Cerebral and renal embolization after lymphography in a patient with non-Hodgkin lymphoma: case report

An unusual case of lipid embolization to brain and kidney after lymphography in a patient with non-Hodgkin lymphoma of the upper anterior mediastinum is reported. Contrast material-enhanced echocardiography demonstrated a right-to-left shunt to the left atrium without evidence of a patent foramen ovale. Echo contrast particles were transiently present within the tumor surrounding the great vessels.     

Quantification of microglial late reaction to stereotactic irradiation of the rat brain using computer-aided image analysis

The role of microglial cells in the late delayed reaction following radiotherapy of brain tumors has not been elucidated. To investigate the late delayed response of microglial cells to radiation, we stereotactically irradiated spherical treatment volumes in the right frontal lobe of rat brains. Doses of 20, 30, 40, and 50 Gy were used in combination with two different collimators. The response of microglial cells at 10 and 19 months after irradiation was determined with Anti-CD 11 b/c (Ox 42) as an immunohistochemical marker. For evaluation of immunostaining, we developed a method using computer-aided image analysis in which the ratio of the area of stained cells to that of nonstained brain tissue is calculated. In addition, quantification of Ox-42+ cells per microscopic field was performed. Animals treated with 30 Gy or more had significantly increased total areas of staining at both time points studied. In contrast, the number of stained cells at 10 months increased significantly only in animals treated with 30 or 40 Gy. Likewise, at 19 months, this number increased significantly only in animals treated with 40 Gy or more. These results indicate that computer-aided determination of the area of stained cells is more sensitive than the counting of stained cells. We have demonstrated that microglial cells respond to stereotactic irradiation in a dose-dependent fashion. The image analysis we employed for this purpose is a systematic method to evaluate immunohistochemical staining.     

Economics and ethics in public health?

The topic suggests a conflict between ethics and economy in medical care. It is often argued that today's welfare state in affluent societies with their social insurance systems makes it easier for the doctor to translate ethical demands into reality without being hampered by economic restrictions. Both doctors and patients took advantage of this system of medical care by mingling social guarantees for health with the doctor's income. Hence, medical expenses expanded rapidly, additionally promoted by technical progress in medicine. This entailed a proportionate increase in medical expenses in relation to personal income, especially wage income. Budgets of state authorities were streamlined or deficits became larger. This state of affairs was promoted further by mechanisms of distribution of national income in accordance with the slogan "less state, more market". While national income continued to grow, although at a slower rate, the number of jobless persons grew continually and thus also the social expenses, this was not due, as is usually assumed and pretended, to an economic crisis. Society and economy are facing a crisis of distribution of national income under conditions of technical progress as a job killer, making economic production more productive and efficient. Not taking into account the new challenge of social market economy--the German innovation in market economy creating the economic miracle after World War II--reforms of the system of medical care took place and are still continuing along market principles, particularly the latest German reform law leading to individual contracts between patients and their doctors in respect of cost charging. However, marketing principles promote economy in medicine, but they do not promote medical ethics. Further German guidelines for medical care should take stock of past experiences. There will be more competition in the "growing market of medical care" (private and public) and this will need--as economic experience has shown and economists have affirmed--new organisational devices to ensure better outcomes for the individual patient as a consumer and the doctors as suppliers. More responsibility should be given to the different suppliers of collective security in medical care (private or social systems of insurance). No individual patient as a mere consumer has a genuine chance in handling contracts with doctors carefully who are considered to be "gods in white" according to a popular German saying. These consumers have only a slight chance when arguing in courts of justice for the performance of contracts. Diagnosis and therapy, the system of doctors who treat members of statutory social insurance schemes (National Health general practitioners in the U.K.) and doctors as "free entrepreneurs" in the growing market of medical care should be separated due to the different rules of charging costs and offering medical care. "Classless medical care" does not have a better chance by applying market principles. The same is true for ethics versus economy. Doctors as "free entrepreneurs" must learn that markets will not guarantee reimbursement of costs but react to supply and demand. Hence, regulation of medical care by economic instruments creates better chances even for ethics in medical care against economy.     

Metabolic base production and mucosal vulnerability during acid inhibition in a mammalian stomachin vitro

Acid inhibition increases gastric mucosal susceptibility to damage by luminal acid. This might be due to reduced metabolic CO₂ and bicarbonate whereas, during normal acid, secretion cytoprotective CO₂/HCO₃- production parallels acid production. Metabolic activity and mucosal damage caused by luminal acid perfusion was determined in anin vitro mouse stomach, with and without acid inhibition, and at 0%, 1%, or 5% serosal CO₂ supply. Without acid inhibition there was no mucosal damage at any level of serosal CO₂/HCO₃- supply. Acid inhibition reduced metabolic CO₂ production by 29% (P<0.004) and resulted in microscopic damage to 55% of the mucosal area and perforation in four of five stomachs (P<0.05). Although, 1% CO₂ supply completely replaced the reduction in metabolic CO₂, it did not protect against mucosal damage. Overreplacement by 5% serosal CO₂/HCO₃- was required to prevent damage. There was no correlation between luminal CO₂/HCO₃- output and mucosal damage. The protection by endogenous or exogenous CO₂/HCO₃- appears to act intracellularly rather than by intragastric or intercellular neutralization.This study was supported by Swiss National Foundation grants 32-26369.89 and 32-33626.92. The morphometry equipment was supported by a grant from the Osterreichische Nationalbank.     

DNA-protein crosslinks as a biomarker of cis-platinum activity in cancer patients

We have developed a new method to assess the amount of DNA-protein crosslinks (DNA-PC) in peripheral lymphocytes, based on the selective precipitation of the DNA crosslinked to proteins. We assessed the amount of DNA-PC in peripheral lymphocytes of 18 cancer patients who underwent chemotherapy with cis-platinum for the first time. Since the chemotherapy was administered over a two-day period, blood samples were drawn at baseline (before starting the therapy), 4 h after the infusion of the first dose of cis-platinum, the next day (24 h after the first dose, and immediately before the infusion of the second dose), and 2 days later (48 h after the first dose). The mean change of DNA-PC 4 h after therapy was 0.8+/-0.8% (p=0.006), 0.5+/-0.6% after 1 day (p=0.007), and 0.1+/-0.5% after two days (ns). The correlation between DNA-PC changes and cumulative dose of cis-platinum was -0.22 at 4 h, -0.19 after 1 day, and -0.68 at 2 days (p=0.005). The crosslinking effect of cis-platinum seems to vary among individuals and with dose; the DNA-PC may be used to define sub-populations of patients with various degree of sensitivity to the pharmacologic action of this chemotherapeutic agent, and thus to adjust the dosage on an individual basis.     

Functions of the Coordination and Maintenance Committee and modifying the ICD-9-CM, Volumes 1 and 2

Balancing the multiple uses of ICD-9-CM with its central purpose as a statistical classification system is the function of the Coordination and Maintenance Committee. This article describes the process to modify diagnosis and procedure codes and how AHIMA members can contribute to improving ICD-9-CM.     

Responsibilities and training needs of mental health administrators

This paper reports findings of a needs assessment in the area of training programs for senior mental health administrators. Questionnaires (N=530) were sent; 169 to county and regional state mental health administrators; 331 went to community mental health administrators. The response rate was 43%. Thirty-four percent of the public sector respondents listed general administration as their first topic; fiscal issues were listed by 19%; 18% listed personnel administration first. Second topics chosen for training by the public sector administrators were general administration (17%), financial management (24%), and personnel (20%). As their first topics of choice for future training, 37% of the community mental health administrators selected general administration areas, 27% selected financial management, and 10% personnel. Training for mental health administrators has the potential for substantial enrichment through the design and implementation of carefully planned programs. Results from this needs assessment show the continued strong need for such training.     

POSSIBLE INVOLVEMENT OF INOSITOL-LIPID METABOLISM IN MALIGNANT HYPERTHERMIA

-Adrenoceptor stimulation may induce malignant hyperthermia(MH) in vivo. Consequently, we have investigated the effectsof the -adrenoceptor agonist phenylephrine and, for comparison,the effects of the ß-adrenoceptor agonist isoproterenolon inositol-lipid metabolism of malignant hyperthermia susceptible(MHS) and healthy control (MHN) swine. The experiments wereperformed on electrically stimulated (frequency 0.2 Hz) trabeculaeisolated from the right ventricles of the hearts of MHS andMHN animals. After labelling with [³H] inositol for 6 h, differentinositol phosphates were measured by high pressure liquid chromatography,including inositol 1 - phosphate, inositol 1,4-bisphosphate,inositol 1,3,4-trisphosphate, inositol 1,4,5-trisphosphate (1,4,5-IP₃)and inositol 1,3,4,5 - tetrakisphosphate. After stimulationwith isoproterenol, the inositol phosphate content did not increaseor vary between muscle from MHS and MHN animals. In contrast,all inositol phosphates increased after stimulation with phenylephrinein both muscle types, the effects being greater in MHS thanin MHN, especially as regards 1,4,5-IP₃ content. As 1,4,5-IP₃,a presumed second messenger, has been shown to mobilize intracellularcalcium, it is concluded that an enhanced -adrenergic responseis involved in the development of MH. ^*Address for correspondence: Abteilung für Anästhesiologie,Universitäts-Krankenhaus Eppendorf, Martinistrasse52, D-2000Hamburg 20, Germany. Presented in part at the 1989 Meeting of the European Academyof Anaesthesiology in Bonn.     

161. Das asymptomatische Bronchialcarcinom

Zusammenfassung Indikationen und Komplikationen von 291 Bronchoskopien, 149 Mediastinoskopien und 28 Thoracoskopien werden vorgestellt. Es wird neben der diagnostischen insbesondere auf die therapeutische Indikation und die Lokalanaesthesie bei der Bronchoskopie hingewiesen. Die Mediastinoskopie hat keine ernsthaften Komplikationen. Die Thoracoskopie ist eine risikoarme Methode zur Erkennung von Pleuraerkrankungen in örtlicher Betäubung und wird in Intubationsnarkose zur thorakalen Vagotomie beim Asthma bronchiale eingesetzt.