Endophthalmitis in the western Sydney region: a case-control study.

BACKGROUND: A retrospective case-control study was conducted to investigate risk factors for endophthalmitis following routine intraocular surgery. METHODS: A review was performed of consecutive cases of endophthalmitis from three teaching hospitals in the western Sydney region and matched controls from the same institutions between 1996 and 1998. RESULTS: There were 31 cases and 66 controls. Eighty procedures were phacoemulsification, 15 conventional extracapsular cataract extraction, and two were penetrating keratoplasties. Of the 80 patients who had phacoemulsification surgery, 50 had a clear corneal incision, and 26 had a scleral incision (four were unknown). Logistic regression showed an increased risk of endophthalmitis with surgical complications (P = 0.002) and clear cornea temporal incisions (P = 0.007). Risk of endophthalmitis was reduced with use of subconjunctival injections (P = 0.008). The yield for the Gram stain was 47% and for culture was 67%. Anterior chamber tap in addition to vitreous biopsy alone did not increase the yield for microorganism (P = 0.78). Mean visual acuity on presentation was hand movement with 13 patients (50%) showing visual improvement following intravitreal injections of antibiotics (P = 0.003). Visual prognosis did not correlate with presenting visual acuity but appeared to be better in those who grew Staphylococcus epidermidis or were culture negative. CONCLUSIONS: Although this study is unable to draw definite conclusions regarding risk of endophthalmitis in clear corneal temporal cataract surgery, sufficient data suggest the importance of incision type and location. Surgical complication is an important risk factor for endophthalmitis. Use of subconjunctival antibiotic injections at the conclusion of the procedure is recommended.

Symptoms of posttraumatic stress in young adult survivors of childhood cancer.

PURPOSE: This study assessed the prevalence of posttraumatic stress symptoms in young adult survivors of childhood cancer and the association of posttraumatic stress with anxiety, adjustment, perceptions of illness and treatment, and medical data extracted from oncology records. PATIENTS AND METHODS: Seventy-eight young adults (ages 18 to 40 years) who had been treated for childhood cancer completed questionnaires and psychiatric interviews assessing posttraumatic stress, anxiety, perceptions of their illness and treatment, and symptoms of psychologic distress. Data on treatment intensity and severity of medical late effects were collected via chart review. RESULTS: Of the patient sample, 20.5% met American Psychiatric Association Diagnostic and Statistical Manual criteria for posttraumatic stress disorder (PTSD) at some point since the end of their treatment. Clinically significant levels of intrusive (9%) and avoidant (16.7%) symptoms were reported. Participants also reported elevated state and trait anxiety. Participants with PTSD reported higher perceived current life threat, more intense treatment histories, and higher (and clinically significant) levels of psychologic distress than those who did not have PTSD. CONCLUSION: One-fifth of this sample of young adult survivors of childhood cancer met criteria for a diagnosis of PTSD, with clinically significant symptoms of intrusion and avoidance reported. As in other samples, PTSD in young adult survivors was associated with anxiety and other psychologic distress. Survivors' perceptions of treatment and its effects were more highly associated with posttraumatic stress than were more objective medical data. The data suggest that cancer-related posttraumatic stress may emerge in young adulthood and may affect the achievement of developmental milestones and orientation toward health care.

Posttraumatic stress disorder: understanding the psychosocial impact of surviving childhood cancer into young adulthood.

Little research has been done to explore how the psychological symptoms of child and adolescent cancer survivors change in the decades following successful treatment. This article examines these changes with a focus on the utility of a posttraumatic stress framework for understanding the long-term coping issues that individuals face as they mature and make transitions to young adulthood. First, the literature supporting the use of a posttraumatic stress framework in child and adolescent survivors is reviewed. Developmental contributions to changes and increases in posttraumatic symptomatology during young adulthood are then discussed and posttraumatic symptoms most often seen in this group are presented. Preliminary research with young adult survivors is also reviewed and discussed as support for a posttraumatic stress framework with this population. Ongoing research efforts aimed at elaborating on this framework are described. Finally, clinical implications for health care providers are explored, and guidelines for assessing the impact of posttraumatic stress on young adults' use of health care resources are offered.

The ecological context of human ovarian function.

New methods for monitoring ovarian function have allowed an extension of research venue beyond typical clinical settings to studies of human populations in their natural settings. Such studies have confirmed that patterns of variation in ovarian function with age and energetic factors are general features of human reproductive biology. Age patterns of ovarian function are extremely robust across populations of distinct genetic, ecological and cultural backgrounds. Comparable ovarian responses to energetic stresses are likewise observable in different populations where they arise as correlates of local ecologies rather than as correlates of voluntary patterns of diet or exercise. Maternal age and energetic factors also appear to interact with lactation in the modulation of postpartum, ovarian function. Average levels of ovarian function, however, differ considerably between populations, perhaps correlated with chronic environmental conditions that affect growth, development, and the establishment of adult set-points. Western populations appear to represent an extreme of the spectrum of variation in ovarian function, a fact which may relate to the epidemiology of breast and ovarian cancer.

Salivary measurement of episodic progesterone release.

Episodes of luteal progesterone release which have been identified from serum samples can also be observed in saliva. Components of these release episodes--amplitude, duration, and frequency--can be separated and characterized. In a sample of 16 cycle days collected from 6 normal women, pulse duration and frequency increased significantly from the early to the mid-luteal phase, and then decreased by the late luteal phase (2-4 days before menses). Pulse amplitude also increased early to mid-luteal, but continued to increase significantly into the late luteal, and did not decline until the peri-menstrual phase (0-1 days before menses). Circadian variation, previously considered unimportant for progesterone, was also observed in late luteal samples. Extension of studies of ultradian release characteristics to groups known to vary from controls in broad-scale progesterone patterns, such as young, nutritionally stressed, or exercising women, should help to elucidate the potential functional significance of fine-grained release components. Such knowledge can also inform protocols of anthropological studies which seek to identify broad progesterone patterns or to classify and compare reproductive status.