The comparison of CT fistulography and MR imaging of perianal fistulae with surgical findings: a case–control study

Purpose

The purpose of this study was to evaluate the diagnostic efficacies of CT fistulography and MRI, in the diagnostic work-up of perianal fistula patients.

Materials and methods

All 41 patients who were included in the study (36 males and 5 females, with an average age of 41 years) underwent CT fistulography and MRI examinations prior to surgery. The fistula characteristics obtained from these examinations were compared with the surgical findings. The comparative results were evaluated by means of the Kappa analysis method.

Results

CT fistulography predicted the correct perianal fistula classification in 30 (73.1%) of the 41 patients, whereas MRI correctly defined fistula classification in 38 (92.7%) of these patients (the K values were 0.621 and 0.896, respectively; with p < 0.001). CT fistulography depicted 29 secondary extensions in 16 patients, whereas MR imaging revealed 28 secondary extensions in 15 patients. A substantial agreement was found between surgical findings and two modalities (K value was 0.789 and 0.793 for CT fistulography and MRI, respectively, with a p value < 0.001). In terms of locations of internal openings, CT fistulography was able to detect the locations in 28 patients (68.2%), whereas MRI was more successful in this aspect, with a number of 35 patients (85.3%). Granulation tissues, inflammation and edema around the fistula, abscesses, and fistular wall fibrosis were also evaluated.

Conclusion

CT fistulography and MRI have different advantages in the diagnosis of perianal fistulas. A good command of knowledge concerning the issue may be a key factor in modality decision.

     

Pressure-controlled palpation: a new technique which increases the reliability of manual palpation

The objective of the present study was to investigate whether the reliability of tenderness evaluation can be increased by using a new technique called "pressure-controlled palpation" (pcp). The technique has been made possible by a newly invented piece of equipment called a palpometer, with which a pressure-sensitive plastic film attached to the index finger records the pressure exerted. In 15 patients with chronic tension-type headache and in 15 healthy volunteers, 2 investigators studied myofascial tenderness using conventional palpation and pressure-controlled palpation. Tenderness was scored on a 4-point scale in each of the examined pericranial regions. The sum of tenderness scores recorded by two observers using conventional palpation differed significantly ( p = 0.0003), while results did not differ between observers using pressure-controlled palpation ( p = 0.89). During palpation with seven different pressure intensities a positive and linear relation between pressure and pain intensity was found ( p = 0.00006). Pain intensity reported by the subjects correlated highly with tenderness scored by the observer ( r_s = 0.95, p < 0.0001). These results demonstrate for the first time that tenderness scores can be compared between observers if palpation pressure is controlled. Pressure-controlled palpation represents a major improvement on current palpation techniques and should be standard in future research on myofascial pain disorders.     

Altered expression of Notch signaling,Tlr receptors,and surfactant protein expression after prostaglandin inhibition may be associated with the delayed labor in LPS-induced mice

Journal of Assisted Reproduction and Genetics - This study aims to investigate whether indomethacin (IND) delays preterm birth by regulating the Notch pathway, Tlr receptors, and Sp-A in the...     

END OF LIFE CARE DECISIONS AND THE HOSPICE MOVEMENT

Inspite of spectacular technological advances made in the recent years, modern medicine has not been able to deny the inevitability of death. Slowly but surely, the approach towards death is changing with increasing emphasis on various end of life care decisions. Many of these decisions are being actively discussed, debated and practised all over the world. Palliative care in hospice has become an accepted mode of management of terminally ill patients, for whom the prognosis is limited. Increase in life expectancy of the Indian people and a strong movement to authorise ex-servicemen for treatment of malignant and other chronic diseases in service hospitals, requires the Armed Forces to consider these end of life care decisions and plan for terminal care in hospice.KEY WORDS: End of Life Care Decision, Hospice, Palliative Care     

COSTING A HOSPITAL SERVICE PRODUCT: MARGINAL Vs ABSORPTION COSTING

Costing a service product is a challenging but important tool for cost control. Different methods used for costing may provide varying costs and the choice of the method used becomes important. Use of absorption costing and marginal costing method and treatment of labour cost as variable and fixed cost provided different results in the present study of the cost of below knee patellar tendon bearing prosthesis. The study shows that marginal costing should also be done along with the absorption cost as it provides better indicator for cost control.Key Words: Absorption Costing, Cost Control, Marginal Costing, Prosthesis