Biomedical subjects
Publications and source records attributed to R S Pattman.
After a recent report showing the in vitro susceptibility to mebendazole of a strain of Trichomonas vaginalis that was resistant to metronidazole, we present two cases of metronidazole resistant infection, both of which failed to respond to oral mebendazole.
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A woman initially aged 25 was treated for seven years for symptomatic vaginal trichomoniasis. Throughout that period the patient received 5-nitroimidazoles at conventional and high dosages, antimicrobial agents to eliminate vaginal organisms capable of interfering with treatment, acidifying preparations, and vaccination with inactivated Lactobacillus acidophilus. Despite all the regimens used, the condition remained refractory to treatment.
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Motile curved bacilli seen in vaginal secretions have been isolated on Columbia agar supplemented with 5% human blood and vitamin K. Growth occurred both anaerobically and in 5% oxygen, but not under more aerobic conditions. There were two distinct groups of these organisms, distinguishable by morphology, biochemical activity, antigenic pattern and susceptibility to metronidazole. All isolates were sensitive to a wide range of antimicrobial agents, with the exception of nalidixic acid and polymyxin. One group was resistant to metronidazole.
Curved rods were found in 108 (21.6%) of 500 women consecutively attending a genito-urinary medical clinic. A positive association was elicited with the wearing of an intra-uterine contraceptive device (p less than 0.001), intercourse with a casual or multiple sexual partners within the preceding 3 months (p less than 0.001) and concurrent chlamydial infection of the uterine cervix (p less than 0.025). There was no apparent relationship with contact with non-candidal balanitis, but an increased rate (31.3%) was noted in contacts of non-gonococcal urethritis indicating a need for further research into a possible aetiological role.
Motile curved rods seen in vaginal secretions have been isolated on Columbia agar supplemented with 5% human blood and vitamin K. Growth occurred anaerobically and in 5% oxygen but not in more aerobic conditions. There were two distinct groups of these organisms, distinguishable by morphology, biochemical activity and susceptibility to metronidazole. All isolates were sensitive to a wide range of antimicrobial agents, with the exception of nalidixic acid and polymyxin, but one group was resistant to metronidazole. There was little difference between the results of tests of susceptibility to aminoglycosides or to metronidazole performed in anaerobic and microaerophilic conditions. Motile curved rods were isolated from 18 of 80 patients with a clinical diagnosis of non-specific vaginitis, but from only two of 39 without the disease.
The case sheets of patients coded as D2 (other conditions requiring treatment) and D3 (other conditions not requiring treatment) in 1981 were reclassified on a problem-orientated basis. Ten discreet categories were delineated with ease. Women with non-specific vaginitis and men with Gardnerella vaginalis urogenital infection, usually coded D2 or C4, should be reclassified under the C group of conditions as, for example, "Gardnerella or other bacterial genital infections." It is suggested that codes D2 and D3 be replaced by the following nine categories: genital skin lesions or rashes; genitourinary symptoms; enteric conditions; other sexually transmitted infections; normal genital architecture, congenital conditions, or unconfirmed genital discharges; asymptomatic patients attending for routine examination; uninfected contacts of patients with sexually transmitted diseases; psychosexual problems; and others.
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The Till-U-Test Candida Dermatophyte (TUT CD) culture slide, produced for the diagnosis of yeast and dermatophyte infections, was compared with microscopy and formal laboratory culture in the diagnosis of vaginal candidosis. Candida albicans grew readily on the medium and reliable results were obtained within a mean of three days' incubation at room temperature. Agreement with laboratory culture was 91 . 4%; 29% of cases would have been missed by microscopy alone. The TUT CD is a useful device, therefore, in the investigation of vaginitis.
Urethral gonorrhoea was diagnosed by culture in 957 (18.8%) of 5076 new male patients attending a sexually transmitted diseases clinic; the infection was asymptomatic in 38 (4%) of these patients. The diagnosis in only six (0.3%) out of 2159 men with urethral gonorrhoea but with no symptoms or signs of urethritis would have been missed if urethral cultures had not been performed.
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