Previous Results For Case Research Articles

Use of platelet gel after surgery for wound breakdown prevention in recurrent vulvar cancer: case report

BackgroundVulvar carcinomas comprise almost 5% of all malignanttumors of the female genital tract [1]. Primary therapeu-tic approach is considered a radical surgery [2].Infection and wound breakdown are the most commoncomplications, these occur in approximately 40-60% ofpatients [3]. Objective to valuetheefficacyofplateletgel as support for reconstructive surgery in recurrentvulvar cancer.Materials and methodsFive old caucasian women with a history of vulvar cancer,referred to our Department, were treated for recurrentvulvar cancer. Before the vulvar surgery recostruction, anapplication of platelet gel was performed.ResultsOur data about wound healing, compared to results ofprevious cases of vulvar recurrence treated by ourdepartment, immediately show a reduction of complica-tions, early healing and patient mobilization with lesshospital stay, minimizing the costs. Other advantages ofthis new technique are the facility of application, noinfluence on operative time and low cost.ConclusionsIn consideration of the most frequent complications thatare reported after surgical treatment of vulvar recur-rence, as difficult and longer healing due to frequentnecrosis and breakdown of wounds, we had experimen-ted with the use of platelet gel [3]. In fact, thanks to itsproperties of regenerating and repairing tissues, plateletgel is being used ever more frequently in reconstructivesurgery [4]. The biological properties of platelet gelare basically due to the high concentrations of growthfactors (GF) [4].

Two-step filtering datamining method integrating case-based reasoning and rule induction

Case-based reasoning (CBR) methods are applied to various target problems on the supposition that previous cases are sufficiently similar to current target problems, and the results of previous similar cases support the same result consistently. However, these assumptions are not applicable for some target cases. There are some target cases that have no sufficiently similar cases, or if they have, the results of these previous cases are inconsistent. That is, the appropriateness of CBR is different for each target case, even though they are problems in the same domain. Thus, applying CBR to whole datasets in a domain is not reasonable. This paper presents a new hybrid datamining technique called two-step filtering CBR and rule induction (TSFCR), which dynamically selects either CBR or RI for each target case, taking into consideration similarities and consistencies of previous cases. We apply this method to three medical diagnosis datasets and one credit analysis dataset in order to demonstrate that TSFCR outperforms the genuine CBR and RI.

An interactive case-based reasoning method considering proximity from the cut-off point

Case-based reasoning (CBR) models often solve problems by retrieving multiple previous cases and integrating those results. However, conventional CBR makes decisions by comparing the integrated result with the cut-off point irrespective of the degree of the adjacency between them. This can cause increasing misclassification error for the target cases adjacent to the cut-off point, since the results of previous cases used to produce those results are relatively inconsistent with each other. In this article, we suggest a new interactive CBR model called grey-zone case-based reasoning (GCBR) that makes decisions focusing additional attention on the cases near the cut-off point by interactive communication with users. GCBR classifies results automatically for the cases placed outside the cut-off point boundary area. On the other hand, it communicates with users to make decision for the cases placed inside the area by verifying characteristics of the dataset. We suggest the architecture of GCBR and implement its prototype.

One-Stage Repair of Skin and Tendon Digital Defects Using the Arterialized Venous Flap with Palmaris Longus Tendon: An Additional Four Cases

The use of the arterialized venous flap with a palmaris longus tendon transfer has previously been reported. Further trials of this technique were conducted in four patients to reconstruct complicated finger injuries involving loss of skin and extensor tendon. In contrast to the results of previous cases, those of recent cases are more encouraging. This technique may be the procedure of choice in patients with digital skin defects, where there are associated extensor tendon defects with exposed bone.

Analysis of two-dimensional viscous flow over cylinders in unsteady motion

The two-dimensional, viscous flow around elliptic cylinders undergoing prescribed rotary and translational motions is analyzed. The fluid is taken to be incompressible and initially at rest. Departing from conventional numerical formulations, the body is replaced by fluid which has a rigid motion exactly the same as the actual solid body. This is achieved by placing a uniform vorticity field within the body (equal to twice the instantaneous angular velocity), and bound vorticity on the body surface in the form of a vortex sheet. The latter distribution is governed by an integral equation. The solution is made unique by the principle of conservation of total vorticity. This depends on the instantaneous angular velocity of the body, the new ingredient to this analysis. The free vorticity in the outer flowfield is governed by the usual vorticity transport equation, which is solved numerically. The velocity field is determined by the velocity induction law. Transient flow results are presented for 1) an elliptic cylinder started impulsively from rest with constant angular velocity, and 2) a pitching elliptic cylinder moving with constant translational velocity. Results for case 1 are compared with those from a previous numerical analysis. Previous results for case 2 are not known. Predictions for the drag, lift, and moment coefficients are given over two complete cycles of oscillation.

Blocking - A New Technique for Well Log Interpretation

Abstract Almost all well log measurements at a given depth are influenced by the properties or formations up and down the wellbore. Blocking is a way to eliminate these influences and restore the original signal, while at the same time performing bed thickness corrections. In addition to obtaining more accurate log values for estimating formation properties, blocking opens the way to a zone-by-zone analysis on the computer. Introduction A very basic fact about well logs is that they all require interpretation. One reason is that the log reading at a given depth does not represent the exact value at this point but is affected by formation characteristics up and down the well. The usual way to deal with this problem is to divide the log into zones corresponding to geological formations of relatively constant character and work with average values in every zone, applying all possible corrections. The number of intervals that can be picked possible corrections. The number of intervals that can be picked is limited by the amount of calculations that have to be performed. The values thus obtained are averaged. Computerized well log data processing allows the log analyst to perform all of the calculations at every depth where the measurements were made, thus providing much more data. The point-by-point approach usually taken has its weakness, however, point-by-point approach usually taken has its weakness, however, in that the total zones are not considered. Taking the Spontaneous Potential (SP) curve as an example, we see that it measures correct Potential (SP) curve as an example, we see that it measures correct values only in thick beds, and far enough from bed boundaries. Calculations based on the SP curve close to bed boundaries will be incorrect. If the bed is thin enough, we may not be getting correct calculations anywhere in this bed. Computed well logs, therefore, do not give the answers that are absolutely correct, and have to be interpreted. The error in computed logs becomes pronounced as we get closer to bed boundaries. Some of the calculations are completely wasted. The purpose of this work is to show how to do correct bed by-bed analysis, either manually or with the help of a computer. Since manual processing is already visually taking bed boundaries into account, one can use the algorithm below to obtain better corrections for the log values in cases of complex stratification. For computer-oriented well log processing, this work helps achieve the following goals: * Differentiate between meaningful and random features on the logs by use of specially designed filters. This latter technique is used here to help apply blocking to different logs. It also has other applications, as described below. The whole idea that log values should be constant in each bed, or sedimentary facies, is not new. In fact, it follows from the definition of facies. In the case of an SP curve, the relationship between a block-form static SP and observed SP is a standard topic. These publications also give correction charts for the most simple case of one thin bed surrounded by two identical thick beds - a "sandwich". This work extends the previous results for cases of stratification of any complexity. Another idea related to blocking is the definition of lithofacies from logs by the use of specially defined electrofacies.