Lege Artis Medicinae

[János Szentágothai]

HÁMORI József

DECEMBER 28, 1994

Lege Artis Medicinae - 1994;4(12)

[János Szentágothai, the Hungarian and international a world-renowned leader in neuroscience, died unexpectedly on 8 September. His death was not preceded by a long illness. Before his death, he was working on the manuscript of his book on the general principles of the nervous system. Although he was unable to complete this book in its entirety, his life, this ambitious career, can be considered complete, if not finished. ]

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[The first 15 years of the AIDS epidemic ]

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[Ischaemic infarction accounts for 85% of stroke aetiology (1). Approximately 60-70% of these are of cerebrovascular, i.e. carotid arteriosclerosis, origin (2). The proportion of cardiogenic embolism was previously estimated at 15% (1), but autopsy data suggest that embolism is the cause of half of fatal strokes (3). There are two reasons for this large discrepancy: 1) the intracardiac source is difficult to identify in vivo; 2) cardiogenic embolism has a more severe outcome than stroke of other origin. Probably both are true, but there is no doubt that before the introduction of transesophageal echocardiography (TE), the detection of intracardiac sources was rare and uncertain.]

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[A multicentre, randomised, crossover, double-necked trial of contamination of conventional and bow-tie dressings in routine obstetric and gynaecological practice]

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[In the 19th century, the usual dress of doctors was a small bow tie tied in a flat knot "once round" in addition to a stiff standing collar (1). As fashions have changed, the wearing of bow ties has become less common and is now worn almost exclusively by a small minority of obstetricians, who often claim that they are more hygienic than the traditional tie in the delivery room, which is contaminated with blood and amniotic fluid. There is currently no evidence for this. We therefore examined the contamination of traditional and bow ties worn by obstetricians during a typical working week. ]

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[The clinical and laboratory parameters which correlate with the intensity of the inflammatory process in ulcerative colitis patients were analyzed in this study. The severity of the inflammatory process was assessed with leukocytescinti graphy by colorectal segments using a scoring method in 36 patients (group A). The sum of the segmental scores were considered to represent the intensity of the inflammatory process and were compared with clinical and laboratory parameters. From among the 36 patients, acute ulcerative colitis was established with biopsy in 30 cases. Two toxic patients were not tested and four patients had inactive disease. In 20 (16 acute, 4 inactive) of 36 patients, the intensity of the inflammatory process was assessed by segments with score values of biopsy samples and leukocyte scintigraphy (group B). The sum of the score values was used to determine the correlation of the two methods. The intensity of the inflammatory process assessed by scintigraphy showed a good correlation (r = 0.6564, p = 0.0016) with histological findings (group B), as well as with the ESR (r = 0.6398), serum fibrinogen (r = 0.5424), alfa2 globulin level (r = 0.4721), number of bloody stools (r = 0.4605), and the thrombocyte count (r = 0,4594) in group A. Five clinical and laboratory parameters proved to be suitable to assess the actual severity of the inflammatory process in ulcerative colitis. The values of the parameters may help to choose the right examination in new cases and to evaluate the efficacy of the therapy. ]

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Clinical Neuroscience

Is stroke indeed a “Monday morning disease”?

FOLYOVICH András, BÉRES-MOLNÁR K Anna, GIMESI-ORSZÁGH Judit, KATONA Lajos, BICZÓ Dávid, VÖRÖS Károly, GŐBL Gábor, AJTAY András, BERECZKI Dániel

Introduction - The therapeutic time window of acute stroke is short. Decision on the use of intravenous thrombolysis is based on well-defined criteria. Any delay in the transport to a designated stroke centre decreases the odds of therapeutic success. In Hungary, the admission rate of stroke patients peaks on Monday, the number gradually decreasing by the end of the week. This phenomenon has long been suggested to be due to the lack of emergency care approach. According to the literature, however, returning to work following a holiday is a risk factor for acute stroke. A similar phenomenon is well-known in veterinary medicine, a condition in horses referred to as ‘Monday morning disease’. In our study, we analysed the distribution of admissions due to acute stroke by the day of the week in 4 independent data sources. Patients and methods - The number of patients admitted to the Szent János Hospital, Budapest, Hungary with stroke and that of emergency ambulance transports in the whole city of Budapest due to acute stroke were analysed in the period between January 1 and March 31, 2009. The distribution of thrombolytic interventions reflecting hospitalizations for hyperacute stroke was analysed based on data of the Szent János Hospital in 2009-2012, and on national data from 2006-2012. Descriptive statistics was used to present the data. The variation between daily admission was compared by chi-square test. Results - The proportion of daily admission of stroke patients admitted to the Szent János Hospital was the highest at the beginning of the week (18% on Monday, and 21% on Tuesday) and the lowest on the weekend (9% and 9% on Saturday and Sunday, respectively). The distribution of ambulance transports in Budapest due to acute stroke tended to be similar (15% and 15% on Monday and Tuesday, whereas 13% and 12% on Saturday and Sunday, respectively) on different days of the week. No such Monday peak could be observed in a single centre regarding thrombolytic interventions: 18% and 19% of the total of 80 thrombolytic interventions in the Szent János Hospital were performed on Monday and Sunday, respectively. At the national level the higher Monday rate is obvious: during a 7-year period 16.0%, 12.7%, and 13.5% of all thrombolytic interventions in Hungary were performed on Monday, Saturday and Sunday, respectively. Conclusion - Monday preference of stroke is not exclusively caused by the lack of emergency care approach, and the phenomenon is not consistent at the individual hospital level in cases undergoing thrombolysis.

Clinical Neuroscience

[Perinatal stroke - from symptoms to follow-up]

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[Background and purpose - We aimed to analyze patient characteristics of term neonates with the diagnosis of stroke between 2006 and 2017 at the 3rd level Neonatal Intensive Care Unit of the Szent János Hospital. Method - We conducted a retrospective and prospective analysis including 18 newborns with stroke. Presentation, imaging methods, etiology and clinical context were discussed. All patients had a follow-up at 2 years of age or later. Subject of the study - In the past 10 years 17 term born and one premature neonate born at 36 weeks of age were diagnosed with stroke in our unit. All patients were born at good condition generally with high Apgar scores (9±1). Cesarean section was performed in 4 cases. Results - With an estimated incidence of one in 1600-4000 births, the incidence of perinatal stroke in our unit was found to be the same as mentioned in the international databeses. Regarding imaging method, cranial ultrasound scan do not visualise arterial ischaemic stroke therefore head MRI is recommended. Neurological symptoms of the patients presented in the first two days of life. Etiology included thrombophilia (4/18), infection (4/18), vascular malformation (2/18), moderate asphyxia (2/18) and pre-eclampsia (2/18). Middle cerebral artery was involved in 50% while the anterior cerebral artery was affected in 33%. The stroke occured in the left hemisphaerium in 44%, in the right side in 39% and was bilateral in 17%. In two cases the stroke was diagnosed in utero. Early childhood developmental support resulted in average or above average gross and fine motor development and cognitive outcome. Conclusion - Presenting neurological symptoms tipically occur in the first few days after birth when perinatal stroke need to be considered among the broad spectrum of neonatal illnesses. Normal developmental outcome can be achieved even in cases of extensive brain damage with early childhood developmental support. Severely impaired development was observed in the cases of in utero stroke. Inherited prothrombotic disorders may have implications for subsequent pregnancies of the mother. ]

Clinical Neuroscience

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[Despite of the symptoms of vertigo have been known since thousands of years, it was evident by the research of the pioneer scientists of the 19th century (Flourens, Ménière, Breuer and others) that dizziness can also be attributed to inner ear disfunctions. The discovery of the vestibulo-ocular reflex was an important milestone (Endre Hőgyes, 1884). The vestibulo-ocular reflex stabilizes images on the retina by rotating the eyes at the same speed but in the opposite direction of head motion. The milestone discovery of Hőgyes by stimulating individual labyrinth receptors and recording the activity of eye muscles were verified by János Szentágothai in 1950. Low-frequency lesions of the angular vestibulo-ocular reflex can be investigated by caloric test (Robert Bárány,1906), high-frequency lesions by head impulse test (Gabor Michael Halmagyi and Ian Stewart Curthoys, 1988).]

Clinical Neuroscience

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Introduction - Population-based screening is an option to identify persons at high risk for stroke. However it is associated with rather high expenses, necessitating the selection of effective methods that take local characteristics into account. The 12th district of Budapest has a long tradition of population-based screening for frequent and preventable diseases. The Szent János Hospital hosts an annual stroke screening day. In the present study, previously published data from the 2011 screening were compared with those obtained in 2016, looking for changes and tendencies throughout the examined period. Subjects and methods - The screening day was conducted in a generally similar way in 2011 and 2016. Similarly to the previous event, the program was organized on a Saturday, the call for the event was spread by the local newspaper. The crew composition was the same. As regards the components of the screening (currently including general history taking, risk status assessment, blood pressure measurement, BMI assessment, cholesterol and blood glucose tests, carotid duplex ultrasonography, and ophthalmological examination), the only difference was the absence of cardiologic examination (it was conducted on an independent day). The anonymous data sheet was the same. Results - The number of participants in the 2016 event was 33, to provide more comfortable conditions. The female predominance was slightly less pronounced but was still present in 2016 (60.6% vs. 72.9%). The mean age became substantially higher (71.2 y vs. 62.9 y). The ratios of participants with higher level of education (97% vs. 94%) and those who are married were still remarkable. The most frequent risk factors were the same; however the ratio of participants with hypertension, ‘other heart disease’, and diabetes increased, whereas that of with hyperlipidemia and obesity decreased. The incidence of atrial fibrillation was unaltered. None of the participants in 2016 admitted smoking (previously this ratio was 20.8%) or drinking heavily. The findings of the carotid ultrasonography revealed a more favorable vascular status. Ophthalmological assessments (predominantly hypertensive alterations on fundoscopy) revealed that the pathological vs. physiological ratio switched to 1:2 from 2:1. The final evaluation of the screening program likewise demonstrated an improved overall state of health of the population. Conclusions - We observed a more favorable stroke risk status of the population in 2016. Whether it is indeed a tendency unknown at present. The role of the local media in calling for screening is still decisive, and the cohesive power of the family is important.

Lege Artis Medicinae

[The Private Physician and State Advisor of Tzar Alexander I János Orlay, a Polymath Physician ]

MOLNÁR László