Analysis of the Relationship between the Degree of Blood Supply and Biological Characteristics of Breast Tumors with the MEM Color System

2015 ◽  
pp. 313-318
Author(s):  
Ch. Sohn
Keyword(s):  
Blood Supply ◽  
Breast Tumors ◽  
Biological Characteristics ◽  
Color System ◽  
The Relationship

Superficial nephron tubular-vascular relationships in the rat kidney

1978 ◽  
Vol 234 (3) ◽  
pp. F207-F214 ◽  
Author(s):  
S. W. Weinstein ◽  
J. Szyjewicz
Keyword(s):  
Proximal Tubule ◽  
Blood Supply ◽  
Close Contact ◽  
Rat Kidney ◽  
Proximal Region ◽  
Functional Interactions ◽  
Pars Recta ◽  
Physical Forces ◽  
The Relationship ◽  
Early Late

Silicone rubber injections of methyl salicylate-cleared rat kidneys were performed. In 50 of 56 injections of superficial nephrons with their accompanying blood supply, the efferent vessel and early proximal tubule were closely approximated. In 18 of 21 tubular injections filling through the pars recta, the proximal tubule folded upon itself with early and late proximal segments, in close contact, located over their parent glomerulus, and the midproximal segments separate and located over their parent interlobular artery. The distribution of blood was serially through the early-late proximal region above the glomerulus via a long unbranched efferent vessel, via branches over the capsular surface, via capillaries down through the midproximal region, then into the interlobular vein. The observed anatomical pattern of the superficial nephron appears to permit direct functional interactions between the juxtaposed early and late proximal tubule, and in turn may effect midproximal function via the distribution of blood (modified by early proximal) from the efferent vessel to midproximal convolutions. In addition, the relationship between specific segments of the proximal tubule and specific portions of the postglomerular peritubular blood supply may be important in determining the distribution of peritubular physical forces to these nephrons.

Structure rétinienne et la Vascularisation intraoculaire chez quelques poissons marins de la région de Gaspé

1968 ◽  
Vol 46 (4) ◽  
pp. 729-745 ◽  
Author(s):  
M. A. Ali ◽  
M. Anctil ◽  
H. M. Mohideen
Keyword(s):  
Blood Supply ◽  
Active Species ◽  
The Third ◽  
Retinal Structure ◽  
Second Category ◽  
The Relationship

Twenty-five species belonging to 12 families were studied. Their habitats ranged from coastal, pelagic zones to depths of about 300 meters. Corresponding variations in retinal structure, intraocular circulation, and activity were observed. Based on these, three categories have been established. The first includes species with poorly developed retinae, very sparse circulation, and no activity, inhabiting deeper waters; the third comprises active species with well-developed retinae and good blood supply, inhabiting coastal or pelagic zones. The second category groups the intermediate forms. Variations in retinal structure and circulation and the relationship between the two aspects are discussed.

scholarly journals Preoperative diagnosis of a “humanoid” fetus in fetu using multimode ultrasound: a case report

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Hualin Yan ◽  
Juxian Liu ◽  
Yan Luo ◽  
Yang Wu ◽  
Lanxin Du
Keyword(s):  
Case Report ◽  
Blood Supply ◽  
Preoperative Diagnosis ◽  
Color Doppler ◽  
Neuron Specific Enolase ◽  
Color Doppler Flow Imaging ◽  
Fetus In Fetu ◽  
Abdominal Tumors ◽  
First Case ◽  
The Relationship

Abstract Background Fetus in fetu (FIF) is a rare congenital anomaly. The preoperative diagnosis of FIF and differentiating it from teratoma and other abdominal tumors can be challenging for radiologists. Clarification of the blood supply and the relationship with the surrounding vessels is especially helpful for successful surgery; however, multimode ultrasound (US) performed for FIF has rarely been explored. Here, we first report a “humanoid” FIF case diagnosed by multimode US examinations, with the use of contrast-enhanced ultrasound (CEUS) for clarifying the blood supply features. Case presentation A 25-day-old preterm male infant was referred to our hospital for surgery. The US and computed tomography (CT) examinations led to a diagnosis of teratoma at the local hospital. The laboratory workup at our hospital revealed an elevation of total bilirubin, direct bilirubin, indirect bilirubin, alpha-fetoprotein, and neuron-specific enolase levels. A precise diagnosis and differentiation from teratoma, hepatoblastoma, neuroblastoma and other abdominal tumors were needed. In addition, the blood supply and the relationship with the surrounding vessels needed clarification prior to surgery. Multimode US examinations were performed and the features of a “humanoid” FIF as well as the blood supply for the abdominal lesion of the infant were suggested by grayscale US, color Doppler flow imaging (CDFI), and CEUS. Furthermore, CDFI and CEUS revealed an aorta-like structure and umbilical cord-like blood vessels in the “humanoid” FIF, and the CEUS helped with marking the surface of the infant’s abdominal wall. To the best of our knowledge, this is the first case report of CEUS in FIF, and the blood supply was clearly demonstrated in the FIF. The intraoperative findings confirmed our multimode US findings and revealed a “humanoid” FIF. The infant quickly recovered after the operation and had no positive findings at the 2-year follow-up visit. Conclusions Multimode US was helpful in diagnosing the rare FIF without radiation exposure. Specifically, CEUS clearly demonstrated the limb branch vessel-like structures, the abdominal aorta-like structure and the blood supply, which was useful for the FIF diagnosis and for avoiding damage to important vessels during the operation.

scholarly journals Operative wound-related complications after cranial revascularization surgeries

2015 ◽  
Vol 123 (5) ◽  
pp. 1145-1150 ◽  
Author(s):  
Keisuke Takanari ◽  
Yoshio Araki ◽  
Sho Okamoto ◽  
Hideyoshi Sato ◽  
Shunjiro Yagi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Logistic Regression ◽  
Regression Analysis ◽  
Blood Supply ◽  
Operative Technique ◽  
Multivariate Logistic Regression Analysis ◽  
Wound Complication ◽  
Wound Complications ◽  
Multivariate Logistic Regression ◽  
The Relationship

OBJECT Intracranial revascularization surgeries are an effective treatment for moyamoya disease and other intracranial vascular obliterative diseases. However, in some cases, wound-related complications develop after surgery. Although the incidence of wound complication is supposed to be higher than that with a usual craniotomy, this complication has rarely been the focus of studies in the literature that report the outcomes of revascularization surgeries. Here, the relationship between intracranial revascularization surgeries and their complications is statistically assessed. METHODS Between October 2004 and February 2010, 71 patients were treated using cerebral revascularization surgeries on 98 sides of the head. The relationship between wound complications and operative technique was retrospectively assessed. Multivariate logistic regression analysis was performed to identify the risk factors of wound complication, including operative technique, age, sex, diabetes mellitus (DM), hypertension, hyperlipidemia, and smoking history. RESULTS In total, there were 21 (21.4%) operative wound complications. Of these 21 complications, there were 14 (66.7%) minor complications and 7 (33.3%) major complications. No statistically significant relationship was found between wound complications and any surgical procedure. A trend toward severer complications was demonstrated for the procedures that used both STA branches (“double” procedures) in comparison with the procedures that used only 1 STA branch (“single” procedures, p = 0.016, Cochran-Armitage trend test). Multivariate logistic regression analysis also revealed that double procedures demonstrated a significantly higher incidence of wound complications than single procedures (OR 3.087, p = 0.048). DM was found to be a risk factor for wound complication (OR 9.42, p = 0.02), but age, sex, hypertension, and hyperlipidemia were not associated with the incidence of complications. Even though the blood supply to the scalp is abundant due to 5 arteriovenous systems, sometimes cutaneous necrosis develops after intracranial revascularization surgeries. The galeal blood supply is thought to be crucial for preventing wound-related complications. Special care is also thought to be required for DM patients. CONCLUSIONS Revascularization surgeries seemed to demonstrate a higher risk of wound-related complications. Double-type procedures, which use both branches of the STA, and a history of DM were found to be risk factors for wound-related complications. Attention should be paid to the design of the galeal incision and vessel harvest line. Also, special attention should be paid to patients with DM.

scholarly journals Social networks and the situation of blood donation in Poland: a logistics perspective / Sieci społeczne a sytuacja krwiodawstwa w Polsce w perspektywie logistycznej

Management ◽  
2013 ◽  
Vol 17 (1) ◽  
pp. 153-169
Author(s):  
Jacek Szołtysek ◽  
Sebastian Twaróg ◽  
Martyna Wronka
Keyword(s):  
Social Networks ◽  
Supply Chains ◽  
Blood Supply ◽  
Blood Donors ◽  
Blood Donation ◽  
Bullwhip Effect ◽  
Secondary Role ◽  
The Impact ◽  
The Relationship ◽  
Size And Structure

Summary This article aims to present the impact of social networks on the formation on the flow of blood and its components in the civilian blood donation system in Poland. The civilian blood donation system in Poland consists of 21 independently-functioning supply chains of blood and its components (Szołtysek, Twaróg 2009, p. 15). Today, logistics plays a secondary role in the management of blood supply chains, and the integration of flow is performed randomly and intuitively. The rapidly growing recognition of social logistics (T. Takahasi 1988, pp. 245 - 251; Tenhunen 2008, pp. 515-534; Szołtysek 2010, pp. 2-6; Szołtysek 2011, pp.13-18) provides tools to improve the efficiency of the blood donation system in terms of both the existing blood supply chains, and the potential offered by network structures. An unexpected change in demand for blood and its components probably induces a bullwhip effect, and the organizations that form the chains have to deal with supplies unreasonable in terms of their size and structure. A major role in this process is played by social networks, as a source of general mobilization among potential blood donors. Finding a way to change the relationship between social networks and the system of blood donation may minimize the disruptions occurring in the flow of blood and its components in Poland.

RELATIONSHIP OF INTERLEUKIN-6 AND BLOOD FLOW IN THE UMBILICAL ARTERY DURING EXCERVATION OF MONO- AND MIXT-CYTOMEGALOVIRAL INFECTION IN THE SECOND TRIMESTER OF PREGNANCY

2020 ◽  
Author(s):  
Irina Andrievskaya ◽  
A Milovanov ◽  
Igor Gorikov ◽  
Inna Dovzhikova ◽  
Nataliya Ishutina
Keyword(s):  
Blood Flow ◽  
Pregnant Women ◽  
Blood Supply ◽  
Interleukin 6 ◽  
Cytomegalovirus Infection ◽  
Umbilical Artery ◽  
Second Trimester ◽  
Relationship Of ◽  
The Relationship

In order to determine the role of a cytokine in the regulation of blood supply to the placenta, the relationship between interleukin-6 (IL-6) in serum and blood flow in the umbilical artery in healthy pregnant women and during pregnancy complicated by exacerbation of mono- and mixed cytomegalovirus infection in the second trimester was studied

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