Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 57
Filter
1.
Acta Ortop Mex ; 38(3): 172-178, 2024.
Article in Spanish | MEDLINE | ID: mdl-38862147

ABSTRACT

INTRODUCTION: intravenous antibiotic prophylaxis has significantly reduced the incidence of periprosthetic joint infection (PJI) in knee surgeries. However, for patients colonized with methicillin-resistant Staphylococcus aureus (MRSA) or those at risk of colonization, prophylaxis should include vancomycin. Intraosseous (IO) administration of vancomycin could enhance its effectiveness in total knee arthroplasty (TKA). MATERIAL AND METHODS: a retrospective review was conducted, including 143 patients at risk of PJI scheduled for TKA who received IO vancomycin along with intravenous (IV) cefazolin, referred to as group I (GI), between May 2021 and December 2022. The occurrence of complications in the first three postoperative months was evaluated. Results were compared with 140 patients without risk factors who received standard IV prophylaxis, designated as group II (GII). RESULTS: in GI, 500 mg of IO vancomycin was administered, injected into the proximal tibia, in addition to standard IV prophylaxis. In GII, patients received only IV cefazolin. The incidence of complications was 1.64% in GI and 1.4% in GII. The PJI rate at 90 postoperative days was 0.69% in GI and 0.71% in GII. CONCLUSIONS: IO vancomycin administration, along with standard IV prophylaxis, provides a safe and effective alternative for patients at risk of MRSA colonization. This approach minimizes complications associated with IV vancomycin use and addresses logistical challenges of timely administration.


INTRODUCCIÓN: la profilaxis antibiótica intravenosa ha reducido significativamente la incidencia de infección articular periprotésica (IAP) en cirugías de rodilla. No obstante, para pacientes colonizados con Staphylococcus aureus resistente a meticilina (SARM) o aquellos con riesgo de colonización, la profilaxis debe incluir vancomicina. La administración intraósea de vancomicina podría potenciar su efectividad en la artroplastía total de rodilla. MATERIAL Y MÉTODOS: se realizó una revisión retrospectiva que incluyó a 143 pacientes en riesgo de IAP programados para artroplastía total de rodilla que recibieron vancomicina intraósea junto a cefazolina intravenosa (IV), a quienes denominamos grupo I (GI), entre mayo de 2021 y diciembre de 2022. Se evaluó la aparición de complicaciones en los primeros tres meses postoperatorios. Los resultados se compararon con 140 pacientes sin factores de riesgo que recibieron profilaxis intravenosa estándar, denominados grupo II (GII). RESULTADOS: en el GI, se administraron 500 mg de vancomicina intraósea, inyectados en la tibia proximal, además de la profilaxis intravenosa estándar. En el GII, los pacientes recibieron sólo cefazolina intravenosa. La incidencia de complicaciones fue de 1.64% en el GI y de 1.4% en el GII. La tasa de IAP a los 90 días postoperatorios fue de 0.69% en el GI y de 0.71% en el GII. CONCLUSIONES: la administración de vancomicina intraósea, junto con la profilaxis intravenosa estándar, ofrece una alternativa segura y eficaz para pacientes con riesgo de colonización por SARM. Este enfoque minimiza las complicaciones asociadas con el uso intravenoso de vancomicina y soluciona los desafíos logísticos de la administración oportuna.


Subject(s)
Anti-Bacterial Agents , Antibiotic Prophylaxis , Arthroplasty, Replacement, Knee , Cefazolin , Prosthesis-Related Infections , Vancomycin , Humans , Vancomycin/administration & dosage , Vancomycin/therapeutic use , Retrospective Studies , Arthroplasty, Replacement, Knee/adverse effects , Male , Female , Aged , Anti-Bacterial Agents/administration & dosage , Anti-Bacterial Agents/therapeutic use , Antibiotic Prophylaxis/methods , Middle Aged , Prosthesis-Related Infections/prevention & control , Prosthesis-Related Infections/etiology , Cefazolin/administration & dosage , Cefazolin/therapeutic use , Methicillin-Resistant Staphylococcus aureus/drug effects , Infusions, Intraosseous , Aged, 80 and over , Staphylococcal Infections/prevention & control
2.
Acta Ortop Mex ; 38(2): 95-100, 2024.
Article in Spanish | MEDLINE | ID: mdl-38782474

ABSTRACT

INTRODUCTION: one- or two-stage total revision is considered the gold standard for the treatment of hip arthroplasty with chronic infection. However, during the removal of a fixed prosthetic component, the host bone may be damaged, making definitive prosthetic reimplantation difficult. OBJECTIVE: we present a series of patients treated for chronic periprosthetic hip infection with preservation of one fixed component. MATERIAL AND METHODS: this study included 12 patients with hip arthroplasty and chronic periprosthetic infection scheduled for one or two-stage partial replacement with retention of a fixed component between June 2015 and January 2021. The minimum follow-up period was 2 years (mean, 4.08 years). None of the 12 patients in this series was lost to follow-up. We evaluated the evolution through clinical examination, Harris Hip Score, laboratory and radiological studies. RESULTS: at a mean follow-up of 4.08 years after prosthetic reimplantation, two of the 12 patients had recurrence of infection (16.6%), and the mean Harris hip score reached 63.6 points at the last follow-up assessment. CONCLUSIONS: fixed implant preservation may be an acceptable option for patients with chronic periprosthetic hip infection when removal of the fixed component results in significant bone loss compromising future reimplantation. However, more studies are required on this treatment method.


INTRODUCCIÓN: la revisión total en una o dos etapas se considera el estándar de oro para el tratamiento de la artroplastía de cadera con infección crónica. Sin embargo, durante la extracción de un componente protésico fijo, el hueso del huésped puede dañarse, lo que dificulta la reimplantación definitiva de la prótesis. OBJETIVO: presentamos una serie de pacientes tratados por infección crónica periprotésica de cadera con la preservación de un componente fijo. MATERIAL Y MÉTODOS: este estudio retrospectivo incluyó a 12 pacientes con artroplastía de cadera e infección periprotésica crónica programadas para revisión parcial en una o dos etapas con retención de un componente fijo entre Junio de 2015 y Enero de 2021. El período mínimo de seguimiento fue de dos años (media, 4.08 años). Ninguno de los 12 pacientes de esta serie se perdió en el seguimiento. Evaluamos la evolución a través del examen clínico, puntuación de cadera de Harris, estudios de laboratorio y radiológicos. RESULTADOS: con un seguimiento promedio de 4.08 años después de la reimplantación protésica, dos de los 12 pacientes presentaron recurrencia de la infección (16.6%) y la puntuación media de Harris en la cadera alcanzó 63.6 puntos en la última evaluación de seguimiento. CONCLUSIONES: la preservación del implante fijo puede ser una opción aceptable para pacientes estrictamente seleccionados con infección periprotésica crónica de cadera cuando la extracción del componente fijo produce una pérdida ósea significativa que compromete la reconstrucción futura. Se necesitan más estudios sobre este método de tratamiento.


Subject(s)
Arthroplasty, Replacement, Hip , Hip Prosthesis , Prosthesis-Related Infections , Reoperation , Humans , Prosthesis-Related Infections/etiology , Male , Female , Middle Aged , Arthroplasty, Replacement, Hip/methods , Aged , Chronic Disease , Hip Prosthesis/adverse effects , Follow-Up Studies , Retrospective Studies , Adult , Recurrence
3.
J Healthc Qual Res ; 2024 Apr 13.
Article in English | MEDLINE | ID: mdl-38616433

ABSTRACT

BACKGROUND: Improper compliance with antibiotic prophylaxis (AP) in surgery is associated with an increased risk of surgical site infection (SSI), and impacts the efficiency of healthcare. OBJECTIVE: Evaluate the impact of an intervention in compliance with AP in selected surgical procedures and its effect on antibiotic consumption and cost. METHODS: A prospective interventional study was performed in a community hospital from January to December 2022. The baseline period was considered January-April 2022 and the intervention period May-December 2022. All patients who underwent cesarean section, appendectomies, hernia surgery, open reduction and internal fixation (ORIF), abdominoplasty, and cholecystectomy during the study period were selected. The intervention includes staff education, pharmacy interventions, monitoring the quality of prescriptions and feedback, and improved role of anesthesia staff, and department champions. RESULTS: The study involved 192 and 617 surgical procedures in the baseline and intervention periods respectively. The compliance with timing, selection, dose, and discontinuation achieved 100%, 99.2%, and 97.6% from baseline figures of 92.7%, 95.8%, and 81.3%, respectively. The antibiotic consumption was reduced by 55.1% during the intervention with a higher contribution of other antibiotics (94.1% reduction) in comparison with antibiotics as per policy (31.2% reduction). The cost was reduced by 47.2% (antibiotic as per policy 31.9%, other antibiotics 94.2%). CONCLUSION: The implemented strategy was effective in improving the quality of antibiotic prophylaxis with a significant impact in reducing antibiotic consumption and cost.

4.
J Dairy Sci ; 106(7): 5115-5126, 2023 Jul.
Article in English | MEDLINE | ID: mdl-37164866

ABSTRACT

This study aimed to determine the effect of 2 simple breeding strategies combining artificial insemination (AI) after detection of estrus (AIED) and timed AI (TAI) on first-service fertility in lactating Holstein cows. Weekly, lactating Holstein cows (n = l,049) between 40 and 46 d in milk (DIM) were randomly assigned to initiate 1 of 2 breeding strategies for first service: Presynch-14 and PG+G. Presynch-14 is a presynchronization strategy with 2 PGF2α treatments 14 d apart with the last PGF2α 14 d before the initiation of the Ovsynch protocol. Cows treated with PG+G receive a simpler presynchronization program that uses PGF2α and GnRH simultaneously 7 d before Ovsynch. In both treatments, cows detected in standing estrus by tail chalk at any time ≥55 DIM were inseminated, and treatment was discontinued (n = 525). Cows completing treatment received TAI from 78 to 84 DIM (n = 526). In a subgroup of cows that received TAI, blood was collected (n = 163) to assess circulating concentrations of progesterone, and ultrasonographic evaluations of ovaries were performed on the day of first GnRH of Ovsynch (n = 162) and PGF2α of Ovsynch (n = 122). The proportion of cows that received TAI was greater for PG+G compared with Presynch-14 (63.5 vs. 31.9%), which increased DIM at first service for cows treated with PG+G compared with Presynch-14 (75.5 ± 0.4 vs. 68.7 ± 0.4). For cows receiving TAI, the ovulatory response to first GnRH of Ovsynch (73.8 vs. 48.8%) and the proportion of cows with functional corpora lutea (92.6 vs. 73.1%) were greater for PG+G than Presynch-14. Cows treated with PG+G had greater overall pregnancy per AI (P/AI) 42 ± 7 d after AI (40.2 vs. 33.6%) and calving per AI (32.1 vs. 25.2%) than Presynch-14. For cows receiving AIED, treatment did not affect P/AI 42 ± 7 d after AI. However, for cows receiving TAI, PG+G increased P/AI compared with Presynch-14 (44.6 vs. 35.2%). Overall, cows receiving TAI had greater P/AI 42 ± 7 d after AI (42.5 vs. 31.5%) and calving per AI (34.1 vs. 23.7%) and decreased pregnancy loss (16.8 vs. 25.2%) than cows receiving AIED. In summary, PG+G increased the proportion of cows receiving TAI and the DIM at first service, P/AI, and calving per AI compared with Presynch-14 when both TAI programs were combined with AIED.


Subject(s)
Gonadotropin-Releasing Hormone , Lactation , Pregnancy , Female , Cattle , Animals , Estrus Synchronization/methods , Dinoprost/pharmacology , Estrus , Progesterone , Insemination, Artificial/veterinary , Insemination, Artificial/methods
6.
Rev. chil. obstet. ginecol ; 77(4): 249-254, 2012. ilus
Article in Spanish | LILACS | ID: lil-656338

ABSTRACT

Antecedentes: La ventriculomegalia fetal es un signo ecográfico muy sensible para las alteraciones del sistema nervioso central fetal. La morbilidad asociada a la misma depende principalmente de la etiología y de la presencia de otras malformaciones asociadas. Si es aislada y no progresiva se puede preveer un resultado posnatal favorable hasta en el 70 por ciento de los casos aunque hay una gran disparidad de cifras entre distintos centros y autores. Objetivo: Establecer la relación entre ventriculomegalia y pronóstico perinatal. Método: Se han revisado 60 casos diagnosticados mediante ecografía prenatal en el Hospital Universitario de Canarias siguiendo los criterios ecográficos de ventriculomegalia (astas posteriores mayores de 10 mm). Se realizaron cariotipos y serología materna y en líquido amniótico para completar el estudio. Resultados: Hubo un total de 23 interrupciones voluntarias de la gestación y 28 recién nacidos sin secuelas (47 por ciento). Un 70 por ciento de las ventriculomegalias aisladas correspondieron a recién nacidos sin secuelas. El 10 por ciento de las ventriculomegalias aparecieron en fetos con aneuploidías. Conclusión: El pronóstico fue favorable en los casos de ventriculomegalia no progresiva y aislada. La medida de la ventriculomegalia no predice el resultado. La variabilidad de resultados en la literatura obliga a cada centro a disponer de sus protocolos y datos para aconsejar a la pareja que ha de tomar una decisión sobre el futuro de su embarazo.


Background: Fetal ventriculomegaly is the most sensitive sonographic sign for central nervous system anomalies. Neonatal morbidity and mortality depends on the etiology of the ventriculomegaly and the presence of other malformations. Isolated non-progressive ventriculomegaly is associated with 70 percent favorable results, with a great disparity among studies. Aims: To establish the relationships between ventriculomegaly and perinatal outcome. Methods: The authors reviewed 60 cases of prenatally diagnosed fetal ventriculomegaly in the Canary Islands University Hospital. An ultrasonographic measurement of the lateral ventricles of 10 mm or more was considered as ventriculomegaly. Fetal and maternal serology was performed as well as fetal karyotyping. Results: 23 patients decided to terminate the pregnancy due to unfavorable prognosis. In 28 cases outcome was favorable. 70 percent of isolated ventriculomegaly corresponded to healthy newborns. 10 percent of the fetuses had aneuploidies. Conclusion: Prognosis is favorable if ventriculomegaly is isolated and non-progressive. Measurement of the lateral ventricle does not predict outcome. Disparity of results in literature makes it necessary for each Hospital to rely on their own data and guidelines to assess parents on the fate of the pregnancy.


Subject(s)
Infant, Newborn , Fetal Diseases/diagnosis , Ultrasonography, Prenatal , Cerebral Ventricles/abnormalities , Cerebral Ventricles , Abortion, Induced , Aneuploidy , Congenital Abnormalities/epidemiology , Chromosome Aberrations , Fetal Diseases/epidemiology , Gestational Age , Pregnancy Outcome , Prognosis , Retrospective Studies
8.
Actas Dermosifiliogr ; 98(4): 268-70, 2007 May.
Article in Spanish | MEDLINE | ID: mdl-17506959

ABSTRACT

Acroangiodermatitis or pseudo-Kaposi sarcoma is an angioproliferative, self-limited entity that includes a group of diseases, congenital or acquired, with cutaneous lesions similar to Kaposi sarcoma (KS). This term can lead to confusion because it comprises several entities that are completely different, nonetheless, it has an important clinical value as it guides the diagnosis and management of these patients. We report the case of a 67-year-old patient with lesions of acroangiodermatitis in both forearms secondary to arteriovenous shunts from hemodialysis. Doppler ultrasound showed a former arteriovenous fistula in addition to the one already known. Immunohistochemical study showed CD34+ staining in endotelial cells and absence of HHV-8 expression.


Subject(s)
Arteriovenous Shunt, Surgical/adverse effects , Neovascularization, Pathologic/diagnosis , Postoperative Complications/diagnosis , Sarcoma, Kaposi/diagnosis , Skin Neoplasms/diagnosis , Aged , Antigens, CD34/analysis , Arm , Dermis/blood supply , Dermis/chemistry , Diagnosis, Differential , Endothelium, Vascular/pathology , Hemosiderin/analysis , Humans , Kidney Transplantation , Male , Neovascularization, Pathologic/etiology , Neovascularization, Pathologic/pathology , Postoperative Complications/etiology , Postoperative Complications/pathology
9.
Actas dermo-sifiliogr. (Ed. impr.) ; 98(4): 268-270, mayo 2007. ilus
Article in Es | IBECS | ID: ibc-053325

ABSTRACT

El término acroangiodermatitis o pseudosarcoma de Kaposi (PSK) se refiere a una entidad angioproliferativa autolimitada que incluye un grupo de enfermedades, congénitas o adquiridas, con lesiones cutáneas similares al sarcoma de Kaposi (SK). Este término puede llevar a confusión puesto que engloba varias entidades completamente diferentes, sin embargo, tiene un valor clínico importante, ya que orienta al diagnóstico y al manejo de estos enfermos. Presentamos el caso de un paciente de 67 años con lesiones de acroangiodermatitis en ambos antebrazos secundarias a fístulas arteriovenosas para hemodiálisis. La eco-doppler permitió descubrir una fístula arteriovenosa antigua, además de la que ya conocíamos. Las técnicas de inmunohistoquímica demostraron CD34 + en las células endoteliales y la expresión del herpesvirus 8 humano (HHV8) fue negativa


Acroangiodermatitis or pseudo-Kaposi sarcoma is an angioproliferative, self-limited entity that includes a group of diseases, congenital or acquired, with cutaneous lesions similar to Kaposi sarcoma (KS). This term can lead to confusion because it comprises several entities that are completely different, nonetheless, it has an important clinical value as it guides the diagnosis and management of these patients. We report the case of a 67-year-old patient with lesions of acroangiodermatitis in both forearms secondary to arteriovenous shunts from hemodialysis. Doppler ultrasound showed a former arteriovenous fistula in addition to the one already known. Immunohistochemical study showed CD34+ staining in endotelial cells and absence of HHV-8 expression


Subject(s)
Male , Aged , Humans , Sarcoma, Kaposi/diagnosis , Acrodermatitis/diagnosis , Anastomosis, Surgical/adverse effects , Acrodermatitis/etiology , Antigens, CD34/analysis , Renal Dialysis/adverse effects , Diagnosis, Differential
10.
Actas Dermosifiliogr ; 98(2): 105-8, 2007 Mar.
Article in Spanish | MEDLINE | ID: mdl-17397597

ABSTRACT

Sweet syndrome is one of the cutaneous processes more frequently associated to systemic diseases. Its association to the systemic inflammatory response syndrome has rarely been described. We report a case of chronic and relapsing Sweet syndrome associated to a chronic and idiopathic systemic inflammatory response syndrome that lasted seven years and proved fatal to the patient. Among the rare cases of Sweet syndrome associated to a systemic inflammatory response syndrome that have been described there have not been any fatal cases as occurred with our patient.


Subject(s)
Sweet Syndrome/etiology , Systemic Inflammatory Response Syndrome/complications , Aged , Anti-Inflammatory Agents/therapeutic use , Azathioprine/therapeutic use , Biopsy , Chronic Disease , Colchicine/therapeutic use , Fatal Outcome , Femur Head Necrosis/etiology , Hepatitis C/complications , Humans , Male , Pancytopenia/etiology , Prednisone/therapeutic use , Sweet Syndrome/pathology
11.
Actas dermo-sifiliogr. (Ed. impr.) ; 98(2): 105-108, mar. 2007. ilus
Article in Es | IBECS | ID: ibc-052722

ABSTRACT

El síndrome de Sweet es uno de los procesos cutáneos ligados con mayor frecuencia a enfermedades de los órganos internos. Su asociación al síndrome de respuesta inflamatoria sistémica ha sido raramente descrita. Presentamos un caso de síndrome de Sweet de evolución crónica y recidivante asociado a un síndrome de respuesta inflamatoria sistémica crónico idiopático de 7 años de evolución que llevaron a la muerte del paciente. De los raros casos descritos de síndrome de Sweet asociado a síndrome de respuesta inflamatoria sistémica, no hay ninguno descrito que haya llevado a la muerte del paciente como en nuestro caso


Sweet syndrome is one of the cutaneous processes more frequently associated to systemic diseases. Its association to the systemic inflammatory response syndrome has rarely been described. We report a case of chronic and relapsing Sweet syndrome associated to a chronic and idiopathic systemic inflammatory response syndrome that lasted seven years and proved fatal to the patient. Among the rare cases of Sweet syndrome associated to a systemic inflammatory response syndrome that have been described there have not been any fatal cases as occurred with our patient


Subject(s)
Male , Middle Aged , Humans , Sweet Syndrome/diagnosis , Sweet Syndrome/drug therapy , Cyclosporine/therapeutic use , Biopsy/methods , Hypergammaglobulinemia/diagnosis , Prednisone/therapeutic use , Azathioprine/therapeutic use , Colchicine/therapeutic use , Systemic Inflammatory Response Syndrome/complications , Systemic Inflammatory Response Syndrome/diagnosis , Pneumonia/complications , Hypergammaglobulinemia/complications , Shock, Septic/complications , Respiration, Artificial
12.
Eur J Dermatol ; 15(3): 182-5, 2005.
Article in English | MEDLINE | ID: mdl-15908304

ABSTRACT

Necrobiotic xanthogranuloma (NXG) with paraproteinemia is a rare non-x histiocytosis with conspicuous lesions mainly located on the periorbital skin. A 68-year-old woman, with a previous history of lymphoplasmacytic lymphoma associated with IgG monoclonal gammopathy over a period of almost 4 years, presented typical lesions of NXG on the periorbital regions and left buttock. Treatment with dioxide carbon laser resulted in great improvement of cutaneous lesions, and no evidence of relapse after a 12-month follow-up. The association of NXG with lymphoplasmacytic lymphoma has not been previously described to our knowledge. The treatment of these lesions represents a true challenge for the clinician and palliative treatment of cutaneous lesions of NXG with CO(2) laser may constitute an alternative treatment in selected cases.


Subject(s)
Laser Therapy , Lymphoma/pathology , Necrobiotic Disorders/pathology , Paraproteinemias/pathology , Xanthomatosis/pathology , Aged , Biopsy, Needle , Female , Follow-Up Studies , Humans , Immunohistochemistry , Lymphoma/radiotherapy , Necrobiotic Disorders/radiotherapy , Paraproteinemias/radiotherapy , Risk Assessment , Treatment Outcome , Xanthomatosis/radiotherapy
14.
Radiat Prot Dosimetry ; 110(1-4): 699-700, 2004.
Article in English | MEDLINE | ID: mdl-15353733

ABSTRACT

Analysis of accident dosemeters usually involves the use of laboratory-based counting equipment. Gamma spectrometers are used for indium, copper and gold, and alpha-beta detectors for sulphur. This equipment is usually not easily transported due to the shielding required and the weight and delicacy of the counters. For intercomparison studies that require reading the dosemeters on site, a transportable system is required unless the site operating the study can count samples for all the participants. In the case of an actual accident these systems would have a difficulty in counting a large number of accident dosemeters. In an accident, personnel are usually subdivided according to their level of exposure. Those exposed to higher doses are treated immediately. An alternate system should be made available to handle the dosemeters worn by those personnel are likely to receive lower doses. Improvements in portable operational equipment for gamma and beta monitoring allow their use as spectrometers. Such a system was used for the SILENE intercomparison conducted at IRSN Valduc on 12 June and 19, 2002, and the preliminary results compared well with the other participants.


Subject(s)
Gamma Rays , Occupational Exposure/analysis , Radiation Protection/instrumentation , Radioactive Hazard Release , Radiometry/instrumentation , Risk Assessment/methods , Spectrum Analysis/instrumentation , Equipment Failure Analysis/instrumentation , European Union , France , Humans , Miniaturization/methods , Neutrons , Nuclear Reactors , Quality Assurance, Health Care/methods , Radiation Dosage , Radiation Protection/methods , Radiation Protection/standards , Radiometry/methods , Reference Standards , Relative Biological Effectiveness , Reproducibility of Results , Risk Factors , Safety Management/methods , Sensitivity and Specificity , Spectrum Analysis/standards , United States
16.
J Eur Acad Dermatol Venereol ; 18(5): 586-7, 2004 Sep.
Article in English | MEDLINE | ID: mdl-15324401

ABSTRACT

The pathogenetic mechanism of fixed drug eruption (FDE) is still unknown. One of the most common causes of FDE is the use of nonsteroidal antiinflammatory drugs (NSAIDs). Oxicams are in the NSAID group and piroxicam is one of the most used of these drugs. FDE caused by piroxicam is rare but a few cases have been reported. Patch tests are useful for diagnosing some cases of FDE; they give variable results on previously affected skin while no reaction appears on unaffected skin. Some cases of cross-sensitivity among piroxicam and other substances have been reported. We report two new cases of FDE due to piroxicam with negative patch test on normal skin and positive results on affected skin.


Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Drug Eruptions/diagnosis , Piroxicam/adverse effects , Adult , Anti-Inflammatory Agents, Non-Steroidal/administration & dosage , Diagnosis, Differential , Drug Eruptions/etiology , Drug Eruptions/pathology , Elbow , Female , Fibromyalgia/drug therapy , Humans , Middle Aged , Patch Tests , Piroxicam/administration & dosage , Rheumatic Diseases/drug therapy
17.
Rev Neurol ; 39(1): 12-7, 2004.
Article in Spanish | MEDLINE | ID: mdl-15257521

ABSTRACT

INTRODUCTION: Steinert's myotonic dystrophy (SMD) is a systemic-type dominant autosomal disease, with variable clinical expression. Recent magnetic resonance studies conducted in patients with this disease have described the presence of lesions in the white matter of the brain and there have also been reports of a correlation between these and the presence of cognitive disorders. Nevertheless, very little work has been published about the electroencephalographic (EEG) findings in this disease. PATIENTS AND METHODS: In this study both conventional and quantitative EEG were performed on 10 patients with SMD aged between 17 and 50 years. RESULTS: 90% of the patients showed a posterior alpha rhythm that was disorganised but which reacted on opening and closing the eyes, as well as the presence of continuous theta activity over the base activity that was bilaterally more pronounced towards the frontal-central regions. In the quantitative analysis we observed an increase in the absolute energies for the slow bands and a decrease for the fast bands on the frequency spectrum. In most patients (80%) spectral peaks were found within the theta range of frequencies as a correlate of the slow activity observed in the conventional analysis. CONCLUSIONS: It can be concluded that a quantitative EEG could be useful in the study of what, for many years, has been considered to be a 'neuromuscular' disease and that the use of other more precise methods, such as cerebral coherence and brain electrical tomography, could shed new light on the functional management of these patients.


Subject(s)
Electroencephalography/methods , Myotonic Dystrophy/diagnosis , Myotonic Dystrophy/physiopathology , Adolescent , Adult , Female , Humans , Male , Middle Aged , Retrospective Studies
18.
Rev Neurol ; 39(1)July 2004.
Article in Spanish | CUMED | ID: cum-40102

ABSTRACT

Steinert's myotonic dystrophy (SMD) is a systemic-type dominant autosomal disease, with variable clinical expression. Recent magnetic resonance studies conducted in patients with this disease have described the presence of lesions in the white matter of the brain and there have also been reports of a correlation between these and the presence of cognitive disorders. Nevertheless, very little work has been published about the electroencephalographic (EEG) findings in this disease. In this study both conventional and quantitative EEG were performed on 10 patients with SMD aged between 17 and 50 years. 90 percent of the patients showed a posterior alpha rhythm that was disorganised but which reacted on opening and closing the eyes, as well as the presence of continuous theta activity over the base activity that was bilaterally more pronounced towards the frontal-central regions. In the quantitative analysis we observed an increase in the absolute energies for the slow bands and a decrease for the fast bands on the frequency spectrum. In most patients (80 percent) spectral peaks were found within the theta range of frequencies as a correlate of the slow activity observed in the conventional analysis...(AU)


Subject(s)
Humans , Female , Adolescent , Adult , Middle Aged , Electroencephalography/methods , Myotonic Dystrophy/physiopathology , Myotonic Dystrophy/diagnosis
19.
Rev. méd. Chile ; 131(7): 735-740, jul. 2003.
Article in Spanish | LILACS | ID: lil-356067

ABSTRACT

BACKGROUND: Pilomatrixoma is a benign tumor of the skin, preferentially found in children. The final diagnosis is made by biopsy. High resolution ultrasound (US) is a non invasive method for its diagnosis. AIM: To describe the US findings in children with pilomatrixoma. MATERIAL AND METHODS: Fifty five patients with 62 clinically suspected pilomatrixomas were studied by US. All examinations were done with an ATL HDI 5000, linear 5-12 MHz transducer. Pathological study confirmed the diagnosis pilomatrixoma in 52 cases. RESULTS: Fifty of 52 pilomatrixomas were diagnosed by US, with a sensitivity of 96 per cent. The mean age of patients was 7.5 years. Forty seven lesions (90 per cent) were located in the head, neck or upper extremities and their mean size was 8.5 mm. Thirty two lesions were hypodermal, 14 were dermohypodermal and 6 were dermal. In 44 lesions the contour was regular and non delineated, 44 lesions were oval, 41 lesions had an acoustic shadow, 36 were echogenic or hyperechogenic, 31 had a peripheral halo (60 per cent), 55 had calcifications (98 per cent), nine had perilesional vessels, 2 had intratumoral vessels and 7 had inflammatory changes. US excluded the diagnosis of pilomatrixoma in 10 lesions formulating a correct differential diagnosis in eight, with a specificity of 80 per cent. CONCLUSIONS: Pilomatrixomas had two US types of presentation. The first is a well defined nodule with peripheral halo partially calcified or with microcalcifications. The second is a completely calcified nodule without peripheral halo and with a strong acoustic shadow. US is a useful, sensitive and specific diagnostic method for pilomatrixoma.


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Adult , Skin Neoplasms , Pilomatrixoma , Ultrasonography, Doppler, Color , Diagnosis, Differential , Skin Neoplasms/pathology , Pilomatrixoma/pathology
20.
J Invertebr Pathol ; 82(2): 119-27, 2003 Feb.
Article in English | MEDLINE | ID: mdl-12623312

ABSTRACT

Colombia is a tropical country located at the north of South America. It is considered to be one of the most important countries in terms of its biodiversity worldwide. One hundred and eight soil samples obtained from agricultural crops and wild ecosystems were evaluated in terms of the presence of Bacillus thuringiensis (Bt) native strains. One hundred and eight different Bt strains were isolated and characterized by the presence of crystal proteins by SDS-PAGE and a multiplex PCR with general and specific primers for cry1 and cry3, cry7, and cry8 gene detection. Most of the Bt strains (73%) reacted with the cry1 general primers; 27.8% of the Bt strains reacted with cry3, cry7, and cry8 general primers and 17.8% of strains did not react with any of these two sets of primers. Thirty different PCR profiles were found in the strains with cry1 genes when they were analyzed with specific primers (cry1A to cry1F). A high frequency of joint occurrence was observed for cry1Aa/cry1Ab, cry1Aa/cry1Ac, cry1Ab/cry1Ac, and cry1C/cry1D genes with a Pearson coefficient of 0.88, 0.74, 0.76, and 0.87, respectively. Other distinctive characteristics were found in the Colombian collection as the presence of 22.2% of native strains which presented, at the same time, lepidopteran and coleopteran active genes. Interesting relations were found as well between the cry gene distribution and the geographical areas sampled. Finally, some strains with moderate to high biopesticide activity against Spodoptera frugiperda (Lepidoptera) and Premnotrypes vorax (Coleoptera) insects were identified, this being important to explore future microbial strategies for the control of these crop pests in the region.


Subject(s)
Bacillus thuringiensis/genetics , Bacterial Proteins/genetics , Bacterial Toxins , Ecosystem , Endotoxins/genetics , Bacillus thuringiensis Toxins , Colombia , Gene Frequency , Hemolysin Proteins
SELECTION OF CITATIONS
SEARCH DETAIL
...