PubMed Health⌕ Search

Biomedical subjects

A Iancu

Publications and source records attributed to A Iancu.

18 recordsLinked to original sources
PubMed2004

Prodromal angina reduces infarcted mass less in interventionally reperfused than in thrombolysed myocardial infarction.

UNLABELLED: There is a lot of evidence that angina during the 24-48 h before a reperfused myocardial infarction improves the evolution of the patients. However, there are studies that failed to demonstrate this protective effect of preinfarction angina in an interventional reperfusion setting. OBJECTIVE: To compare the effect of preinfarction angina (PIA) on inhospital evolution of thrombolysis vs. interventionally reperfused acute myocardial infarction (AMI). MATERIAL AND METHOD: There were prospectively studied 133 consecutive AMI patients, eligible for reperfusion (thrombolysis or interventional). History of PIA under 48 hours was obtained. Evolution of AMI was evaluated considering the following end-points: the ratio between the number of ECG leads with final pathologic Q wave and the number of leads with initial ST elevation, CK-MB values, separate and composite incidence of death, heart failure, shock and incidence of serious arrhythmia (sustained VT or ventricular fibrillation). RESULTS: ECG ratio was lower in patients with PIA (0.511 +/- 0.281 vs. 0.646 +/- 0.274, p=0.02) in thrombolysed patients, but it was higher in interventionally reperfused patients (0.740 +/- 0.418 vs. 0.554 +/- 0.295 p=0.11). CK-MB values were lowered by PIA in thrombolysed AMI (122 +/- 74 vs. 190 +/- 89, p=0.0003), but they were not in the interventional group. Clinical end-points were slightly less frequent in patients with PIA, in both reperfusion groups, but not statistically significant. Major arrhythmia occurred less frequently in interventionally reperfused patients with PIA (9.5% vs. 31.6%, p=0.12). CONCLUSION: Preinfarction angina under 48 hours significantly reduces infarcted mass (measured by ECG and enzymes) in thrombolysed patients, but not in the interventional group. However, PIA reduced arrhythmic end-point in interventional setting.

Aged↗
PubMed2001

Prolonged orbicularis oculi activity: a major factor in apraxia of lid opening.

BACKGROUND: Apraxia of lid opening (ALO) is a nonparalytic inability to open the eyes at will in the absence of visible contraction of the orbicularis oculi (OOc) muscle. OBJECTIVE: To test the hypothesis that sustained activity of the OOc is a major factor in the difficulty in opening the eyes in this condition. METHODS: Lid movement detected in an electromagnetic field and electromyogram activity of the septal and pretarsal portions of the OOc were recorded in 12 healthy control subjects and 12 patients with a clinical diagnosis of ALO. The latencies to onset and to complete eye opening and the time during which eye opening was sustained were measured and analyzed in relation to OOc activity. RESULTS: The lid opening latencies and the lid movement duration were significantly increased in patients compared with control values. An abnormal persistence of OOc activity was present in 10 of the 11 patients with a delay in complete lid opening. The complete lid opening delay showed a strong positive correlation with the time it took to inhibit the OOc activity. This relationship fit the same linear regression in both groups. CONCLUSIONS: Patients with ALO show significant delays in eye opening. An abnormal persistence of OOc activity, detectable electromyographically but not clinically, could be the main factor contributing to the delay in lid opening in these patients.

Aged↗
PubMedDate not supplied

Transesophageal determination of SNRT and SACT in paroxysmal supraventricular tachyarrhythmias.

The paper tested the hypothesis that supraventricular tachyarrhythmias (SVT) could represent the first clinical manifestation of the sick sinus syndrome (SSS). Absolute sinus node recovery time (SNRT) and sinoatrial conduction time (SACT) were determined through transesophageal approach in 16 patients with paroxysmal SVT, but without bradycardic episodes between crises. The values considered normal were: SNRTa less than or equal to less than or equal to 1500 ms; SNRTc less than or equal to 525 ms; SACT less than or equal to 150 ms. SNRTa, SNRTc and SACT were normal in all subjects (SNRTa: 1077 ms; SNRTc: 400 ms; SACT: 111 ms) and suggest the absence of a notable sinusal disfunction in these patients. We concluded that SVT unassociated with bradycardia do not usually represent a manifestation of SSS. Consequently the administration of sinusal depressant drugs in such patients could be permitted without restrictions.

Cardiac Pacing, Artificial↗
PubMedDate not supplied

[Dr. Iosif Nemoianu].

Explore the source record for details and available documents.

History, 20th Century↗
PubMedDate not supplied

Sensitivity to augmentin and cephalosporines of some bacterial strains isolated from hospitalized patients.

The study allowed the determination of the degree of antibacterial efficiency of three antimicrobial agents belonging to the betalactamine family namely cefuroxime (IInd generation), ceftazidime (IIIrd generation) and augmentin. Likewise the relationship bacterial species-antibiotic could be established. It was found that the pathogenic staphylococcus strains were very sensitive to cefuroxime (92.1%) and equally sensitive to ceftazidime and augmentin (61.0%). The enterococci were 100% sensitive to augmentin and 100% resistant to both cephalosporines. The enterobacteriaceae presented a higher percentage of sensitive strains to cephalosporines than to augmentin 89.6% of the E. coli strains were sensitive to ceftazidime, 77.9% to cefuroxime and 27.3% to augmentin. Klebsiella was sensitive in 68.2%, 45.14% and 13.6% of the cases to ceftazidime, cefuroxime and respectively augmentin. Proteus presented 64.7% strains sensitive to ceftazidime, 35.3% sensitive to cefuroxime and 29.3% sensitive to augmentin. All the enterobacter strains proved resistant to the three antibiotics studied.

Amoxicillin↗
PubMedDate not supplied

[The effect of continuous illumination and an inverse rhythm (light-darkness) on fibrinolysis].

The studies of chronobiology on biological phenomena revealed the existence of a human internal mechanism ("biological clock") which controls biological events according to each function of the body. Most of the programmed and genetically fixed rhythms can be changed and synchronized by external factors. Starting from these data and from our previous studies which emphasised an intradian rhythm of the proteolytic blood coagulation and fibrinolytic systems we observed the behaviour of the fibrinolytic system in modified environmental conditions (continuous illumination and inversed day-night rhythm). Our experiments were performed on 180 Wistar rats both male and female, submitted to continuous illumination and inversed rhythm for 1, 3 and 5 weeks. We studied plasma fibrinolytic activity (PFA) through euglobulin lysis time (ELT) at three different moments of the day: 8:30, 18:30 and 8:30 the next day. The study revealed intradian variations of PFA regardless of the type and time of submission. Thus: continuous illumination for 1, 3, 5 weeks determined a decrease of PFA (prolonged ELT) during the second part of the day, less important at 5 weeks. Inversed day-night rhythm for 1 and 3 weeks determined the same intradian behaviour of PFA but less important than continuous illumination. PFA variations in our experimental conditions suggest an alteration of its biological rhythm.

Animals↗
PubMedDate not supplied

[Fibrinolysis during pregnancy. The pre- and postpartal changes].

Our previous research as well as data in literature (Yuasas, Ishizawa M.--1992) emphasised increased plasma fibrinolytic activity (PFA) in women during labor. Starting from these data we have tried to observe plasma fibrinolytic activity studied through euglobulin lysis time (ELT) in women during pregnancy and after delivery. We studied 25 healthy pregnant women aged between 18 and 30 years which were tested in the seventh month, during labour and at 48 hours after delivery. Blood samples were taken from the antecubital vein by venous puncture. The study showed an increased PFA (shortened ELT) only during labor; in the seventh month and at 48 hours after delivery ELT had almost the same values.

Adolescent↗
PubMedDate not supplied

[The behavior of the fibrinolytic system during long-term orthopedic immobilization].

Our previous experimental studies on rats motionless for 7 to 60 days in special devices limiting their movements revealed a significantly increased activity of the fibrinolytic system (Groza, Artino) due to the "detention stress" rather then to the immobilization. Starting from these studies we have tried to observe the behaviour of the fibrinolytic system during long-term orthopedic immobilization (7-28 days) on patients having different injuries of the lower limb and submitted to orthopedic therapy (with or without osteosynthesis) to which an anticoagulant preventive treatment was added (heparin or low-molecular-weight substitutes such as Clivarine, Fraxiparine). We studied on 23 patients (11 male and 12 female) motionless for 14, 21, 28 days the plasma fibrinolytic activity (PFA) through euglobulin lysis time (ELT). Clinical investigation revealed that PFA did not change significantly during long-term orthopedic immobilization regardless of the duration of immobilization (14,21,28 days). Rosenfeld et al. (1994) described in healthy volunteers on bedrest for 36 hours an increase of PFA beginning at 24 hours of immobilization, this variation being capable of preventing stasis effects. Our results suggest that preventive anticoagulant therapy properly given during immobilization prevents thromboembolic events.

Adolescent↗