and closely linked to the clinical course. Bedside blood pressure measurement during the Valsalva maneuver (Val) added to clinical examination may improve the assessment of congestion when compared to NT-proBNP levels and left atrial pressure (LAP) estimation by Doppler echocardiography, as surrogate markers of congestion in HFrEF. A clinical examination, LAP and blood tests were performed in 69 HFrEF ambulatory patients with left ventricular ejection fraction ≤ 40% and sinus rhythm...
2018: Medicina
Nicole Del Gaudio, Geraldo Vaz, Thierry Duprez, Christian Raftopoulos
OBJECTIVE: Chiari malformation type I is typified by the downward herniation of the cerebellar tonsils through the foramen magnum, which can impede cerebrospinal fluid circulation and may lead to syringomyelia. The usual symptoms of this condition are neck pain and posterior headaches on Valsalva maneuver. Different surgical procedures have been described for cranio-cervical decompression (CCD), without a consensus being reached about the best suited technique. The primary end point of this study was to compare efficacy and complications rate of CCD using dural peeling (DPe) versus duraplasty (DP)...
June 19, 2018: World Neurosurgery
Jessica J Voerman, Mary E Hoffe, Sam Surka, Paulo M Alves
BACKGROUND: Supraventricular tachycardia (SVT) is a common presenting arrhythmia in the general population. Cases of SVT presenting during commercial air travel are always challenging as they might be confused with other conditions requiring different treatment strategies. We present a case of an in-flight SVT that was successfully managed using telemedicine support. CASE REPORT: A 33-yr-old woman developed chest pain and dizziness while on an international commercial flight...
July 1, 2018: Aerospace Medicine and Human Performance
A Sakai, K Okami, K Ebisumoto, H Yamamoto, K Saito, D Maki, H Furuya, M Iida
No abstract text is available yet for this article.
June 19, 2018: Clinical Otolaryngology
Jung Ju Han, Jung Mee Park, Dong Kee Kim, So Young Park, Shi Nae Park
OBJECTIVE: This pilot study was performed to investigate the therapeutic effect of Valsalva maneuver on otitis media in adults and to evaluate the prognostic factors for the good response. METHODS: Thirty nine ears of 32 adult patients who were diagnosed as otitis media with effusion and managed by one-week Valsalva maneuver (>20/day) without any other medication were included in this study. Its therapeutic efficacy was evaluated and the prognostic factors which predict the response of Valsalva maneuver were analyzed by comparing various clinical and audiological factors between success and failure groups...
June 15, 2018: Auris, Nasus, Larynx
Hida Nierenburg, Katelin Jackfert
PURPOSE OF REVIEW: Headaches due to airplane travel are rare but documented in the literature. We aim to provide a review of diagnostic criteria and treatment for this condition. RECENT FINDINGS: Several cases of this syndrome have been reported since it was first described in 2004. Airplane headache is classified as unilateral, stabbing, orbito-frontal pain, lasting under 30 min, and occurs during ascent or descent of a plane. Patients with this condition can develop anxiety and fear of flying given the intensity and severity of the pain...
June 14, 2018: Current Pain and Headache Reports
Jacquie R Baker, Justin R Paturel, Kurt Kimpinski
PURPOSE: Neurogenic orthostatic hypotension (NOH), is a cardinal feature of autonomic dysfunction. The cortical autonomic network (CAN) is a network of brain regions associated with autonomic function. Therefore, our objective was to investigate whether impairment of CAN structures is involved in the pathophysiology of NOH. METHODS: Fifteen controls (63±13 years) and fifteen NOH patients (67±6 years; p=0.2) with peripheral autonomic dysfunction completed standard tests of parasympathetic [Deep Breathing (DB)] and sympathetic [Valsalva maneuver (VM)] activation during a functional MRI...
June 14, 2018: Journal of Applied Physiology
Manish Saxena, Tariq Shour, Mussadiq Shah, Christopher B Wolff, Peter O O Julu, Vikas Kapil, David J Collier, Fu Liang Ng, Ajay Gupta, Armida Balawon, Jane Pheby, Anne Zak, Gurvinder Rull, Benjamin O'Brien, Roland E Schmieder, Melvin D Lobo
BACKGROUND: Renal denervation has no validated marker of procedural success. We hypothesized that successful renal denervation would reduce renal sympathetic nerve signaling demonstrated by attenuation of α-1-adrenoceptor-mediated autotransfusion during the Valsalva maneuver. METHODS AND RESULTS: In this substudy of the Wave IV Study: Phase II Randomized Sham Controlled Study of Renal Denervation for Subjects With Uncontrolled Hypertension, we enrolled 23 subjects with resistant hypertension...
June 12, 2018: Journal of the American Heart Association
Giulia Rivasi, Diana Solari, Martina Rafanelli, Alice Ceccofiglio, Francesca Tesi, Richard Sutton, Michele Brignole, Andrea Ungar
BACKGROUND: Cardiac pacing is the treatment of choice for cardioinhibitory carotid sinus syndrome (CSS), but syncope recurrence occurs in up to 20% of patients within 3 years. The present study aims at assessing incidence and identifying predictors of syncope recurrence in patients receiving pacing therapy for CSS. METHODS: The Syncope Clinics of two large regional hospitals in Northern Italy, both following European Syncope Guidelines, combined to perform this study...
September 1, 2018: International Journal of Cardiology
Sanjeet S Grewal, Andrea C Adams, Jamie J Van Gompel
INTRODUCTION: Hiccups are common and typically resolve spontaneously. However, in rare cases, they can continue for days, weeks or even years, causing significant morbidity and discomfort in patients. In the setting of intractable hiccups, vagal nerve stimulation has been reported in two cases. OBJECTIVES: This is a case report and review of the literature regarding the use of vagal nerve stimulators for intractable hiccups. Specifically, this report highlights a case where this therapy was not effective, as two prior case reports have reported positive results...
July 3, 2018: International Journal of Neuroscience
S Teng, Z Ren, K Zhao
BACKGROUND: Ranolazine is generally used to treat anginal symptoms for patients with symptomatic chronic stable angina pectoris. By improving ischemiareperfusion, ranolazine is also observed to have protective effects on myocardial ischemic injury in animal models. It is noteworthy to find interventions that can decrease adverse effects of this drug and thereby increase its clinical application. METHODS: In this report, we used a rat model of chronic ischemic heart failure (CHF) to examine if vagal stimulation can strengthen the effects of ranolazine on worsened cardiac function in CHF...
2018: Current Molecular Medicine
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