Proposta de sequenciamento das projeções mielográficas na identificação de compressão da medula espinhal em cães com doença do disco intervertebral cervical / [Sequential proposal in the myelographic views for detection of spinal cord compression in dogs with cervical intervertebral disc disease]

O objetivo deste trabalho foi verificar em quais projeções foi possível identificar compressão da medula espinhal em cães com doença do disco intervertebral (DDIV) cervical e propor um sequenciamento das projeções a ser realizado no exame mielográfico dessa região. Foram avaliadas quatro projeções mielográficas (lateral, ventrodorsal e oblíquas esquerda e direita) de 41 pacientes diagnosticados com DDIV cervical. Em 40 pacientes (97,5%), foi possível identificar compressão da medula espinhal na projeção lateral; em 22 (53,6%), nas oblíquas; e em 11 (26,8%), na ventrodorsal (P<0,05). Havia lateralização da compressão em 22 (53,6%) pacientes; 100% delas (n=22) foram detectadas pelas projeções oblíquas e 50% (n=11) pela ventrodorsal. Em 10 (24,4%) cães, foi observado mais que um local de compressão, tendo as projeções ventrodorsal e oblíquas auxiliado na definição do local de compressão em 50% e 70%, respectivamente. Pode-se concluir que todas as projeções mielográficas estudadas permitem identificar compressão na medula espinhal em cães com DDIV cervical, sendo a incidência lateral a que mais a revelou, seguida das oblíquas e da ventrodorsal, estabelecendo-se, assim, uma proposta de sequenciamento das projeções mielográficas a serem realizadas para essa região.(AU)

The aim of this study was to verify in which of the myelographic views it was possible to identify spinal cord compression in dogs with cervical intervertebral disc disease (IVDD), and to establish a sequence in which myelographic views should be obtained for this region. Four myelographic views (lateral, ventrodorsal, left oblique and right oblique) of 41 patients diagnosed with cervical IVDD were evaluated. In 40 patients (97.5%) it was possible to identify spinal cord compression by lateral view, 22 (53.6%) by the oblique view, and 11 (26.8%) by the ventrodorsal view (P< 0.05). There were lateralized compressions in 22 (53.6%) patients, detected by all oblique views (100%) and by 11 (50%) of the ventrodorsal views. In 10 (24.4%) dogs, more than one compression site was observed, where the ventrodorsal view helped to decide the site in 50% of the cases and oblique in 70%. It can be concluded that all the tested myelographic views allow the identification of spinal cord compressions in dogs with cervical IVDD, the lateral view being the most relevant, followed by the oblique and ventrodorsal view, therefore establishing a sequence of myelographic views should be obtained for this region.(AU)

Acute hypertensive uveitis as the first presentation of multiple sclerosis

Ophthalmic manifestations of multiple sclerosis are frequent including acute optic neuritis, ocular motor disturbances and intermediate uveitis. We report an unusual case of multiple sclerosis presenting as acute hypertensive uveitis. A 56-year-old man was referred by his family doctor with a 2-week history of right eye pain and decreased vision. Best-corrected visual acuity was Count Fingers on the right and 6/9-2 on the left. Intraocular pressure was 55mmHg and 14 mmHg on the right and left respectively. He had a right relative pupillary defect and a left internuclear ophthalmoplegia. Vitreous cells were present in the right eye and there was peripheral sclerosis and periphlebitis superior temporally. MRI Brain and Spine revealed multiple T2 hyperintense lesions consistent with multiple sclerosis. Multiple sclerosis may present initially with an acute elevation of intraocular pressure and intermediate uveitis.

Carcinoma escamoso de cavidad oral en paciente menor de edad / Oral squamous cell carcinoma in an underage patient

El objetivo de este caso es profundizar en el conocimiento del cáncer de lengua en pacientes jóvenes. Se trata de un caso clínico: Mujer de 17 años sin antecedentes ni hábitos tóxicos, que acude por presentar tumoración en hemilengua izquierda con biopsia de carcinoma escamoso. En TAC: Lesión en hemilengua izquierda que afecta al suelo de la boca. Adenopatías bilaterales. Estadío IVA. Se decide quimioterapia de inducción seguido de quimioradioterapia. Presentó recidiva tras 5 meses de seguimiento, y se realizó glosectomía parcial. Tras 12 meses libre de enfermedad presentó nueva recidiva local que se intervino quirúrgicamente. Actualmente en seguimiento y sin signos de enfermedad. Existen estudios que indican que la prevalencia del cáncer de cabeza y cuello está aumentando en pacientes jóvenes; comportándose de forma diferente entre unos grupos de edad y otros. Concluimos que los factores epidemiológicos, genéticos, etiológicos y clinicopatológicos de los pacientes jóvenes con cáncer de cabeza y cuello sugieren una divergencia biológica frente a lo que ocurre con dichos cánceres en pacientes añosos. La mejora del conocimiento de la biología molecular es necesaria para establecer el éxito en la prevención y el tratamiento de dichos pacientes.

To delve into the knowledge of tongue cancer in young patients. Case We presented a 17 years-old female, without tobacco and alcohol exposure, referred to Oral and Maxillofacial department with a squamous cell carcinoma in the tongue with bilateral cervical metastasis. We decided, in a multidisciplinary team, to treat her with chemotherapy followed by chemoradiotherapy. She had two local recurrences 5 and 12 months after the treatment which we treated with surgery both. Afher that, we follow her every month and she is without recurrences. Several reports suggest increasing incidence trends of head and neck cancer in young patients, disproportional to the patients above 45 years old. Moreover, the majority of young non-smoking non-drinking head and neck cancer patients is female. This disparity suggests that the pathogenesis of head and neck cancer in young patients differs from head and neck cancer development in old patients. Conclusion: The unique epidemiologic, genetic, etiologic, and clinicopatho- logic characteristics of young-onset HNSCC suggests a divergent biology from HNSCC occurring in older patients. Improved definition of this biology is needed to establish successful preventive and treatment de intensification efforts.

Malformación arteriovenosa en cavidad oral: a propósito de un caso y revisión de la literatura / Arteriovenous malformation in the oral cavity: a case report and a literature review

Las malformaciones arteriovenosas (malformaciones A-V) de alto flujo en la cavidad oral no son una patología frecuente, existen pocos datos publicados sobre su tratamiento y sigue siendo muy controvertido debido a la alta tasa de complicaciones vitales que conlleva y la alta tasa de recurrencia. El único tratamiento curativo es la resección radical, con las consecuencias no sólo vitales, sino también desfigurativas que supone. Presentamos un caso de malformación A-V congénita en región submandibular, suelo de boca derecho y lengua, que tras varios episodios de dolor y aumento de tamaño, sin realizar ninguna medida agresiva, en el último control se observa trombosis espontánea de la misma. En este caso, la evolución con un tratamiento expectante sin cirugía, ha sido la trombosis con mejoría clínica, sin presentar nuevo episodio de aumento de tamaño, ni sangrado doce meses después, a pesar de seguir con una lesión de gran tamaño en el suelo de la boca.

he high-flow arteriovenous malformations (A-V malformations) in oral cavity are not a common disease, there are few published data on treatment and it remains highly controversial because of the high rate of vital complications and the high rate of recurrence. The only curative treatment is radical resection, with not only vital consequences but also the disfigurement involved. We present a case of congenital A-V malformation in right submandibular region, floor of the mouth and tongue. After several episodes of pain and enlargement, in the last control without any aggressive action, the lesion presented spontaneous thrombosis. In this case, despite following with a large lesion on the floor mouth, the evolution with an expectant non-surgical treatment has been the thrombosis with clinical improvement, without presenting new episode of enlargement, nor bleeding twelve months later.

The effect of renal cortical thickness on the treatment outcomes of kidney stones treated with shockwave lithotripsy

PURPOSE: Because the shock wave passes through various body tissues before reaching the stone, stone composition may affect the treatment efficacy of shock wave lithotripsy (SWL). We investigated the effect of various tissue components along the shock wave path on the success of SWL. MATERIALS AND METHODS: From October 2008 to August 2010, a total of 206 patients with kidney stones sized 5 to 20 mm were prospectively recruited for a study of the factors that affect the outcome of treatment with a Sonolith Vision lithotripter. Successful SWL was defined as either stone-free status or residual fragments <4 mm at 12 weeks. Logistic regression analysis was performed to assess the factors that predicted treatment outcomes. Potential predictors included the patient's age, shock wave delivery rate, stone volume (SV), mean stone density (MSD), skin-to-stone distance (SSD), and the mean thickness of the three main components along the shock wave path: renal cortical thickness (KT), muscle thickness (MT), and soft-tissue thickness (ST). RESULTS: The mean age of the patients was 53.8 years (range, 25-82 years). The overall treatment success rate after one session of SWL was 43.2%. The mean KT, MT, and ST were 26.9, 16.6, and 40.8 mm, respectively. The logistic regression results showed that a slower shock wave delivery rate, smaller SV, a lower MSD, and a thicker KT were found to be significant predictors for successful SWL. SSD, MT, and ST were not predictors of successful treatment. CONCLUSIONS: Among the main tissue components along the shock wave path, a thicker KT was a favorable factor for successful SWL after adjustment for SV, MSD, and the shock wave delivery rate.

A Filipino with systemic lupus erythematosus-scleroderma overlap syndrome

BACKGROUND: Overlap syndrome is a large group of condition that manifests with symptoms from two or more autoimmune conditions and satisfies the diagnostic criteria of at least two connective tissue diseases in the same patient. This condition might be unrecognized by the primary care physician and underreported.CASE: A 30-year-old female had a 10-week history of non-pruritic erythematous macules on her face that gradually spread to her trunk, and upper extremities which progressed to hyperpigmented macules and tightening of the skin. There was note of hair loss, anemia, ulcerating wounds on distal extremities and finger tips. She then developed generalized body weakness and easy fatigability. Physical and laboratory examinations were consistent with SLE and scleroderma. 2D-echocardiogram showed a large pericardial effusion and pulmonary hypertension. She was treated with prednisone and azathioprine which in less than a week, diminished significantly the pericardial effusion. Patient also complained of a few day history of unilateral blurring of vision which turned out to be central retinal artery occlusion.CONCLUSION: Overlap syndrome is a disease entity to consider in patients with multiple symptoms that cannot be classified into one connective tissue disease. Treatment of this disease should be individualized and based on the connective tissue diseases involved.

Prevalence of chronic renal failure in the diabetic population at the University Hospital of the West Indies

The prevalence of chronic renal failure (CRF) in 460 patients with diabetes mellitus attending the diabetic outpatient clinic at the University Hospital of the West Indies in Jamaica was determined from a review of medical records. The prevalence of CRF was 10 (39/386) in the diabetic clinic population. Significant positive associations with CRF were found with male gender (20/98, 20 vs 19/287, 7; odds ratio (OR), 3.24; p = 0.001); age 60 years and older (22/162; 14 vs 17/221, 8; OR, 2.01; p = 0.04); fasting blood glucose concentrations exceeding 8.0 mmol/L (22/162, 13 vs 12/182, 7; OR, 2.08; p = 0.05); the presence of significant proteinuria as a marker for outcome (13/39, 33 vs 48/346, 14; OR, 3.60; p = 0.02) and peripheral vascular disease (6/20, 30 vs 139/386, 10; OR, 4.75; p = 0.005). The prevalence of CRF did not differ significantly between patients with Type 1 and Type 2 diabetes mellitus. Also, the presence of CRF was not significantly associated with duration of diabetes mellitus, type of hypoglycaemic agents used, or history of hypertension. However, the presence of persistent proteinuria was significantly associated with duration of diabetes mellitus exceeding five years (46/255, 17 vs 11/149, 7; OR, 2.52; p = 0.005) and a history of hypertension (41/235, 17 vs 20/198, 10; OR, 1.88; p = 0.03) but not with age or gender. This study emphasizes the need to evaluate patients with diabetes mellitus for renal impairment so that intervention strategies may be adopted early to delay progression to endstage renal disease

Leprosy in the Eastern Province of Saudi Arabia

A study was conducted to establish age and sex distribution of leprosy, the type, incidence and prevalence of this disease and the outcome of control measures. From January 1983 to December 1986, 185 consecutive new leprosy patients were diagnosed by consultant dermatologists of the Ministry of Health in the Eastern Province. Of the patients, 71 were Saudis and 114 non-Saudis, 88 came from South India, ten from Sri Lanka, seven from Thailand, three from the Philippines. two from Yemen and one each from Pakistan, Bangladesh, South Korea and Indonesia. Among the Saudis men outnumbered women in the ratio of 3:1, with a mean age 32.2 years and range of 8-80 years. In the non-Saudi patients men outnumbered women in the ratio of 15:1, with a mean age of 35.6 years and range of 9-57 years. Overall, the disease was more prevalent in the age-group 21-40 years, although other age-groups were also affected. Tuberculoid leprosy was significantly more common in Saudi than in non-Saudi patients [0.01

How many channels should there be in a gap junction?

La resistencia de las electrotónicas (uniones comunicantes) formadas entre los axones laterales gigantes del cangrejo de río ha sido medicda en preparaciones acopladas y desacopladas. Por otra parte el número de partículas sinápticas se ha contado en ambas condiciones. De estos dos grupos de datos se puede concluir que las partículas, agrupadas en placas, que se observan mediante criofractura representan canales comunicantes y que estos están abiertos. Basándonos en estos datos y en resultados publicados obtenidos en pares aislados de células acopladas se ha encontrado que existe una relación inversa entre la resistencia de entrada de las células y el número estimado de canales comunicantes abiertos entre ellas. Esta relación se aplica tanto a células excitables como a las no excitables

Serious infection due to an outbreak of aminoglycoside resistant pseudomonas aeruginosa serotype 0: 12,pyocine type 1b, in an intensive care unit

An outbreak of aminoglycoside-resistant pseudomonas aeruginosa occurred during the months of November 1983 to February 1984, among 14 patients admitted to the ICU of Dammam Central hospital. All the strains were resistant to gentamicin, tobramycin, sisomicin and carbenicillin; and six strains were in addition, resistant to amikacin. The index case appeared to be a patient admitted with multiple fractures following a motor vehicle accident from whom the resistant strain was isolated on the fourth day following admission to the unit. The outbreak was controlled only after the unit was closed for 1 week. Epidemiological investigations failed to reveal the mode of transmission, but the sinks were found to harbour this strain in large quantities. O-serotyping showed all the strains belonged to serotype 0:12. They all belonged to pyocine type 1 b and were lysed by a single phage [phage 68]. Aminoglycoside degrading enzymes were not detected in ultrasonic extracts of any of the strains

Alcaligenes faecalis meningitis complicated by hydrocephalus in a premature neonate

A premature infant with Alcaligenes faecalis meningitis complicated by hydrocephalus is described. The definitive microbiological diagnosis was made on ventricular CSF obtained at VP shunt operation. He died 5 days after operation due to Serratia marcescens septicaemia. Emphasis is placed on early diagnosis and treatment of neonatal meningitis