Awake off- pump coronary artery bypass surgery in 25 patients

Objectives To test the feasibility of the use of high thoracic epidural anesthesia as a sole anesthetic in patients undergoing off pump coronary artery bypass surgery, avoiding general anesthesia. Methods Between October 2002 to April 2003, twenty five cases underwent beating heart coronary artery revascularization without endotracheal general anesthesia, using high thoracic epidural anesthesia and analgesia. All the patients underwent epidural catheterization on the evening before the surgery. Resuits The patients in all received 71 grafts (single n= 11, double n = 5, triple n = 6, quadruple n =3). Six patients underwent repeat coronary artery bypass. Except one was converted to general anesthesia and cardiopulmonary bypass, the other patients underwent off- pump coronary artery bypass graft surgery, 2 patients underwent grafting via left thoracotomy (MIDCAB) and the rest through mid sternotomy. There was no mortality. Mean length of stay in the intensive care unit was 16 . 2 ( 4.2 hours and hospital was 3.0(1.2 days. Conclusions Our experience confirms the feasibility of performing muhiple coronary artery bypasses in conscious patients without endotracheal general anesthesia.     

Hepatic Met‐enkephalin immunoreactivity is enhanced in primary biliary cirrhosis

Abstract: Background/aims: In contrast to the normal adult liver, the fetal human and rat livers, and the liver of rats with cholestasis secondary to bile duct resection (BDR) express the preproenkephalin (ppENK) mRNA, which codes for the endogenous opioid peptide Met‐enkephalin. In addition, Met‐enkephalin immunoreactivity (MEIR) is detected in hepatocytes and in proliferating bile ductules in the cholestatic rat liver. These data suggest that cholestasis is associated with the resurgence of cells that produce Met‐enkephalin. To explore further the status of opioids in cholestasis, we studied the expression of MEIR in liver tissue. Methods: The MEIR was sought in paraffin‐preserved liver tissues from patients with primary biliary cirrhosis (PBC) (n = 10). Results: The MEIR was detected in all the PBC livers. Its intensity varied from weak to strong on hepatocytes and bile ducts and the strongest expression appeared as coarse granules. The MEIR was either absent or only faintly expressed by some hepatocytes from disease and nondisease control biopsies, but absent from bile ducts. Conclusion: These results suggest that the human liver in cholestasis may be a source of endogenous opioids.     

Acute rheumocarditis in young men]

A study was made of the characteristic features of rheumocarditis in 200 young recruits. Rheumocarditis developed within the first 2-3 days since the onset of migrating polyarthritis and high fever. In many cases, it was accompanied by rhythm and conduction disorders as well as by a moderate increase of the left heart in combination with intracardiac hemodynamic disturbances. In 42 patients (21%), myocardial injury was coupled with mitral valve lesion. Injury to the pericardium was recorded in 20 patients (10%); fibrinous pericarditis was diagnosed in 15 patients, exudative pericarditis in 5 patients. Injury to all 3 heart membranes was ascertained in 5 patients (2.5%) (according to echocardiography). Thus, the clinical and instrumental manifestations of rheumocarditis made it possible to diagnose marked carditis symptoms almost in all the patients (in 96%). Unmarked carditis was only discovered in 7 patients. The above-mentioned characteristics of rheumocarditis in young men may be due to the intensity of the action of streptococcal infection on the heart structures within the first days of the disease as well as due to the action of immunopathological processes. Besides, a definite role may be played by the foregoing physical load.