Prophylactic Wound Drainage in Renal Transplant: A Survey of Practice Patterns in Australia and New Zealand.

OBJECTIVES: Drains are used routinely in many centers at the conclusion of kidney transplant, despite a paucity of evidence to guide practice in kidney transplant. Studies have not shown benefit from prophylactic drain placement following other major abdominal and vascular operations, and usage is consequently declining. Our aim was to understand practice patterns and rationale for behavior in drain placement and management in kidney transplant. MATERIALS AND METHODS: We conducted an online survey of surgeons who routinely perform kidney transplants across Australia and New Zealand. RESULTS: The response rate was 66% (43/66). Of respondents, 61% reported routine drain insertion, whereas 21% seldom inserted drains. Concerns about bleeding and anticoagulation (63%) and routine practice (58%) were the dominant reasons for drain insertion. The factors selected as most significant in determining drain removal were both volume and time (44%) and volume alone (33%). A volume of < 50 mL/day (51%) was the most commonly reported threshold for removal. The postoperative period of days 3 to 5 was the most commonly selected time point for drain removal (63%). Seventy-four percent of respondents would consider enrolling their patients in a randomized controlled trial to determine the benefits and harms of drain insertion. CONCLUSIONS: Although drain insertion is a common practice, transplant surgeons in Australia and New Zealand reported sufficient uncertainty concerning the potential benefits and harms to warrant design and conduct of a randomized controlled trial.

Of mice and monkeys: can animal models be utilized to study neurological consequences of pediatric HIV-1 infection?

Pediatric human immunodeficiency virus (HIV-1) infection remains a global health crisis. Children are much more susceptible to HIV-1 neurological impairments than adults, which can be exacerbated by coinfections. Neurological characteristics of pediatric HIV-1 infection suggest dysfunction in the frontal cortex as well as the hippocampus; limited MRI data indicate global cerebral atrophy, and pathological data suggest accelerated neuronal apoptosis in the cortex. An obstacle to pediatric HIV-1 research is a human representative model system. Host-species specificity of HIV-1 limits the ability to model neurological consequences of pediatric HIV-1 infection in animals. Several models have been proposed including neonatal intracranial injections of HIV-1 viral proteins in rats and perinatal simian immunodeficiency virus (SIV) infection of infant macaques. Nonhuman primate models recapitulate the complexity of pediatric HIV-1 neuropathogenesis while rodent models are able to elucidate the role specific viral proteins exert on neurodevelopment. Nonhuman primate models show similar behavioral and neuropathological characteristics to pediatric HIV-1 infection and offer a stage to investigate early viral mechanisms, latency reservoirs, and therapeutic interventions. Here we review the relative strengths and limitations of pediatric HIV-1 model systems.