Michał Krekora
Memorial Hospital of South Bend
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Michał Krekora.
Fetal Diagnosis and Therapy | 2011
Pawel Sadlecki; Michał Krekora; Grzegorz Krasomski; Malgorzata Walentowicz-Sadlecka; Marek Grabiec; Jacek Moll; M. Respondek-Liberska
Ectopia cordis (EC) is a rare malformation due to failure of maturation of the midline mesodermal components of the chest and abdomen. It can be defined as a complete or partial displacement of the heart outside the thoracic cavity. It comprises 0.1% of congenital heart diseases. Common cardiac anomalies associated with EC are ventricular septal defect, atrial septal defect, and tetralogy of Fallot. EC and additional anomalies usually lead to intrauterine death. The possibility and efficacy of surgery in a surviving neonate depends on the degree of EC, coexisting congenital heart defects and extracardiac malformations. We present a case of prenatally diagnosed isolated EC diagnosed in the first half of pregnancy. After counseling, the patient decided to continue her pregnancy which ended with a newborn baby discharged from the hospital after cardiac surgery performed just after elective cesarean section.
Ultrasound | 2016
Michał Krekora; Katarzyna Zych-Krekora; Marek Blitek; Marcin Kesiak; Anna Piaseczna-Piotrowska; Stanisław Łukaszek; Grzegorz Krasomski; M. Slodki; Krzysztof Szaflik; M. Respondek-Liberska
Prenatal ultrasound at the 20th week of gestation revealed a 3-cm tumour in the sacrococcygeal area. Initially, a sacrococcygeal teratoma was suspected on the basis of fetal ultrasonography, which revealed normal heart anatomy and an increasing tumour mass. The diagnosis was then changed to fetus in fetu or teratoma. Prenatal magnetic resonance imaging at the 34th week of pregnancy confirmed the ultrasound diagnosis. No other anomalies were found. Elective caesarean section was performed at term. The care team included a paediatric surgeon, obstetricians, neonatologists, midwives, and an anesthesiologist. A female newborn was delivered in good condition. The tumour was resected in the operating room and mature teratoma was established by histopathological evaluation. Surprisingly, agenesis of the right forearm was revealed which had not been detected prenatally, despite many examinations (both in our hospital and earlier at a primary care obstetrician office).
Archives of Medical Science | 2016
Lidia Biesiada; Ewa Głowacka; Michał Krekora; Stanisław Sobantka; Aleksandra Krokocka; Grzegorz Krasomski
Introduction Assessment of leptin concentration in the blood of pregnant women (leptin concentration – Lc) and in their newborns, according to their nutritional status. Material and methods Pregnant women (n = 42) were divided into normal body mass (NBM) and excessive body mass (EBM) groups. Neonates were divided into AGA (eutrophic) and LGA (macrosomic) groups. Leptin concentraction was studied in 4 subgroups: NBM/AGA, NBM/LGA, EBM/AGA, EBM/LGA. Results Mothers: A significant correlation was found between maternal Lc and body mass index (BMI) (r = 0.75, p < 0.001). Maternal Lc was 3 times higher than neonatal Lc (p < 0.00001). The NBM mothers showed lower Lc compared to EBM mothers (p = 0.000018). Leptin concentration values in NBM/LGA and NBM/AGA mothers were similar (p = 0.6775). Newborns: Correlations were found between Lc and ponderal index (PI) (r = 0.67, p < 0.001), weight (r = 0.43, p = 0.004) and placental weight (r = 0.56, p < 0.001). Girls presented higher Lc than boys (p = 0.0338). In LGA groups, newborns born to EBM mothers presented higher Lc than those born to NBM mothers (p = 0.0013). In both AGA groups, Lc was similar (AGA/EBM vs. AGA/NBM p = 0.1619). The highest Lc and the largest placentas were found in the group of LGA newborns born to EBM mothers. Conclusions Leptin concentration positively correlates with BMI in pregnant women, with PI and female sex in newborns as well as with placental weight. The nutritional status of fetuses does not affect the Lc of their non-obese mothers. The LGA neonates born to EBM women demonstrate higher Lc than LGA neonates born to NBM mothers, whereas Lc of AGA neonates is similar regardless of the nutritional status of their mothers.
Prenatal Cardiology | 2018
Krzysztof Czajkowski; Ewa Helwich; Krzysztof Preis; Mariusz Grzesiak; Michał Krekora; Ewa Gulczyńska; Katarzyna Kornacka; Krzysztof Zeman; Iwona Maroszyńska; Maria Respondek-Liberska
Abstract On 27.10.2017, in the course of the CARDIO-PRENATAL Conference at the Polish Mother’s Memorial Institute and Health Centre in Lodz, we presented, among others, the following problems: classification of prenatal heart defects, fetal hemodynamic status evaluation in the third trimester, expected neonate’s clinical condition, planned procedures to be conducted just after birth and also planned medical staff to be present in the delivery room. Here are our main recommendations following the meeting and discussion.
Prenatal Cardiology | 2018
Michał Krekora; Mariusz Grzesiak; Maciej Słodki; Ewa Gulczyńska; Iwona Maroszyńska; Maria Respondek-Liberska; Frank A. Chervenak; Laurence B. McCullough
Abstract INTRODUCTION: The aim of this study was to present our current practice of counseling patients and families with the most severe congenital malformations in the 3rd trimester of pregnancy and to develop practical guidelines for our team and involved healthcare/ socialcare professionals. MATERIAL & METHODS: It was a retrospective evaluation of a series of fetal cases in 2017 from single tertiary center. Maternal obstetrical medical history, time of prenatal detection of the anomaly (1st, 2nd or 3rd trimester), time between last fetal echocardiography and delivery, type of delivery, neonatal birth weight and time of neonatal demise. The total study group was subdived into early demise (during the 1st day after delivery) or late demise > 1st day after delivery. RESULTS: Mean maternal age was 30,4 +/- 5,6 years, and varied between 26 and 38 years. No chronic maternal diseases were found in medical history and no congenital malformations were present in previous children. All women had 1st trimester ultrasound, in 9 cases, it was reported as normal (with NT measurement < 2 mm), in 2 cases extracardiac abnormalities were detected: diaphragmatic hernia and omphalocele ( in both fetal karyotype 46,XY). In nine cases, the abnormalities were detected in midgestation and with maternal wish to continue the pregnancies. There were 8 neonatal deaths within 60 minutes after delivery, including one intrapartum death and 3 “late” neonatal deaths in the intensive care unit (on 12th, 21st and 22nd day). We stress upon the prenatal team approach and counseling of future parents, in order to prepare them for poor neonatal outcome. CONCLUSIONS: 1. In the most severe cases when fetal or neonatal demise was suspected, the two different opinions of specialists might not be enough and a third opinion should be recommended before final decision. 2. A Fetal Team of specialists is necessary in cases of expected fetal/neonatal demise in order to prepare a written report of recommended perinatal management for all sides involved in this difficult problem.
Prenatal Cardiology | 2017
Agnieszka Żalińska; Sara Korabiewska; Michał Krekora; Krzystof Michalak; Marek Kopala; Ewa Cichos; Anna Romanowicz; Maciej Słodki; Maria Respondek-Liberska
Abstract Introduction: Fetal cardiac tumors are anomalies, that occur rarely: from Nationwide Register of Fetal Cardiological Problems in Poland in years 2004-2016 amongst 8112 fetuses with cardiological problems, there were 85 fetuses with cardiac tumors, including 52 cases of multiple cardiac tumors (0,64%) and 33 of single anomalies (0,4%). Material: This analysis included 13 cases from single tertiary fetal cardiac center Lodz in years 1993-2017. Results: Ten out of 13 fetuses with single cardiac tumors (SFCT) had cardiomegaly: on average HA/CA was 0,49. The size of the tumor was different: the smallest one - 6 x 6 mm, the biggest 47 x 47 mm. The way of the delivery: in 10 cases there was CS and in 3 cases natural delivery. Birth weight was from 2000-3950 g (average 2989,2 g). Cardiosurgical resection of the tumor was performed on 4 newborns: at 2nd, 4th, 8th and 16th day of life (average 7,5 day). Four neonatal deaths were registered (31%): in 1st 2nd and 11th day (before surgery) and in the 28th day after the operation. Conclusions: Single fetal cardiac tumors (SFCT) can be diagnosed at 20 weeks of pregnancy, which allows to start echocardiographic monitoring, taking into consideration the potential risk of hemodynamic progression. SFCT can be the first sign of tuberous sclerosis complex in later prenatal or postnatal life. SFCT other than rhabdomyoma can be asymptomatic in newborn, but may require an early cardiosurgical resection.
Prenatal Cardiology | 2017
Iwona Strzelecka; Maciej Słodki; Katarzyna Zych-Krekora; Michał Krekora; Mariusz Grzesiak; Iwona Maroszyńska; Maria Respondek-Liberska
Abstract Introduction: Congenital heart defects are the most frequent reason for deaths during the neonatal and early infancy periods. The aim of this study was to retrospectively analyze singleton pregnancy outcomes of premature neonates with congenital cardiac defects delivered by Cesarean section. Materials and methods: A retrospective analysis was performed on 10,800 fetuses evaluated in our referral fetal cardiac center between 2010 and 2016. A group of 58 singleton pregnancies was selected with the following criteria: fetal heart defect, Cesarean section (C-section), and gestation of 37 weeks or less. Exclusion criteria included labor outside of our hospital and multiple pregnancy. Results: Isolated heart defects constituted 74,1% (43 cases) of the analysed data set. The majority of newborns were delivered at 36 weeks of gestation (43,1%), with an average of 33,6 weeks. In one case (1,7%), C-section took place at 22nd week. Birth weight of newborns < 2500g constituted 51,7% (30 cases). Neonatal deaths occurred in 60,3% (35 cases). Conclusions: Preterm neonates with congenital heart defect, delivered by C-section in our reference centre, during 2010 to 2016, had generally poor outcomes and high mortality rate. The average hospital stay of surviving neonates was approximately two months. An improvement of knowledge about prenatal cardiology is necessary in obstetrician management with fetuses with congenital heart diseases.
Prenatal Cardiology | 2017
Katarzyna Zych-Krekora; Michał Krekora; Marek Kopala; Maria Respondek-Libserska
Abstract Introduction: APVS (Absent Pulmonary Valve Syndrome) is a rare congenital heart disease. Its incidence according to The Polish National Registry of Fetal Cardiac Pathology in years 2004 - 2016 was 0.6%.This disease is caused by the absence or the residual pulmonary artery valve resulting in significant dilation of the pulmonary trunk and its branches. In utero deaths are reported. After birth the major problem is respiratory failure and high preoperative and postoperative mortality. Material and methods: In 1995 to 2016, 11 fetuses with APVS were diagnosed in our unit, at the average 27,5 weeks of gestation (min. 18.5- max 37.1 weeks of gestation). Two groups were analysed in this series of cases: “Old one” by 2011 (n = 6) and “New one” since 2011 (n = 5) and perinatal care as well as survival were compared. We analysed the fetal echo results, perinatal care including transplacental digoxin and steroids treatment in NEW group, the longevity of the pregnancy and neonatal/infants outcome. Results: In Old group the average day of cardiac surgery was day 91st after birth (max. 161) and the survival was 50% . In the New group the average surgery day was 41st day and the postoperative survival was 60%, however there was no statistical significance ( p > 0,05). Conclusions: There is no single parameter from prenatal life in foetuses with APVS which may allow to predict the positive outcome meaning neonatal survival. However optimal perinatal care (early detection of defect, transplacental digoxin at least 3-4 weeks, steroids, no preterm delivery, on-time delivery, postnatal care in tertiary center) and relatively early cardiac surgery may have combined impact on the improvement of survival after prenatal diagnosis of APVS, however more data are necessary to prove this hypothesis.
Ginekologia Polska | 2017
Michał Krekora; Katarzyna Zych-Krekora; M. Slodki; Mariusz Grzesiak; M. Respondek-Liberska
Malaria is one of the most common lethal parasitic diseases. Infection is transmitted when an infected female mosquito bites a human introducing the sporozoites into human blood. The article presents the course of pregnancy and delivery in a patient complicated by Plasmodium infection. The patient had repetitive several trips to Tanzania over a short time period before she developed the condition. She had been taking antimalarial medication (proguanil-atovaquone) in a prophylactic dose during and after her first travel to Tanzania. Following her first return to Poland she experienced infection-related symptoms.
Prenatal Cardiology | 2016
Joanna Płużańska; Jacek Więcek; Michał Krekora; Jolanta Kiełbasicz-Binikowska; Tomasz Talar; Maciej Słodki; Maria Respondek-Liberska
Abstract We present the case of aneurysm of the muscular intraventricular septum with accompanying cardiomegaly and abnormal venous flow patterns requiring emergency cesarean section and specialized neonatal treatment. At the age of 8 months our patient has no clinical symptoms with a 6 mm scar in intraventricular muscular septum..