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Featured researches published by Norbert Pásztor.


Fetal and Pediatric Pathology | 2014

Identification of Causes of Stillbirth Through Autopsy and Placental Examination Reports

Norbert Pásztor; Attila Keresztúri; Zoltan Kozinszky; Attila Pál

The autopsy and placental histopathological examination results following fetal deaths were analyzed retrospectively in an attempt to explain the stillbirths that occurred from 1996 to 2010 at the Department of Obstetrics and Gynecology, University of Szeged. One hundred and forty fetal deaths were recorded in that period, i.e. a rate of 4.69 stillbirths per 1000 deliveries. The postmortem examination provided the exact cause of the fetal death in 57.9% of the cases. The most common causes were a placental insufficiency (46.9%) and an umbilical cord complication (25.9%). In the first half of the third trimester, a placental insufficiency predominated as the cause of stillbirth, whereas mainly umbilical cord complications occurred around term. In spite of the availability of the autopsy and histopathological examination results, the proportion of unexplained stillbirths in our sample was relatively high. A considerable proportion of stillbirth cases could probably be prevented by more effective screening of a placental insufficiency.


Current Opinion in Obstetrics & Gynecology | 2014

Severe midtrimester oligohydramnios: treatment strategies.

Zoltan Kozinszky; János Sikovanyecz; Norbert Pásztor

Purpose of review Nearly 1% of pregnancies are affected by some type of midtrimester oligohydramnios. Evidence is currently accumulating that suggests the better efficacy of the new therapeutic procedures relative to conventional management. This review summarizes the available evidence. Recent findings The prolongation of the period between the diagnosis of oligohydramnios and delivery following amnioinfusion and amniopatch techniques appears to be strongly associated with the gestational age and whether the situation was based on rupture of the membranes or not. Case series reveal that amnioinfusion significantly improves the perinatal outcome and prolongs the pregnancy in severe second-trimester oligohydramnios in both idiopathic cases and those involving rupture of the amniotic membranes [preterm prelabor rupture of the membranes (PPROM)]. There is clear evidence of a lower frequency of perinatal complications and successfully prolonged gestation in iatrogenic PPROM after the amniopatch technique relative to population controls. Summary Identification of potentially modifiable risk factors for the successful prolongation of pregnancy complicated with midtrimester oligohydramnios, and previable PPROM is needed for the improvement of treatment strategies and prognosis. Randomized trials are needed to determine whether amniotic fluid-replenishing strategies can improve pregnancy outcomes.


Journal of Maternal-fetal & Neonatal Medicine | 2013

Management of severe idiopathic oligohydramnios: is antepartum transabdominal amnioinfusion really a treatment option?

Zoltan Kozinszky; Norbert Pásztor; Melinda Vanya; János Sikovanyecz; Attila Pál

Objective: The aim of this study was an evaluation of the role of antepartum transabdominal amnioinfusion (APTA) in the management of severe idiopathic oligohydramnios with a view to improving the pregnancy outcome. Methods: The study comprised an analysis of 20 pregnant women with severe oligohydramnios who were treated with APTA in 2009 and 2012. The pregnancy outcomes and the complications of the procedure were analysed. Results: The mean gestational age at first treatment was 22 weeks 3 days. The preprocedure amniotic fluid index of <5 cm was restored by the treatment to 8 cm. More than a half of the pregnancies (66.7%, 8/12) treated with APTA finished with spontaneous abortion in the second trimester, mostly due to rupture of the membranes (as a consequence of retroamniotic filling with saline in four cases). The later the oligohydramnios developed, the higher the probability of a significant prolongation of the gestation. Conclusions: Although APTA is a useful procedure in the management of severe oligohydramnios, it may be followed by a relatively high rate of rupture of the membranes, particularly in the second trimester. Paradoxically, a higher volume of infused saline into the amniotic cavity is associated with a significantly lower risk of rupture.


Journal of Minimally Invasive Gynecology | 2015

One-Year Follow-Up Results of a Multicenter, Single-Arm, Objective Performance Criteria-Controlled International Clinical Study of the Safety and Efficacy of the Minerva Endometrial Ablation System.

Philippe Y. Laberge; Jose Garza-Leal; Claude Fortin; Robert Sabbah; Tamas Fulop; Norbert Pásztor; György Bacsko

STUDY OBJECTIVE To assess the safety and effectiveness of the Minerva endometrial ablation system for treating excessive uterine bleeding in premenopausal women. DESIGN Multicenter, single-arm, objective performance criteria (OPC)-controlled international study (Canadian Task Force classification II-1). SETTING Seven academic medical centers. PATIENTS 105 premenopausal women symptomatic for menorrhagia secondary to dysfunctional uterine bleeding. INTERVENTION Patients were treated using the Minerva endometrial ablation system. MEASUREMENTS AND MAIN RESULTS Study success, based on a pictorial blood loss assessment chart (PBLAC) score ≤75, was observed in 96.2% of the patients at 1 year posttreatment. Some 69.5% of the patients experienced amenorrhea (PBLAC score 0). The mean duration of the procedure was 3.9 minutes. General anesthesia was used in 9% of cases, with the balance being performed under local and/or intravenous or spinal anesthesia regimens. No intraoperative adverse events and/or complications were reported. No patient required hysterectomy or any additional medical and/or surgical interventions to control bleeding during 1 year of follow-up. Efficacy (success) results were compared between the Minerva system and the OPC, which served as a statistical control. The OPC comprised the US Food and Drug Administrations (FDA) reported success rates of all FDA-approved endometrial ablation systems. The Minerva system had a statistically significantly superior success rate compared with the OPC control. CONCLUSION The Minerva system was found to be safe and effective for treating patients suffering from menorrhagia. The procedure is quick and effective, does not require endometrial pretreatment, and precludes the need for additional surgical interventions to manage menorrhagia.


BioMed Research International | 2015

Pregnancy Rate after Controlled Ovarian Hyperstimulation and Intrauterine Insemination for the Treatment of Endometriosis following Surgery

Attila Keresztúri; Zoltan Kozinszky; J. Daru; Norbert Pásztor; János Sikovanyecz; János Zádori; Virág Márton; S. Koloszár; János Szöllősi; Gábor Németh

Objective. To compare pregnancy rate after controlled ovarian hyperstimulation and intrauterine insemination (COH-IUI) with no treatment in patients with endometriosis-associated infertility treated with laparoscopy. Design. A clinical cohort study. Setting. University-level tertiary care center. Patients. 238 women with various stages of endometriosis after laparoscopic treatment. Interventions. Either COH-IUI or follow-up for 12 months. Main Outcome Measures. The primary outcome measures were clinical pregnancy and live birth rate. Predictive factors evaluated were female age, maternal BMI, and duration of infertility. Results. The pregnancy rate attained after the integrated laparoscopy–COH-IUI approach was 53.4%, while it was significantly lower (38.5%) in the control group. Similarly, a significant difference was observed in live births (48.3% versus 34.2%). Patients with severe endometriosis were less likely to achieve pregnancy (38%) and live birth (35%) than their counterparts with milder forms (57% and 53%). Conclusions. In patients with endometriosis-based infertility, surgery followed by COH-IUI is more effective than surgery alone.


Journal of Oral Science | 2016

Association between periodontal status and idiopathic male infertility.

Norbert Pásztor; Krisztina Kárpáti; János Szöllősi; Márk Keresztúri; Zoltan Kozinszky; István Gorzó; Márta Radnai

About 30% of male infertility cases are idiopathic. Previous studies reported a positive correlation between deep periodontal pockets and sperm sub-motility, which suggests that periodontitis might have a role in idiopathic semen abnormality pathospermia. We evaluated correlations between periodontal infection parameters and the results of sperm analysis of men with idiopathic infertility. In this observational study, semen quality and periodontal status were analyzed for 95 otherwise healthy men attending an andrology unit for sperm analysis. Half the men in the sperm pathology and normozoospermia groups (50.8% and 50%, respectively) had poor periodontal status. Among the 95 participants, 38% had oligozoospermia, 28% had asthenozoospermia, 16% had cryptozoospermia, and 15% were classified as normozoospermic. Sperm pathology category was not associated with frequency of deep periodontal pockets or calculus. Bleeding on probing was significantly lower among men with asthenozoospermia than among those with normozoospermia. Poor periodontal status was not associated with any sperm pathology category or parameter. In contrast with previous findings, the present results indicate that pathospermia and poor semen quality are not associated with periodontal infection in men with idiopathic infertility. (J Oral Sci 58, 247-253, 2016).


Fetal and Pediatric Pathology | 2013

Magnetic resonance vs. sonographic imaging: diagnostics of a large congenital pulmonary airway malformation.

Zoltan Kozinszky; Attila Keresztúri; Norbert Pásztor; J. Daru; János Sikovanyecz; László Kaiser; Péter Milassin; Attila Pál

Sonographic scan revealed a homogenously hyperechogenic lesion in the right fetal lung with microcystic pattern by a primigravid women at 22nd weeks of gestation. A large congenital pulmonary airway malformation (CPAM) was suspected with a lesion-to-lung ratio over 90%. The microcystic image of this thoracic anomaly was moderately visible on magnetic resonance imaging (MRI) at that early stage of the pregnancy. Fetopsy confirmed the diagnosis as a pure microcystic CPAM following termination of pregnancy. A controlled prospective study could be performed to compare ultrasound as a diagnostic modality to the MRI, focusing on volumetry, signal characteristics, and follow-up/regression of fetal pulmonary malformations.


Orvosi Hetilap | 2018

Az ultrahangmódszerek szerepe a férfimeddőség kivizsgálásában

Zsuzsanna Fejes; Norbert Pásztor; Lilla Karczagi; Ádám Brzózka; István Király; Zita Morvay; András Palkó

Unintended childlessness affects approximately 9-15% of couples in the reproductive age. It is known that a remarkable proportion of infertility is caused by the disorders of the male reproductive functions. Diagnostic imaging methods and especially ultrasonography play a crucial role in the infertility work-up, the ultrasound examination has become the method of choice for imaging in diseases affecting the testis. With the development of high resolution transducers and technology using colour Doppler, pulsed Doppler, share wave elastography and strain elastography, it is now possible to make accurate diagnoses. However, the place of the new imaging methods in the algorithm of infertility check-up should be clearly defined. Orv Hetil. 2018; 159(21): 815-822.Unintended childlessness affects approximately 9-15% of couples in the reproductive age. It is known that a remarkable proportion of infertility is caused by the disorders of the male reproductive functions. Diagnostic imaging methods and especially ultrasonography play a crucial role in the infertility work-up, the ultrasound examination has become the method of choice for imaging in diseases affecting the testis. With the development of high resolution transducers and technology using colour Doppler, pulsed Doppler, share wave elastography and strain elastography, it is now possible to make accurate diagnoses. However, the place of the new imaging methods in the algorithm of infertility check-up should be clearly defined. Orv Hetil. 2018; 159(21): 815-822.


Journal of Obstetrics and Gynaecology | 2018

Evaluation of the relation between placental weight and placental weight to foetal weight ratio and the causes of stillbirth: a retrospective comparative study

Norbert Pásztor; János Sikovanyecz; Attila Keresztúri; Zoltan Kozinszky; Gábor Németh

Abstract The aim of the present study was to evaluate the clinical importance of placental weight (PW) and placental weight to foetal weight (PW/FW) ratio according to maternal characteristics, pathological conditions in obstetrics and the causes of foetal death by category in stillbirths. The results of autopsies and placental histopathological examinations for 145 singleton stillbirths were reviewed retrospectively. Pathological features of the placenta were significantly associated with lower PW compared to the group with no pathological placental parameters (230 grams versus 295 grams, p = .045). Foetal growth restriction (FGR) with pre-eclampsia (PE) was accompanied by significantly lower FW, PW and PW/FW compared to FGR cases without PE (1045 grams versus 1405 grams, p = .026, 200 grams versus 390 grams, p = .006 and .19 versus .24, p = .037, respectively), whereas a similar trend was not observed in the non-FGR pregnancies complicated by PE. Oligohydramnios was accompanied by lower foetal weight compared to those who had normal amount of amniotic fluid (650 grams versus 1400 grams, p = .006). Among the clinical factors, only PE and oligohydramnios contributed to disproportionate fetoplacental growth in stillbirth, while none of the categories of stillbirth was related to unequal fetoplacental growth. Impact statement What is already known on this subject: In 27% of stillbirths, pathological features of the placenta or placental vascular bed are recorded. Underlying placental pathology contributes to foetal growth restriction (FGR) in approximately 50%. Although placental weight relative to foetal weight (PW/FW ratio) is an indicator of foetal as well as placental growth, data on PW/FW in stillbirth has not yet been published. What the results of this study add: Causes of death do not show any correlation with PW/FW ratio. Placentas derived from pregnancies complicated by pre-eclampsia (PE) and concomitant FGR are smaller and PW/FW is also diminished. Oligohydramnios is associated with an enhanced risk of restricted placental growth. FGR is not correlated with any categories of causes of death. What the implications are of these findings for clinical practice and/or further research: Sonographic follow-up of placental volume and FW can predict the stillbirth in PE complicated by FGR and oligohydramnios.


Orvosi Hetilap | 2017

Férfi hormonális fogamzásgátlás: múlt, jelen, jövő

Norbert Pásztor; Borbála Eszter Hegyi; Attila Badó; Gabor Nemeth

Absztrakt: A vilag egyes reszein a nepesseg nagyaranyu novekedese komoly gazdasagi es nepegeszsegugyi kihivast jelent, mig mas orszagokban a hatekony fogamzasgatlasi igenyt szemelyes motivaciok hatarozzak meg. A jelenleg szeles korben hozzaferhető fogamzasgatlasi modszerek java resze a nők feladata, mig igen korlatozott azoknak a modszereknek a szama, amelyekert a ferfi a felelős. Korabbi tanulmanyok alapjan ismert, hogy a terhessegek jelentős hanyada nem kivant terhesseg, illetve, hogy lehetőseg eseten a ferfiak a fogamzasgatlasban nagyobb szerepet vallalnanak. Tobbek kozott emiatt indultak el az elmult evtizedekben olyan vizsgalatok, amelyek egy megfelelő ferfi hormonalis fogamzasgatlasi modszer kifejleszteset tűztek ki celul. A modszer alapja a kulsőleg bevitt hatoanyaggal az agyalapi mirigy folliculusstimulalo es luteinizalo hormon elvalasztasanak gatlasa, amely kovetkezmenyesen gatolja a here tesztoszteron- es spermiumtermeleset is. A temaban megjelent tanulmanyok előszor tesztoszteronszarmazekot, ma...

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J. Daru

University of Szeged

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