Impact of Supplementing a Backgrounding Diet with Nonprotein Nitrogen on In Vitro Methane Production, Nutrient Digestibility, and Steer Performance.

Two experiments were conducted to evaluate the effect of nonprotein nitrogen (NPN) supplementation on in vitro fermentation and animal performance using a backgrounding diet. In experiment 1, incubations were conducted on three separate days (replicates). Treatments were control (CTL, without NPN), urea (U), urea-biuret (UB), and urea-biuret-nitrate (UBN) mixtures. Except for control, treatments were isonitrogenous using 1% U inclusion as a reference. Ruminal fluid was collected from two Angus-crossbred steers fed a backgrounding diet plus 100 g of a UBN mixture for at least 35 d. The concentration of volatile fatty acids (VFA) and ammonia nitrogen (NH3-N), in vitro organic matter digestibility (IVOMD), and total gas and methane (CH4) production were determined at 24 h of incubation. In experiment 2, 72 Angus-crossbred yearling steers (303 ±â€…29 kg of body weight [BW]) were stratified by BW and randomly allocated in nine pens (eight animals/pen and three pens/treatment). Steers consumed a backgrounding diet formulated to match the diet used in the in vitro fermentation experiment. Treatments were U, UB, and UBN and were isonitrogenous using 1% U inclusion as a reference. Steers were adapted to the NPN supplementation for 17 d. Then, digestibility evaluation was performed after 13 d of full NPN supplementation for 4 d using 36 steers (12 steers/treatment). After that, steer performance was evaluated for 56 d (24 steers/treatment). In experiment 1, NPN supplementation increased the concentration of NH3-N and VFA (P < 0.01) without affecting the IVOMD (P = 0.48), total gas (P = 0.51), and CH4 production (P = 0.57). Additionally, in vitro fermentation parameters did not differ (P > 0.05) among NPN sources. In experiment 2, NPN supplementation did not change dry matter and nutrient intake (P > 0.05). However, UB and UBN showed lower (P < 0.05) nutrient digestibility than U, except for starch (P = 0.20). Dry matter intake (P = 0.28), average daily gain (P = 0.88), and gain:feed (P = 0.63) did not differ among steers receiving NPN mixtures. In conclusion, tested NPN mixtures have the potential to be included in the backgrounding diets without any apparent negative effects on animal performance and warrant further studies to evaluate other variables to fully assess the response of feeding these novel NPN mixtures.

Nonprotein nitrogen (NPN) supplements can be used as a nitrogen source for ruminants fed low-protein diets. The most common NPN source is urea, included typically at a range between 0.5% and 1% of the diet dry matter in growing beef cattle. Although other NPN sources and mixtures are available, there is scarce information regarding their use in ruminant production. Two experiments were conducted to evaluate the effect of NPN sources on in vitro fermentation and animal performance using a backgrounding diet. In experiment 1, three different incubations were performed for 24 h. Treatments were control (without NPN), urea (U), urea­biuret (UB), and urea­biuret­nitrate (UBN) mixtures. In experiment 2, 72 crossbred yearling steers were randomly assigned to one of the following treatments: U, UB, and UBN mixtures. Diets were formulated to contain the same nitrogen concentration in both experiments. In experiment 1, supplementation of NPN increased the in vitro fermentation, but there were no differences among NPN sources. In experiment 2, steers performed similarly among NPN sources. These findings suggest that NPN mixtures have the potential to be included in the backgrounding diets without detrimental effects. Further studies should evaluate other variables (e.g., fermentation dynamic and microbial protein supply) when using these novel mixtures.

Phytochemical Profiling of Sambucus nigra L. Flower and Leaf Extracts and Their Antimicrobial Potential against Almond Tree Pathogens.

Despite extensive research on the chemical composition of elderberries and their numerous uses in pharmaceutical, beverage, and food production, there is still a lack of knowledge about Sambucus nigra leaves and flowers' antimicrobial activity against plant pathogens. In this study, the phytoconstituents of their aqueous ammonia extracts were first characterized by infrared spectroscopy and gas chromatography-mass spectrometry. The major phytocompounds identified in the flower extract were octyl 2-methylpropanoate; 3,5-dihydroxy-6-methyl-2,3-dihydropyran-4-one; propyl malonic acid; adenine; and 1-methyl-2-piperidinemethanol. Concerning the leaf extract, 1,6-anhydro-ß-D-glucopyranose; oleic acid; 2,1,3-benzothiadiazole; 2,3-dihydro-benzofuran; and 4-((1E)-3-hydroxy-1-propenyl)-2-methoxyphenol and other phenol derivatives were the main constituents. The potential of the extracts to act as bioprotectants was then investigated against three almond tree pathogens: Diaporthe amygdali, Phytophthora megasperma, and Verticillium dahliae. In vitro tests showed higher activity of the flower extract, with EC90 values in the 241-984 µg·mL-1 range (depending on the pathogen) vs. 354-1322 µg·mL-1 for the leaf extract. In addition, the flower extract led to full protection against P. megasperma at a dose of 1875 µg·mL-1 in ex situ tests on artificially-infected excised almond stems. These inhibitory concentrations were lower than those of commercial fungicides. These findings suggest that S. nigra aerial organs may be susceptible to valorization as an alternative to synthetic fungicides for the protection of this important crop.

Holm Oak (Quercus ilex subsp. ballota (Desf.) Samp.) Bark Aqueous Ammonia Extract for the Control of Invasive Forest Pathogens.

Holm oak (Quercus ilex subsp. ballota (Desf.) Samp.) bark is a commonly used remedy to treat gastrointestinal disorders, throat and skin infections, hemorrhages, and dysentery. It has also been previously reported that its methanol extracts possess antibacterial activity, which can be related to the richness of Quercus spp. extracts in phenolic compounds, such as flavonoids and tannins. However, there is no information on the antifungal (including oomycete) properties of the bark from Q. ilex or its subspecies (ilex and ballota). In this work, we report the characterization of the aqueous ammonia extract of its bark by FTIR and GC-MS and the results of in vitro and ex situ inhibition tests against three phytopathogens. The main phytochemical components identified were inositols (19.5%), trans-squalene (13%), 4-butoxy-1-butanol (11.4%), gulopyranose (9.6%), lyxose (6.5%), 2,4-dimethyl-benzo[H]quinoline (5.1%), catechol (4.5%), and methoxyphenols (4.2%). The efficacy of the extract in controlling forest phytopathogens was tested in vitro against Fusarium circinatum (responsible for pitch canker of Pinus spp.), Cryphonectria parasitica (which causes chestnut blight), and Phytophthora cinnamomi (which causes 'root and crown rot' in a variety of hosts, including Castanea, conifers, Eucalyptus, Fagus, Juglans, Quercus, etc.), obtaining EC90 values of 322, 295, and 75 µg·mL-1, respectively, much lower than those attained for a commercial strobilurin fungicide (azoxystrobin). The extract was further tested ex situ against P. cinnamomi on artificially inoculated, excised stems of 'Garnem' almond rootstock, attaining complete protection at a dose of 782 µg·mL-1. The results suggest that holm oak bark extract may be a promising source of bioactive compounds against invasive forest pathogens, including the oomycete that is causing its decline, the so-called 'seca' in Spain.

Hospital nutrition care informs potential cost-savings for healthcare: A budget impact analysis.

BACKGROUND AND AIM: In Mexico, about half of hospitalized patients are malnourished or at risk of malnutrition upon hospital admission, while many others experience deterioration of their nutritional status while in the hospital. Such patients often experience poor health outcomes and have increased hospital costs. The aim of our budget-impact analysis was to estimate potential savings associated with the implementation of a Mexican hospital-based program of nutrition care for patients at malnutrition risk or malnourished. METHODS: The budget-impact model was based on data published previously. Our model compared patients assigned to receive individualized early nutrition therapy (initiated within 24-48 h of hospital admission) with those who received standard delayed nutrition therapy (not initiated early). Outcomes included length of stay, infectious complications, and 30-day readmissions. We modeled a 30-day time-horizon, estimated event probabilities on the basis of published data, and projected costs in 2020 US dollars. RESULTS: Average total healthcare costs over 30-days were $3527 for patients with early nutrition therapy vs $6032 for patients with standard nutrition therapy-a savings of $2505 per early nutrition-treated patient (41.5% lower). Cost differences between the groups were $2336 vs $3065 for hospital-associated costs (23.8% lower), $262 vs $780 for 30-day readmissions (66.4% lower) and $1348 for malnutrition-associated infections. Applying these potential savings from individualized early nutrition care to a one-year estimate of 3.22 million Mexican hospital patients with malnutrition or its risk, the total overall savings for public health expenditures was equivalent to $8.1 billion per year or 32.1% of total healthcare expenditures. CONCLUSIONS: The results demonstrated the potential for hospital-based nutrition care programs to reduce costs of patient hospitalizations. These notable findings provide a rationale for Mexican healthcare institutions to implement programs of comprehensive nutrition-focused care for inpatients with malnutrition or its risk. To this end, we advise implementation of professional programs for education and training in order to increase awareness of patients' nutritional needs and to better prepare clinical personnel to identify, treat, and monitor patients at-risk/malnourished.

Targeting malnutrition: Nutrition programs yield cost savings for hospitalized patients.

BACKGROUND & AIMS: Between 30 and 50% of Colombian patients are malnourished or at-risk of malnutrition on hospital admission. Malnutrition is associated with poor outcomes and increased costs. We used cost modeling to estimate savings that could be derived from implementation of a nutrition therapy program for patients at malnutrition risk. METHODS: The budget impact analysis was performed using previously-published outcomes data. Outcomes included length of stay, 30-day readmissions, and infectious/non-infectious complications. We developed a Markov model that compared patients who were assigned to receive early nutrition therapy (started within 24-48 h of hospital admission) with those assigned to receive standard nutrition therapy (not started early). Our model used a 60-day time-horizon and estimated event probabilities based on published data. RESULTS: Average total costs over 60 days were $3770 US dollars for patients with delayed nutrition therapy vs $2419 for patients with early nutrition therapy-a savings of $1351 (35.8% decrease) per nutrition-treated patient. Cost differences between the groups were: $2703 vs $1600 for hospital-associated costs; $883 vs $665 for readmissions; and $176 vs $94 for complications. Taken broadly, the potential costs savings from a nutrition care program for an estimated 638,318 hospitalized Colombian patients at malnutrition risk is $862.6 million per year. CONCLUSIONS: Our budget impact analysis demonstrated the potential for hospital-based nutrition care programs to improve health outcomes and reduce healthcare costs for hospitalized patients in Colombia. These findings provide a rationale for implementing comprehensive nutrition care in Colombian hospitals.

Concepto de sobrecarga del cuidador del niño con cáncer: revisión integrativa / Concept of work overload in care takers of children with cancer: integrative review / Conceito de sobrecarga do cuidador da criança com câncer: uma revisão integrativa

Introducción: La sobrecarga del cuidador de niños con cáncer se ha aplicado a partir de instrumentos que fueron diseñados para cuidadores de adultos con Alzheimer; sin embargo, aún no se tiene claridad acerca de este concepto en el caso del cáncer infantil. El propósito de esta revisión es identificar las peculiaridades del concepto de sobrecarga del cuidador del niño con cáncer. Metodología: Se realizó una revisión integrativa cualitativa, mediante el análisis de 21 artículos publicados entre 2012 y 2017, en español, inglés y portugués; la muestra se obtuvo de las bases de datos Bi-blioteca Virtual en Salud, Scielo, Science Direct, Embase, Ovid y Scopus; se usaron los descriptores Burden, Cancer, Children, Parents, Overload. Resultados: 5 fueron los temas relacionados con la sobrecarga del cuidador del niño con cáncer, especial-mente en lo que se refiere al sobreesfuerzo dimensional a nivel: físico, psicológico, social, económico y espiritual. Conclusión: Aunque el concepto de sobrecarga ha evolucionado hasta contar con instrumentos de medición, el fenómeno se vive de ma-nera particular en cuidadores de niños con cáncer debido a la influencia que tienen el amor parental y la connotación social del cáncer; no obstante, los cuidadores realizan sobreesfuerzos y no desean abandonar el cuidado

Introduction: The overload of care takers of children with cancer has been applied from instruments that were designed for care takers of adults with Alzheimer; howe-ver, there is no clarity about this concept in the case of childhood cancer yet. The purpose of this review is to identify the peculiarities of the concept of work overload for the care takers of children with cancer. Methodology: A qualitative, integrative review was performed through the analysis of 21 articles published between 2012 and 2017, in Spanish, English and Portuguese; the sample was obtained from the data bases Biblioteca Virtual en Salud (Virtual Library of Health) Scielo, Science Direct, Embase, Ovid y Scopus; the descriptors used were: Burden, Cancer, Children, Parents, Overload. Results: There were 5 subjects related to work overload from the care taker of a child with cancer, specially referring to dimensional overload in the physical, psychological, social, economic and spiritual levels. Conclusions: Although the concept of overload has evolved to count with measuring instruments, the phenomena is particular for care takers of children with cancer due to the influence of family love and the social connotation of cancer; however, care takers have work overload and do not wish to abandon their job.

Introdução: A sobrecarga do cuidador de crianças com câncer foi objetivada por instrumentos que foram projetados para cuidadores de adultos com doença de Alzheimer, no entanto, este conceito ainda não foi esclarecido no caso de câncer infantil. O objetivo desta revisão é identificar os atribu-tos do conceito de sobrecarga do cuidador da criança com câncer. Materiais e métodos: Revisão in-tegrativa qualitativa onde 21 artigos publicados entre 2012 e 2017 em espanhol, inglês e portugués, foram retirados das bases de dados Biblioteca Virtual en Salud, Scielo, Science Direct, Embase, Ovid e Scopus, utilizando os descritores Burden, Cancer, Children, Parents, Overload. Resultados: Cinco questões relacionadas à sobrecarga do cuidador da criança com câncer surgiram, o que cons-titui uma sobrecarga dimensional em um nível físico, psicológico, social, econômico e espiritual. Conclusão: Embora o conceito de sobrecarga tenha evoluído na ciência para ter instrumentos de medição, o fenômeno é experimentado de forma particular nos cuidadores de crianças com câncer desde o amor parental e a conotação social do câncer, apesar do excesso de esforço , cuidadores não querem abandonar o cuidado.

Terapias no farmacológicas en distonías / Alternative therapies in dystonia

El uso de la medicina complementaria y alternativa está aumentando en todo el mundo, especialmente en los pacientes con enfermedades crónicas. En los tiempos de la medicina basada en la evidencia, en ocasiones se puede omitir el potencial beneficio de las terapias alternativas que no siempre pueden ser sometidas a la rigurosidad científica de los ensayos clínicos.

SUMMARY The use of complementary and alternative has spread in most part of the world, especially in patients with chronic disease. In evidence-based medicine times sometimes, the potential benefit of this kind of therapy may be overlook because this intervention may not be suitable to be tested with the actual scientific standards.

Terapias no farmacológicas en distonías / Alternative therapies in dystonia

RESUMEN El uso de la medicina complementaria y alternativa está aumentando en todo el mundo, especialmente en los pacientes con enfermedades crónicas. En los tiempos de la medicina basada en la evidencia, en ocasiones se puede omitir el potencial beneficio de las terapias alternativas que no siempre pueden ser sometidas a la rigurosidad científica de los ensayos clínicos.

SUMMARY The use of complementary and alternative has spread in most part of the world, especially in patients with chronic disease. In evidence-based medicine times sometimes, the potential benefit of this kind of therapy may be overlook because this intervention may not be suitable to be tested with the actual scientific standards.

In vitro and in vivo antitumor effects of the VO-chrysin complex on a new three-dimensional osteosarcoma spheroids model and a xenograft tumor in mice.

Osteosarcoma (OS) is the most common primary tumor of bone, occurring predominantly in the second decade of life. High-dose cytotoxic chemotherapy and surgical resection have improved prognosis, with long-term survival for patients with localized disease. Vanadium is an ultra-trace element that after being absorbed accumulates in bone. Besides, vanadium compounds have been studied during recent years to be considered as representative of a new class of non-platinum antitumor agents. Moreover, flavonoids are a wide family of polyphenolic compounds that display many interesting biological effects. Since coordination of ligands to metals can improve the pharmacological properties, we report herein, for the first time, the in vitro and in vivo effects of an oxidovanadium(IV) complex with the flavonoid chrysin on the new 3D human osteosarcoma and xenograft osteosarcoma mice models. The pharmacological results show that VOchrys inhibited the cell viability affecting the shape and volume of the spheroids and VOchrys suppressed MG-63 tumor growth in the nude mice without inducing toxicity and side effects. As a whole, the results presented herein demonstrate that the antitumor action of the complex was very promissory on human osteosarcoma models, whereby suggesting that VOchrys is a potentially good candidate for future use in alternative antitumor treatments.

Interprofessional Obstetric Ultrasound Education: Successful Development of Online Learning Modules; Case-Based Seminars; and Skills Labs for Registered and Advanced Practice Nurses, Midwives, Physicians, and Trainees.

Ultrasound is an important aid in the clinical diagnosis and management of normal and complicated pregnancy and childbirth. The technology is widely applied to maternity care in the United States, where comprehensive standard ultrasound examinations are routine. Targeted scans are common and used for an increasing number of clinical indications due to emerging research and a greater availability of equipment with better image resolution at lower cost. These factors contribute to an increased demand for obstetric ultrasound education among students and providers of maternity care, despite a paucity of data to inform education program design and evaluation. To meet this demand, from 2012 to 2015 the University of California, San Francisco nurse-midwifery education program developed and implemented an interprofessional obstetric ultrasound course focused on clinical applications commonly managed by maternity care providers from different professions and disciplines. The course included matriculating students in nursing and medicine, as well as licensed practitioners such as registered and advanced practice nurses, midwives, and physicians and residents in obstetrics and gynecology and family medicine. After completing 10 online modules with a pre- and posttest of knowledge and interprofessional competencies related to teamwork and communication, trainees attended a case-based seminar and hands-on skills practicum with pregnant volunteers. The course aimed to establish a foundation for further supervised clinical training prior to independent practice of obstetric ultrasound. Course development was informed by professional guidelines and clinical and education research literature. This article describes the foundations, with a review of the challenges and solutions encountered in obstetric ultrasound education development and implementation. Our experience will inform educators who wish to facilitate obstetric ultrasound competency development among new and experienced maternity care providers in academic and clinical settings. This article is part of a special series of articles that address midwifery innovations in clinical practice, education, interprofessional collaboration, health policy, and global health.

Effect of enhanced information, values clarification, and removal of financial barriers on use of prenatal genetic testing: a randomized clinical trial.

IMPORTANCE: Prenatal genetic testing guidelines recommend providing patients with detailed information to allow informed, preference-based screening and diagnostic testing decisions. The effect of implementing these guidelines is not well understood. OBJECTIVE: To analyze the effect of a decision-support guide and elimination of financial barriers to testing on use of prenatal genetic testing and decision making among pregnant women of varying literacy and numeracy levels. DESIGN, SETTING, AND PARTICIPANTS: Randomized trial conducted from 2010-2013 at prenatal clinics at 3 county hospitals, 1 community clinic, 1 academic center, and 3 medical centers of an integrated health care delivery system in the San Francisco Bay area. Participants were English- or Spanish-speaking women who had not yet undergone screening or diagnostic testing and remained pregnant at 11 weeks' gestation (n = 710). INTERVENTIONS: A computerized, interactive decision-support guide and access to prenatal testing with no out-of-pocket expense (n = 357) or usual care as per current guidelines (n = 353). MAIN OUTCOMES AND MEASURES: The primary outcome was invasive diagnostic test use, obtained via medical record review. Secondary outcomes included testing strategy undergone, and knowledge about testing, risk comprehension, and decisional conflict and regret at 24 to 36 weeks' gestation. RESULTS: Women randomized to the intervention group, compared with those randomized to the control group, were less likely to have invasive diagnostic testing (5.9% vs 12.3%; odds ratio [OR], 0.45 [95% CI, 0.25-0.80]) and more likely to forgo testing altogether (25.6% vs 20.4%; OR, 3.30 [95% CI, 1.43-7.64], reference group screening followed by invasive testing). Women randomized to the intervention group also had higher knowledge scores (9.4 vs 8.6 on a 15-point scale; mean group difference, 0.82 [95% CI, 0.34-1.31]) and were more likely to correctly estimate the amniocentesis-related miscarriage risk (73.8% vs 59.0%; OR, 1.95 [95% CI, 1.39-2.75]) and their estimated age-adjusted chance of carrying a fetus with trisomy 21 (58.7% vs 46.1%; OR, 1.66 [95% CI, 1.22-2.28]). Significant differences did not emerge in decisional conflict or regret. CONCLUSIONS AND RELEVANCE: Full implementation of prenatal testing guidelines using a computerized, interactive decision-support guide in the absence of financial barriers to testing resulted in less test use and more informed choices. If validated in additional populations, this approach may result in more informed and preference-based prenatal testing decision making and fewer women undergoing testing. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00505596.

Enfoque actual en la rehabilitación de la escoliosis / Current Approach in Rehabilitation of Scoliosis

La escoliosis idiopática consiste en una deformidad tridimensional de la columna vertebral, existe una curvatura lateral del raquis o varias, junto a una rotación vertebral y una modificación del plano sagital. Se realizó un abordaje sobre la escoliosis; su definición, etiología y su abordaje terapéutico, en específico la cinesioterapia. El objetivo fue fundamentar los diferentes métodos que están vigentes, breve reseña de sus autores, principios que los rigen, su basamento teórico y técnicas de aplicación(AU)

Idiopathic scoliosis is a three-dimensional deformation of the spine, there is a lateral curvature of the spine or more, with a vertebral rotation and a change in the sagittal plane. An approach was made about scoliosis, its definition, etiology and therapeutic approach, specificifically kinesiotherapy. The objective of the study was to corroborate the different methods that are effective, brief review of the authors, the principles that are considered, its theoretical basis and application techniques(AU)

Comparación de tres géneros musicales como método analgésico no farmacológico: estudio randomizado ciego simple / Comparison of three musical genders as a non pharmacological method: randomized simple blind trial

Objetivo: Comparación de tres géneros musicales como método analgésico no farmacológico para la determinación del género musical que posee mayor efecto analgésico entre niños de 2 a 11 años de edad. Material y Métodos: 150 niños participantes en una campaña de despistaje de anemia realizada en el Hospital Nacinal Arzobispo Laoyza, fueron agrupados aleatoriamente en 4 grupos con 3 distintos géneros musicales y un grupo control (A=Mozart; B=Daddy Yankee; C=Marc Anthony; D= sin estímulo musical). Los niños fueron expuestos a 2 minutos de música o silencio, realizándose el estímulo doloroso (punción para la toma de muestra) a los 60 segundos. Se evaluó la intensidad del dolor según dos escalas: CHEOPS y Autoinforme (según el grupo etario: 2-6 años y 7-11 años, respectivamente); además, se midió la frecuencia cardíaca y saturación de oxígeno, un minuto antes, durante y un minuto después del estímulo doloroso. Se utilizó para el análisis, la pureba de Kruskal-Wallis (prueba no paramétrica). Resultados: El grupo C (Marc Anthony) mostró mayor efecto analgésico al ser comparado con los grupos A y D, al utilizar la escala de Autoinforme (p:0,03); no hubo diferencia significativa con el grupo B. Al comparar los géneros musicales en el grupo etáreo menor (2-6 años, CHEOPS), se encontró un mayor efecto analgésico en el grupo A (Mozart), aunque sin significancia estadística (p: 0,859). Se encontró también mayores niveles de dolor en los grupos B y C. No se hallo diferencia significativa al comparar las curvas de saturación de oxígeno ni frecuencia cardiaca entre los grupos. Conclusiones: La salsa parece otorgar un mayor efecto analgésico en los niños entre 7 y 11 años al ser evaluados con la escala de Autoinforme, comparándolos con los otros géneros musicales y el control; mientras que en los niños entre 2 y 6 años, al ser evaluados con la escala de CHEOPS, ...

Objetive: To compare three music genders as a non pharmacological analgesic method to determine which one has the most analgesic effect in children between 2 and 11 years old. Material and Methods: our study population was a hundred and fifty children who participated on an anemia screening campaign held at the Hospital Nacional Arzobispo Loayza. They were grouped randomly in 4 groups with 3 different musical genders and 1 control group (A=Mozart; B=Daddy Yankee; C=Marc Anthony; D=no musical stimuli). The pain level was assessed by 2 scales: The Children's Hospital of Eastern Ontario Pain Scale (CHEOPS) and Self assessment Scale (the younger age group from 2 to 6 years old, the older age group from 7 to 11 years old respectably), it was also measured heart rate and oxygen saturation 60 seconds before painful stimuli, during stimuli and 30 and 60 seconds post-stimuli. The Kruskal-Wallis Test (non parametric test) was used to analyze the results we obtained. Results: When Self-assessment scale was used, Group C (Marck Anthony) showed the most analgesic effect, compared to groups A and D (p: 0,03); on the other side there was nor significant effect with Group B. When the 3 musical genders where compared in the younger age group (from 2 to 6 years old, CEHOPS), it was found that Group A (Mozart) had the best analgesic effect, even though it did not have any statistic significance (p:0,859). It was also found higher pain levels in Group B and C. No statistical significant difference was found when Oxygen Saturation curves where compared between the four groups, neither heart rate curves. Conclusions: Salsa seems to offer the best analgesic effects in children from 7 to 11 years old, when self-assessment scale was used. Children from 2 to 6 years old were evaluated by CHEOPS scale. We found out that without any statistical significance classical music seems to have the best analgesic effect during painful stimuli.