4- Causes and Incidence of Laparoscopic Cholecystectomy Conversion

Abdul-Wahab, Adnan Y; Taha, Safwan A; Mutlak, Salam T

doi:10.33762/bsurg.2009.55258

Cited by 2 publications

(4 citation statements)

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“…From the graph, it can be seen as the filler loading increases, the tensile strength decreases. Similar results were reported by Shuhadah and Supri and Abdullah et al . Shuhadah and Supri used low‐density polyethylene as their matrix, whereas they used ESP as their filler in their research work.…”

Section: Resultssupporting

confidence: 84%

“…Shuhadah and Supri used low‐density polyethylene as their matrix, whereas they used ESP as their filler in their research work. On the other hand, Abdullah et al used high‐density polyethylene as their matrix and chicken ESP as their filler in their studies. This result directly indicates that the tensile strength strongly depends on the interfacial adhesion between the filler and matrix, which in this case, ESP acts as the filler and PVC as the matrix.…”

Section: Resultsmentioning

confidence: 99%

“…Considerable interest has been generated in the manufacture of thermoplastic composites because of their unique properties, including their good mechanical properties, their thermal stability, and a reduced product cost . Because of the combination of more than one material, the properties of composites are influenced by many factors, such as filler characteristics, filler content, and interfacial adhesion . This type of thermoplastic composite is widely used for different engineering applications in modern technology, for example, in construction and transportation .…”

Section: Introductionmentioning

confidence: 99%

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The effect of blending sequence on the structure and properties of poly(vinyl chloride)/chicken eggshell powder composites

Sharmeeni

Munusamy

Ismail

2015

Vinyl Additive Technology

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The effect of the blending sequence of poly(vinyl chloride)/chicken eggshell powder (PVC/ESP) composites on the processing, mechanical properties, morphology, and thermal decomposition were investigated. The compounding of composites was done by using a Rheomix mixture internal mixer at 1808C and a rotor speed of 30 rpm for 10 min to allow the mixing torque to reach a steady state. The mechanical and morphological properties of PVC/ESP composites under different blending sequences have been characterized by a lightweight tensile tester and scanning electron microscopy. The thermal stability and thermal analysis of the composites were performed by thermogravimetric and differential scanning calorimetric analysis. Good interfacial adhesion between filler and matrix in composites prepared via blending sequence 2 has improved the tensile strength and thermal stability of the PVC/ESP composite compared with blending sequence 1 as proved from scanning electron microscopy results on the tensile fracture surface of the composites. Thermogravimetric analysis results show that blending sequence 2 exhibited higher thermal stability comparable with blending sequence 1. In addition, the differential scanning calorimetric analysis results illustrate that the composites prepared via blending sequence 2 exhibit higher melting and crystallization temperature values compared with composites prepared via blending sequence 1. J. VINYL ADDIT. TECHNOL., 23:298-304,

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Section: Resultssupporting

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effect of blending sequence on the structure and properties of poly(vinyl chloride)/chicken eggshell powder composites

Sharmeeni

Munusamy

Ismail

2015

Vinyl Additive Technology

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“…In this study, we found that increase GB wall thickness on preoperative ultrasound which encountered in 39 patients out of 110 patients (35.5%) were associated with increase operative difficulty in 18 patients out of 39 patients, and our conversion rate to open surgery in six patients out of 110 patients (5.5%) was within the range reported by several other studies (1 -10%) as in Indian one conducted in 2017 with a report of conversion rate of 10% (16) , in USA in 2010 were the rate was 9% (17) , and a local study in Iraq in 2007 (18) where the rate was 5%. In this study, GB wall thickness significantly determines the difficulty during surgery.…”

Section: Discussionsupporting

confidence: 80%

Gall Bladder Wall Thickness: Sonographic Accuracy and Laparoscopic Cholecystectomy Conversion Rate, Evaluated by Histopathology

2020

IJFMT

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Background: Preoperative prediction of a difficult laparoscopic cholecystectomy can help the patient as well as the surgeon to prepare better for intraoperative risk and the risk of conversion to open Cholecystectomy.Aim of study: Evaluation the impact of gall bladder wall thickness, on the outcome of laparoscopic cholecystectomy and conversion rate to open cholecystectomy assessed by sonography preoperative and postoperative measurement of gall bladder wall thickness by histopathology. Patients and Methods:A prospective study conducted in the surgical unit, Department of surgery, Baghdad Teaching Hospital between November 2010 and November 2011. Abdominal Sonography performed in 110 consecutive patients before laparoscopic cholecystectomy. The surgeon re-verified sonographic finding in operative room, and postoperatively, the gall bladder specimens were sent for histopathological measurement of wall thickness.Results: Out of 110 patients with cholecystolithiasis on sonography, we encountered easy laparoscopic cholecystectomy in 80 patients (72.7%), difficult laparoscopic cholecystectomy in 24 (21.8%) and the procedure was converted to open cholecystectomy in six patients (5.5%). The difference between Sonographic and histological measurement was within 1 mm in 102 patients (92.7%), and the other 8 patients was with 1.5 mm (7.3%) with sensitivity of (100%), specificity of (83.3%) and accuracy of (97%). Conclusion:An accurate preoperative diagnostic sonography is mandatory for planned laparoscopic gall bladder surgery to provide information for the selection of the most appropriate approach and avoid intraoperative difficulties and surprises. On sonography gall bladder wall thickening is the most sensitive indicator of technical difficulties during laparoscopic cholecystectomy. Such difficulties may require conversion to laparotomy.

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4- Causes and Incidence of Laparoscopic Cholecystectomy Conversion

Cited by 2 publications

References 0 publications

The effect of blending sequence on the structure and properties of poly(vinyl chloride)/chicken eggshell powder composites

The effect of blending sequence on the structure and properties of poly(vinyl chloride)/chicken eggshell powder composites

Gall Bladder Wall Thickness: Sonographic Accuracy and Laparoscopic Cholecystectomy Conversion Rate, Evaluated by Histopathology

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