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Biomedical subjects

C Van Riper

Publications and source records attributed to C Van Riper.

15 recordsLinked to original sources

Parental and professional perceptions of problems associated with long-term pediatric home tube feeding.

We surveyed 24 caregivers of children fed by gastrostomy tube to identify day-to-day problems encountered in home enteral nutrition. In a second survey, 21 respondents cross-validated the problem list by rating how often they experienced each problem and how difficult each problem was to manage. Problems related to social functioning, recreational activities, and family functioning were rated by caregivers as the most frequent and difficult. We asked 11 pediatric feeding specialists to rate the same problems based on their perceptions of the frequency and severity of problems experienced by caregivers. Moderate agreement was found between professional and caregiver ratings, although professionals generally rated problems as more common and difficult than did the caregivers. Additionally, positive relationships were found between caregiver ratings of common gastrostomy-tube problems and general levels of stress in the home. Data suggest that problems identified by caregivers as most common and difficult are often in the social rather than the medical realm. A broadly based family assessment that focuses on medical and social aspects of home enteral nutrition may maximize nutritional benefits for the patient as well as improve general family functioning and reduce stress in the home.

Adolescent↗

Comparative susceptibility of Culex tarsalis, Anopheles franciscanus, and Culiseta inornata (Diptera: Culicidae) to Plasmodium relictum (Haemosporidia: Plasmodiiae).

Repeated laboratory attempts failed to infect Culiseta inornata (Williston) and Anopheles franciscanus McCracken with Plasmodium relictum as efficiently as Culex tarsalis Coquillett controls. Of 210 An. franciscanus that imbibed a replete meal from a parasitemic canary, two were found with oocysts and none with sporozoites. Of 112 Cs. inornata similarly fed, seven contained oocysts and one contained sporozoites. In contrast, of 94 Cx. tarsalis tested, 80 (85%) were found with oocysts, thus confirming that this mosquito is a suitable host of P. relictum. Lack of An. franciscanus and Cs. inornata with sporozoites precluded transmission studies and indicated that these species do not play a major role in the maintanance of P. relictum during fall and winter in the Sacramento Valley, Calif.

Animals↗

Five new species of Isospora from Hawaiian birds.

The following species are described from Hawaiian birds: Isospora brayi sp. n., with oocysts 27 X 26 micron and sporocysts 19 X 12 micron, from the Japanese white-eye, Zosterops japonicus Temminck & Schlegel; Isospora cardinalis sp. n., with oocysts 24 X 23 micron, and sporocysts 16 X 10 micron, from the cardinal, Cardinalis cardinalis (Linnaeus); Isospora ivensae sp. n., with oocysts 26 X 25 micron, and sporocysts 18 X 12 micron, from the spotted or white-throated munia, Lonchura punctulata (Linnaeus); Isospora loxopis sp. n., with oocysts 26 X 23 micron, and sporocysts 16 X 13 micron, from the amakihi or honeycreeper, Loxops virens (Gmelin); and Isospora phaeornis sp. n., with oocysts 27 X 19 micron, and sporocysts 16 X 11 micron, from the omao or Hawaiian thrush, Phaeornis obscurus (Gmelin). All the host birds belong to the order Passerorida.

Animals↗