A double-blinded randomised controlled study to investigate the effect of intraperitoneal levobupivacaine on post laparoscopic pain

BACKGROUND

Laparoscopic surgery is the cornerstone of modern gynaecological surgery, with shorter hospital stays and a quicker return to normal activities. However postoperative pain remains problematic. No strategy to reduce phrenic nerve irritation, including heating or humidifying the insufflating gas, alternatives to CO₂, and intraperitoneal analgesics, has shown superiority.

METHODS

100 women undergoing laparoscopic surgery were randomly allocated, having either 40ml of 0.25% levobupivacaine or 40ml 0.9% sodium chloride solution administered into the peritoneal cavity following surgery. The patients and the main researcher were blinded. All women received standardised anaesthetic and laparoscopic technique, and postoperative pain control including nursing position and nature of analgesia. Postoperative pain was assessed 3 hours, 8 hours, day 1 and day 4/5 postoperatively.

RESULTS

100 patients were recruited undergoing surgery for benign causes aged 19-73(mean 40.3±13). There was no difference between the groups for age(p=0.64) or length of operation(p=0.56). There were no adverse events related to use of intraperitoneal instillation. There was a significant reduction in shoulder-tip pain scores in the levobupivacaine group at 3 hours(p=0.04). Furthermore, there was a significant reduction in wound-pain scores in the levobupivacaine group at 8hrs(p=0.04) and at day 4(p=0.04). No difference was found in pelvic pain between the two groups. No significant difference was found in the use of post-operative analgesia.

CONCLUSIONS

Intraperitoneal instillation of 40ml of levobupivacaine has some benefit in reducing postoperative pain and need for analgesia in the initial hours following gynaecological surgery. However, further well-designed randomised control trials are required to decide the optimum route and concentration of administering local anaesthetic.

Implementation of an in-patient pediatric mortality reduction intervention, Gondar University Hospital, Ethiopia

SETTING

Gondar University Hospital (GUH) is a resource-limited tertiary care hospital in northern Ethiopia.

OBJECTIVE

To evaluate the aggregate effect of care standardization, institutional guidelines, and simulation-based training on pediatric mortality at a resource-limited hospital.

DESIGN

Uncontrolled pre-post study. GUH in-patients aged from 30 days to 14 years were included in the program evaluation (baseline 11 September-18 November 2010; intervention 19 September-9 December 2011). Interns attached to the GUH pediatrics department from 6 September to 9 December 2011 were included in the training evaluation. Institution-specific management guidelines were prepared for choking, respiratory distress, dehydration, sepsis, congestive heart failure, coma, and seizure. Approval for the protocols was obtained from each pediatric faculty member. Interns received a 3.5 h simulation-based training in triage, procedural skills, and protocol usage. Primary outcome was overall deaths (%); secondary outcomes were deaths within 24 h of admission (%) and median pre/post-training emergency management test scores (%).

RESULTS

No difference in mortality (OR 0.72, 95%CI 0.40-1.29, P = 0.265) or first 24 h mortality (crude OR 0.97, 95%CI 0.37-2.55) was observed. Trainee examination scores improved from 33% to 74% (P < 0.001).

CONCLUSION

Combining care standardization, management protocols, and simulation-based training did not reduce mortality among pediatric in-patients. Focused, simulation-based training improved short-term test scores among interns.

The effect of seeking consent on the representativeness of patient cohorts: iron-deficiency anaemia and colorectal cancer

AIM

The study aimed to establish the level of selection bias that may occur should individual patient consent be sought, by comparing characteristics of consenters and nonconsenters to a request for access to medical records within a cohort of patients diagnosed with iron-deficiency anaemia (IDA).

METHOD

A cohort study and cross-sectional survey was carried out of consent preferences that compared the sociodemographic characteristics of patients providing or not providing consent for access to their records, the consent rates by participant subgroup and the predictors of consent/nonconsent.

RESULTS

Of 599 patients mailed requesting consent for access to their medical records, 425 (71.0%) responses were received. Of the valid responses, explicit consent was granted by 371 (62.7%) respondents, with 47 (7.9%) refusals. The characteristics of consenters and nonconsenters differed with regard to age, gender and deprivation quartile. Nonconsent was associated with younger age (40-60 years vs 60 + years; bivariate OR = 2.84; 95% CI = 2.01-4.02), female gender (OR = 1.62; 95% CI = 1.13-2.34) and being socioeconomically deprived (OR = 1.61; 95% CI = 1.15-2.26).

CONCLUSION

The current research governance framework demonstrates a conflict between protecting the rights of the individual and the development of a sound research base to improve the delivery of healthcare services for society as a whole. If epidemiological research includes data only from individuals who have given consent for access to their records, the resulting selection bias may have consequences for the scientific validity and generalizability of research findings, and ultimately the quality of patient care.

Pandemic influenza A (H1N1) 2009 in a critical care and theatre setting: beliefs and attitudes towards staff vaccination

West Midlands was particularly affected by the 2009 H1N1 influenza A (pH1N1) pandemic. Vaccination of frontline healthcare professionals (HCPs) aimed to prevent spread to vulnerable patients, minimise service disruption and protect staff. HCPs involved in upper airway management are particularly at risk of aerosol exposure. We assessed the attitudes of these HCPs towards pandemic influenza A (H1N1) 2009 vaccination uptake: primary reasons for acceptance, barriers to vaccination, and knowledge surrounding pH1N1 influenza. We performed a voluntary, anonymous questionnaire survey based in two West Midlands National Health Service Trusts, one month after introduction of the vaccine. In all, 187 useable responses were received (60.5% response rate); 43.8% (N=82) had/intended to receive vaccination. Concern over long term side-effects was the main deterrent (37.4%, N=70). Primary reasons for potentially accepting vaccination were: to protect themselves (36.9%, N=69), to protect family (35.3%, N=66), and to protect patients (10.2%, N=19). Of responders, 76.5% were unsure that the vaccines had undergone suitably rigorous clinical trials to ensure safety; 20.9% correctly identified reported vaccine efficacy. We conclude that pH1N1 vaccination uptake among high risk HCPs remained low, although twice that of peak seasonal influenza vaccination rates. HCPs' knowledge of vaccine efficacy is poor. Barriers to vaccination include concerns over safety profile given the short chronological time-span between the pandemic being declared and vaccine introduction. Side-effects, both acute and chronic, are a significant barrier to vaccination. Further reassurance/education surrounding vaccine safety/efficacy at the time of any future pandemic may improve uptake rates.

Healthcare workers' perceptions of the duty to work during an influenza pandemic

Healthcare workers (HCWs) are often assumed to have a duty to work, even if faced with personal risk. This is particularly so for professionals (doctors and nurses). However, the health service also depends on non-professionals, such as porters, cooks and cleaners. The duty to work is currently under scrutiny because of the ongoing challenge of responding to pandemic influenza, where an effective response depends on most uninfected HCWs continuing to work, despite personal risk. This paper reports findings of a survey of HCWs (n = 1032) conducted across three National Health Service trusts in the West Midlands, UK, to establish whether HCWs' likelihood of working during a pandemic is associated with views about the duty to work. The sense that HCWs felt that they had a duty to work despite personal risk emerged strongly regardless of professional status. Besides a strong sense that everyone should pull together, all kinds of HCWs recognised a duty to work even in difficult circumstances, which correlated strongly with their stated likelihood of working. This suggests that HCWs' decisions about whether or not they are prepared to work during a pandemic are closely linked to their sense of duty. However, respondents' sense of the duty to work may conflict with their sense of duty to family, as well as other factors such as a perceived lack of reciprocity from their employers. Interestingly, nearly 25% of doctors did not consider that they had a duty to work where doing so would pose risks to themselves or their families.

Medical students' attitudes towards abortion: a UK study

BACKGROUND

There is little research into medical students' or doctors' attitudes to abortion, yet knowing this is important, as policy makers should be aware of the views held by professionals directly involved in abortion provision and changing views may have practical implications for the provision of abortion in the future.

METHODS

We surveyed 300 medical students about their views on abortion, their beliefs about the status of the fetus and the rights of the mother, their attitude towards UK law and their willingness to be involved in abortion provision as qualified doctors.

RESULTS

62% of medical students were pro-choice, 33% pro-life and 7% undecided. Students' views correlated with gender, year of study and holding a religious belief. Their beliefs about abortion, the status of the fetus and the rights of women significantly correlated with their attitudes towards the UK law and their willingness to be involved in abortion provision. Students' willingness to be involved in abortion provision was related to their views on abortion, the extent of participation required, the circumstances of the pregnancy and the stage of pregnancy.

CONCLUSIONS

The percentage of pro-choice students was lower than that found in research on general practitioners' attitudes to abortion. It is unclear whether this is because students become more pro-choice as they progress through their medical career or because there is genuinely a change in attitudes to abortion.

Medical education and patients' responsibilities: back to the future?

Medical student learning is dependent on an unwritten agreement between patients and the medical profession, in which students "practise" upon real patients in order that, when they are doctors, those same patients will benefit from the doctors' skills. Given the increasing propensity for patients to refuse to take part in such learning, there is a danger that doctors will qualify without being truly competent. As patients, we must all ask ourselves, when asked to take part in medical teaching: if this student/trainee doesn't learn now, on me and under supervision, how will the person be truly competent next time, when this is for real, and the patient might be me or my loved one? We argue that a new and more explicit agreement is needed, in which the default should be that all patients are willing to help in the education of medical students, while we ensure that all such students are already competent in simulation before first practising upon real patients.

Confidentiality and the ethics of medical ethics

In this paper we consider the use of cases in medical ethics research and teaching. To date, there has been little discussion about the consent or confidentiality requirements that ought to govern the use of cases in these areas. This is in marked contrast to the requirements for consent to publish cases in clinical journals, or to use personal information in research. There are a number of reasons why it might be difficult to obtain consent to use cases in ethics. Many cases concern people who are incompetent, and thus unable to give consent. Often the material is of a sensitive nature, it is not clear who should give consent, or the ethicist has no access to those involved. We argue that the use of cases in ethics research and teaching can be justified by appeal to the public interest argument, and suggest a number of areas for discussion and clarification.

Modified mandated choice for organ procurement

Presumed consent to organ donation looks increasingly unlikely to be a palatable option for increasing organ procurement in the UK following the publication of the report into events at Alder Hey and elsewhere. Yet, given that the alternative to increasing the number of cadaveric organs available is either to accept a greater number of live donations, or accept that people will continue to die for the want of an organ, public policy makers remain obliged to consider other means of increasing the procurement rate. In this paper, we meet the main objections to mandated choice (namely that it undermines autonomy and that mandated donation is preferable). We have modified the traditional approach to mandated choice to take into account the force of the objection that mandated donation is preferable, by accepting that people can and do make bad decisions about organ donation and proposing that all accompanying public education and information about cadaveric donation should be directed in favour of donation.

Ethical aspects of withdrawing/withholding renal replacement therapies on patients in acute renal failure in an intensive care unit

The majority of patients being treated for acute renal failure in intensive care units have multiple medical problems. Accordingly, the withdrawal of renal replacement therapies should be considered as part of a general decision about whether to initiate or continue with treatment per se. Several guidelines on withdrawing and withholding therapy have been produced and some common themes emerge: concerns to avoid euthanasia, potential for benefit, patient consent (shared decision-making), team consensus/decision-making, and the provision of appropriate palliative care and resource implications. Each of these is considered in turn, although the word limit for this paper does not permit detailed exposition.

Anorexia nervosa and respecting a refusal of life-prolonging therapy: a limited justification

People who suffer from eating disorders often have to be treated against their will, perhaps by being detained, perhaps by being forced to eat. In this paper it is argued that whilst forcing compliance is generally acceptable, there may be circumstances under which a sufferer's refusal of consent to treatment should be respected. This argument will hinge upon whether someone in the grip of an eating disorder can actually make competent decisions about their quality of life. If so, then the decision to refuse therapy may be on a par with other decisions to refuse life-prolonging therapy made by sufferers of debilitating chronic, or acute onset terminal illness. In such cases, palliation might justifiably replace aggressive therapy. The argument will also draw heavily on the distinction between competent refusal of therapy and passive euthanasia, and the distinction between incompetence and irrational decisions. Both distinctions will then be applied to decisions to refuse food. The extent to which sufferers from anorexia nervosa can be categorised as either incompetent or irrational will be examined. It against this background that it will be argued that at least some of those who suffer from eating disorders should have their refusals respected, even if they may die as a result.

Ignorance is bliss? HIV and moral duties and legal duties to forewarn

In 1997, a court in Cyprus jailed Pavlos Georgiou for fifteen months for knowingly infecting a British woman, Janet Pink, with HIV-1 through unprotected sexual intercourse. Pink met Georgiou in January 1994 whilst on holiday. She discovered that she had contracted the virus from him in October 1994 but continued the relationship until July 1996 when she developed AIDS. She returned to the UK for treatment and reported Georgiou to the Cypriot authorities. There have been a number of legal cases involving deliberate transmission of HIV, but most have involved forced exposure to infected bodily fluids for example, rape or biting, and have been dealt with using the existing legislation for rape or assault. While it is often difficult to prove responsibility for transmission in cases of forced exposure to HIV, it is even more contentious in cases like those of Janet Pink where an individual has consented to sex but claims that he/she was not forewarned of his/her partner's HIV-positive status. At present there is no specific criminal offence of having unprotected sexual intercourse without disclosing one's HIV-positive status but a prosecution could possibly be brought under any one of a number of existing offences. Perhaps a change of policy needs to be considered. The Home Office has issued a consultation document which outlines a proposal that will allow the criminalization of intentional transmission of diseases, like HIV, that are likely to cause serious harm. This revised legislation would cover all other potentially fatal diseases (including salmonella and legionnaire's disease, for instance) but seems primarily to be targeted at HIV transmission. Should transmission of HIV through consensual sex, without the HIV-positive status of the individual being disclosed, be an offence? This question, and that of whether there is a moral obligation to disclose a positive HIV status prior to having a sexual relationship is the subject of this paper.

Beware! Preimplantation genetic diagnosis may solve some old problems but it also raises new ones

Preimplantation genetic diagnosis (PIGD) goes some way to meeting the clinical, psychological and ethical problems of antenatal testing. We should guard, however, against the assumption that PIGD is the answer to all our problems. It also presents some new problems and leaves some old problems untouched. This paper will provide an overview of how PIGD meets some of the old problems but will concentrate on two new challenges for ethics (and, indeed, law). First we look at whether we should always suppose that it is wrong for a clinician to implant a genetically abnormal zygote. The second concern is particularly important in the UK. The Human Fertilisation and Embryology Act (1990) gives clinicians a statutory obligation to consider the interests of the future children they help to create using in vitro fertilisation (IVF) techniques. Does this mean that because PIGD is based on IVF techniques the balance of power for determining the best interests of the future child shifts from the mother to the clinician?

Women, forced caesareans and antenatal responsibilities

In the UK in October 1992, Mrs S was forced to have a caesarean section despite her objections to such a procedure on religious grounds. The case once again called into question the obligations of women to the unborn, and also whether one person can be forced to undergo a medical procedure for the benefit of someone else. Re S, like the case of Angela Carder, is often discussed in terms of the conflict between maternal and fetal rights. This paper looks instead at our obligations to save life in general-whether or not we are pregnant- and at the obligations of mothers to their children-whether they are born or unborn. Drawing on Judith Jarvis Thomson's distinction, it argues that minimal decency informs the duties which are owed to strangers, but that parents can be expected to behave as Good Samaritans towards their children. Finally, it is argued that even if mothers are ethically obliged to consent to caesarean sections which will save the lives of their babies, this does not necessarily mean that others are at liberty, or even obliged, to proceed with such operations without their consent.

Plasma lipids, lipoproteins, and mammographic densities

There is strong evidence that the risk of breast cancer in populations is influenced by environmental factors. Plasma lipids and lipoproteins are known to be under environmental control and to have epidemiological and/or biological characteristics that suggest they may be relevant to breast cancer risk. The purpose of the study described here was to determine whether plasma lipids, lipoproteins, and the urinary excretion of the mutagen malondialdehyde (MDA) are associated with differences in breast cancer risk. We measured plasma lipids, lipoproteins, and urinary MDA in women without breast cancer but with different degrees of density of the breast parenchyma on mammography, a strong risk factor for breast cancer. Mammograms from 273 premenopausal women were digitized to high spatial resolution by a scanning densitometer, and images were analyzed to quantify the extent of density. The percentage of the breast occupied by mammographic densities was found, after controlling for the effects of age and the Quetelet index of obesity, to be significantly associated with plasma levels of high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglyceride, apoprotein B, and urinary excretion of MDA. A multivariate model comprised of the Quetelet index of obesity, alcohol consumption, apoprotein B, parity, daily MDA excretion, and the skinfold thickness sum accounted for 36% of the variation in breast density. These results suggest that differences in lipid metabolism are associated with differences in breast cancer risk as defined by mammographic densities. These findings are consistent with several other observations that show a relationship between plasma lipids, lipoproteins, and risk factors for breast cancer.

Pedigree analysis of sucrose intolerance among Native Alaskans

Sucrose intolerance, the inability to digest sugar, has been found to be unusually frequent among North Alaskan Inupiat. It is conjectured that this rare hereditary condition reached elevated levels due in part to the small, rather isolated population structure characterizing traditional Inupiat settlement patterns. An additional factor was likely to be a form of "selection relaxation" in which sucrose intolerance was not selected against during precontact times when the Inupiat diet consisted primarily of animal foods. An attempt was made to trace genealogical connections between pedigree containing cases of sucrose intolerance. This proved to be mostly unsuccessful due to insufficient information. It calls for researchers to make exerted efforts to obtain pertinent family history data along with extended pedigree records. Sucrose intolerance, while affecting relatively few persons, can lead to health problems, particularly if there is limited dietary choice. This is likely to be the situation among North Alaskan populations where sugar has become a major constituent in their acculturated diet.