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1.
J Med Internet Res ; 24(3): e25224, 2022 03 31.
Article in English | MEDLINE | ID: mdl-35357316

ABSTRACT

BACKGROUND: Cardiac rehabilitation is central in reducing mortality and morbidity after myocardial infarction. However, the fulfillment of guideline-recommended cardiac rehabilitation targets is unsatisfactory. eHealth offers new possibilities to improve clinical care. OBJECTIVE: This study aims to assess the effect of a web-based application designed to support adherence to lifestyle advice and self-control of risk factors (intervention) in addition to center-based cardiac rehabilitation, compared with cardiac rehabilitation only (usual care). METHODS: All 150 patients participated in cardiac rehabilitation. Patients randomized to the intervention group (n=101) received access to the application for 25 weeks where information about lifestyle (eg, diet and physical activity), risk factors (eg, weight and blood pressure [BP]), and symptoms could be registered. The software provided feedback and lifestyle advice. The primary outcome was a change in submaximal exercise capacity (Watts [W]) between follow-up visits. Secondary outcomes included changes in modifiable risk factors between baseline and follow-up visits and uptake and adherence to the application. Regression analysis was used, adjusting for relevant baseline variables. RESULTS: There was a nonsignificant trend toward a larger change in exercise capacity in the intervention group (n=66) compared with the usual care group (n=40; +14.4, SD 19.0 W, vs +10.3, SD 16.1 W; P=.22). Patients in the intervention group achieved significantly larger BP reduction compared with usual care patients at 2 weeks (systolic -27.7 vs -16.4 mm Hg; P=.006) and at 6 to 10 weeks (systolic -25.3 vs -16.4 mm Hg; P=.02, and diastolic -13.4 vs -9.1 mm Hg; P=.05). A healthy diet index score improved significantly more between baseline and the 2-week follow-up in the intervention group (+2.3 vs +1.4 points; P=.05), mostly owing to an increase in the consumption of fish and fruit. At 6 to 10 weeks, 64% (14/22) versus 46% (5/11) of smokers in the intervention versus usual care groups had quit smoking, and at 12 to 14 months, the respective percentages were 55% (12/22) versus 36% (4/11). However, the number of smokers in the study was low (33/149, 21.9%), and the differences were nonsignificant. Attendance in cardiac rehabilitation was high, with 96% (96/100) of patients in the intervention group and 98% (48/49) of patients receiving usual care only attending 12- to 14-month follow-up. Uptake (logging data in the application at least once) was 86.1% (87/101). Adherence (logging data at least twice weekly) was 91% (79/87) in week 1 and 56% (49/87) in week 25. CONCLUSIONS: Complementing cardiac rehabilitation with a web-based application improved BP and dietary habits during the first months after myocardial infarction. A nonsignificant tendency toward better exercise capacity and higher smoking cessation rates was observed. Although the study group was small, these positive trends support further development of eHealth in cardiac rehabilitation. TRIAL REGISTRATION: ClinicalTrials.gov NCT03260582; https://clinicaltrials.gov/ct2/show/NCT03260582. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.1186/s13063-018-3118-1.


Subject(s)
Myocardial Infarction , Quality of Life , Humans , Internet , Life Style , Myocardial Infarction/therapy , Risk Factors , Software
2.
BMJ Health Care Inform ; 27(3)2020 Sep.
Article in English | MEDLINE | ID: mdl-32928780

ABSTRACT

BACKGROUND: Pulmonary arterial hypertension (PAH) is a severe chronic condition associated with poor quality of life and high risks of mortality and hospitalisation. The utilisation of novel diagnostic technologies has improved survival rates although the effectiveness of Electronic Health (eHealth) interventions in patients with a chronic cardiopulmonary disease remains controversial. As the effectiveness of eHealth can be established by specific evaluation for different chronic health conditions, the aim of this study was to explore and summarise the utilisation of eHealth in PAH. METHOD: We searched PubMed, CINAHL and Embase for all studies reporting clinical trials on eHealth solutions for the management of PAH. No limitations in terms of study design or date of publication were imposed. RESULTS: 18 studies (6 peer-reviewed journal papers and 12 conference papers) were identified. Seven studies addressed the accuracy, safety or reliability of eHealth technologies such as intra-arterial haemodynamic monitoring of the pulmonary artery pressure, self-administered 6-Minute walk test App, computerised step-pulse oximeter and ambulatory impedance cardiography. Two studies evaluated eHealth as part of the medical management and showed a reduction in hospitalisation rate. CONCLUSIONS: The evidence of eHealth supporting the management of people with PAH is limited and only embraced through a few studies of small sample size and short-term duration. Given the proposed clinical benefits in heart failure, we postulate that the evaluation of eHealth for the clinical management of PAH is highly warranted.


Subject(s)
Chronic Disease/therapy , Disease Management , Pulmonary Arterial Hypertension/therapy , Telemedicine , Humans
3.
BMJ Health Care Inform ; 26(1)2019 Sep.
Article in English | MEDLINE | ID: mdl-31488496

ABSTRACT

INTRODUCTION: The implementation of home-based cardiac rehabilitation has demonstrated potential to increase patient participation, but the content and the delivering of the programmes varies across countries. The objective of this study is to investigate whether an Australian-validated mobile health (mHealth) platform for cardiac rehabilitation will be accepted and adopted irrespectively from the existing organisational and contextual factors in five different European countries. METHODS AND ANALYSIS: This international multicentre feasibility study will use surveys, preliminary observations and analysis to evaluate the use and the user's perceptions (satisfaction) of a validated mHealth platform in different contextual settings. ETHICS AND DISSEMINATION: This study protocol has been approved by the Australian research organisation CSIRO and the respective ethical committees of the European sites. The dissemination of this trial will serve as a ground for the further implementation of an international large randomised controlled trial which will contribute to an effective global introduction of mHealth into daily clinical practice.


Subject(s)
Cardiac Rehabilitation , Home Care Services , Patient Participation/psychology , Patient Satisfaction , Telemedicine , Australia , Cost-Benefit Analysis , Feasibility Studies , Global Health , Humans , Research Design , Surveys and Questionnaires , Treatment Outcome
4.
Clin Med Insights Cardiol ; 13: 1179546819861396, 2019.
Article in English | MEDLINE | ID: mdl-31316270

ABSTRACT

BACKGROUND: Telemedicine and digital health technologies hold great promise for improving clinical care of heart failure. However, inconsistent and contradictory findings from randomized controlled trials have so far discouraged widespread adoption of digital health in routine clinical practice. We undertook this review study to summarize the study outcomes of the use of exploring the evidence for telemedicine in the clinical care of patients with heart failure and readmissions. METHODS: We inspected the references of guidelines and searched PubMed for randomized controlled trials published over the past 10 years on the use of telemedicine for reducing readmission in heart failure. We utilized a modified realist review approach to identify the underlying contextual mechanisms for the intervention(s) in each randomized controlled trial, evaluating outcomes of the intervention and understanding how and under what conditions they worked. To provide uniformity, all extracted data were synthesized using adapted domains from the taxonomy for disease management created by the Disease Management Taxonomy Writing Group. RESULTS: A total of 12 papers were eligible, 6 of them supporting and 6 others undermining the use of telemedicine for improving heart failure readmission. In general terms, those studies not supporting the use of telemedicine were multicentre, publicly funded, with large amount of participants, and long duration. The patients had also better rates of treatment with angiotensin-converting enzyme inhibitors/angiotensin II receptor blocker and beta-blockers, and telemonitoring and automatic transmission of vital signs were less utilized, in comparison with the studies in which telemedicine use was supported. The analysis of the environment, intensity, content of interventions, method of communication, quality of the underlying model of care and the ability, capability, and interest from health workers can help us to envisage probabilities of success of telemedicine use. CONCLUSIONS: A realist lens may aid to understand whom and in which circumstances the use of telemedicine can add any substantial value to traditional models of care. Wider outcome criteria beyond major adverse cardiovascular events, for example, cost efficacy, should also be considered as appropriate for effecting guidelines on care delivery when robust prognostic therapeutics already exist.

5.
Med. oral patol. oral cir. bucal (Internet) ; 21(3): e328-e334, mayo 2016. ilus, tab
Article in English | IBECS | ID: ibc-152712

ABSTRACT

BACKGROUND: Was to describe 14 cases of a proliferative verrucous leukoplakia as a clinical evolution of oral lichen planus. MATERIAL AND METHODS: The clinical and histopathological characteristics of 14 cases of OLP that progress towards a plaque-like and verrucous form were indicated, with monitoring over a period of six to 24.3 years. RESULTS: The female/male ratio was 11/3, (78.6 and 21.4%). The mean age when the first biopsy was undertaken was 56.4 years old. None of the patients smoked during the study. As bilateral reticular was clinically diagnostic criterion, the second most frequent clinical form was the plaque form (n=10; 71.4%), followed by the atrophic (n=6; 42.8%), and erosive forms (n=4; 28.5%). Clinically it spread towards attached gingival mucosa and the hard palate. In the histopathologic study, there were a predominance of hyperkeratosis and verrucous epithelial hyperplasia. Three of the cases progressed to a squamous cell carcinoma, and one patient developed two verrucous carcinoma. CONCLUSIONS: Further research is needed to demonstrate if proliferative multifocal oral lichen planus and proliferative multifocal oral leukoplakia are the same disorder but have different behaviour of malignancy for reasons of origin


Subject(s)
Humans , Leukoplakia, Oral/pathology , Lichen Planus, Oral/pathology , Warts/pathology , Epidermodysplasia Verruciformis/pathology
6.
Med. oral patol. oral cir. bucal (Internet) ; 20(5): e547-e553, sept. 2015. ilus, tab
Article in English | IBECS | ID: ibc-142982

ABSTRACT

BACKGROUND: The purpose of this study was to determine the prevalence of level IIb metastasis in patients with oral squamous cell carcinomas (OSCCs). MATERIAL AND METHODS: A prospective analysis of 56 patients with OSCC who underwent surgical treatment of the primary lesion with simultaneous neck dissection was performed. During neck dissection, level IIb lymph nodes were separately removed and processed. Neck dissection was bilateral in 26 patients (46%) and unilateral in 30 patients (54%). RESULTS: The mean number of nodes found in the level IIb specimens was 4.7 (range: 0-8 nodes). The prevalence of metastasis at level IIb was 0% in pN0 necks and 3.4% in pN+ necks, with an overall prevalence of 1.8%. A significant association between metastasis to level IIb and type of neck dissection was observed. There were no isolated metastases to level IIb without the involvement of other nodes in the remaining neck specimen. Four regional recurrences were observed during follow-up. CONCLUSIONS: Based on our findings, we suggest that dissection of the level IIb region in patients with OSCC may be required only in patients with multilevel neck metastasis or if level IIa metastasis is found intraoperatively


Subject(s)
Humans , Carcinoma, Squamous Cell/pathology , Mouth Neoplasms/pathology , Accessory Nerve/pathology , Neoplasm Metastasis/pathology , Head and Neck Neoplasms/pathology , Lymphatic Metastasis/pathology
7.
J Craniomaxillofac Surg ; 43(8): 1655-61, 2015 Oct.
Article in English | MEDLINE | ID: mdl-26293190

ABSTRACT

PURPOSE: The purpose of this study was to investigate the adequacy of a modified facelift incision combined with an SMAS flap for the resection of benign parotid lesions in terms of cosmesis and incidence of Frey's syndrome. MATERIALS AND METHODS: A hundred patients who underwent superficial parotidectomy were divided into 2 groups according to approach: Blair incision (57 cases) and modified facelift incision (43 cases). In the latter group, 36 patients were reconstructed with a superficial musculoaponeurotic system (SMAS) flap. During follow-up, patients were asked to rate their satisfaction with their postoperative appearance using a 1 to 3 scale. RESULTS: Clinical Frey's syndrome was present in 8.5% of patients with SMAS flap, and in 19% patients without SMAS flap (p = 0.16). The average cosmetic outcome score for patients who underwent a modified facelift approach combined with an SMAS flap was 2.87, whereas patients whose tumors were approached through a Blair incision reported a lower score of 2.1 (p < 0.005). CONCLUSION: A modified facelift incision combined with an SMAS flap improved the cosmetic appearance of patients who underwent extrafacial or superficial parotidectomy. In addition, this flap seems to reduce the occurrence of Frey's syndrome.


Subject(s)
Aponeurosis/transplantation , Muscle, Skeletal/transplantation , Parotid Neoplasms/surgery , Rhytidoplasty/methods , Surgical Flaps/transplantation , Adenolymphoma/surgery , Adenoma, Pleomorphic/surgery , Adolescent , Adult , Aged , Aged, 80 and over , Case-Control Studies , Esthetics , Female , Follow-Up Studies , Humans , Male , Middle Aged , Parotid Gland/surgery , Patient Satisfaction , Postoperative Complications/prevention & control , Plastic Surgery Procedures/methods , Retrospective Studies , Sweating, Gustatory/prevention & control , Treatment Outcome , Young Adult
8.
Med Oral Patol Oral Cir Bucal ; 20(5): e547-53, 2015 Sep 01.
Article in English | MEDLINE | ID: mdl-26116840

ABSTRACT

BACKGROUND: The purpose of this study was to determine the prevalence of level IIb metastasis in patients with oral squamous cell carcinomas (OSCCs). MATERIAL AND METHODS: A prospective analysis of 56 patients with OSCC who underwent surgical treatment of the primary lesion with simultaneous neck dissection was performed. During neck dissection, level IIb lymph nodes were separately removed and processed. Neck dissection was bilateral in 26 patients (46%) and unilateral in 30 patients (54%). RESULTS: The mean number of nodes found in the level IIb specimens was 4.7 (range: 0-8 nodes). The prevalence of metastasis at level IIb was 0% in pN0 necks and 3.4% in pN+ necks, with an overall prevalence of 1.8%. A significant association between metastasis to level IIb and type of neck dissection was observed. There were no isolated metastases to level IIb without the involvement of other nodes in the remaining neck specimen. Four regional recurrences were observed during follow-up. CONCLUSIONS: Based on our findings, we suggest that dissection of the level IIb region in patients with OSCC may be required only in patients with multilevel neck metastasis or if level IIa metastasis is found intraoperatively.


Subject(s)
Carcinoma, Squamous Cell/secondary , Carcinoma, Squamous Cell/surgery , Mouth Neoplasms/surgery , Neck Dissection , Adult , Aged , Aged, 80 and over , Carcinoma, Squamous Cell/epidemiology , Carcinoma, Squamous Cell/pathology , Female , Humans , Lymphatic Metastasis , Male , Middle Aged , Mouth Neoplasms/pathology , Neoplasm Staging , Prevalence , Prospective Studies
11.
Pediatr Int ; 55(3): 355-9, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23414217

ABSTRACT

BACKGROUND: In pediatric clinical practice, it is common to be asked about the presence of black stains on teeth in children and teenagers. According to controversial etiology, it is known to be related to a low rate of caries. The aim of this study was to determine the prevalence of black stain and associated risk factors in Spanish preschool children. METHODS: A total of 3272 children aged 6 years old (3058 non-emigrant and 214 immigrant children) living in Oviedo (Spain), were enrolled in the present study. RESULTS: The prevalence of black stain was 3.1% in the whole group. The index of primary decayed, missing, and filled teeth (dmft index) associated with black stain was 0.35 ± 1.123. A statistical association between black stain and the consumption of iron supplements was noted. CONCLUSIONS: The regular consumption of foods rich in iron and the use of iron supplements during pregnancy and early childhood, could favor the development of chromogenic microbiota. The prevalence of black stain did not differ significantly between non-emigrant and immigrant children in Spain.


Subject(s)
Emigrants and Immigrants/statistics & numerical data , Tooth Discoloration/epidemiology , Child , DMF Index , Dietary Supplements/adverse effects , Female , Humans , Iron Compounds/administration & dosage , Iron Compounds/adverse effects , Male , Pregnancy , Prenatal Exposure Delayed Effects , Risk Factors , Spain , Tooth Discoloration/diagnosis , Tooth Discoloration/etiology
12.
Pediatr Dermatol ; 29(6): 768-70, 2012.
Article in English | MEDLINE | ID: mdl-21995291

ABSTRACT

This report describes a novel missense mutation in the interferon regulation factor 6 (IRF6) gene associated to facial asymmetry. This new feature widens the phenotype spectrum of Van der Woude syndrome (VWS).


Subject(s)
Abnormalities, Multiple/genetics , Cleft Lip/genetics , Cleft Palate/genetics , Cysts/genetics , Interferon Regulatory Factors/genetics , Mutation, Missense , Family Health , Humans , Infant , Lip/abnormalities , Male , Pedigree , Phenotype , Twins
13.
Med. oral patol. oral cir. bucal (Internet) ; 13(2): 119-123, feb. 2008. ilus
Article in En | IBECS | ID: ibc-67301

ABSTRACT

No disponible


Ectodermal dysplasias form part of a wide range of syndromes presenting abnormal development of two or moretissues derived from the ectoderm.Hypohidrotic ectodermal dysplasia is a congenital syndrome, characterized by hypotrichosis (hair is sparse, fine and weak; anomalies in the skin and nails), hypohidrosis (due to the paucity of sweat glands which in turn gives rise to sweat disorders) and hypodontia (partial, and occasionally total, absence of primary and/or permanent dentition). A case of a child with hypohidrotic ectodermal dysplasia with oligodontia and marked resorption of the maxillary and mandibular alveolar ridges is presented. A prosthetic rehabilitation in the form of a removable acrylic prosthesis was made, achieving excellent esthetics, functionality and adaptation, thanks to which a considerable improvement in self-esteem has been obtained


Subject(s)
Humans , Male , Child, Preschool , Denture, Partial, Removable , Ectodermal Dysplasia/complications , Anodontia/therapy , Hypohidrosis/complications
14.
Med Oral Patol Oral Cir Bucal ; 13(2): E119-23, 2008 Feb 01.
Article in English | MEDLINE | ID: mdl-18223528

ABSTRACT

Ectodermal dysplasias form part of a wide range of syndromes presenting abnormal development of two or more tissues derived from the ectoderm. Hypohidrotic ectodermal dysplasia is a congenital syndrome, characterized by hypotrichosis (hair is sparse, fine and weak; anomalies in the skin and nails), hypohidrosis (due to the paucity of sweat glands which in turn gives rise to sweat disorders) and hypodontia (partial, and occasionally total, absence of primary and/or permanent dentition). A case of a child with hypohidrotic ectodermal dysplasia with oligodontia and marked resorption of the maxillary and mandibular alveolar ridges is presented. A prosthetic rehabilitation in the form of a removable acrylic prosthesis was made, achieving excellent esthetics, functionality and adaptation, thanks to which a considerable improvement in self-esteem has been obtained.


Subject(s)
Dental Prosthesis , Ectodermal Dysplasia/complications , Tooth Abnormalities/etiology , Tooth Abnormalities/therapy , Child, Preschool , Humans , Male
15.
Med Oral Patol Oral Cir Bucal ; 11(5): E446-8, 2006 Aug 01.
Article in English, Spanish | MEDLINE | ID: mdl-16878064

ABSTRACT

Tumors of the salivary glands constitute an important field of oral and maxillofacial pathology. The majority of salivary gland neoplasms are benign, with malignant salivary tumors accounting for 15 to 32 percent. The most common site for salivary gland tumors is the parotid gland, accounting up to 80 percent of all cases. This article reports the pathologic picture in a case of sebaceous adenoma of the parotid gland. The tumor was composed of epithelial cells lining ducts and closely associated with broad areas of sebaceous differentiation. The growth pattern was predominantly cystic, with cavities filled with sebaceous material. Areas of oncocytic metaplasia were also seen. The presence of sebaceous glands in salivary neoplasms is frequent, however, and in spite of this, salivary neoplasms constituted partially or entirely of these cells are rarely observed. To the surgeon and pathologist, the major problem in dealing with sebaceous adenoma is the recognition of this rare entity, avoiding confusing with other more aggressive neoplasms. The treatment involves surgical excision. The addition of the current case to the previously published data brings the total number of parotid sebaceous adenoma to seven.


Subject(s)
Adenoma/pathology , Parotid Neoplasms/pathology , Female , Humans , Middle Aged
16.
Med. oral patol. oral cir. bucal (Internet) ; 11(5): 446-448, ago. 2006. ilus
Article in Es | IBECS | ID: ibc-048812

ABSTRACT

Los tumores de las glándulas salivales constituyen un área importante de la patología oral y maxilofacial. La mayor parte de las neoplasias glandulares salivales son benignas, representando las malignas entre el 15 y el 32% del total. La localización más común de estas entidades es la glándula parótida, en la que asientan hasta el 80% de todos los casos. En este artículo se presenta un caso de adenoma sebáceo salival, de localización parotídea. El tumor, formado por células epiteliales que tapizan conductos, exhibe amplias áreas de diferenciación sebácea y zonas con metaplasia oncocítica. El patrón histológico es predominantemente quístico, observándose cavidades rellenas con material sebáceo. Si bien la presencia de glándulas sebáceas en las glándulas salivales es frecuente, las neoplasias exclusivamente formadas por las mismas son muy infrecuentes. Dada su rareza, este tumor plantea problemas diagnósticos diferenciales con otras entidades benignas y malignas. Su tratamiento implica la extirpación de la lesión, lo que generalmente involucra la eliminación de la glándula en la que ha surgido. El presente caso constituye el séptimo publicado de esta entidad


Tumors of the salivary glands constitute an important field of oral and maxillofacial pathology. The majority of salivary gland neoplasms are benign, with malignant salivary tumors accounting for 15 to 32 percent. The most common site for salivary gland tumors is the parotid gland, accounting up to 80 percent of all cases. This article reports the pathologic picture in a case of sebaceous adenoma of the parotid gland. The tumor was composed of epithelial cells lining ducts and closely associated with broad areas of sebaceous differentiation. The growth pattern was predominantly cystic, with cavities filled with sebaceous material. Areas of oncocytic metaplasia were also seen. The presence of sebaceous glands in salivary neoplasms is frequent, however, and in spite of this, salivary neoplasms constituted partially or entirely of these cells are rarely observed. To the surgeon and pathologist, the major problem in dealing with sebaceous adenoma is the recognition of this rare entity, avoiding confusing with other more aggressive neoplasms. The treatment involves surgical excision. The addition of the current case to the previously published data brings the total number of parotid sebaceous adenoma to seven


Subject(s)
Female , Middle Aged , Humans , Adenoma/pathology , Parotid Neoplasms/pathology
17.
ASDC J Dent Child ; 69(1): 59-62, 12, 2002.
Article in English | MEDLINE | ID: mdl-12119815

ABSTRACT

Ankyloglossia is a developmental anomaly of the tongue characterized by a short, thick, lingual frenum resulting in limitation of tongue movement. The frenum is attached to the tip of the tongue in varying degrees. This study evaluates short lingual frenum and other associated pathologies (dentofacial anomalies and lingual dysglossia) and investigates whether ankyloglossia is related to speech problems. A thorough intraoral examination was carried out using the WHO regulations for dentofacial anomalies and occlusion problems and a new scale of lingual mobility. This article also discusses the difficulty in diagnosing this condition and finally following to the results of our study, describes the indications for nonsurgical and surgical treatment of this anomaly.


Subject(s)
Lingual Frenum/abnormalities , Tongue Diseases/etiology , Adolescent , Child , Confidence Intervals , Craniofacial Abnormalities/complications , Female , Humans , Lingual Frenum/pathology , Lingual Frenum/surgery , Male , Malocclusion/etiology , Movement , Odds Ratio , Speech Disorders/etiology , Speech Therapy , Tongue Diseases/classification , Tongue Diseases/physiopathology , Tongue Diseases/surgery , Treatment Outcome
18.
Med. oral ; 5(1): 47-53, ene. 2000.
Article in Es | IBECS | ID: ibc-11462

ABSTRACT

El carcinoma fusocelular es una variedad del carcinoma de células escamosas, de infrecuente presentación e histogénesis controvertida. Aunque puede afectar a cualquier parte de la economía, se localiza más frecuentemente en las vías aerodigestivas superiores. La mayoría de los ubicados en la cavidad oral son invasores y tienen mal pronóstico.Presentamos un caso de carcinoma de células fusiformes que afectaba al espacio masticador, encontrándose la mucosa supraadyacente libre de neoplasia. Hacemos especial hincapié en la metodología histológica e inmunohistoquímica (positividad para las citoqueratinas de bajo peso molecular y, con menor intensidad, para las citoqueratinas de alto peso molecular y la vimentina) empleada para su diagnóstico, así como una valoración de los factores pronósticos y las posibilidades terapéuticas que ofrece esta infrecuente neoplasia (AU)


Subject(s)
Humans , Carcinoma/diagnosis , Carcinoma/therapy , Mouth Neoplasms/diagnosis , Mouth Neoplasms/therapy , Immunohistochemistry , Prognosis
19.
Vet. Méx ; 25(2): 127-31, abr.-jun. 1994. tab
Article in Spanish | LILACS | ID: lil-149575

ABSTRACT

Se colectaron 16 eyacuaciones de 4 sementales caprinos por medio de la vagina artificial y se evaluaron las siguientes características: volumen, concentración espermática, motilidad progresiva y morfología acrosomal. Cada eyaculado se dividió en dos partes y se diluyó con Tris-Yema de huevo. El semen diluido se envasó en pajillas de 0.25 y 0.5 ml, cada una conteniendo 100millones de espermatozoides mótiles. Las pajillas se congelaron en vapores de nitrógeno líquido y se descongelaron a 37ºC/15 seg. o a 55ºC/8 seg. En las muestras descongeladas se determinó la motilidad progresiva, la recuperación de espermatozoides mótiles y el daño acrosomal. La motilidad progresiva al descongelar las pajillas de 0.5 ml fue de 62.8 por ciento (37ºC/15 seg) y 58.7 por ciento (55ºC/8 seg) y en la pajilla de 0.25 ml de 59 por ciento (37ºC/15 seg) y 60 por ciento (55ºC/8 seg) (P> 0.05). El daño acrosomal fue mayor (12.3 por ciento) en las pajillas de 0.5 ml descongeladas a 55ºC/8 seg que en los demás tratamientos (P < 0.05). La descongelación del semen caprino a 37ºC/15 seg es una técnica más sencilla a nivel de campo e implica menor riesgo. La motilidad progresiva y el porcentaje de daño acrosomal del semen caprino obtenidos en este trabajo, se encuentran dentro de los criterios establecidos para su aplicación en la inseminación artificial


Subject(s)
Animals , Antelopes/physiology
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