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To drain or not to drain in perforated peptic ulcer
Nail Ersoz,Zafer Kilbas
Journal of Experimental and Integrative Medicine , 2012,
Abstract: In their study, published in the current issue of the Journal of Experimental and Integrative Medicine, Ansari et al investigated the role of prophylactic abdominal drain usage in perforated peptic ulcer (PPU), a frequently performed surgical procedure in the emergency departments. Surgical treatment of PPU has not changed much, i.e. primary closure of the perforation and careful cleansing of the abdominal cavity, since it was described by Johann von Mikulicz-Radecki (1850-1905). There have been different applications related to drain usage and drain numbers in different centers. While a single drain... [J Exp Integr Med 2012; 2(1.000): 45-46]
An Improvised Active Drain
M. O. Ogirima
Nigerian Journal of Surgical Research , 2000,
Abstract: An improvised active drain is designed from intravenous infusion set and recycled RedivacR or Haemovac bottle. Outcome of the use of this system on 100 patients is presented. This suction drainage system had been used in major orthopaedic and common minor surgical procedures and no significant complication was observed. This improvisation is relevant in a depressed economy where it is difficult to buy new sets of this type of drainage system (Nig J Surg Res 2000; 2:161-163) KEY WORDS Active drain, improvised
The Stoppa procedure in inguinal hernia repair: to drain or not to drain
Rodrigues Jr., Aldo Junqueira;Jin, Hwan Yoo;Utiyama, Edivaldo Massazo;Rodrigues, Consuelo Junqueira;
Revista do Hospital das Clínicas , 2003, DOI: 10.1590/S0041-87812003000200007
Abstract: objective: the objective of this study is to evaluate the benefits of drainage in the stoppa procedure for inguinal repair. patients and methods: the use of a suction drain was randomized at the end of the surgical intervention in 26 male patients undergoing inguinal hernia repair, divided into 2 groups: group a, 12 patients undergoing drainage, and group b, 14 patients not undergoing drainage. on the second postoperative day, all patients underwent abdominal pelvic computed tomography scan examination to detect the presence of abdominal fluid collection. results: in group a, no patient developed fluid collection in the preperitoneal space, and 1 patient presented with an abscess in the preperitoneal space on the 15th postoperative day. in group b, 12 patients presented with fluid collections in the preperitoneal space on computed tomography scan evaluation. however, only 3 patients presented minor complications. none of the patients developed a major complication. conclusion: the use of suction drainage with the stoppa procedure does not provide any benefit.
The Stoppa procedure in inguinal hernia repair: to drain or not to drain  [cached]
Rodrigues Jr. Aldo Junqueira,Jin Hwan Yoo,Utiyama Edivaldo Massazo,Rodrigues Consuelo Junqueira
Revista do Hospital das Clínicas , 2003,
Abstract: OBJECTIVE: The objective of this study is to evaluate the benefits of drainage in the Stoppa procedure for inguinal repair. PATIENTS AND METHODS: The use of a suction drain was randomized at the end of the surgical intervention in 26 male patients undergoing inguinal hernia repair, divided into 2 groups: Group A, 12 patients undergoing drainage, and group B, 14 patients not undergoing drainage. On the second postoperative day, all patients underwent abdominal pelvic computed tomography scan examination to detect the presence of abdominal fluid collection. RESULTS: In group A, no patient developed fluid collection in the preperitoneal space, and 1 patient presented with an abscess in the preperitoneal space on the 15th postoperative day. In group B, 12 patients presented with fluid collections in the preperitoneal space on computed tomography scan evaluation. However, only 3 patients presented minor complications. None of the patients developed a major complication. CONCLUSION: The use of suction drainage with the Stoppa procedure does not provide any benefit.
The Elist Drain Retainer: A New Adherent Drain Retainer with Antibacterial Properties  [PDF]
James J. Elist, Gottfried Lemperle, Vaheh Shirvanian, Seyed Alireza Hosseini
Open Journal of Urology (OJU) , 2016, DOI: 10.4236/oju.2016.611027
Abstract: Background: Surgical drains are used in at least half of all surgical operations world-wide. The gold standard for the fixation of drains to the skin is currently the “Roman garter” (RG) technique, which involves knotting a suture around the drain. Its disadvantages include the time to perform the technique, possible loosening and accidental removal, and bacterial infection with biofilm formation if left in place for weeks. Methods: The Elist Drain Retainer (EDR) has been developed, and it consists of a short plastic tube bent to 90° with a side slit for the drain, fixed to a mounting patch with adhesive and an antiseptic. Results: In a clinical trial comparing 25 drain attachments with the RG versus 25 drain attachments with the new EDR, the former took an average of five minutes and the EDR took an average of one minute to place. Loosening occurred in five (20%) drains and accidental removal occurred in four (16%) for the RG group versus no incidences of loosening or accidental removal in the EDR group. Self-removal of the EDR was possible for seven (28%) patients. Conclusion: The EDR demonstrated a clear advantage over the RG in all tested parameters. The lack of instruments and the possibility of self-removal of the EDR when a drain is needed are particularly advantageous features.
Drain Voltage Scaling in Carbon Nanotube Transistors  [PDF]
M. Radosavljevic,S. Heinze,J. Tersoff,Ph. Avouris
Physics , 2003, DOI: 10.1063/1.1610791
Abstract: While decreasing the oxide thickness in carbon nanotube field-effect transistors (CNFETs) improves the turn-on behavior, we demonstrate that this also requires scaling the range of the drain voltage. This scaling is needed to avoid an exponential increase in Off-current with drain voltage, due to modulation of the Schottky barriers at both the source and drain contact. We illustrate this with results for bottom-gated ambipolar CNFETs with oxides of 2 and 5 nm, and give an explicit scaling rule for the drain voltage. Above the drain voltage limit, the Off-current becomes large and has equal electron and hole contributions. This allows the recently reported light emission from appropriately biased CNFETs.
Perfect drain for the Maxwell Fish Eye lens  [PDF]
Juan C. Gonzalez,Pablo Benitez,Juan C. Minano
Physics , 2010, DOI: 10.1088/1367-2630/13/2/023038
Abstract: Perfect imaging for electromagnetic waves using the Maxwell Fish Eye (MFE) requires a new concept: the perfect drain. From the mathematical point of view, a perfect point drain is just like an ideal point source, except that it drains power from the electromagnetic field instead of generating it. We show here that the perfect drain for the MFE can be seen as a dissipative region the diameter of which tends to zero. The complex permittivity $\varepsilon$ of this region cannot take arbitrary values, however, since it depends on the size of the drain as well as on the frequency. This interpretation of the perfect drain connects well with central concepts of electromagnetic theory. This opens up both the modeling in computer simulations and the experimental verification of the perfect drain.
Circuital model for the Maxwell Fish Eye perfect drain  [PDF]
Juan C. Gonzalez,Dejan Grabovickic,Juan C. Minano,Pablo Benitez
Physics , 2012,
Abstract: Perfect drain for the Maxwell Fish Eye (MFE) is a non-magnetic dissipative region placed in the focal point to absorb all the incident radiation without reflection or scattering. The perfect drain was recently designed as a material with complex electrical permittivity that depends on frequency. However, this material is only a theoretical material, so it can not be used in practical devices. Recently, the perfect drain has been claimed as necessary to achieve super-resolution [Leonhard 2009, New J. Phys. 11 093040], which has increased the interest for practical perfect drains suitable for manufacturing. Here, we analyze the super-resolution properties of a device equivalent to the MFE, known as Spherical Geodesic Waveguide (SGW), loaded with the perfect drain. In the SGW the source and drain are implemented with coaxial probes. The perfect drain is realized using a circuit (made of a resistance and a capacitor) connected to the drain coaxial probes. Super-resolution analysis for this device is done in Comsol Multiphysics. The results of simulations predict the super-resolution up to wavelength/3000 and optimum power transmission from the source to the drain.
Drain versus No Drain after Thyroidectomy: A prospective Randomized Clinical Study
PL Chalya, JM Gilyoma, M Mchembe
East and Central African Journal of Surgery , 2011,
Abstract: Background: Drains have been traditionally used routinely after thyroidectomy despite limited evidence to suggest any benefit. We conducted a prospective randomized clinical study to evaluate the necessity of drainage after thyroid surgery. Methods: This was a prospective randomized clinical study which was conducted at Bugando Medical Centre between March 2009 and February 2010. Patients were randomized into two groups i.e. Group A (drain) and Group B (no drain). Results: A total of 62 patients were enrolled in this study and randomly assigned to use drains (n=32) or not (n=30). There was no statistically significant difference in the age, gender, mean operating time, volume of fluid collection in thyroid bed, complication rates and the necessity for re-operation between the two groups (P > 0.001). The mean VAS score was significantly reduced more in Group B (non-drained group) than in Group A (drained group) patients on postoperative day 0 and 1 respectively (P < 0.001). The mean amount of intramuscular analgesic requirement was significantly less in the nondrained group than in the drained group (p-value = 0.021). The mean hospital stay was significantly shorter in the non-drained group when compared to the drained group (P = 0.002). The satisfaction of patients was found to be superior in the non-drained group. Conclusion: We conclude that thyroidectomy without drains is safe and effective and appears to confer several advantages over the routine drainage method and achieves significant reduction of hospital stay, which led to a reduction in costs for the patients
Securing Cloud from Cloud Drain  [PDF]
Niva Das,Tanmoy Sarkar
Computer Science , 2014,
Abstract: Today, in the world of communication, connected systems is growing at a rapid pace. To accommodate this growth the need for computational power and storage is also increasing at a similar rate. Companies are investing a large amount of resources in buying, maintaining and ensuring availability of the system to their customers. To mitigate these issues, cloud computing is playing a major role.The underlying concept of cloud computing dates back to the 50's but the term entering into widespread usage can be traced to 2006 when Amazon.com announced the Elastic Compute Cloud.In this paper, we will discuss about cloud security approaches. We have used the term Cloud-Drain to define data leakage in case of security compromise.
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