Tags: Bacterial vaginosis

Candida Vulvovaginitis

Risk factors for Candida infection of the vagina include pregnancy, oral contraceptive use, diabetes mellitus, HIV infection, and antimicrobial therapy, although the majority of infections occur in the absence of these risks. Typical complaints are vulvar pruritus and vaginal discharge (Box 1), although a wide range of symptoms exists.

Important Anaerobes

Anaerobic bacteria are the predominant component of the normal microbial flora of the human body. The following sites harbor the vast majority of them:

Important Anaerobes: Clinical Syndromes

Box 1 summarizes different clinical syndromes associated with anaerobic bacteria. The sections that follow describe the various syndromes, including clinical findings. For some syndromes, specific diagnosis and treatment information is included as well.

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For amebiasis there is still discussion about the use of a single high dose versus repeated lower doses, both as regards efficacy and adverse effects. The use of metronidazole against infections with anerobic bacteria has increased over the years, and with this indication the use of metronidazole in combination with many other drugs used by patients with conditions likely to develop secondary anaerobic bacterial infections. With increased use there is also a widespread and increasing incidence of resistance of various strains of bacteria. The use of metronidazole as an added medication merely “to make assurance double sure” is to be discouraged.

Cervicitis, Ectropion & True Erosion

Cervicitis — Chlamydia trachomatis, Trichomonas vaginalis. Ectropion — hormonal changes with oral contraceptive use (especially with progesterone) or during pregnancy. True erosion — injury to atrophic epithelium due to estrogen deficiency in menopause.

Infectious disorders

Infectious diseases comprise those illnesses that are caused by microorganisms or their products. Clinical manifestations of infection occur only when sufficient tissue injury has been inflicted directly by microbial products (e.g., endotoxins and exotoxins), or indirectly by host responses (e.g., cytokines and hydrolytic enzymes released by polymorphonuclear leukocytes). Despite the extraordinary recent advances that have occurred in therapeutics for infectious diseases, a number of basic principles should be followed to prescribe antimicrobials and vaccines is an optimal manner.

CDC Recommendations for Postexposure Prophylaxis following Occupational Exposure to HIV

Since most occupational exposures to HIV do not result in transmission of the virus, the potential toxicity of PEP regimens must be considered carefully and, whenever possible, prophylaxis should be implemented in consultation with clinicians who have expertise in antiretroviral therapy and HIV transmission. Modification of the recommended regimens may be appropriate based on factors such as whether the source patient is known or suspected of being infected with drug-resistant strains of HIV; the local availability of antiretroviral agents; and the medical condition, concurrent drug therapy, and drug toxicity in the exposed health-care worker. A decision to offer such prophylaxis should be individualized taking into account the likelihood of HIV transmission occurring, the potential benefits and risks of such prophylaxis, and the interval between the exposure and initiation of therapy.

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Adverse GI effects frequently occur with oral, IM, or IV clindamycin and may be severe enough to necessitate discontinuance of the drug. Adverse GI effects of clindamycin include nausea, vomiting, diarrhea, abdominal pain, and tenesmus.

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Clindamycin hydrochloride and clindamycin palmitate hydrochloride are administered orally. Clindamycin phosphate is administered by IM injection or by intermittent or continuous IV infusion. Clindamycin hydrochloride capsules and clindamycin palmitate hydrochloride oral solution can be administered without regard to food. To avoid the possibility of esophageal irritation, clindamycin hydrochloride capsules should be administered orally with a full glass of water.

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Clindamycin generally is used for the treatment of serious infections caused by susceptible gram-positive bacteria and for the treatment of serious infections caused by susceptible anaerobic bacteria. Because the risk of severe, potentially fatal Clostridium difficile-associated diarrhea and colitis may be higher with clindamycin than with certain other anti-infectives, use of the drug should be limited to serious infections for which less toxic and/or more effective anti-infectives are not readily available. However, it should be noted that C. difficile diarrhea and colitis has been associated with the use of nearly all anti-infectives, being reported most frequently with clindamycin, cephalosporins, and ampicillin; second and third generation cephalosporins play an increasingly important role.