[Off pump coronary artery bypass surgery long term results after 20 years in a cardiac center in Chile].

Background: The benefits of off-pump coronary artery bypass graft (OPCAB) compared with conventional on-pump coronary artery bypass graft are not well established although several studies show excellent long-term results.

Aim: To assess and report the long-term results of OPCAB surgery in a 20-year period in a Chilean Regional Cardiac Surgery Center.

Patients And Methods: Retrospective analysis of the medical records and surgical protocols of 1353 patients aged 61.

Differential CD4 T Regulatory Cell Phenotype Induced by Andes Hantavirus Glycoprotein.

Hantavirus cardiopulmonary syndrome (HCPS) caused by Andes orthohantavirus (ANDV) in South America is a public health threat due to the significant rate of mortality and the lack of a specific treatment. Interestingly, the virus does not produce cytopathic effect, thereby the strong antiviral immune response is suspected to contribute to pathogenesis, hence is important to understand the balance between protective and harmfully immunity. CD4 T regulatory cells (Treg) are essential to control an exacerbated immune response.

[Beating heart anterior descending coronary artery grafting with left internal mammary artery: a long term follow up experience].

Background: In recent years the use of left internal mammary artery (LIMA) as a gran to anterior descending artery (DA) with the off pump technique has been associated with similar good long term results as with the on pump technique.

Aim: To report the results of LIMA to DA bypass grafting without extracorporeal circulation (EC) for isolated DA lesions.

Patients And Methods: Descriptive study of 80 patients subjected to coronary surgery between 1999 and 2007.

[Intraprostatic BCG vaccine in patients with prostatic cancer. Expression of interferon gamma and interleukin 4 (a preliminary study)].

Unlabelled: The BCG treatment in the superficial bladder cancer is utilized since 1976. There are some animal experiences with BCG intraprostatic in dogs with prostatic cancer.

Goal: determine if insitu BCG vaccine increase the prostatic immunity in patients with prostatic cancer.

[Primary cholangiocarcinoma associated with Caroli disease].

A 68 years old male presented with right hypochondrium abdominal pain and jaundice with no other clinical finding. CAT Scan and Ultrasonography showed right lobe bile duct dilatation. Magnetic Resonance Cholangiopancreatography gave an outstanding vision of a restricted right lobe bile duct dilatation associated to choledocholithiasis.

[Chronic sclerosing non-specific sialadenitis of the submandibular gland (Küttner tumor). Report of one case].

Chronic sclerosing unspecific sialadenitis or Küttner tumor, is an infrequent inflammatory lesion of submandibular gland. We report a 60 years old male presenting with a slowly growing, painless, bilateral submandibular tumor of two years of evolution. Pathological examinations showed marked atrophy of glandular parenchyma with increased fibrous connective tissue and an intense lymphocytic infiltration with lymphoid follicle formation.

[Bcl-2 gene protein expression in salivary gland tumors].

Background: Salivary gland tumors have heterogeneous pathological features. Oncogene Bcl-2 product expression inhibits apoptosis and therefore is important for tumor proliferation.

Aim: To assess the immunohistochemical gene Bcl-2 protein expression in salivary gland tumors.

[Evaluation of prostatic specific antigen after a digital rectal examination: experience with 36 patients].

Levels of prostatic specific antigen may be modified with procedures over the prostatic gland. We measured this antigen in 36 hospitalized patients before and immediately after a digital rectal examination. Antigen levels were 8.

[Gallbladder cancer: anatomic and anatomo-pathologic considerations].

Gallbladder cancer is a common neoplasia in Chile. Subclinical forms constitute 30 to 50% of all cases and poorly differentiated lesions are more common in Chile than elsewhere. Traditional grading of this neoplasia according to the degree of wall infiltration neglects important aspects such as the discontinuity of the muscular layer, heterogeneity of the subserosa, microinvasion of the mucosa and Rokitansky-Aschoff sinuses.