Monitoring death and cancer in children born to HIV-infected women in England and Wales: use of HIV surveillance and national routine data

There may be long-term adverse health effects of in-utero antiretroviral therapy exposure. Data on children reported through national HIV surveillance were linked to routinely collected cancer and death data: a process known as "flagging". Ninety-five per cent (2612) of reported children born in 2001-2004 in England or Wales who were uninfected or of indeterminate infection status were flagged. By the end of 2005, no cancers and 14 deaths (three uninfected and 11 indeterminate) had been notified.     

Severe tibial bone loss in revision total knee replacement managed with structural femoral head allograft: A prospective case series from the Royal London Hospital

Large tibial bone defects may cause problems at the time of revision total knee replacement. We report on 15 patients (15 knees) followed at a mean of 5.4 years (33–115 months) who underwent revision total knee replacement for severe tibial bone loss using shaped femoral head allograft and Freeman–Samuelson revision components (Zimmer, Winterthur, Switzerland). The mean American Knee Society Score pre-operatively was 22.7 points (0–45) increasing to a mean of 77.2 points (15–95) after operation. The survivorship for the series at 6 years was seven out of nine knees. One patient required an above knee amputation at 3.5 years, whilst another underwent a second revision TKR procedure at 3.4 years. Thirteen knees did not require further surgery and showed a mean time for allograft incorporation of 1.9 years (12–36 months) with no component migration.Severe tibial bone loss at the time of revision TKR surgery is a difficult problem to treat. Our case series demonstrates that when shaped femoral heads are used as structural allograft along with long stemmed components a successful result can be achieved.     

The surgical management of stage I and stage II lung cancer

There have been recent advances in the treatment of non-small cell lung cancer (NSCLC). Surgical resection remains the cornerstone in the treatment of patients with stages I and II NSCLC. Anatomic lobectomy combined with hilar and mediastinal lymphadenectomy constitutes the oncologic basis of surgical resection. The surgical data favor video-assisted thoracic surgery (VATS) lobectomy over open lobectomy and have established VATS lobectomy as a gold standard in the surgical resection of early-stage NSCLC. However, the role of sublobar pulmonary resection, either anatomic segmentectomy or nonanatomic wedge resection, in patients with subcentimeter nodules may become important.     

Methodological considerations for end-of-life research in patients with chronic kidney disease

Good quality information is lacking about how patients die. This is particularly true for chronic kidney disease (CKD) patients who have extensive and unique end-of-life care considerations and needs. Research specific to CKD is required to develop systematic and comprehensive information on the end-of-life care needs and the quality of end-of-life care for patients with CKD, to describe the effectiveness of existing end-of-life care strategies in CKD (including cost-effectiveness), to identify areas that should be priorities for improvement and ultimately to develop innovative strategies for improving the end-of-life care for patients dying with CKD. This paper will highlight the challenges and limitations of the current approaches to end-of-life care research and will outline what is required, both in content and methodology, to move the field of renal palliative care forward.     

"I will do it if it will help others:" motivations among patients taking part in qualitative studies in palliative care

The aim of this study was to explore patients' and carers' preferences and expectations regarding their contribution to research in palliative care through the use of qualitative interviews. Data were collected in the context of two studies exploring the experiences of care of palliative care patients and carers. Both studies recorded the recruitment process, numbers of patients or carers accepting and declining, and the circumstances of interviews. Participants were asked about their motivation to participate in research. The data were analyzed by labeling patients' reflections on their motivations for participating in these studies and identifying themes. Analysis of the recruitment process revealed differential patterns in decline and acceptance of interviews by patients with different conditions and across settings. Among cancer patients, 21/51 declined; the proportion with other conditions that declined was small, and was 0/10 for patients with motor neuron disease. Motivation to participate in the studies was related to (1) altruism, (2) gratitude and concerns about care, (3) the need to have somebody to talk to, and (4) the need for information or access to services. Palliative care patients and carers were capable of deciding whether to participate in interviews and negotiating how they wanted this to happen. This strengthens the argument for patients' autonomy in deciding whether to participate in research. Patients and carers have different motivations for participation, reflecting the heterogeneity of the palliative care population. This suggests a need for ethics committees to reconsider their views and widen their perspectives on the involvement of palliative care patients and carers in research.     

Potassium-titanyl-phosphate laser assisted robotic partial nephrectomy in a porcine model: can robotic assistance optimize the power needed for effective cutting and hemostasis?

A potassium-titanyl-phosphate (KTP) laser through robotic endo-wrist instrument has been evaluated as an ablative and hemostatic tool in robotic assisted laparoscopic partial nephrectomy (RALPN). Ten RALPN were performed in five domestic female pigs. The partial nephrectomies were performed with bulldog clamping of the pedicle. Flexible glass fiber carrying 532-nm green light laser was used through a robotic endowrist instrument in two cases. Power usage from 4 to 10 W was tested. The laser probe was explored both as a cutting knife and for hemostasis. The pelvicalyceal system was closed with a running suture. Partial nephrectomies using KTP laser were performed without complications. Mean operative times and warm ischemia times for laser cases were 96 and 18 min, respectively. Mean estimated blood loss was 60 ml compared with 50 ml for non-laser cases. Complete hemostasis with the laser alone could be achieved with a power of 4 W and was found to be effective. In our hands the laser fiber powered up to 10 W was not effective as a quick cutting agent. Histopathologic analysis of the renal remnant revealed a cauterized surface effect with average laser penetration depth less than 1 mm and minimal surrounding cellular injury. The new robotic endowrist instrument carrying flexible glass fiber transmitting 532-nm green light laser is a useful addition to the armamentarium of the robotic urologic setup. Its control by the console surgeon enables quicker and more complete hemostasis of the cut surface in renal sparing surgery using a porcine model. Histologically proven lased depth of less than 1 mm suggests minimal parenchyma damage in an acute setting. Laser application as a cutting agent, however, requires further investigation with interval power settings beyond the limits of this preliminary study. We estimate that effective cutting should be possible with a setting lower than traditionally recommended for solid organs.