Aerobic and resistance training improves mood state among adults living with HIV

The purpose of this investigation was to examine the effects of combined aerobic and resistance exercise training among self-reported mood disturbances, perceived stress, frequency of self-reported symptoms, and symptom distress in a sample of HIV+ adults. For this purpose, 49 participants were randomly assigned into an exercise (EX) or control (CON) group. Those in the EX group completed 50 min of supervised aerobic and resistance training at a moderate intensity twice a week for 6 weeks. The CON group reported to the university and engaged in sedentary activities. Data were collected at baseline before randomization and 6 weeks post intervention. Measures included the symptom distress scale (SDS), perceived stress scale (PSS), profile of mood states (POMS) total score, and the POMS sub-scale for depression and fatigue. A 2 way ANOVA was used to compare between and within group interactions. The EX group showed a significant decrease in reported depression scores (p=0.03) and total POMS (p=0.003). The CON group reported no change in POMS or SDS, but showed a significant increase in PSS. These findings indicate that combination aerobic and resistance training completed at a moderate intensity at least twice a week provides additional psychological benefits independent of disease status and related symptoms.

Gastric adenocarcinoma and proximal polyposis of the stomach (GAPPS): a new autosomal dominant syndrome

OBJECTIVE

The purpose of this study was the clinical and pathological characterisation of a new autosomal dominant gastric polyposis syndrome, gastric adenocarcinoma and proximal polyposis of the stomach (GAPPS).

METHODS

Case series were examined, documenting GAPPS in three families from Australia, the USA and Canada. The affected families were identified through referral to centralised clinical genetics centres.

RESULTS

The report identifies the clinical and pathological features of this syndrome, including the predominant dysplastic fundic gland polyp histology, the exclusive involvement of the gastric body and fundus, the apparent inverse association with current Helicobacter pylori infection and the autosomal dominant mode of inheritance.

CONCLUSIONS

GAPPS is a unique gastric polyposis syndrome with a significant risk of gastric adenocarcinoma. It is characterised by the autosomal dominant transmission of fundic gland polyposis, including areas of dysplasia or intestinal-type gastric adenocarcinoma, restricted to the proximal stomach, and with no evidence of colorectal or duodenal polyposis or other heritable gastrointestinal cancer syndromes.

Physical activity and immunity in HIV-infected individuals

The purpose of this study was to determine what relationship exists among physical activity levels and viral load and CD4+ cell count in HIV-infected individuals. Increased viral load is associated with disease progression and symptom severity. A convenience sample of 66 male and female subjects between the ages of 18 and 64 years of age (mean 39 +/- 8) was recruited from a hospital-based HIV/AIDS clinic. Components of PA were assessed for three continuous days using a mini-motion logger wrist actigraph. These components included mean PA level, and PA index and acceleration index. Pearson's correlational analysis was used to test the strength of association between PA components and viral load or CD4+ cell count. A significant inverse relationship was found between mean PA level and viral load (p=0.047). An inverse relationship was also observed between PA index and viral load (p=0.0061). Neither mean PA nor PA index scores correlated with CD4+ cell counts. Acceleration index, a measure of PA intensity, showed no correlation to viral load or CD4+ cell counts. These findings suggest that increasing levels of physical activity might have beneficial effects on viral load in HIV-infected individuals.

Perceived stress in HIV-infected individuals: physiological and psychological correlates

The purpose of this study was to determine the correlation of perceived stress with selected physiological and psychological factors in an HIV-infected, predominantly African American population and to assess the multivariable effects on perceived stress. The variables that correlated significantly with perceived stress were entered into a backward stepwise regression model. Pearson's r analysis showed significant correlations between perceived stress and state and trait anxiety, depression, HIV-related symptoms, sleep quality, daytime sleepiness and fatigue. State and trait anxiety, depression and fatigue retained significance (p<0.1) in the final regression model. These factors explained approximately 80% of the variance in perceived stress. The significant interactions of multiple physiological and psychological correlates suggest that perceived stress is a complex outcome with a multifactorial etiology. Further, the model suggests that psychological factors may contribute to perceived stress in this population more than physiological factors such as HIV-related symptomatology or stage of disease.

Counteracting muscle wasting in HIV-infected individuals

HIV-infected persons often experience a loss of lean tissue mass, which includes decreases in skeletal muscle mass. This HIV-associated wasting is significant because it has been associated with accelerated disease progression and increased morbidity. Signalling related to several circulating molecules, including tumour necrosis factor (TNF)-alpha, growth hormone, insulin-like growth factor (IGF)-1 and testosterone, has been associated with the aetiology of muscle wasting. Additionally, nutritional status related to malnutrition and specific dietary deficiencies may be involved. In an attempt to counter muscle wasting in HIV-infected persons, treatments have been suggested that target these mechanisms. Nutritional supplementation, cytokine reduction, hormone therapy and resistance exercise training are potential treatments for this condition. Resistance exercise training, which is more easily accessible to this population than other treatments, holds promise in counteracting the process of HIV wasting, as it has been successfully used to increase lean tissue mass in healthy and clinical populations. This review will explore the HIV/AIDS muscle-wasting syndrome, its aetiology, and the treatments used to counteract wasting.

Social service and case management needs of HIV-infected persons upon release from prison/jail

This study sought to identify social service needs of HIV-infected persons at the time of release from prison/jail and to describe their case management experiences after release from prison/jail. Sixteen men and women who were infected with HIV, each with a history of incarceration, participated in one of three focus group sessions. Study participants consisted of 11 men and five women. The majority of the participants were African-American (81%), single (50%), and currently unemployed (69%). Qualitative analysis of the focus group transcripts revealed a total of 483 comments regarding a need for social or health services. These comments were further grouped into 13 categories of services or service-related issues that represented the range of the responses. Although participants described positive experiences with specific case managers, their overall evaluation of case management was negative. Identified social services needs and the descriptions of their experiences with case management provides insight as to how case management services can be improved for this population.

Depression in HIV-infected patients: allopathic, complementary, and alternative treatments

OBJECTIVES

The purpose of this review article is to synthesize the current knowledge related to depression and HIV disease.

METHODS

The research literature was critically evaluated for several selected therapies that are prescribed for HIV-infected persons to treat depression. These therapies included pharmacotherapy, psychotherapy, alternative, and complementary therapies.

RESULTS

Several therapies are currently available for the treatment of depression in HIV disease. When prescribing treatments, clinicians should be aware of problems associated with diagnoses, drug-drug interactions, and the benefits of some of the new therapies that are now available. Treatment regimes should be carefully designed to meet the individual needs of the patient and will optimally include a combination of approaches including psychotherapy, pharmacotherapy, education, and/or complementary therapies.

CONCLUSIONS

Although HIV is now a treatable disease, the prevalence of depression in the HIV population remains high and should be continually addressed.

Disclosure of HIV infection: how do women decide to tell?

This descriptive study explores the phenomenon of disclosure of HIV infection by women. Specifically, we examined women's level of disclosure to various groups and how these disclosure decisions are made. The sample consisted of 322 HIV-infected women residing in the southern US. Participants were predominantly African-American, single women of reproductive age with yearly incomes less than $10,000. Data were collected at the first interview of a longitudinal study of reproductive decision making. Findings showed that the majority of the women had disclosed to some sex partners, close family and friends, and health care professionals. However, for a group of women, disclosure of HIV infection is a difficult issue supporting the need for health education and counseling. Qualitative data were analyzed using content analysis and revealed three major categories describing how women make disclosure decisions: full disclosure, criteria for disclosure and emotional disclosure. Quantitative analysis revealed few demographic differences among women in the three disclosure categories. These findings provide insight that can assist those working with HIV-infected women in helping them decide not only to whom they disclose, but how best to disclose.

Adult sickle cell patients' perceptions of nurses' caring behaviors

Sickle cell disease (SCD) is a life-long, acutely painful, chronic illness. This study was conducted to explore differences in perceptions of nurses' caring behaviors between adults with SCD and adults with general medical conditions and the differences in perceptions of nurses' caring behaviors between men with SCD and women with SCD. Watson's (1988) Theory of Human Caring provided the conceptual framework. In this descriptive, correlational design, convenience sampling was used to obtain 29 adults with SCD and 34 adults with other medical conditions. The mean age for adults with SCD was 35.8, and on average they reported four hospitalizations per year. The mean age for the general medical patients was 48.9, and they averaged two hospitalizations per year. Instruments used in this study were a demographic data form and the Caring Behavior Assessment, modified for use in this study. The instruments were distributed through support groups using the snowball technique. Data were analyzed using descriptive statistics and independent t-tests. Participants with SCD reported lower satisfaction with nurses' caring behaviors than those with other medical conditions (t = 2.19, p = .03). Women with SCD reported lower satisfaction with nurses' caring behaviors than men with SCD (t = 2.91, p = .01).

HIV-infected women's experiences and beliefs related to AZT therapy during pregnancy

To explore women's experiences and beliefs concerning zidovudine (AZT) therapy during pregnancy, short-answer and open-ended questions were asked of 322 human immunodeficiency virus (HIV)-infected women at increased risk for pregnancy. Specifically, we examined what women believed they had been told concerning AZT therapy during pregnancy by health care professionals and peers, experiences with taking AZT, how effective they believed AZT therapy to be, and if they would take AZT if they became pregnant. Women in the study were predominately African American (88%), single (79%), with a mean age of 32 years, and had annual incomes less than $10,000 (64%). Although 81.4% of the women had been told to take antiretrovirals, only 69.1% of the women were actually taking HIV-related medicines. Almost three-fourths of the women (70.8%) reported being told that taking AZT during pregnancy would reduce perinatal transmission. Women reported the most frequent reason for their stopping AZT was its side effects. When women who were not presently taking AZT were asked what would make them consider taking it, they most frequently said they would begin AZT if their health deteriorated or based on the advice of health care professionals. A small group of women said nothing would make them take AZT-type medications. More than one-half of the women said they felt AZT was effective in preventing perinatal HIV transmission. However, almost 20% of the women reported believing that their health care provider would not be positive about their taking AZT during pregnancy. Significant relationships were found between intent to take AZT if becoming pregnant and specific AZT-related beliefs and experiences.

Issues of women dually diagnosed with HIV infection and substance use problems in the Carolinas

A growing number of women are being dually diagnosed with HIV infection and substance use problems. Forty-two percent of all women diagnosed with AIDS have been infected through injection drug use. Many more women with HIV are exposed to nonintravenous drugs that potentially affect their quality of life and illness experience. This study sought to identify from the perspective of women factors that most influenced their ability to obtain treatment for their HIV infection and control their substance use. A focus group approach was used for data collection. Twenty-five HIV-infected women participated in one of four focus groups. Women were asked to identify and discuss their concerns and needs related to HIV/AIDS and substance use. Twenty-four women were African-American; one was white. All the women reside in South Carolina or North Carolina. Each focus group session was audiotaped and transcribed. Content analysis, following Krippendorff's (1980) methodology, was used to analyze the data. Five themes emerged: 1) AIDS as a life-altering event; 2) spirituality; 3) mental health issues; 4) barriers to health care services; and 5) environmental influences. It was concluded that the coexistence of HIV and substance abuse adds to the complexity of women's treatment needs. For these women, an HIV diagnosis can serve to alter their lives either positively or negatively. Dually diagnosed women have unique needs that require integration of physical and psychosocial interventions. These women may benefit from the services of psychiatric or mental health nurse practitioners who have the skills necessary to address the many psychosocial issues women face as well as provide physical treatment. Additionally, drug treatment services need to be expanded and made more comprehensive. Drug treatment programs need to be developed specifically for women, and these services need to be made accessible to poor women with substance abuse problems. Further, drug treatment programs need to provide comprehensive services that can appropriately integrate the treatment of HIV disease and substance abuse.

Effects of individualized acupuncture on sleep quality in HIV disease

Although it may begin at any point, sleep disturbance often appears early in HIV disease and contributes to decreased quality of life during the course of the illness. Relatively few studies have explored the complex nature of poor sleep quality in HIV disease or tested interventions to improve sleep quality. The purpose of this study was threefold: explore the nature of sleep quality in HIV disease, test the relationship between pain and sleep quality, and test the effectiveness of acupuncture delivered in a group setting for improving sleep quality in those who are HIV infected. A pretest, posttest, preexperimental design was used to test the effects of acupuncture on sleep quality. Participating in the study were 21 HIV-infected men and women between the ages of 29 and 50 years who reported sleep disturbance three or more times per week and who scored greater than 5 on the Pittsburgh Sleep Quality Index. The Wrist Actigraph was used to measure sleep activity, and the Current Sleep Quality Index was used to measure sleep quality for 2 nights before and after a 5-week acupuncture intervention (10 treatments). Acupuncture was individualized to address insomnia and other symptoms reported by the participants. Sleep activity and sleep quality significantly improved following 5 weeks of individualized acupuncture delivered in a group setting.

Hope and coping in HIV-infected African-American women of reproductive age

African-American women of reproductive age, particularly those living in the southern United States, represent a disproportionate number of women with HIV/AIDS. Often women who become infected with HIV in the South must cope not only with the disease, but with economic stresses and racial stigma, as well. Faced with these changes, these women experience increased distress and loss of hope. The purpose of this study was to examine levels of hope in a group of HIV-infected African-American women and to identify coping strategies that were associated with women maintaining a sense of hope for the future. A descriptive design was used to test the relationships between hope and coping strategies used by HIV-infected African-American women. Reported levels of hope were significantly lower for study participants than for women with breast cancer or for hospitalized adults with cancer who were receiving chemotherapy. Statistically significant positive relationships were observed between hope and the total coping score (r = .37, p = .009) hope and managing the illness (r = .47, p = .001) and between hope and spiritual activities (r = .40, p = .004). A statistically significant negative relationship was observed between hope and avoidance coping (r = -.35, p = .009).

Native and modified LDL activate extracellular signal-regulated kinases in mesangial cells

Glycation and/or oxidation of LDL may promote diabetic nephropathy. The mitogen-activated protein kinase (MAPK) cascade, which includes extracellular signal-regulated protein kinases (ERKs), modulates cell function. Therefore, we examined the effects of LDL on ERK phosphorylation in cultured rat mesangial cells. In cells exposed to 100 microg/ml native LDL or LDL modified by glycation, and/or mild or marked (copper-mediated) oxidation, ERK activation peaked at 5 min. Five minutes of exposure to 10-100 microg/ml native or modified LDL produced a concentration-dependent (up to sevenfold) increase in ERK activity. Also, 10 microg/ml native LDL and mildly modified LDL (glycated and/or mildly oxidized) produced significantly greater ERK activation than that induced by copper-oxidized LDL +/- glycation (P < 0.05). Pretreatment of cells with Src kinase and MAPK kinase inhibitors blocked ERK activation by 50-80% (P < 0.05). Native and mildly modified LDL, which are recognized by the native LDL receptor, induced a transient spike of intracellular calcium. Copper-oxidized (+/- glycation) LDL, recognized by the scavenger receptor, induced a sustained rise in intracellular calcium. The intracellular calcium chelator (EGTA/AM) further increased ERK activation by native and mildly modified LDL (P < 0.05). These findings demonstrate that native and modified LDL activate ERKs 1 and 2, an early mitogenic signal, in mesangial cells and provide evidence for a potential link between modified LDL and the development of glomerular injury in diabetes.

Levels of hope in HIV-infected African-American women of reproductive age

HIV disease continues to grow at a staggering rate among women, with women of color becoming the group most frequently affected. Previous research has supported hope as an important factor associated with better health, quality of life, recovery from illness, and increased survival in life threatening illnesses such as HIV disease. The purpose of this study was to describe levels of hope in HIV-infected, African-American women, and to examine the relationships among hope and the women's reported symptoms, stage of illness, and perceived relationship with her primary health care provider (PHCP). A descriptive, quantitative design was used. The sample consisted of 49 African-American women 18 to 45 years of age. Face-to-face structured interviews were conducted. Hope was measured using the Herth Hope Scale, and the quality of the relationship with one's PHCP was measured using the Relationship with the PHCP Scale. The level of hope in these HIV-infected women was lower than women with breast cancer and hospitalized adults with cancer. No significant differences were found in level of hope related to relationship status, income, stage of illness, or if a woman had or did not have children. Hope was positively associated with a more positive relationship with the PHCP (r = .33, P = .02). This finding underscores the importance of the quality of the PHCP's relationship with their clients.

Health care providers' influence on HIV-infected women's beliefs and intentions related to AZT therapy

This study examined how women's relationship with their primary health care provider (PHP) and their perceptions about how effective their PHPs believe zidovudine (AZT) to be in decreasing perinatal transmission related to women's AZT beliefs and intentions. It used a cross-sectional design to collect data from 59 HIV-infected African American women. Almost half the women (45%) had given birth since HIV diagnosis. Most of the babies born to HIV-infected mothers (87%) were seronegative. Data analysis with Pearson's r indicated that the quality of the women's relationship with their PHP was positively correlated to how important the PHP would be in decision making related to AZT therapy. Significant positive correlation was observed between women's perceptions about how effective their PHPs believed AZT to be in decreasing perinatal HIV transmission and the women's own beliefs about AZT, their intent to take AZT if pregnant, and intent to give AZT to a newborn.

Nursing management of anxiety in HIV infection

Anxiety is a universal problem for individuals with AIDS because the disease creates uncertainty and disruptions in every aspect of their lives. Nurses have a wide variety of holistic interventions to help persons living with AIDS (PLWAs) manage anxiety. Orem's self-care theory of nursing provides a framework for assessing, diagnosing, planning, implementing, and evaluating nursing care for an HIV-infected person experiencing anxiety. This article presents an overview of anxiety, the nature of anxiety in HIV-infected individuals, and psychological, pharmacological, and holistic interventions to assist the client in self-care of anxiety.

Relationships among HIV risk beliefs, attitudes, and behaviors in sexually active, seronegative gay men

Safer-sex guidelines established during the early days of the HIV/AIDS epidemic have undergone very little revision despite some controversy. Although these guidelines have been widely disseminated in the gay community, many gay men continue to engage in behaviors that are believed to put them at high risk for transmission of HIV. This suggests either that they have not accepted safer-sex guidelines as accurate or that other factors override personal implementation of the guidelines. The study examined seronegative gay men's beliefs about the accuracy of safer sex guidelines and the men's participation in behaviors risky for transmitting HIV. The greatest disagreement between the men's beliefs and behaviors centered on the risk of oral intercourse; this suggests a need for clarification of the safer sex message about this behavior. The findings of this study support the need to reformulate safer-sex guidelines. When unprotected oral and anal sex are classified at the same level of risk, those who engage in unprotected oral sex may proceed to unprotected anal sex with less reservation.

Case management at what expense? A case study of the emotional costs of case management

Case management, which has its historical roots in community and public health, seeks to coordinate care, decrease costs, and promote access to appropriate levels of service. The case management system in this case study underscores the potential negative outcomes that can result from ignoring the holistic approach represented by an implemented case management system as a cost control mechanism. These negative outcomes not only include those expenditures of resources usually included when describing costs of care, but include those emotional costs of the system, patient, and care managers. Several needed system changes are identified and recommendations provided.

Restructuring life to face the future: the perspective of men after a positive response to protease inhibitor therapy

This article describes a qualitative study that explores the psychosocial changes and care delivery issues experienced by men with AIDS who were facing end-stage disease but then had dramatic physical improvement as a result of protease inhibitor therapy. In-depth interviews were conducted with 11 men with HIV/AIDS drawn from a community-based AIDS service organization in a large metropolitan area in the Southeast. Using Collaizi's model of content analysis, three broad categories, protease inhibitors as a reprieve, changed roles and relationships, and need for advocacy and support, emerged from the data. From the three broad categories, seven more specific themes were identified: guarded optimism, buying time, change in relationships, work versus disability, access to medications, access to HIV/AIDS competent health care, and focused support services. Collectively, the phenomenon resulting from these men's experiences and concerns can be described as efforts to restructure life to face a future they did not expect. These findings support the need for developing formal, structured interventions to help persons living with AIDS (PLWA) to restructure their lives as new antiretroviral therapies promote improvements in health.

Protease inhibitors: a new weapon and a new strategy against HIV

Until recently, reverse transcriptase inhibitors have been the mainstay for treating HIV infection. Now, three protease inhibitors have been approved. Early evidence suggests that triple therapy delays the progression of HIV infection. An understanding of these new drugs and treatment strategies is imperative for clinicians. This article (1) reviews HIV's structure and replication process, (2) discusses currently approved reverse transcriptase and protease inhibitors, (3) describes the antiretroviral drugs' modes of action, (4) discusses important nursing implications for monitoring clients on these drugs, and (5) presents current scientific evidence regarding the effectiveness of combination therapy strategies.

Knowledge and risk behaviors of people seeking HIV antibody testing at a community site

People seeking HIV antibody testing at a community-based AIDS service organization (N = 342) were asked to complete a self-report questionnaire to determine knowledge of HIV transmission, source(s) of HIV-related knowledge, and recent risk behaviors. The overall knowledge level of risk for transmitting HIV associated with 16 related behaviors was relatively high. Yet, 69% of the participants reported engaging in unsafe sex during the previous six months. Poorly informed subjects tended to overestimate their level of knowledge. In a multiple regression analysis, knowledge, age, and gender were the only significantly predictors of engaging in unsafe sex in this cohort. Nurses must be on the forefront in developing (1) strategies to reach people at high risk for HIV infection and HIV transmission, (2) culturally relevant and sensitive education, and (3) interventions that will enable people to make appropriate choices concerning high-risk behaviors.

Extrapunitive and intropunitive anger of HIV caregivers: nursing implications

The purpose of this qualitative study was to investigate the anger of individuals who have provided direct patient care to loved ones who are living with or who have died from AIDS. The sample consisted of eight individuals who are currently involved in an AIDS service organization in northeast Tennessee. Data were collected using semistructured taped interviews. At the beginning of the study, two group interviews were conducted. Subsequently, each of the participants was interviewed privately. Extrapunitive and intropunitive anger were predominant themes in each of the interviews. Participants also reported ways of coping with their anger. Nurses can suggest these strategies to other caregivers who are experiencing anger. Recommendations for additional nursing interventions are offered.

Systematic pain records and their impact on pain control. A pilot study

This study examined the impact of a systematic nursing pain assessment tool (PAT) and pain flow sheet (PFS) on pain management. A control group (N = 23) was compared with a treatment group (N = 20) of hospitalized patients on a medical oncology unit. In the control group, "routine" charting of pain was done in the nurses' narrative notes. Patients in the treatment group underwent standardized pain assessment and documentation using a PAT and PFS. The treatment group reported significantly lower average pain intensity ratings (chi 2 = 5.019, p = 0.02) on day three of follow-up. In addition, a greater number of patients in the treatment group (85%) reported decreased pain intensity from day one to day three as compared with the control group (57%). This study supports other research and recommendations in the literature that use of systematic pain records can improve pain management.

Comparison of alcohol shock enrichment and selective enrichment for the isolation of Clostridium difficile

Two enrichment methods were compared for their ability to recover Clostridium difficile from stool samples. One method used selective enrichment in an antibiotic-containing broth followed by detection with a latex particle agglutination (LPA) reagent. The other used enrichment in a non-selective broth following treatment of the specimen with alcohol. With clinical specimens enrichment culture was significantly more successful at detecting C. difficile than direct plating. Alcohol shock enrichment was twice as effective as direct culture, while selective broth enrichment was three times more effective. The use of LPA for screening selective enrichment broths for C. difficile should prove a cost-effective measure as only positive broths (about 20%) require subculture for confirmation.

Antibiotic susceptibility of clinical isolates of clostridia

Over a 2 1/2 year period 361 clinical isolates of clostridia, representing 28 species, were tested for susceptibility to commonly used antimicrobial agents. Penicillin resistant strains were tested for their ability to produce beta-lactamase: of the commonly isolated species only Clostridium beijerinckii/butyricum produced the enzyme. Cl. perfringens exhibited a low incidence of resistance to all of the agents tested. Cl. difficile showed a high degree of resistance to penicillin and clindamycin, whilst all strains were sensitive to vancomycin. Chloramphenicol and amoxycillin/clavulanic acid were found to be highly active against most clostridia; metronidazole was the only agent to which no resistance was demonstrable.

Gas chromatographic identification of Clostridium difficile and detection of cytotoxin from a modified selective medium

A modification of an existing selective medium for Clostridium difficile is described. Inclusion in the medium of DL nor-leucine and p-hydroxyphenylacetic acid enables identification of C difficile to be made directly from primary isolation plates by gas chromatographic detection of caproic acid and p-cresol. Plugs of agar withdrawn from the selective medium also allow the detection of cytotoxin production in vitro.

Anaerobic balanoposthitis

To assess the causative role of non-sporing anaerobes in cass of erosive balanoposthitis, anaerobic culture was performed on purulent discharges from 104 patients with penile ulceration, a foul-smelling discharge, and a mixed and motile bacterial flora. Most of 29 culturally confirmed infections were due to mixed anaerobes and eight to single anaerobes. A rapid response to treatment with metronidazole also confirmed the anaerobic cause of the infection. Thus, acute anaerobic balanoposthitis can be readily diagnosed clinically and is easily treated.

Appraisal in the diagnostic laboratory of three commercially available anaerobic cabinets

Three commercially available anaerobic cabinets are described and their performance in relation to one another and to a standard anaerobic jar technique are reported upon from a clinical laboratory.

Rapid detection and presumptive identification of Clostridium difficile by p-cresol production on a selective medium

A modification of a selective medium for Clostridium difficile is described. The ability of Cl difficile to produce p-cresol from p-hydroxy phenyl acetic acid provides a means for the rapid, sensitive detection and presumptive identification of this species in faecal cultures.

A new anaerobic jar

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Metronidazole in prevention and treatment of bacteroides infections in elective colonic surgery

A double-blind randomised trial was carried out among 46 patients undergoing elective colonic surgery; 27 patients received prophylactic metronidazole and 19 received placebo. Anaerobic infections did not develop in any of the metronidazole-treated patients, but did develop in 11 (58%) of 19 controls who were subsequently successfully treated with metronidazole.

Rapid diagnosis of anaerobic infections by gas-liquid chromatography of clinical material

Gas-liquid chromatographic analysis of samples of pus provides a rapid and reliable means for the presumptive differentiation of anaerobic from aerobic infections.

Metronidazole in prevention and treatment of bacteroides infections after appendicectomy

The frequency of non-clostridial anaerobic infection was studied in 95 patients who had undergone acute appendicectomy: 49 received prophylactic metronidazole and 46 received placebo. Anaerobic infection did not develop in any of the metronidazole-treated patients, but infections did develop in nine (19%) of the 46 controls. Metronidazole is conveniently administered by suppository to patients who cannot take oral drugs. Five patients with intra-abdominal infections caused by non-clostridial anaerobes were successfully treated with metronidazole.