Knowledge that Transforms

The categories listed below are used to classify books, book reviews, journal articles, and dissertations indexed in JEL and EconLit. The list details the full three-digit classifications used to index journal articles in JEL on CD, EconLit, and e-JEL on www.e-JEL.org . The Annotated Listing of New Books printed in this issue uses the bold face one- and two-digit classifications; the Book Reviews in each issue and the Doctoral Dissertations List printed in December appear under the one-digit classification headings. Please note that books, book reviews, and dissertations are indexed in EconLit using the full three-digit classifications. Those who classify papers or dissertations should choose the most appropriate three-digit classification. New changes to classification system appear as soon as possible on www.AEAweb.org .

Our policy is to annotate all English-language books on economics and related subjects that are sent to us. A very small number of foreign-language books are called to our attention and annotated by our consulting editors or others. Our staff does not monitor and order books published; therefore, if an annotation of a book does not appear six months after the publication date, please write to us or the publisher concerning the book. An Index of Authors of New Books appearing in the Annotated Listings will appear at the end of the General Index in the December issue. The annotations appearing in this section were written by Ms. Ann Norman. The articles appearing in the Subject Index in e-JEL, JEL on CD, and EconLit were classified under the direction of Professor Asatoshi Maeshiro, Editorial Consultant, assisted by Ms. Helen Lafferty, Dr. Charles McCann, Dr. Manhar Vyas, Ms. Jane Caldwell Wallace, Dr. Jerry Wells, and Ms. Katherine Wolfe.

Our policy is to annotate all English-language books on economics and related subjects that are sent to us. A very small number of foreign-language books are called to our attention and annotated by our consulting editors or others. Our staff does not monitor and order books published; therefore, if an annotation of a book does not appear six months after the publication date, please write to us or the publisher concerning the book. An Index of Authors of New Books appearing in the Annotated Listings will appear at the end of the General Index in the December issue.

The categories listed below are used to classify books, book reviews, journal articles, and dissertations indexed in JEL and EconLit. The list details the full three-digit classifications used to index journal articles in JEL on CD, EconLit, and e-JEL on www.e-JEL.org . The Annotated Listing of New Books printed in this issue uses the bold face one- and two-digit classifications; the Book Reviews in each issue and the Doctoral Dissertations List printed in December appear under the on-digit classification headings. Please note that books, book reviews, and dissertations are indexed in EconLit using the full threedigit classifications. Those who classify papers or dissertations should choose the most appropriate three-digit classification. New changes to classification system appear as soon as possible on www.AEAweb.org .

Our policy is to annotate all English-language books on economics and related subjects that are sent to us. A very small number of foreign-language books are called to our attention and annotated by our consulting editors or others. Our staff does not monitor and order books published; therefore, if an annotation of a book does not appear six months after the publication date, please write to us or the publisher concerning the book. An Index of Authors of New Books appearing in the Annotated Listings will appear at the end of the General Index in the December issue. The annotations appearing in this section were written by Ms. Ann Norman. The articles appearing in the Subject Index in e-JEL, JEL on cd, and EconLit were classified under the direction of Professor Asatoshi Maeshiro, Editorial Consultant, assisted by Ms. Helen Lafferty, Dr. Charles McCann, Dr. Manhar Vyas, Ms. Jane Caldwell Wallace, Dr. Jerry Wells, and Ms. Katherine Wolfe.

We present two cases of cricoid chondronecrosis treated with hyperbaric oxygen (HBO 2 ) therapy. Both patients presented with biphasic stridor and dyspnea several weeks after an intubation event. Tracheostomy was ultimately performed for airway protection, followed by antibiotic treatment and outpatient HBO 2 therapy. Both patients were decannulated within six months of presentation and after at least 20 HBO 2 therapy sessions. Despite a small sample size, our findings are consistent with data supporting HBO 2 therapy's effects on tissue edema, neovascularization, and HBO 2 potentiation of antibiotic treatment and leukocyte function. We suggest HBO 2 therapy may have accelerated airway decannulation by way of infection resolution as well as the revitalization of upper airway tissues, ultimately renewing the structural integrity of the larynx. When presented with this rare but significant clinical challenge, physicians should be aware of the potential benefits of HBO 2 therapy.