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Heart sound

Jun Sugawara, Tsubasa Tomoto, Hirofumi Tanaka
As an initial step to better define heart-brachial pulse wave velocity (hbPWV), a novel measure of proximal aortic stiffness, we proposed and validated a simple formula to estimate the arterial path length (Lhb) for hbPWV. In 190 patients aged 19-79 years, the reference Lhb was measured by a three-dimensional MRI. Using multiple regression analysis and fivefold cross-validation, estimation formulae were created using age, sex, and height. hbPWV was calculated as Lhb divided by the time interval from the second heart sound to the dicrotic notch on the brachial pressure wave...
March 14, 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
Livio Provenzi, Sara Broso, Rosario Montirosso
Preterm infants are hospitalized in the Neonatal Intensive Care Unit (NICU) and are precociously separated from their mothers. Although developmental care interventions are meant to facilitate mother-infant bonding, physical contact is not always possible. Maternal voice exposure has been proposed as a way to foster maternal closeness and support postnatal bonding. Here we present a systematic review on maternal voice effects on preterm infants' development. Literature search occurred on 4 databases (PubMed, Scopus, Web of Science and CINAHL)...
March 10, 2018: Neuroscience and Biobehavioral Reviews
Dissanayake Mudiyanselage Priyantha Udaya Kumara Ralapanawa, Kulatunga Wijekoon Mudiyanselage Pramitha Prabhashini Kumarihamy, Miriyalini Sundararajah, Widana Arachchilage Thilak Ananda Jayalath
BACKGROUND: Eosinophilic myocarditis is one of the fatal complications of idiopathic hypereosinophilic syndromes. Given the rarity of this form of myocarditis, it is often under-recognized. We describe a young girl who presented with features of heart failure. To our knowledge, this is the first reported case of eosinophilic myocarditis in a young Sri Lankan female. CASE PRESENTATION: A previously healthy 21 year old Sri Lankan female admitted with shortness of breath for 1 week duration with associated low grade fever and profuse sweating...
March 9, 2018: BMC Research Notes
Hiroshi Sugiki, Kenji Sugiki
The authors have discussed the significance of the Morlet continuous wavelet transform of bileaflet mechanical heart valve (BLMHV) sound for detecting its malfunction: consecutive single patterns on the scalogram alway suggested its malfunction, whereas the tandem pattern with two steepled figures was demonstrated in both normal and malfunctioning valves. Therefore, authors have tried to distinguish this pattern between them by manually calculated multiple scalographic parameters. Although only the sum of wavelet coefficients (SWC) is supposed to be closer to valve sound property than other parameters, its calculation was not available in the original wavelet application...
March 6, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
Natalie G Ormshaw, Rehan T Junejo, Janice M Marshall
PURPOSE: Prevalence of cardiovascular disease (CVD) is greater in South Asians (SAs) than White Europeans (WEs). Endothelial dysfunction and blunted forearm vasodilatation to environmental stressors have been implicated in CVD. We investigated whether these features are present in young SA men. METHODS: In 15 SA and 16 WE men (19-23 years), we compared changes in forearm blood flow, arterial blood pressure (ABP), forearm vascular conductance (FVC), heart rate, and electrodermal resistance (EDR; sweating) following release of arterial occlusion (reactive hyperaemia endothelium-dependent) and 5 single sounds at 5-10 min intervals (stressors)...
March 3, 2018: European Journal of Applied Physiology
Md Shahidul Islam
It is important to understand the rationale for appropriate use of different diuretics, alone or in combination, in different heart failure patients, under diverse clinical settings. Clinicians and nurses engaged in heart failure care, must be familiar with different diuretics, their appropriate doses, methods of administration, monitoring of the responses, and the side-effects. Inappropriate use of diuretics, both under-treatment and overtreatment, and poor follow-up can lead to failures, and adverse outcomes...
March 3, 2018: Advances in Experimental Medicine and Biology
Si-Hyuck Kang, Byunggill Joe, Yeonyee Yoon, Goo-Yeong Cho, Insik Shin, Jung-Won Suh
BACKGROUND: Cardiac auscultation is a cost-effective, noninvasive screening tool that can provide information about cardiovascular hemodynamics and disease. However, with advances in imaging and laboratory tests, the importance of cardiac auscultation is less appreciated in clinical practice. The widespread use of smartphones provides opportunities for nonmedical expert users to perform self-examination before hospital visits. OBJECTIVE: The objective of our study was to assess the feasibility of cardiac auscultation using smartphones with no add-on devices for use at the prehospital stage...
February 28, 2018: JMIR MHealth and UHealth
Harris Héritier, Danielle Vienneau, Maria Foraster, Ikenna C Eze, Emmanuel Schaffner, Laurie Thiesse, Franziska Ruzdik, Manuel Habermacher, Micha Köpfli, Reto Pieren, Arno Schmidt-Trucksäss, Mark Brink, Christian Cajochen, Jean Marc Wunderli, Nicole Probst-Hensch, Martin Röösli
BACKGROUND: Most epidemiological noise studies consider 24 h average noise exposure levels. Our aim was to exploratively analyze the impact of noise exposure at different time windows during day and night on cardiovascular mortality. METHODS: We generated Switzerland-wide exposure models for road traffic, railway and aircraft noise for different time windows for the year 2001. Combined noise source equivalent continuous sound levels (Leq ) for different time windows at the most exposed façade were assigned to each of the 4...
February 17, 2018: International Journal of Hygiene and Environmental Health
Peter J Neumann, Richard J Willke, Louis P Garrison
Concerns about rising spending on prescription drugs and other areas of health care have led to multiple initiatives in the United States designed to measure and communicate the value of pharmaceuticals and other technologies for decision making. In this section we introduce the work of the International Society for Pharmacoeconomics and Outcomes Research Special Task Force on US Value Assessment Frameworks formed to review relevant perspectives and appropriate approaches and methods to support the definition and use of high-quality value frameworks...
February 2018: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
Kerstin Buchholz, Patrick Liebl, Christian Keinki, Natalie Herth, Jutta Huebner
BACKGROUND: Sounds and acoustic stimuli can have an effect on human beings. In medical care, sounds are often used as parts of therapies, e. g., in different types of music therapies. Also, human speech greatly affects the mental status. Although calming sounds and music are widely established in the medical field, clear evidence for the effect of sounds in palliative care is scare, and data about effects of the human voice in general are still missing. Thus, the aim of this study was to evaluate the effects of different voice stimuli on palliative patients...
February 19, 2018: Wiener Medizinische Wochenschrift
Chih-Ping Chen, Tsang-Ming Ko, Liang-Kai Wang, Schu-Rern Chern, Peih-Shan Wu, Shin-Wen Chen, Shih-Ting Lai, Tzu-Yun Chuang, Chien-Wen Yang, Chen-Chi Lee, Wayseen Wang
OBJECTIVE: We present prenatal diagnosis and molecular cytogenetic characterization of 17p13.3 microdeletion encompassing YWHAE and CRK but not PAFAH1B1 in a fetus without ultrasound abnormalities. CASE REPORT: A 33-year-old woman underwent amniocentesis at 17 weeks of gestation because of a family history of spinocerebellar atrophy in the husband. Amniocentesis revealed a karyotype of 46,XX. Simultaneously array comparative genomic hybridization (aCGH) analysis (using 60,000 probes) revealed a 0...
February 2018: Taiwanese Journal of Obstetrics & Gynecology
Lyall Glait, Weiwen Fan, Gina Stillitano, Sharon Sandridge, Nadia Pilati, Charles Large, Giuseppe Alvaro, James A Kaltenbach
The purpose of this study was to test whether a Kv3 potassium channel modulator, AUT00063, has therapeutic potential for reversing noise-induced increases in spontaneous neural activity, a state that is widely believed to underlie noise-induced tinnitus. Recordings were conducted in noise exposed and control hamsters from dorsal cochlear nucleus (DCN) fusiform cells before and following intraperitoneal administration of AUT00063 (30 mg/kg). Fusiform cell spontaneous activity was increased in sound-exposed animals, approximating levels that were nearly 50% above those of controls...
February 7, 2018: Hearing Research
Ankit Mittal, Animesh Ray, Ram Manohar Talupula, Rita Sood
A 50-year-old woman presented with progressive dyspnoea and oedema with rapid deterioration over the last few days. Clinical examination revealed hypotension with cold clammy skin, raised jugular venous pressure and muffled heart sounds and was diagnosed to have cardiac tamponade, later confirmed on two-dimensional echocardiography. However, patient had bradycardia, and the other striking examination findings were coarse facies with pallor, madarosis, absent axillary and pubic hair and breast atrophy. Her blood sugar level was also low...
February 3, 2018: BMJ Case Reports
Xin-Yi Liu, Ya-Ting Huang, Min-Yu Lai, John Chen, Tung-Wei Chu, Pei-Kwei Tsay, Chih-Chung Shiao
BACKGROUND: Cardiogenic pulmonary edema (CPE) is a life-threatening emergency necessitating aggressive management. We conducted this study to test the hypothesis that a combination of N-terminal pro-b-type natriuretic peptide (NT-pro-BNP) and some relevant clinical factors may provide better predictability for CPE in heart failure (HF) patients. METHODS: This retrospective study enrolled adult HF patients hospitalized during January 2011 to December 2013. After determining the independent predictors for the occurrence of CPE, a novel NT-pro BNP-based diagnostic score for predicting CPE was established...
February 20, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
Arneh Babakhani, Robert N Clapp, William B Warner
A 25-year-old man, who was an active duty US Navy sailor, went to his ship's medical department complaining of a mild cough that he'd had for 2 days. He denied having any fevers, chills, night sweats, angina, or dyspnea. He said he hadn't experienced any exertional fatigue or difficulty completing the rigorous physical tasks of his occupation as an engineman on the ship. The patient had no medical or surgical history of significance, and he wasn't taking any medications or supplements. On exam, he was not in acute distress and his vital signs were within normal limits...
February 2018: Journal of Family Practice
Daniel M Shindler
The Valsalva maneuver should be incorporated into the routine of auscultation even when a murmur is absent. Valsalva release affects the second heart sound. It is particularly helpful during detailed, non-perfunctory auscultation in patients with bundle branch block.
2018: Cardiology
Xue Yu, Na Jia, Sanxia Ye, Min Zhou, Deping Liu
Primary chylopericardium (CP) is a rare clinical condition in which chylous fluid containing high concentrations of triglyceride accumulates in the pericardial cavity. The present study reports a case of CP that was successfully treated by reconstruction surgery of thoracic duct. To improve the ability to diagnosis and treat this rare disease, the current study also systematically extracted 104 reported cases of primary or idiopathic CP from the past 60 years (January 1950 to December of 2015), and reviewed the clinical manifestation, etiology, diagnosis and treatment of these cases...
January 2018: Experimental and Therapeutic Medicine
Matteo Spano, Davide Zuliani, Andrea Peano, Walter Bertazzolo
A 3-year-old female mixed-breed dog was referred with a 2-day history of serious dyspnea, coughing, lethargy, anorexia, and a low-grade right anterior lameness. At presentation, the dog had an increased respiratory rate, dull heart and lung sounds, and cyanotic mucous membranes. It was hyperthermic and slightly dehydrated. Laboratory findings showed mild neutrophilia with a left shift, while serum biochemistry variables were in the normal range. However, urinalysis revealed mild proteinuria and rare erythrocytes and leukocytes on sediment examination...
January 25, 2018: Veterinary Clinical Pathology
H M Fahad, M Usman Ghani Khan, Tanzila Saba, Amjad Rehman, Sajid Iqbal
Auscultation of heart dispenses identification of the cardiac valves. An electronic stethoscope is used for the acquisition of heart murmurs that is further classified into normal or abnormal murmurs. The process of heart sound segmentation involves discrete wavelet transform to obtain individual components of the heart signal and its separation into systole and diastole intervals. This research presents a novel scheme to develop a semi-automatic cardiac valve disorder diagnosis system. Accordingly, features are extracted using wavelet transform and spectral analysis of input signals...
January 23, 2018: Microscopy Research and Technique
Dilek Küçük Alemdar, Fatma Güdücü Tüfekcİ
AIM: This study aimed to evaluate the effects of providing prerecorded maternal heart sounds on the level of pain and comfort that are experienced by preterm infants during aspiration. METHODS: This was a randomized controlled trial. Preterm infants (N = 62) who were receiving care or treatment at a neonatal intensive care unit were eligible for participation in this study. Infants in the intervention group (n = 32) were provided with prerecorded maternal heart sounds before, during, and after aspiration, whereas the infants in the control group (n = 30) received routine care...
January 17, 2018: Japan Journal of Nursing Science: JJNS
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