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https://www.readbyqxmd.com/read/27142063/current-concepts-of-anatomy-and-electrophysiology-of-the-sinus-node
#1
Cliona Murphy, Ralph Lazzara
The sinoatrial node, or sinus node, of humans is the principal pacemaker of the heart. Over the last century, studies have unraveled the complex molecular architecture of the sinus node and the expression of unique ion channels within its specialized myocytes. Aim of this review is to describe the embriology, the anatomy, the histology and the electrophisiology of the sinus node.
June 2016: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/27076713/a-rare-aspect-of-crohn-s-disease-pulmonary-involvement-in-a-child
#2
Ebru Atike Ongun, Reha Artan, Aysen Bingol, Oguz Dursun
Crohn's disease (CD), known as the disease of gastrointestinal system, is a granulamatous systemic disorder with extraintestinal manifestations including the respiratory system. The resemblance in the embriological origins and the immunities of both organ systems' mucosae, also the circulating immune complexes and the autoantibodies are accepted as contributing factors. The shift of inflammation may become prominent when the colon is removed after colectomy and independent of the bowel disease activity; pulmonary involvement may be exarbecated...
February 2016: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/27072173/functional-anatomy-of-pelvic-floor
#3
REVIEW
Salvatore Rocca Rossetti
Generally, descriptions of the pelvic floor are discordant, since its complex structures and the complexity of pathological disorders of such structures; commonly the descriptions are sectorial, concerning muscles, fascial developments, ligaments and so on. On the contrary to understand completely nature and function of the pelvic floor it is necessary to study it in the most unitary view and in the most global aspect, considering embriology, philogenesy, anthropologic development and its multiple activities others than urological, gynaecological and intestinal ones...
March 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/26988540/ovarian-damage-after-laparoscopic-cystectomy-for-endometrioma
#4
Oana Mircea, Edina Bartha, Mihai Gheorghe, Traian Irimia, Radu Vlădăreanu, Lucian Puşcaşiu
INTRODUCTION: Despite extensive research endometriosis is an area with important controversies. The European Society of Human Reproduction and Embriology issued in 2014 the last Guideline for endometriosis management including the statement that among 83 recommendations in 32 cases the best available evidence was only based on good clinical practice, further research being necessary to solve the lack of evidence in this pathology. The prevalence of endometriosis is unknown in Romania but in the medical literature estimates range from 2 to 10% of women of reproductive age, to 50% of infertile women, worldwide...
January 2016: Chirurgia
https://www.readbyqxmd.com/read/26091139/challenges-with-robotic-low-anterior-resection
#5
G Formisano, A Marano, P P Bianchi, G Spinoglio
Dramatic improvements in the local recurrence rate of patients with rectal cancer have been observed after the introduction of the embriologically-based concept of total mesorectal excision by Heald more than 30 years ago. During the last decades, advances in multimodal treatment have further contributed to improve outcomes, but surgery still play a major role. Laparoscopic surgery for rectal cancer has been validated in randomized controlled trials to be oncologically as safe and effective as the open approach with better short-term postoperative outcomes...
October 2015: Minerva Chirurgica
https://www.readbyqxmd.com/read/25866380/-arachnoid-cysts-embriology-and-pathology
#6
REVIEW
Mario García-Conde, Lucia Martín-Viota
There is still great controversy surrounding the origin of the arachnoid cyst. The most accepted theory in the case of congenital cysts explains how they are formed from an anomalous development of the arachnoid membrane, which is unfolded allowing the accumulation of cerebrospinal fluid inside and creating a cyst. This theory seems to explain the origin of convexity and sylvian cistern arachnoid cysts, whereas those in other locations might be due to other mechanisms. In the anatomopathological analysis, the arachnoid cyst wall can be seen as having few differences from normal, although thickened due to an increase quantity of collagenous material...
May 2015: Neurocirugía
https://www.readbyqxmd.com/read/25820804/-fistulas-of-the-lower-urinary-tract-in-children
#7
Luca Tonegatti, Maria-Grazia Scarpa, Ilaria Goruppi, Damiana Olenik, Waifro Rigamonti
A lower urinary tract fistula consist in an abnormal connection between bladder, urethra and adjacent abdominal organs or skin. There are several types of urinary fistulas in paediatric age and they may be congenital or acquired. Etiology may be due to embriological defects, infectious processes, malignant tumours, pelvic irradiation as well as complications following surgical procedures, especially postsurgical repair of hypospadia or epispadia. Clinical presentation depends on the type of fistula and diagnosis is based on signs, symptoms and radiological or endoscopic examinations...
January 2015: Urologia
https://www.readbyqxmd.com/read/23054068/proposal-of-guidelines-for-the-appraisal-of-semen-quality-studies-semqua
#8
M C Sánchez-Pozo, J Mendiola, M Serrano, J Mozas, L Björndahl, R Menkveld, S E M Lewis, D Mortimer, N Jørgensen, C L R Barratt, M F Fernández, J A Castilla
STUDY QUESTION: Is there a need for a specific guide addressing studies of seminal quality? SUMMARY ANSWER: The proposed guidelines for the appraisal of SEMinal QUAlity studies (SEMQUA) reflect the need for improvement in methodology and research on semen quality. WHAT IS KNOWN ALREADY: From an examination of other instruments used to assess the quality of diagnostic studies, there was no guideline on studies of seminal quality. STUDY DESIGN, SIZE AND DURATION: Through systematic bibliographic search, potential items were identified and grouped into four blocks: participants, analytical methods, statistical methods and results...
January 2013: Human Reproduction
https://www.readbyqxmd.com/read/22844835/-hypospadias-one-stage-repair
#9
S Ionescu, B Andrei, S Tîrlea, O Amăriuţei
The tubularised incised plate (TIP) is a common surgical technique used in the treatment of hypospadias. The study includes 52 urethroplasties, performed between 2007-2010. We performed Mathieu urethroplasty in 12% of the cases, Duplay urethroplasy in 88% of the cases and we used the Snoodgrass technique in 82% of the cases. The hospital stay varied between 3-8 days after surgery. We included in the study 32 patients with distal penile hypospadias, 8 with proximal hypospadias and 12 with midshaft hypospadias...
May 2012: Chirurgia
https://www.readbyqxmd.com/read/20734639/-clinical-hormonal-and-metabolic-characteristics-of-different-phenotypes-of-polycystic-ovary-syndrome-in-bulgarian-population
#10
S Kavardzhikova, B Pechlivanov
AIM: Our aim was to investigate the percentage occurrence of different phenotypes of polycystic ovary syndrome (PCOS) in a Bulgarian population, and their clinical, metabolic and hormonal characteristics. METHODS: The study included 110 women with PCOS, diagnosed according to the Europian Society of Human Reproduction & Embriology/American Society for Reproductive Medicine criteria. The women were divided into four phenotypes: hyperandrogenism (HA) + oligo-/ anovulation (OA) + polycystic ovaries at ultrasound (PCO) ( full-blown syndrome, phenotype A); HA + OA (former Institute of Health definition, phenotype B); OA + PCO (phenotype C); and HA + PCO (phenotype D)...
2010: Akusherstvo i Ginekologii︠a︡
https://www.readbyqxmd.com/read/20036951/biomarkers-in-neuroendocrine-tumors
#11
REVIEW
Massimiliano Berretta, Alessandro Cappellani, Maria Di Vita, Salvatore Berretta, Guglielmo Nasti, Alessandra Bearz, Umberto Tirelli, Vincenzo Canzonieri
Here, we review the role of clinical biomarkers (tissue and circulating markers) in the management of neuroendocrine tumors. These tumors may originate in different organs, from cells embriologically different but expressing common phenotypic characteristics, such as the immuno-reactivity for markers of neuro endocrine differentiation (defined as "pan-neuroendocrine"), the capacity to sec rete specific or aspecific peptide and hormones, and the expression of some receptors, that are at the basis of the current diagnostic and therapeutic approach...
2010: Frontiers in Bioscience (Scholar Edition)
https://www.readbyqxmd.com/read/19606802/-adult-urachal-cyst
#12
REVIEW
Alfonso Serrano Ysern, Lianette M Pérez, Jaime A Acosta
Urachal Cyst pathologies comprise lesions that arise at the medial infraumblical line which is rarely seen in an adult. It has interesting and varied forms of clinical presentations which represent a diagnostic challenge for the clinician. Persistency of the Urachus is due to failure of the normal obliteration process which occurs embriologically during the 4th gestational month. This gives way to a lesion that should be taken into account while considering the differential diagnoses of the cystic pathologies of the region...
April 2006: Boletín de la Asociación Médica de Puerto Rico
https://www.readbyqxmd.com/read/19504038/absence-of-the-right-common-carotid-artery
#13
Alfonso Cerase, Elisa Rubenni, Rossana Tassi, Maria Laura Stromillo, Carlo Venturi
In a 33-year-old male patient with multiple sclerosis, brain magnetic resonance imaging incidentally showed a narrow right intracranial internal carotid artery. Gadolinium-enhanced magnetic resonance angiography showed absence of the right common carotid artery. Right external and internal carotid arteries arose separately from the ipsilateral innominate artery and subclavian artery, respectively. Color-Doppler ultrasound confirmed this finding. Embriologically, the case could be interpreted as the disappearance of the third aortic arch with persistence of the carotid duct connecting the third and fourth aortic arches...
December 2009: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/18924352/-surgical-relevance-of-some-aspects-of-heart-s-embriology
#14
REVIEW
Santiago Tamames Escobar
We consider some aspects of cardiac embriology which explain the formation of pericardial cysts, anomalies of venae cavae, types of atrial septal defect (ostium primum, secundum, foramen ovale), anomalies in septal ventricular development by absence of structures to perform the septum (atrio-ventricularis communis, truncus arteriosus), lack of alineation (Taussig-Bing's complex, transposition of the great vessels, Eisenmenger's complex, Fallot's tetralogy) or interruption in their development (isolated ventricular septal defect)...
2008: Anales de la Real Academia Nacional de Medicina
https://www.readbyqxmd.com/read/18666590/-the-contribution-of-pathologic-diagnosis-and-research-of-the-faculty-members-engaged-in-teaching-histology-and-embryology-to-undergraduate-medical-studies
#15
Ljiljana Somer, Lalosević Dusan, Matilda Dolai
The theoretical and practical aspects of teaching are generally defined by the curriculum, but professional experience plays an important role as well. The teaching experience of the faculty members is developed through health services, education and research. THE DEPARTMENT OFHISTOLOGY AND EMBRIOLOGY: This paper reviews the activities of the teaching staff of the Department of Histology and Embryology, pointing to the importance of pathologic diagnostics and research. It underlines the necessity of using some non-standard histologic staining methods on some tissues, organs and pathogens, as well as the results of experimental studies of the endocrine system...
November 2007: Medicinski Pregled
https://www.readbyqxmd.com/read/18030849/-fistula-of-the-first-branchial-arch
#16
P Blanco Pérez, A Batuecas Caletrío, A Muñoz Herrera, S Santa Cruz Ruiz, J L Gómez González
The complexity of the embriologic development of the neck and the possible abnomarlies in this process, with the consequent posterior manifestations make necessary the knowledge of the embriologic anatomy of the neck. In the possible manifestations that can be of the anomalies of the development of the branchial archs are the abnomarlies of the first branchial archs. They are, in the anomalies of the development of the branchial archs infrequent and are intimately related with the facial nerve. We present a clinic case of a seven years old boy affected by this pathology and revise its more important aspects...
2007: Anales Otorrinolaringológicos Ibero-americanos
https://www.readbyqxmd.com/read/17586834/impact-of-italian-legislation-regulating-assisted-reproduction-techniques-on-icsi-outcomes-in-severe-male-factor-infertility-a-multicentric-survey
#17
MULTICENTER STUDY
R Ciriminna, M L Papale, P G Artini, M Costa, L De Santis, L Gandini, L Parmegiani, G Ragni, A Revelli, L Rienzi, , R Barbaro, V Cela, I Cino, D Colia, G D'Ambrogio, L Diotallevi, M Dusi, M Filicori, A R Genazzani, G Giuffrida, F Lombardo, A Paffoni, C Racca, E Greco
BACKGROUND: In 2004, a law regulating assisted reproduction techniques (ART) was passed in Italy. The new rules allow for the formation and transfer of a maximum of three embryos at one time, whereas embryo selection and embryo storage are prohibited. The aim of this study is to evaluate the impact of these restrictions on ICSI outcome in couples affected by severe male factor infertility. METHODS: Thirteen Italian ART Units were involved in this study. Data were collected on ICSI cycles performed during 2 years before (control group) and 2 years after (study group) the enforcement of the law...
September 2007: Human Reproduction
https://www.readbyqxmd.com/read/17315620/-uhl-s-anomaly-a-case-report
#18
COMPARATIVE STUDY
Ana María Cadavid Betancur, Luis H Díaz Medina, Rafael Lince Varela, Jorge A Delgado de Bedout
Uhl's anomaly is a rare cardiomyopathy characterized by a thin walled dilated right ventricle due to the absence of myocardium. This could be due to an alteration in embriological development or the presence of massive apoptosis in the right ventricle myocardium. It generally manifests as cardiac failure, and the diagnosis is made by echocardiography and magnetic resonance. The response to medical treatment is poor and there is no known ideal treatment. Isolated cases of different surgical options have been described that include cardiac transplant, but there is still a poor prognosis and a high mortality rate...
October 2006: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/16883510/-the-medulloblastoma
#19
REVIEW
J Figols-Ladrón de Guevara, J V Lafuente-Sánchez
INTRODUCTION AND DEVELOPMENT: Medulloblastoma is a cerebellar small cell tumor, whose ancestor cell has not been yet identified in the human normal embriology: its exact origin is, in fact, still unknown. Nevertheless, one of the most acceptable possibilities facing the origin of the tumor is the remaining rests of cerebellar outer granular sheet. It is a predominantly infantile tumor, less frequent in young adults, and World Health Organization (WHO) classification has assignated grade IV of malignancy...
August 16, 2006: Revista de Neurologia
https://www.readbyqxmd.com/read/16521451/-median-rhomboid-glossitis-change-of-inflammation-origin-or-developmental-anomaly
#20
Katarzyna Nowak, Witold Szyfter
The etiology and pathogenesis of median rhomboid glossitis have been subjects of controversial discussion for a long time. In the past it was thought to be a developmental defect involving the tongue. This condition was believed to have been caused by the failure of the embriologic tuberculum impair to be covered by the lateral processes of the tongue. In the recent years the possible role of Candida albicans has been stressed. It is proposed that Actinomyces like Candida induces pseudoepitheliomatous hyperplasia of the mucosa of the tongue and inflammatory hyperplasia of the underlying connecting tissue, resulting in the characteristic elevated lesion...
2005: Otolaryngologia Polska. the Polish Otolaryngology
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