Biomedical subjects

A Michalsen

Publications and source records attributed to A Michalsen.

23 records · Page 2Linked to original sources

PubMed1998

Preventable causative factors leading to hospital admission with decompensated heart failure.

OBJECTIVE: To determine the distribution and importance of various factors, especially the preventable ones, that contribute to cardiac decompensation and subsequent hospital admission for heart failure. METHODS: During a one year period patients were prospectively recruited and evaluated during their hospital stay by means of a structured personal interview by trained medical staff and through clinical examination and laboratory investigation. SETTING: The cardiological department at a teaching affiliated general community hospital in Berlin, Germany. PATIENTS: Consecutive sample of 179 patients admitted to hospital with acute decompensation of pre-existing heart failure. MAIN OUTCOME MEASURES: Proportional distribution of causative factors leading to hospital admission for heart failure; relative importance of preventable factors; details of patient compliance with diet and medication, and knowledge about medication. RESULTS: Mean (SD) age was 75.4 (9.9) years. Potential causative factors for decompensated heart failure were identified in 85.5% of patients. Lack of adherence to the medical regimen was the most commonly identified factor and was regarded as the cause of the cardiac decompensation in 41.9% of cases. Non-compliance with drugs was found in 23.5% of patients. Other factors related to hospital admission were coronary ischaemia (13.4%), cardiac arrhythmias (6.1%), uncontrolled hypertension (5.6%), and inadequate preadmission treatment (12.3%). In all, 54.2% of admissions could be regarded as preventable. CONCLUSIONS: Many hospital admissions for decompensation of chronic heart failure in patients at a district hospital in Berlin are preventable. Measures are necessary to improve this situation and evaluation of programmes that include patient education, patient follow up, and physician training is needed.

Aged↗

PubMed1997

[Status epilepticus late in pregnancy--eclampsia or subarachnoid hemorrhage?].

After a largely inconspicuous pregnancy, a 31-year old primipara suffered from a status epilepticus in the third trimenon. The convulsions could not be terminated by emergency medical services, resulting in aspiration of gastric contents. Assuming eclampsia, an emergency caesarean section was performed immediately in a central hospital. Postoperatively, a pathological pattern of tendon reflexes was noticed. A CT scan revealed subarachnoid haemorrhage. The causal aneurysm of the right A. pericallosa was clipped subsequently. Eclampsia is the leading cause of epileptic seizures during pregnancy. However, a different aetiology should always be considered, especially if medical history does not reveal symptoms of pre-eclampsia.

Adult↗

PubMed1997

Compliance with universal precautions among physicians.

This study characterized and assessed self-reported levels of compliance with universal precautions (UP) among hospital-based physicians, and determined significant factors associated with both compliance and noncompliance. The physicians (n = 322) were a subgroup of a larger study population of hospital-based health care workers recruited from three geographically distinct locations (n = 1746), and were surveyed using a detailed confidential questionnaire that assessed personal, work-related, and organizational factors. Compliance with UP was measured through 11 items that examined how often physicians followed specific recommended work practices. Compliance was found to vary among the 11 items: they were high for certain activities (eg, glove use, 94%; disposal of sharps, 92%) and low for others (eg, wearing protective clothing, 55%; not recapping needles, 56%). Compliance with all items was low (31% to 38%). Stepwise logistic regression revealed that noncompliant physicians were likely to be age 37 or older, to report high work stress, and to perceive a conflict of interest between providing patient care and protecting themselves. Compliant physicians were more likely to be knowledgeable and to have been trained in universal precautions, to perceive protective measures as being effective, and to perceive an organizational commitment to safety.

Adult↗

PubMed1993

[Connective tissue massage].

Connective tissue massage deals with the skin and the subcutaneous tissue. It focuses on definite regions of the body, assigned in segmental order to inner organ systems and structures of the locomotor system (spinal cord, joints, muscles). In case of acute disease, oedematous swelling of a generally soft tissue consistency can be observed in circumscribed areas. Persisting symptoms may result in induration of such tissues, associated with reduced rheology and epicritic pain if manipulated mechanically. Eventually, chronic conditions may progress to atrophy. The name "connective tissue massage" is based on the concept that corresponding physiological events take place in connective tissue structures and the segmentally associated organ. With regard to the pathophysiology of such zones, mechanisms which are comparable to sympathetic reflex dystrophy are discussed at present. Analysis of such changes has contributed to general diagnosis. Connective tissue massage is considered to be an important element of physiotherapy. The clinical data on the efficacy of connective tissue massage are reviewed.

Chronic Disease↗

PubMedDate not supplied

The use of esmolol in whole-body hyperthermia: cardiovascular effects.

Whole-body hyperthermia (WBH) is a well-described investigational adjunct to systemic chemotherapy for the treatment of advanced malignancies. The hemodynamic consequences of this physiologic state may include tachycardia, which can produce acute myocardial ischemia in patients with coronary artery disease. Ischemic heart disease is currently considered a contraindication to WBH. We chose to investigate the consequences of using a new beta 1-adrenergic antagonist, esmolol, to attempt to control the tachycardia associated with WBH. After institutional approval and patient consent, nine consecutive patients with normal cardiac function presenting for WBH with carboplatin infusion were studied. Along with standard monitors, radial arterial and oximetric thermodilution pulmonary artery catheters were placed. Patients were sedated and heated in a radiant warmer (Enthermics). Spontaneous ventilation was maintained and hemodynamic data were gathered at 37 degrees C, and at 41.8 degrees C (before, during and after esmolol infusion). Heart rate and cardiac output increased (by 46% (p = 0.001) and 35% (p = 0.04) respectively) while mean arterial pressure and systemic vascular resistance fell (by 18% (p = 0.02) and 44% (p = 0.006) respectively) during hyperthermia. Heart rate was significantly reduced during esmolol administration (mean dose 180 micrograms/kg/min) in the absence of changes in cardiac index and calculated oxygen delivery. Ventricular filling pressures and stroke work were unchanged. No heart failure, pulmonary edema, or other adverse event was observed. Hemodynamic changes seen during esmolol administration were completely reversed 15 min after the infusion was stopped. We conclude that the administration of moderate doses of esmolol is safe for this population of patients undergoing WBH, and that this technique raises the question of whether patients with ischemic heart disease could safely undergo WBH.

Adrenergic beta-Antagonists↗