Publications by authors named "Lee M Morris"

Background: Over 100,000 sleeve gastrectomy procedures are performed annually in the USA. Despite technological advances, postoperative bleeding and gastric staple line leak are complications of this procedure. We analyzed patient-specific and perioperative factors to determine their association with these complications.

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Article Synopsis
  • Primary laparoscopic hiatal repair with fundoplication often has a high recurrence rate, leading researchers to compare the effects of using onlay-mesh during surgery versus primary repair without mesh.
  • A study analyzed data from 505 patients, showing no significant differences in 30-day outcomes, long-term symptoms, or patient satisfaction between those who received mesh and those who did not.
  • The findings suggest that using onlay-mesh in this surgical procedure is safe and yields similar outcomes to traditional repair methods.
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Nitric oxide synthase 3 (NOS3) produces nitric oxide (NO) in endothelial cells, which stimulates cyclic guanosine monophosphate (cGMP) production and thereby mediates pulmonary vasodilation. Inhibition of cGMP enzymatic cleavage by sildenafil might be involved in lung growth stimulating processes in pulmonary hypoplasia. The aim of this study was to discover insights into the transcriptional regulation of NOS3 in a mouse model of compensatory lung growth (CLG).

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A 60-year-old woman with a massive left intra-thoracic lipoma presented with worsening dyspnea. A computed tomographic scan revealed an 18 x 10 x 24 cm intra-thoracic mass, which was compressing the left lung and shifting the mediastinum to the right. At operative resection, a large, well-encapsulated, intrathoracic lipoma was discovered that weighed 2,556 grams.

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Background/purpose: Our previous work in a human-fetal trachea xenograft model suggests potential benefits of treating cystic fibrosis in utero. The target for postnatal gene therapy in cystic fibrosis is tracheal submucosal glands (SMGs). The aim of this study was to determine if SMG development in our model recapitulates normal trachea development and its validity for studying fetal gene transfer.

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Bone marrow (BM)-derived endothelial progenitor cells (EPCs) are known to play an important role in neovascularization and wound healing. We investigated the temporal effects of cutaneous wounding on EPC surface markers within the peripheral blood and BM, and to better understand the role of the stromal cell-derived factor-1 alpha (SDF-1alpha/CXCR4) axis on EPC mobilization after wounding. FVB/NJ mice were administered bilateral 8 mm circular full-thickness skin wounds.

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Congenital high airway obstruction syndrome (CHAOS) is a life-threatening condition characterized by complete blockage of the fetal airways associated with hydrops. We present a case of CHAOS due to the rare cause of complete tracheal agenesis. The ex utero intrapartum therapy (EXIT) strategy was employed to allow for neck and mediastinal exploration.

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The ex utero intrapartum treatment (EXIT) procedure has become an important management option in cases of fetal airway obstruction. Select cases of severe micrognathia may be candidates for EXIT-to-Airway due to high-risk of airway obstruction at birth. Here we present three successful EXIT-to-Airway procedures for the management of congenital micrognathia in its most severe manifestations.

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Venous leg ulcers are a prevalent nonhealing wound of the lower extremity. Although topically applied growth factors successfully improve wound repair in animal studies, similar studies on humans with venous leg ulcers have not been successful. This study was designed to evaluate the acute safety and biologic feasibility of peri-ulcer injection of a replication-incompetent adenoviral construct expressing platelet-derived growth factor-beta (PDGF-beta).

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Background/purpose: Anecdotal reports suggest that maternal steroids may arrest the growth of congenital pulmonary airway malformations (CPAMs), preventing or reversing hydrops. We reviewed our experience with CPAMs to determine the fetal response to steroid therapy.

Methods: This study is a retrospective review of all fetal CPAMs from 2004 to 2008.

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Article Synopsis
  • - This case report discusses tuberculous peritonitis (TB), which is challenging to diagnose.
  • - TB in organs outside the lungs is often linked to weakened immune systems, like those seen in HIV patients.
  • - The preferred treatment is medication, and if diagnosed early, surgery is generally unnecessary.
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