World journal of surgery
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World journal of surgery · Jul 2003
ReviewManagement of appendiceal masses in a peripheral hospital in Nigeria: review of thirty cases.
The objective of this work was to conduct a truly rural-based study to evaluate, from our own rural data devoid of influence from urban-based studies, the management of appendiceal masses in a typical peripheral hospital in Nigeria. The study aimed to highlight the results of neglected appendicitis in our community and the occasional difficulty of making a correct preoperative diagnosis. It also sought to draw the attention of the health care practitioner in our community to the importance of continued enlightenment of the people regarding the need to seek medical treatment early. ⋯ No deaths were recorded. The study showed that appendical masses are most prevalent during the fifth decade of life and are rare before age 10 and after age 60. More men are affected than women, and most cases can be diagnosed before surgery, although some patients must await more sophisticated diagnostic tools or surgical exploration for diagnosis.
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World journal of surgery · Jul 2003
Comparative StudySalivary gland sparing and improved target irradiation by conformal and intensity modulated irradiation of head and neck cancer.
The goals of this study were to facilitate sparing of the major salivary glands while adequately treating tumor targets in patients requiring comprehensive bilateral neck irradiation (RT), and to assess the potential for improved xerostomia. Since 1994 techniques of target irradiation and locoregional tumor control with conformal and intensity modulated radiation therapy (IMRT) have been developed. In patients treated with these modalities, the salivary flow rates before and periodically after RT have been measured selectively from each major salivary gland and the residual flows correlated with glands' dose volume histograms (DVHs). ⋯ Additional reduction of xerostomia may be achieved by further sparing of the salivary glands and the non-involved oral cavity. A mean parotid gland dose of < or = 26 Gy should be a planning objective if significant parotid function preservation is desired. The pattern of recurrence suggests that careful escalation of the dose to areas judged to be at highest risk may improve tumor control.