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Biomedical subjects

Gregory T Banever

Publications and source records attributed to Gregory T Banever.

6 recordsLinked to original sources
PubMed2006

Nonoperative correction of pectus carinatum with orthotic bracing.

BACKGROUND: This study sought to evaluate the efficacy of nonoperative compression in correcting pectus carinatum in children. MATERIALS AND METHODS: Children presenting with pectus carinatum between August 1999 and January 2004 were prospectively enrolled in this study. The management protocol included custom compressive bracing, strengthening exercises, and frequent clinical follow-up. RESULTS: There were 30 children seen for evaluation. Their mean age was 13 years (range, 3-16 years) and there were 26 boys and 4 girls. Of the 30 original patients, 6 never returned to obtain the brace, leaving 24 patients in the study. Another 4 subjects were lost to follow-up. For the remaining 20 patients who have either completed treatment or continue in the study, the mean duration of bracing was 16 months, involving an average of 3 follow-up visits and 2 brace adjustments. Five of these patients had little or no improvement due to either too short a follow-up or noncompliance with the bracing. The other 15 patients (75%) had a significant to complete correction. There were no complications encountered during the study period. CONCLUSION: Compressive orthotic bracing is a safe and effective alternative to both invasive surgical correction and no treatment for pectus carinatum in children. Compliance is critical to the success of this management strategy.

Adolescent↗
PubMed2005

Ductal carcinoma in situ in a 16-year-old adolescent boy with gynecomastia: a case report.

Ductal carcinoma in situ (DCIS) of the male breast is rare. Even more rare is the finding of DCIS in association with gynecomastia. After an extensive literature search, only two cases have been reported in the literature, both in adults. Here we present the case of a 16-year-old adolescent boy who presented with pubertal gynecomastia that was treated with bilateral subcutaneous mastectomies. A DCIS focus was found in the right breast specimen, and the patient underwent bilateral completion total mastectomies uneventfully. Despite its rarity, surgeons should be aware of the possibility of the breast of adolescents with gynecomastia harboring a neoplastic focus.

Adolescent↗
PubMed2004

Quantitation of lung sealing in the survival swine model.

PURPOSE: Small intercostal spaces and limited pleural space significantly limits the use of 12-mm stapling devices in pediatric thoracoscopic surgery. The goal of this study was to compare sealing of lung tissue by the 5-mm Ligasure (Valley Lab, Boulder, CO) device to a standard 12-mm Endo-GIA stapler (US Surgical, Norwalk, CT). METHODS: Institutional Animal Care and Use Committee (IACUC) approval was obtained (#A3-02). Sixteen 10-kg female swine were divided between 2 survival surgical groups. Lung biopsy sections of the lingula were taken by 2 methods: group A, left anterolateral thoracotomy employing a 12-mm Endo-GIA stapler and group B, left thoracoscopy employing the Ligasure 5-mm instrument. After a 7-day survival period, lung burst pressures were measured by flow-controlled insufflation into the trachea. RESULTS: Burst pressure measurement reflects the first air leak. By Student's t test analysis there were no statistically significant differences between the burst pressures, biopsy weights, or operating times. Fifty percent (4 of 8) of the animals in group A (Endo-GIA), and 50% (4 of 8) of the animals in group B (Ligasure) developed the first air leak in the nonoperative lung. Two animals, one from each group, had evidence of intrapleural infections at the time of necropsy. These were asymptomatic and did not appear to affect burst pressure measurement. CONCLUSIONS: After 7 days of healing, lung biopsy sites created with both the Ligasure and the Endo-GIA stapler have burst strengths equal to or greater than that of normal lung tissue in the swine survival model.

Animals↗
PubMed2004

Feasibility of thoracoscopic U-clip esophageal anastomosis: an alternative for esophageal atresia reconstruction.

BACKGROUND: The authors propose that U-Clips can significantly decrease the technical difficulty of performing thoracoscopic esophageal reconstruction, thus, reducing operating time, the incidence of postoperative leak, and stricture rate. METHODS: After obtaining Institutional Animal Care and Use Committee approval, 3 4-kg female piglets underwent complete thoracoscopic esophageal transections. The esophagus was reconstructed thoracoscopically using S50 and S60 U-Clips over an 8F transanastomotic tube. Esophagrams were performed on postoperative day (POD) 7, 21, 44, and 77. RESULTS: Mean operating time was 57 minutes (45 to 75 min). Two of 3 piglets had no evidence of leak on POD 7 esophagrams. One animal had a small leak that resolved spontaneously on antibiotics. All 3 piglets tolerated a formula diet orally by POD 8. Over a 77-day survival period all 3 piglets had steady weight gain on an oral diet. CONCLUSIONS: U-Clips are a feasible alternative to sutures for esophageal reconstruction in thoracoscopic surgery. Further study is warranted to investigate the full potential of U-Clips in minimally invasive pediatric surgery.

Anastomosis, Surgical↗
PubMed2003

Pediatric hand treadmill injuries.

The great popularity of physical fitness in modern society has brought many pieces of exercise equipment into our homes for convenience and privacy. This trend has come with an increasing rate of injuries to children who curiously touch moving parts, including treadmill belts. Experience with a recent series of treadmill contact burns to children's hands is described in this article. A retrospective chart review at a tertiary referral center from June 1998 until June 2001 found six children sustaining hand burns from treadmills. The patients' ages at presentation ranged from 15 to 45 months (average of 31 months, three boys and three girls). All injuries occurred in the home while a parent was using the treadmill. Burns involved the palmar aspect of the hand, mostly confined to the fingers, and the severity ranged from partialto full-thickness burns. All patients were initially managed with collagenase and bacitracin zinc/polymyxin B powder dressings to second- and third-degree burns, along with splinting and range-of-motion exercises. Two patients required skin grafting at 2 weeks and 2 months for full-thickness tissue loss and tight joint contracture, respectively. At an average follow-up of 12 months, all patients had full range of motion and no physical limitation. The rate of children injured by exercise equipment is expected to increase. Friction burns to the hands remain a concern, although early recognition and appropriate management are associated with excellent functional outcomes. Protective modification of exercise machines seems to be the best approach to eliminating these injuries.

Accidents, Home↗