Emulating an RCT in observational research in chest trauma: The target trial approach.

Background: While the concept of a "target trial"-optimizing the quality of observational studies by attempting to emulate the ideal world conditions of a randomized controlled trial-was first expounded over a decade ago, the take up of this concept in the design and analysis of trials in trauma is lacking. The target trial approach avoids common errors in observational research to increase its scientific validity as well as potentially enable causal questions to be answered without the expense and intricacies of a randomized controlled trial. This review article briefly introduces the reader to the concepts and utility of a "target trial" approach before providing demonstrations of its application in the subject area of chest trauma.

The Modified Lateral Intercostal Artery Perforator Flap.

Background: The main surgical options for treatment of breast cancer are breast-conserving surgery and mastectomy. BCS aims to achieve complete excision of the tumor while achieving a pleasing cosmetic result. Excision of tumors in the lateral aspect of the breast has been associated with issues such as contour deformities and asymmetry.

Diagnostic laparoscopy in penetrating abdominal trauma.

Background: Penetrating abdominal trauma is uncommon in Australia. There are multiple potential approaches to the patient without an indication for immediate laparotomy. This study examined the management of patients with a penetrating anterior abdominal injury in a Level 1 trauma centre, and in particular investigated the outcomes of those patients who underwent diagnostic laparoscopy.

Neoadjuvant systemic therapy for breast cancer: the Westmead experience.

Background: Neoadjuvant systemic therapy (NAST) can be used to treat breast cancer. Pathologic complete response (pCR) is a surrogate marker for improved survival. This study examined response in the breast and axilla to NAST and identified features associated with pCR.