Alma Gabriela Valenzuela-Flores

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BACKGROUND Some sub-groups of cutaneous squamous cell carcinoma (CSCC) display a higher risk for regional metastasis. Sentinel lymph node staging has been used successfully to evaluate nodal metastasis in selective tumors. OBJECTIVE Assess the feasibility of sentinel node to detect occult regional lymph node metastasis in high-risk CSCC. MATERIAL AND(More)
OBJECTIVE To describe the results of the Nosocomial Infection surveillance program at the Cardiology Hospital in Centro Médico Nacional Siglo XXI of the Mexican Social Security Institute. METHODOLOGY To inform of the epidemiologic follow-up results from January 2000 to July 2003. Global frequency, infection rates by infection site, hospital services, and(More)
Primary mitral valve prolapse (MVP) or the disease known as MVP, consists of mixomatous degeneration of the mitral valve with systolic displacement of a portion or all of one or both mitral leaflets beyond mitral annulus into left atrium during systole, associated or not with mitral insufficiency. Prevalence in Mexican population is <2%. MVP behavior is(More)
BACKGROUND Attitude changing involves a holistic change on individual biopsychosocial structure. That attitude is understood by behaviors, thoughts, feelings and higher mental processes involved with behavior. This attitude will be considered in two ways: favorable or unfavorable, through a part of the environment. If unfavorable, the most common way to(More)
Cardiopulmonary bypass (CPB) is one of the methods used in myocardial revascularization and can be associated with adverse events that are uncommon, but CPB induces high morbidity and mortality. Cardiac surgery and CPB activate a systemic inflammatory response characterized by tissular lesions, cells movements and blood flow toward the interstice where the(More)
BACKGROUND Hypertension ranks first medical care in first level units. It is estimated that half of the patients with hypertension are uncontrolled. The purpose of this document is to provide recommendations to guide diagnosis and treatment of arterial hypertension in primary care, which have been considered key to the process of care, in order to help(More)
OBJECTIVE To present the characteristics of women with early breast cancer and clinically negative ganglia who were submitted to LM and SLNB in order to select the positive cases for axilar dissection and to identify the negative cases. MATERIAL AND METHODS Cases included patients who attended the Breast Tumor Service of the Oncology Hospital of the(More)
OBJECTIVE We evaluated the precision of the perfusion and ventricular function through cardiac scintigraphy 99mTc-MIBI SPECT synchronized to the electrocardiogram to differentiate the ventricular damage of ischemic origin from the dilated cardiomyopathy. METHODS Thirty patients with myocardial damage with ejection fraction =30% were included. We analyzed(More)
The left atrial dissection is a rare complication occurring mainly after mitral surgery, thoracic trauma, myocardial infarction and infectious endocarditis. The clinical diagnosis can be confused with isolated prosthetic dysfunction, myocardial infarction. Its onset and, its form of presentation vary widely, concerning to the intensity and to the moment in(More)
BACKGROUND Medical care in a hospital under a socialized medicine system should be highly effective at the lowest expense possible. When myocardial perfusion studies are performed in well-selected patients, the costs decrease because of the need for fewer invasive studies. When patients are not selected properly, there is an increase-wasted resource, making(More)