Lege Artis Medicinae

[Transvaginal color doppler in early pregnancy]

SZABÓ István1, CSABAY László1, NÉMET János1, PAPP Zoltán1

AUGUST 31, 1993

Lege Artis Medicinae - 1993;3(08)

[The authors performed serial examinations using a transvaginal transducer with color Doppler facilities in normal and pathologic early pregnancies in order to examine the circulatory changes in the female genital tract and developing embryo. This is a preliminary study demonstrating the application of TVCD and summarizing the main circulatory characteristics in early pregnancy as a part of a detailed program investigating circulation in the first trimester of pregnancy. Parallel with the implantation as a result of trophoblast induction the branches of the uterine arteries can be visualized by TVCD, and characteristic ilus velocity waveform can be identified in each portion of this network. No diastolic flow can be detected in the embryonic arteries until 12–14 weeks of gestation. The fetal heart rate shows a characteristic change between the 5th and the 14th week of gestation. Examination of the circulatory changes in pathologic early pregnancies helps to establish an exact clinical diagnosis and to choose the proper treatment. The recent advent of the transvaginal probe with color Doppler imaging has permitted accurate studies of the circulatory changes in the female reproductive organs to be performed and provided more information about physiologic and pathologic processes in early pregnancy than all the non-invasive systems developed previously. ]

AFFILIATIONS

  1. Semmelweis Orvostudományi Egyetem I. sz. Szülészeti és Nőgyógyászati Klinika Budapest

COMMENTS

0 comments

Further articles in this publication

Lege Artis Medicinae

[The relationship between genetic polymorphism of apolipoprotein E and atherosclerosis and its relevance with clinical practice]

CSÁSZÁR Albert

[The lipoprotein metabolism, having crucial role in atherogenesis is regulated by apolipo proteins, lipoprotein receptors and lipidtrans ferase enzymes. The genetic polymorphism of these proteins has been reported to be associated with lipid disorders. Beneath the rare forms (familial hypercholesterolemia, familial defective apo B syndrome) the most important monogenetic dyslipoproteinemia seems to be related to the apolipoprotein E polymorphism. The mean serum cholesterol concentration is influenced by the different apo E phenoytpes (E4 with high, E2 with low cholesterol level). In Hungary, the allele-frequencies (22 0,06, 22 0,80, 34 0,12) and the effect of apo E alleles on cholesterol concentration are very similar to the results found in other populations. Apo E polymorphism shows association with 1. hyperlipoproteinemia type III (E 2/2); 2. dyslipoproteinemia in familial hypercholeste rolemia (E2); 3. premature coronary heart disease (E4); 4. hypercholesterolemia in some populaton (E4); 5. insulin dependent diabetes mellitus in the Hungarian population (E2); 6. the rate of intestinal cholesterol absorption in some population (E4 with higher capacity). In such conditions the determination of apo E phenotype or genotype is very important to reveal the risks of the atherosclerosis and to asses the optimal hypolipidemic therapy.]

Lege Artis Medicinae

[Correspondence]

GÁBOR Zsuzsa

[In the May issue of your newspaper, we published the musings of doctor Lajos Matos, who complained about the "pains of screening". It is feared that a supplement could be filled with not so much refuting the arguments put forward to justify his concerns, but rather adding to them. It is worth reflecting, however, at least at the level of the list, because the train of thought, which has forgotten important aspects (and facts), has led to a very depressing conclusion. ]

Lege Artis Medicinae

[Relative antithrombotic effects of aspirin and of F(ab')2 fragments of an antibody blocking glycoprotein IIB/IIIA receptor]

KISS Róbert Gábor, JEAN-MARIE Stassen, TANIA Roskams, DÉSIRÉ Collen

[The antithrombotic effect of heparin (control group, 100 U/kg bolus and 50 U/kg/hr infusion), of heparin and aspirin (ASA group, 10 mg/kg bolus) and of heparin and F(ab')2 fragments of the murine monoclonal antibody against the platelet glycoprotein lib/Illa (GPIb/Illa) receptor (7E3-F/ab'/2 group, 0.8 mg/kg bolus) were studied in 3 groups of dogs with a 3 cm long everted (inside-out) segment of the carotid artery inserted into the femoral artery and a superimposed constriction which reduced blood flow to 35% of baseline.ASA and 7E3-F(ab')2 caused inhibition of ex vivo platelet aggregation with a decrease from 63 + 8 to 16 + 10% (mean + SEM, p < 0.001) in the ASA group and from 57 £ 5 to 0% in the 7Ė3-F(ab”)2 group. The template bleeding time increased in the ASA group (from 1.4 + 0.2 to 2.9 + 0.4 min, p < 0.05) and in the 7E3-f(ab')2 group (from 1.4 + 0.2 to 51 + 12.6 min, p < 0.001). In the control group the everted segments occluded and remained closed in 6 dogs and showed cyclic flow reduction phenomena in the 5 other dogs. In the ASA group inserted arteries occluded and remained closed in 5 dogs and showed cyclic flow reduction in 4 dogs; one segment remained open (p = 0.69 compared to control). In the 7E3-F(ab')2 group all segments remained patent (p < 0.001 compared to the control and to the ASA group). Thus, the GPllb/Illa blocking monoclonal antibody is significantly more effective than aspirin in the prevention of platelet mediated arterial occlusion. ]

Lege Artis Medicinae

[Significance of intracranial lipomas in connection with a rare case ]

CSERNI Gábor

[Intracranial lipomas are rare lesions which are diagnosed in about 0,08% of autopsy cases. An intracranial lipoma in the left Sylvian area of a 93 year old woman was incidentally observed during autopsy. Histological findings supported the diagnosis based on the macroscopic characteristic features. Intracranial lipomas, which are predominantly localized in the median areas are presently considered as develop mental anomalies of the subarachnoid space and not as real tumors. The theory of their pathogenesis explains the other developmental brain anomalies that are often associated with the lesion, as well as the finding of intralipomal vessels and cranial nerves. Though such lipomas are usually asymptomatic, several cases were demonstrated to be associated with seizures. Other symptoms may include hydrocephalus, headaches, behavio ral disorders, focal neurological signs. Diagnosis is based on CT or MRI findings. Intracranial lipomas are usually treated symptomatically and surgical treatment is seldom indicated In most cases shunt operations are performed, since resection is difficult and complete relief of symptoms cannot be expected as a result. ]

Lege Artis Medicinae

[Boston Area Anticoagulation Trial for Atrial Fibrillation ]

MATOS Lajos

[With the exception of the first month, the prothrombin time was within the desired range for 83% of the study period. There were two "strokes" in the warfarin group (0.41%/year) and 13 in the control group (2.98%/year). The overall mortality rate was 2.25% in the warfarin group and 5.97% in the controls. Minor bleeding occurred in 38 patients on warfarin and 21 in the controls. Subsequent analysis of the control group according to whether and at what dose they were taking aspirin and the extent to which it protected against brain events showed that most brain events occurred among those taking 325 mg of aspirin per day (mean 3.9% per year). In the group taking neither aspirin nor warfarin, the incidence of "stroke" was 1.8% per year and in the warfarin-treated group it was 0.45%.]

All articles in the issue

Related contents

Lege Artis Medicinae

[Investigation of uterine circulation by transvaginal color doppler in early pregnancy]

SZABÓ István, CSABAY László, NÉMET János, PAPP Zoltán

[The circulatory changes and the characteristics of blood flow in certain uterine vessels can be detected by transvaginal color Doppler in early pregnancy. The uterine circulation of 53 patients with normal intrauterine pregnancies at 4–14 weeks of gestation and 104 non pregnant patients were investigated. The main uterine artery, arcuated and spiral arteries were demonstrated by color Doppler in all patients in early pregnancy and characteristic flow velocity waveforms were obtained in 94% of the cases. The impedance to flow in the main uterine artery was significantly lower and the mean velocity was significantly higher in early pregnancy than in non pregnant patients. The indices of impedance to flow decreased with gestation in the uterine branches and there was a progressive fall in these indices from the uterine artery to the spiral arteries. Mean blood velocity in the uterine artery increased with gestation. The hemodynamical changes which are proportional to gestation age give an indirect evidence of the adequate maternal blood supply for the growing embryo.]

Lege Artis Medicinae

[Transvaginal ultrasonography of embryo development in prematurity, sono-embryology I. The embryo and its appendages]

CSABAY László, SZABÓ István, NÉMETH János, PAPP Zoltán

[The authors performed serial examinations by a high resolution transvaginal transducer during the first trimester of pregnancy to show the most important stages of the early embryonal development. This is a preliminary study to a prospective, detailed screening programme in the first trimester of pregnancy. The earliest sign of pregnancy can be detected at the 29–31st days of menstrual age using vaginal transducer. During the 5th week the (secondary) yolk sac can be seen, which is an unambiguous evidence of an intrauterine pregnancy. The living embryo can be de monstrated on 36–38th days with the help of the pulsation of the embryonic heart tube. Certain embryonic structures appear in a defined order (developmental „calendar"). The physiologic midgutherniation can be observed during 7–11th weeks. Transvaginal sonography has gained popularity only recently due to technical advances. The main fields of use became gynaecology and early pregnancy, for there is no need to have a full bladder, for the lack of disturbing tissue layers. This method is essentially a combination of the bimanual gynaecological and the ultrasound examination. ]

Clinical Neuroscience

A variant of Guillain-Barre syndrome after SARS-CoV-2 vaccination: AMSAN

TUTAR Kaya Nurhan, EYIGÜRBÜZ Tuğba, YILDIRIM Zerrin, KALE Nilufer

Introduction - Coronavirus disease 2019 (COVID-19) is a respiratory infection that has rapidly become a global pandemic and vaccines against SARS-CoV-2 have been developed with great success. In this article, we would like to present a patient who developed Guillain-Barré syndrome (GBS), which is a serious complication after receiving the inactive SARS-CoV-2 vaccine (CoronaVac). Case report – A 76-year-old male patient presented to the emergency department with nine days of progressive limb weakness. Two weeks prior to admission, he received the second dose of CoronaVac vaccine. Motor examination revealed decreased extremity strength with 3/5 in the lower extremities versus 4/5 in the upper extremities. Deep tendon reflexes were absent in all four extremities. Nerve conduction studies showed predominantly reduced amplitude in both motor and sensory nerves, consistent with AMSAN (acute motor and sensory axonal neuropathy). Conclusion - Clinicians should be aware of the neuro­logical complications or other side effects associated with COVID-19 vaccination so that early treatment can be an option.