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1.
Int J Cardiol ; 381: 2-7, 2023 06 15.
Article in English | MEDLINE | ID: mdl-36898584

ABSTRACT

BACKGROUND AND AIMS: Ischemic or bleeding events might occur after transcatheter aortic valve replacement (TAVR), with the potential to hamper clinical outcomes. This study aimed to characterize the average daily ischemic risks (ADIRs) and the average daily bleeding risks (ADBRs) over 1-year in all consecutive patients undergoing TAVR. METHODS: ADBR included all bleeding events according to VARC-2 definition, and ADIR included cardiovascular deaths, myocardial infarction and ischemic stroke. ADIRs and ADBRs were assessed within different timeframes post TAVR: acute (0-30 days), late (31-180 days), and very late (>181 days). Generalized estimating equations were used to test the least squares mean differences for the pairwise comparison of ADIRs and ADBRs. Our analysis was performed in the overall cohort and according to antithrombotic strategy (LT-OAC vs No LT-OAC). RESULTS: Ischemic burden was higher than bleeding burden, independently from the indication to LT-OAC, and in all timeframes examined. In the overall population, ADIRs were three-fold ADBRs (0.0467 [95% CI, 0.0431-0.0506] vs 0.0179 [95% CI, 0.0174-0.0185]; p < 0.001*). While ADIR was significantly higher in the acute phase, ADBR was relatively stable in all timeframes analysed. Of note, in LT-OAC population, OAC + SAPT group showed lower ischemic risk and higher bleeding events compared with OAC alone (ADIR: 0.0447 [95% CI: 0.0417-0.0477] vs 0.0642 [95% CI: 0.0557-0.0728]; p < 0.001*, ADBR 0.0395 [95% CI: 0.0381-0.0409] vs 0.0147 [95% CI: 0.0138-0.0156]; p < 0.001*). CONCLUSIONS: In patients undergoing TAVR Average daily risk fluctuates over time. However, ADIRs overcome ADBRs in all timeframes, especially in the acute phase and regardless of antithrombotic strategy adopted.


Subject(s)
Aortic Valve Stenosis , Transcatheter Aortic Valve Replacement , Humans , Transcatheter Aortic Valve Replacement/adverse effects , Platelet Aggregation Inhibitors/adverse effects , Fibrinolytic Agents/adverse effects , Treatment Outcome , Hemorrhage/chemically induced , Hemorrhage/diagnosis , Hemorrhage/epidemiology , Ischemia , Registries , Aortic Valve Stenosis/diagnosis , Aortic Valve Stenosis/surgery , Aortic Valve/surgery , Risk Factors
4.
Acta ortop. mex ; 33(4): 265-270, jul.-ago. 2019. graf
Article in Spanish | LILACS | ID: biblio-1284952

ABSTRACT

Resumen: Introducción: Las fracturas escapulares comprenden 1% del total de las fracturas en general y de 3 a 5% del hombro, las cuales se presentan por alta energía en pacientes jóvenes. Sólo 10% tiene indicación quirúrgica al tomarse como base la alteración de complejo suspensorio del hombro. El objetivo es valorar el resultado de pacientes con indicación quirúrgica así como una revisión de la literatura. Reporte de casos: Presentamos dos pacientes con fractura del cuerpo escapular derecho Bartonicek D con desplazamiento mediolateral, deformidad angular anteroposterior y alteración del ángulo glenopolar. Se realizó el manejo quirúrgico con osteosíntesis y placas convencionales y anatómicas. Se realizó valoración funcional y seguimiento radiográfico de ambos casos a los seis meses y se obtuvo arcos de movilidad flexión 180o/170o en ambos casos, así como escalas funcionales DASH 22/25, Constant 90/89 y Simple Shoulder Test 11/11 respectivamente; se obtuvo una consolidación ósea grado III-IV de Montoya. Discusión: Se considera importante realizar una adecuada reducción y estabilización del trazo de fractura debido al bajo grado de satisfacción con tratamiento conservador en pacientes con alta demanda funcional, que consiste en dolor residual, pinzamiento y disquinesia escapular. Se recomienda la cirugía para estas fracturas ya que comprometen la cadena cinética del hombro e impactan en el resultado funcional a corto y mediano plazo.


Abstract: Introduction: Scapular fractures comprise 1% of all fractures and 3 to 5% of the shoulder, they occur in young patients by high energy trauma. Only 10% have surgical indication based on the alteration of the shoulder's suspensory complex. The objective is to assess the outcome of patients with surgical indication as well as a review of the literature. Case report: We present two patients with Bartonicek D fracture of the right scapular body with mediolateral displacement, anteroposterior angular deformity and alteration of the glenopolar angle. Surgery was performed on both cases with conventional and special anatomical plates. Functional assessment and radiographic follow-up of both cases were performed at 6 months, obtaining flexion mobility of 180º/170º in both cases, as well as functional scales DASH 22/25, Constant 90/89 and Simple Shoulder Test 11/11 respectively; with bone consolidation grade III-IV of Montoya. Discussion: Due to the low degree of satisfaction with conservative treatment in patients with high functional demand, and multiple complications consisting in residual pain, impingement and scapular dyskinesia; it is important to perform an adequate reduction and stabilization of the fracture. We recommend surgical management for this type of fractures since they compromise the kinetic chain of the shoulder and impact the functional outcome in the short and medium term.


Subject(s)
Humans , Shoulder Fractures/surgery , Shoulder Joint , Fracture Fixation, Internal , Scapula/injuries , Shoulder , Range of Motion, Articular , Treatment Outcome , Shoulder Injuries
5.
Clin Exp Immunol ; 198(2): 273-280, 2019 11.
Article in English | MEDLINE | ID: mdl-31314904

ABSTRACT

Regulated transcriptional readthrough during stress maintains genome structure and ensures access to genes that are necessary for cellular recovery. A broad number of genes, including of the bacterial sensor Toll-like receptor 4 (TLR-4), are markedly transcribed on initiating the systemic inflammatory response. Here we study the transcriptional patterns of tlr4 and of its modulator grp78 during human sepsis, and establish their correlations with the outcome of patients. We measured the daily tlr4 and grp78 RNA expression levels in peripheral blood of septic patients, immediately after admission to intensive care, and modeled these RNA values with a sine damping function. We obtained negative correlations between the transcription of tlr4 and grp78 RNA in the survivor group. In contrast, such relation is lost in the deceased patients. Loss of transcriptional homeostasis predicted by our model within the initial 4 days of hospitalization was confirmed by death of those patients up to 28 days later.


Subject(s)
Heat-Shock Proteins/immunology , Models, Biological , Sepsis/immunology , Toll-Like Receptor 4/immunology , Transcription, Genetic/immunology , Adult , Aged , Disease-Free Survival , Endoplasmic Reticulum Chaperone BiP , Female , Heat-Shock Proteins/blood , Humans , Male , Middle Aged , RNA, Messenger/blood , RNA, Messenger/immunology , Sepsis/blood , Sepsis/mortality , Survival Rate , Toll-Like Receptor 4/blood
7.
Brain Res Bull ; 150: 61-74, 2019 08.
Article in English | MEDLINE | ID: mdl-31102752

ABSTRACT

Glaucoma is a common cause of visual impairment and blindness, characterized by retinal ganglion cell (RGC) death. The mechanisms that trigger the development of glaucoma remain unknown and have gained significant relevance in the study of this neurodegenerative disease. P2X7 purinergic receptors (P2X7R) could be involved in the regulation of the synaptic transmission and neuronal death in the retina through different pathways. The aim of this study was to characterize the molecular signals underlying glaucomatous retinal injury. The time-course of functional, morphological, and molecular changes in the glaucomatous retina of the DBA/2J mice were investigated. The expression and localization of P2X7R was analysed in relation with retinal markers. Caspase-3, JNK, and p38 were evaluated in control and glaucomatous mice by immunohistochemical and western-blot analysis. Furthermore, electroretinogram recordings (ERG) were performed to assess inner retina dysfunction. Glaucomatous mice exhibited changes in P2X7R expression as long as the pathology progressed. There was P2X7R overexpression in RGCs, the primary injured neurons, which correlated with the loss of function through ERG measurements. All analyzed MAPK and caspase-3 proteins were upregulated in the DBA/2J retinas suggesting a pro-apoptotic cell death. The increase in P2X7Rs presence may contribute, together with other factors, to the changes in retinal functionality and the concomitant death of RGCs. These findings provide evidence of possible intracellular pathways responsible for apoptosis regulation during glaucomatous degeneration.


Subject(s)
Glaucoma/metabolism , Receptors, Purinergic P2X7/metabolism , Animals , Cell Death/physiology , Disease Models, Animal , Female , Glaucoma/pathology , Mice , Mice, Inbred C57BL , Mice, Inbred DBA , Neurodegenerative Diseases/genetics , Neurodegenerative Diseases/metabolism , Neurodegenerative Diseases/pathology , Retina/metabolism , Retina/pathology , Retinal Ganglion Cells/metabolism , Retinal Ganglion Cells/pathology
8.
Acta Ortop Mex ; 33(4): 265-270, 2019.
Article in Spanish | MEDLINE | ID: mdl-32246600

ABSTRACT

INTRODUCTION: Scapular fractures comprise 1% of all fractures and 3 to 5% of the shoulder, they occur in young patients by high energy trauma. Only 10% have surgical indication based on the alteration of the shoulders suspensory complex. The objective is to assess the outcome of patients with surgical indication as well as a review of the literature. CASE REPORT: We present two patients with Bartonicek D fracture of the right scapular body with mediolateral displacement, anteroposterior angular deformity and alteration of the glenopolar angle. Surgery was performed on both cases with conventional and special anatomical plates. Functional assessment and radiographic follow-up of both cases were performed at 6 months, obtaining flexion mobility of 180º/170º in both cases, as well as functional scales DASH 22/25, Constant 90/89 and Simple Shoulder Test 11/11 respectively; with bone consolidation grade III-IV of Montoya. DISCUSSION: Due to the low degree of satisfaction with conservative treatment in patients with high functional demand, and multiple complications consisting in residual pain, impingement and scapular dyskinesia; it is important to perform an adequate reduction and stabilization of the fracture. We recommend surgical management for this type of fractures since they compromise the kinetic chain of the shoulder and impact the functional outcome in the short and medium term.


INTRODUCCIÓN: Las fracturas escapulares comprenden 1% del total de las fracturas en general y de 3 a 5% del hombro, las cuales se presentan por alta energía en pacientes jóvenes. Sólo 10% tiene indicación quirúrgica al tomarse como base la alteración de complejo suspensorio del hombro. El objetivo es valorar el resultado de pacientes con indicación quirúrgica así como una revisión de la literatura. REPORTE DE CASOS: Presentamos dos pacientes con fractura del cuerpo escapular derecho Bartonicek D con desplazamiento mediolateral, deformidad angular anteroposterior y alteración del ángulo glenopolar. Se realizó el manejo quirúrgico con osteosíntesis y placas convencionales y anatómicas. Se realizó valoración funcional y seguimiento radiográfico de ambos casos a los seis meses y se obtuvo arcos de movilidad flexión 180o/170o en ambos casos, así como escalas funcionales DASH 22/25, Constant 90/89 y Simple Shoulder Test 11/11 respectivamente; se obtuvo una consolidación ósea grado III-IV de Montoya. DISCUSIÓN: Se considera importante realizar una adecuada reducción y estabilización del trazo de fractura debido al bajo grado de satisfacción con tratamiento conservador en pacientes con alta demanda funcional, que consiste en dolor residual, pinzamiento y disquinesia escapular. Se recomienda la cirugía para estas fracturas ya que comprometen la cadena cinética del hombro e impactan en el resultado funcional a corto y mediano plazo.


Subject(s)
Fracture Fixation, Internal , Shoulder Fractures , Shoulder Joint , Humans , Range of Motion, Articular , Scapula/injuries , Shoulder , Shoulder Fractures/surgery , Shoulder Injuries , Treatment Outcome
9.
Transplant Proc ; 50(10): 3650-3655, 2018 Dec.
Article in English | MEDLINE | ID: mdl-30586839

ABSTRACT

BACKGROUND: Cardiovascular disease is a major contributing factor to long-term mortality after liver transplantation (LT). METHODS: This study evaluated the evolution of atherogenic risk in liver transplant recipients (LTRs). Thirty-six subjects were prospectively enrolled at 12 months and followed for 48 months after liver transplantation. Serum biomarkers of endothelial dysfunction (sICAM-1 and sVCAM-1), chronic inflammation (serum amyloid A), and oxidative stress (myeloperoxidase) were measured at 12 and 48 months after LT. Additionally, at 12 months all patients underwent a cardiac computed tomography (CT) scan and a coronary artery calcium score (CACS). RESULTS: The prevalence of risk factors of metabolic syndrome (MS) increased over the course of the study. The patients' sVCAM-1 and sICAM-1 increased from 1.82 ± 0.44 ng/mL to 9.10 ± 5.82 ng/mL (P < .001) and 0.23 ± 0.09 ng/mL to 2.7 ± 3.3 ng/mL, respectively from month 12 to 48. Serum myeloperoxidase increased from 0.09 ± 0.07 ng/mL to 3.46 ± 3.92 ng/mL (P < .001) over the course of the study. Serum amyloid A also increased from 21.4 ± 40.7 ng/mL at entry to 91.5 ± 143.6 ng/mL at end of study (P < .001). CONCLUSION: No association between these biomarkers and MS was noted. The cardiac CT revealed mild and moderate disease in 19% and 25% of the cohort, respectively. No association between serum biomarkers and CACS was noted. Serum biomarkers of atherogenic risk increase rapidly in LTRs and precede coronary plaques.


Subject(s)
Atherosclerosis/etiology , Cardiovascular Diseases/etiology , Liver Transplantation/adverse effects , Metabolic Syndrome/etiology , Postoperative Complications/etiology , Adult , Atherosclerosis/epidemiology , Biomarkers/blood , Calcium/analysis , Cardiovascular Diseases/epidemiology , Female , Follow-Up Studies , Humans , Intercellular Adhesion Molecule-1/blood , Male , Metabolic Syndrome/epidemiology , Middle Aged , Peroxidase/blood , Postoperative Complications/epidemiology , Postoperative Period , Prevalence , Prospective Studies , Risk Factors , Serum Amyloid A Protein/metabolism , Vascular Cell Adhesion Molecule-1/blood
10.
Invest Ophthalmol Vis Sci ; 59(11): 4392-4403, 2018 09 04.
Article in English | MEDLINE | ID: mdl-30193320

ABSTRACT

Purpose: The purpose of this study was to study the effect of minocycline and several neurotrophic factors, alone or in combination, on photoreceptor survival and macro/microglial reactivity in two rat models of retinal degeneration. Methods: P23H-1 (rhodopsin mutation), Royal College of Surgeon (RCS, pigment epithelium malfunction), and age-matched control rats (Sprague-Dawley and Pievald Viro Glaxo, respectively) were divided into three groups that received at P10 for P23H-1 rats or P33 for RCS rats: (1) one intravitreal injection (IVI) of one of the following neurotrophic factors: ciliary neurotrophic factor (CNTF), pigment epithelium-derived factor (PEDF), or basic fibroblast growth factor (FGF2); (2) daily intraperitoneal administration of minocycline; or (3) a combination of IVI of FGF2 and intraperitoneal minocycline. All animals were processed 12 days after treatment initiation. Retinal microglial cells and cone photoreceptors were immunodetected and analyzed qualitatively in cross sections. The numbers of microglial cells in the different retinal layers and number of nuclei rows in the outer nuclear layer (ONL) were quantified. Results: IVI of CNTF, PEDF, or FGF2 improved the morphology of the photoreceptors outer segment, but only FGF2 rescued a significant number of photoreceptors. None of the trophic factors had qualitative or quantitative effects on microglial cells. Minocycline treatment reduced activation and migration of microglia and produced a significant rescue of photoreceptors. Combined treatment with minocycline and FGF2 had higher neuroprotective effects than each of the treatments alone. Conclusions: In two animal models of photoreceptor degeneration with different etiologies, minocycline reduces microglial activation and migration, and FGF2 and minocycline increase photoreceptor survival. The combination of FGF2 and minocycline show greater neuroprotective effects than their isolated effects.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Disease Models, Animal , Fibroblast Growth Factor 2/therapeutic use , Minocycline/therapeutic use , Neuroprotective Agents/therapeutic use , Retinal Degeneration/drug therapy , Animals , Cell Survival , Ciliary Neurotrophic Factor/pharmacology , Drug Therapy, Combination , Eye Proteins/pharmacology , Fluorescent Antibody Technique, Indirect , Injections, Intraperitoneal , Intravitreal Injections , Microglia/drug effects , Microglia/metabolism , Nerve Growth Factors/pharmacology , Rats , Rats, Sprague-Dawley , Retinal Degeneration/physiopathology , Serpins/pharmacology
11.
Exp Eye Res ; 174: 93-97, 2018 09.
Article in English | MEDLINE | ID: mdl-29856984

ABSTRACT

In this study we have compared the response to optic nerve crush (ONC) and to optic nerve transection (ONT) of the general population of retinal ganglion cells in charge of the image-forming visual functions that express Brn3a (Brn3a+RGCs) with that of the sub-population of non-image forming RGCs that express melanopsin (m+RGCs). Intact animals were used as control. ONT and ONC were performed at 0.5 mm from the optic disk, and retinas dissected 3, 5, 7, 14, 30, 45 or 90 days later (n = 5/injury/time point). In all the retinas, Brn3a+RGCs and m+RGCs were identified and their survival analyzed quantitatively and topographically. There were no differences in the course of RGC loss between lesions. The decrease of RGCs was significant at short time points (3 or 5 days for Brn3a+ or m+ RGCs, respectively) and, up to 14 days, the course of loss of both RGC populations was similar, surviving at this time point between 20 and 22% of their original population. However, while the loss of Brn3a+RGCs continues steadily up to 90 days when only 5-6% of them still remain, the loss of m+RGCs stops at 14 days, and the proportion of surviving m+RGCs remains constant up to 90 days (26-30%). In conclusion, m+RGC do not respond to axotomy in the same way than the rest of RGCs, and so whilst image-forming RGCs die in two exponential phases a quick one and a slow protracted one, non-image forming RGCs die only during the first quick phase.


Subject(s)
Optic Nerve Injuries/pathology , Retinal Ganglion Cells/pathology , Rod Opsins/metabolism , Animals , Cell Survival , Crush Injuries/pathology , Disease Models, Animal , Mice
12.
Tissue Cell ; 51: 24-31, 2018 Apr.
Article in English | MEDLINE | ID: mdl-29622084

ABSTRACT

We studied the effect of alcohol on the pineal gland of 48 male Wistar rats. Animals were divided into control and experimental groups. The experimental group underwent a previous progressive alcoholisation period with ethanol diluted in water at a concentration of 40%. Animals were sacrificed at 3, 6, 9 and 12 months, and the ultrastructure, karyometric indices, and number of synaptic bodies in the pineal gland were analysed. The results showed progressive morphologic alterations in the ethanol-treated animals, which culminated in fatty degeneration of the pineal parenchyma after 6 months. The karyometric indices decreased in both the central and peripheral areas compared with the control group. Moreover, the seasonal rhythmicity observed in the controls disappeared in the experimental groups, whose number of different populations of synaptic bodies (synaptic ribbons and synaptic spherules) considerably lowered with inversion of their normal seasonal rhythm. These results support that chronic alcoholisation leads to fatty degeneration of the pineal parenchyma, and a considerable alteration in nuclear functional rhythms and synaptic bodies.


Subject(s)
Central Nervous System Depressants/toxicity , Ethanol/toxicity , Pineal Gland/drug effects , Pineal Gland/pathology , Animals , Circadian Rhythm/drug effects , Male , Microscopy, Electron, Transmission , Pineal Gland/ultrastructure , Rats , Rats, Wistar
15.
Exp Eye Res ; 170: 40-50, 2018 05.
Article in English | MEDLINE | ID: mdl-29452106

ABSTRACT

We have investigated the long term effects of two different models of unilateral optic nerve (ON) lesion on retinal ganglion cells (RGCs) and their axons, in the injured and contralateral retinas of adult albino mice. Intact animals were used as controls. The left ON was intraorbitally crushed or transected at 0.5 mm from the optic disk and both retinas were analyzed at 2, 3, 5, 7, 14, 30, 45 or 90 days after injury. RGCs were immunoidentified with anti-Brn3a, and their axons with anti-highly phosphorylated axonal neurofilament subunit H (pNFH). After both lesions, RGC death in the injured retinas is first significant at day 3, and progresses quickly up to 7 days slowing down till 90 days. In the same retinas, the anatomical loss of RGC axons is not evident until day 30. However, by two days after both lesions there are changes in the expression pattern of pNFH: axonal beads, axonal club- or bulb-like formations, and pNFH+RGC somas. The number of pNFH+RGC somata peak at day 5 after either lesion and is significantly higher than in intact retinas at all time points. pNFH+RGC somata are distributed across the retina, in accordance with the pattern of RGC death which is diffuse and homogenous. In the contralateral retinas there is no RGC loss, but there are few pNFH+RGCs from day 2 to day 90. In conclusion, in albino mice, axotomy-induced RGC death precedes the loss of their intraretinal axons and occurs in two phases, a rapid and a slower, but steady, one. Injured retinas show similar changes in the pattern of pNFH expression and a comparable course of RGC loss.


Subject(s)
Nerve Crush , Nerve Degeneration/pathology , Nerve Fibers/pathology , Optic Nerve Injuries/pathology , Retinal Ganglion Cells/pathology , Animals , Axotomy , Cell Count , Cell Survival , Female , Fluorescent Antibody Technique, Indirect , Mice , Microscopy, Fluorescence , Neurofilament Proteins/metabolism , Transcription Factor Brn-3A/metabolism
16.
Acta ortop. mex ; 31(5): 228-232, sep.-oct. 2017. tab, graf
Article in Spanish | LILACS | ID: biblio-886572

ABSTRACT

Resumen: Introducción: La artropatía por desgarro masivo del manguito de los rotadores (ADMMR) condiciona un desplazamiento de la cabeza humeral acompañada de acetabularización del acromion y femoralización de la glenoides. El objetivo de este estudio fue conocer la prevalencia de la ADMMR en el Instituto Nacional de Rehabilitación (INR). Material y métodos: Se realizó un estudio de prevalencia que incluyó la revisión de 400 expedientes para identificar a 136 pacientes con lesión del manguito de los rotadores. Se integró un subgrupo para pacientes con lesión masiva del manguito de los rotadores (LMMR) y ADMMR. Se estudiaron variables y se estadificaron. Resultados: Se incluyeron 34 pacientes con LMMR (26 mujeres y 8 hombres) con una edad promedio de 60.1 ± 10.26 años. Se registró una prevalencia de 25% de LMMR en el grupo global con lesión del manguito de los rotadores. Asimismo, se buscó la prevalencia de ADMMR en el grupo global y en el subgrupo de lesiones masivas, siendo de 19 y 76%, respectivamente. Los pacientes con LMMR se estadificaron para conocer el grado de ADMMR mediante la clasificación de Seebauer, encontrando 32% con estadios 1a, 11% 1b, 32% 2a, 0% 2b y 23% no presentaban datos de ADMMR. Conclusión: La prevalencia de ADMMR en pacientes del servicio incluido con lesión del manguito de los rotadores y LMMR es mayor a la reportada en la literatura sajona.


Abstract: Introduction: Glenohumeral arthritis secondary to massive rotator cuff tear presents with a superior displacement and femoralization of the humeral head with coracoacromial arch acetabularization. The purpose of this study was to establish prevalence of rotator cuff tear artropathy (CTA) at our institution. Material and methods: Four hundred electronic records were reviewed from which we identified 136 patients with rotator cuff tears. A second group was composed with patients with massive cuff tears that were analized and staged by the Seebauer cuff tear arthropathy classification. Results: Thirty four patients with massive rotator cuff tears were identified, 8 male and 26 female (age 60.1 ± 10.26 years). Massive rotator cuff tear prevalence was 25%. CTA prevalence found in the rotator cuff group was 19 and 76% in the massive cuff tears group. Patients were staged according to the classification with 32% in stage 1a, 11% 1b, 32% 2a and 0% 2b. Conclusion: CTA prevalence in patients with rotator cuff tears and massive cuff tears is higher than the one reported in American population. We consider that a revision of the Seebauer classification to be appropriate to determine its reliability.


Subject(s)
Humans , Male , Female , Humeral Head , Rotator Cuff Injuries/epidemiology , Prevalence , Reproducibility of Results , Rotator Cuff
17.
Tech Coloproctol ; 21(7): 567-572, 2017 Jul.
Article in English | MEDLINE | ID: mdl-28752340

ABSTRACT

BACKGROUND: The medial approach in laparoscopic splenic flexure mobilization is based on the entrance to the lesser sac just above the ventral edge of the pancreas (VEOP). The artery of Moskowitz runs through the base of the mesocolon, just above the VEOP. The aim of this study was to assess the incidence of the artery of Moskowitz, its route and its distance from the VEOP. METHODS: We performed a cadaveric study on 27 human cadavers. The vascular arcades of the splenic flexure were dissected, the number of vascular arches, and the origin and localization of its terminal anastomosis were recorded. The splenic flexure avascular space (SFAS) was defined as the avascular zone in the mesocolon delimited by the VEOP, middle colic artery, ascending branch of the left colic artery and the vascular arch of the splenic flexure nearest to the VEOP and was quantified as the distance between the VEOP and the most proximal arch RESULTS: The artery of Drummond was identified in 100% of the cadavers. In 5 of 27 (18%) Riolan's arch was present, and in 3 of 27 (11%) the Moskowitz artery was found. The mean distance from the VEOP to the artery of Moskowitz was 0.3 cm (SD 0.04). This vascular arch travelled from the origin of the middle colic artery to the distal third of the ascending branch of the left colic artery. The SFAS was greater (p = 0.001) in cadavers that only presented the artery of Drummond (mean 6.8 cm; SD 1.25) than in those with Riolan's arch (mean 4.5 cm; SD 0.5) CONCLUSIONS: In the medial approach for laparoscopic mobilization of the splenic flexure, when only one of the arches is present, the avascular area is an extensive and secure territory. If the artery of Moskowitz is present, the area is nonexistent and this would contraindicate the approach due to risk of iatrogenic bleeding. A radiological preoperatory study could be essential for accurate and safe surgery in this area.


Subject(s)
Colon, Transverse/surgery , Laparoscopy/methods , Mesenteric Artery, Inferior/surgery , Mesenteric Artery, Superior/surgery , Mesocolon/blood supply , Cadaver , Colon, Transverse/blood supply , Female , Humans , Male , Mesocolon/surgery , Middle Aged , Pancreas/blood supply , Pancreas/surgery
19.
Acta Ortop Mex ; 31(5): 228-232, 2017.
Article in Spanish | MEDLINE | ID: mdl-29518297

ABSTRACT

INTRODUCTION: Glenohumeral arthritis secondary to massive rotator cuff tear presents with a superior displacement and femoralization of the humeral head with coracoacromial arch acetabularization. The purpose of this study was to establish prevalence of rotator cuff tear artropathy (CTA) at our institution. MATERIAL AND METHODS: Four hundred electronic records were reviewed from which we identified 136 patients with rotator cuff tears. A second group was composed with patients with massive cuff tears that were analized and staged by the Seebauer cuff tear arthropathy classification. RESULTS: Thirty four patients with massive rotator cuff tears were identified, 8 male and 26 female (age 60.1 ± 10.26 years). Massive rotator cuff tear prevalence was 25%. CTA prevalence found in the rotator cuff group was 19 and 76% in the massive cuff tears group. Patients were staged according to the classification with 32% in stage 1a, 11% 1b, 32% 2a and 0% 2b. CONCLUSION: CTA prevalence in patients with rotator cuff tears and massive cuff tears is higher than the one reported in American population. We consider that a revision of the Seebauer classification to be appropriate to determine its reliability.


INTRODUCCIÓN: La artropatía por desgarro masivo del manguito de los rotadores (ADMMR) condiciona un desplazamiento de la cabeza humeral acompañada de acetabularización del acromion y femoralización de la glenoides. El objetivo de este estudio fue conocer la prevalencia de la ADMMR en el Instituto Nacional de Rehabilitación (INR). MATERIAL Y MÉTODOS: Se realizó un estudio de prevalencia que incluyó la revisión de 400 expedientes para identificar a 136 pacientes con lesión del manguito de los rotadores. Se integró un subgrupo para pacientes con lesión masiva del manguito de los rotadores (LMMR) y ADMMR. Se estudiaron variables y se estadificaron. RESULTADOS: Se incluyeron 34 pacientes con LMMR (26 mujeres y 8 hombres) con una edad promedio de 60.1 ± 10.26 años. Se registró una prevalencia de 25% de LMMR en el grupo global con lesión del manguito de los rotadores. Asimismo, se buscó la prevalencia de ADMMR en el grupo global y en el subgrupo de lesiones masivas, siendo de 19 y 76%, respectivamente. Los pacientes con LMMR se estadificaron para conocer el grado de ADMMR mediante la clasificación de Seebauer, encontrando 32% con estadios 1a, 11% 1b, 32% 2a, 0% 2b y 23% no presentaban datos de ADMMR. CONCLUSIÓN: La prevalencia de ADMMR en pacientes del servicio incluido con lesión del manguito de los rotadores y LMMR es mayor a la reportada en la literatura sajona.


Subject(s)
Humeral Head , Rotator Cuff Injuries , Female , Humans , Male , Prevalence , Reproducibility of Results , Rotator Cuff , Rotator Cuff Injuries/epidemiology
20.
New Microbes New Infect ; 14: 93-97, 2016 Nov.
Article in English | MEDLINE | ID: mdl-27818775

ABSTRACT

Human infections associated with Corynebacterium kroppenstedtii are rarely reported, and this organism is usually described as antibiotic sensitive. Almost all published cases of C. kroppenstedtii infections have been associated with breast pathology in women and have been described in New Zealand, France, Canada, India and Japan. Here we describe the microbiologic characteristics of two strains isolated from two women diagnosed of granulomatous mastitis in Spain. One C. kroppenstedtii isolate was antibiotic sensitive while the other was multidrug resistant. Biochemical identification was possible using a wide battery of methods including API Coryne V2.0, API Strep, API NH, API NE, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and 16S rRNA gene amplification and sequencing. Antimicrobial susceptibility to 28 antibiotics as determined by Etest showed one isolate being sensitive to benzylpenicillin, ciprofloxacin, moxifloxacin, gentamicin, vancomycin, clindamycin, tetracycline, linezolid and rifampin. The second isolate showed resistance to ciprofloxacin, moxifloxacin, clindamycin, tetracycline and rifampin. The multidrug-resistant isolate contained the erm(X), tet(W), cmx, aphA1-IAB, strAB and sul1 resistance genes known from the R plasmid pJA144188 of Corynebacterium resistens. These genes were absent in the genome of the antibiotic-sensitive isolate. This report confirms the tropism of this microorganism for women's breasts and presents the first description of a multidrug-resistant C. kroppenstedtii strain.

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