{"id":8504,"date":"2017-06-26T13:31:38","date_gmt":"2017-06-26T18:31:38","guid":{"rendered":"https:\/\/wholehealthchicago.com\/?p=8504"},"modified":"2021-08-08T22:14:59","modified_gmt":"2021-08-09T03:14:59","slug":"six-commonly-missed-diagnoses-parasites-2","status":"publish","type":"post","link":"https:\/\/wholehealthchicago.com\/blog\/2017\/06\/26\/six-commonly-missed-diagnoses-parasites-2","title":{"rendered":"Six Commonly Missed Diagnoses: Parasites"},"content":{"rendered":"\n

If internet scare tactics from companies selling herbal supplements for parasites<\/a> weren\u2019t enough, the cable TV show \u201cMonsters Inside Me\u201d with its toe-curling film clips has cinched it. We\u2019re in a new \u201cAlien versus Predator\u201d mode, though you might ask which one is us and which them. Those really large parasites you\u2019ll see wriggling across your flat-screen Sony as you scream \u201cI can\u2019t watch this!\u201d (but do) are all helminths, better known as worms. Worldwide, intestinal worm infestation is pretty common, but mainly in underdeveloped countries where people have a bit more contact with raw sewage than we do here in Chicago (unless you swim in the river<\/a>).<\/p>\n\n\n\n

The helminths are the stars of \u201cMonsters Inside Me\u201d because they\u2019re big enough to see without a microscope. When patients ask me to check them for parasites or report \u201csomething wriggling in my toilet,\u201d it\u2019s the helminths they have in mind. Obsessing about parasites, despite your best efforts your mind keeps rewinding to John Hurt\u2019s untimely and utterly galvanizing death-by-parasite in the original \u201cAlien.\u201d<\/p>\n\n\n\n

Despite studying parasites of all stripes in medical school and testing thousands of patients for them, I think I\u2019ve seen fewer than a dozen cases of intestinal helminth infestation in my entire career. Most of these were in children who\u2019d picked up a pinworm infection (E. vermicularis)<\/em>, little ones being very democratic about their anal hygiene. Pinworm intestinal infection is generally harmless, its main symptom itching around the anus. Treatment using a worm killer, called a vermifuge, wipes out the pinworms after one or two doses.<\/p>\n\n\n\n

A second infection is hookworm, once prevalent in the southern US and caused by a combination of inadequate plumbing and a preference for barefootedness. Probably most of the characters in Erskine Caldwell\u2019s novels like God\u2019s Little Acre<\/em> and Tobacco Road<\/em> had hookworm. Through a very circuitous route, the worm enters through skin and ends up in the intestines. Once diagnosed it\u2019s easy to treat. I\u2019ve seen exactly one case of hookworm, in a returning Peace Corps worker who should have known better.<\/p>\n\n\n\n

Other less common helminths are roundworm (Ascaris lumbricoides) <\/em>and the scary looking tapeworm (several species), once common when we were sloppy with our meat, poultry, and fish preparation. Jewish grandmothers and great-grandmothers were frequently victims of fish tapeworm (Diphyllobothrium)<\/em>, infected by sampling their uncooked haddock while making gefilte fish. These days it\u2019s our sushi\/sashimi addiction that renders us susceptible to fish tapeworm. Given the amount of sushi we eat, though, the actual incidence of tapeworm is extremely rare.<\/p>\n\n\n\n

What\u2019s living inside me?<\/strong><\/h3>\n\n\n\n

It\u2019s these worms (and that TV show) that cause people to lie awake at night wondering what\u2019s living inside them. Well stop wondering and go back to sleep. I want to emphasize that all of these are (a) rare, (b) easy to diagnose, and (c) fairly easy to treat.<\/p>\n\n\n\n

You\u2019ll not see the single-celled protozoa infestation stories much on TV. Characters visible only with a microscope just lack the panache, the stage presence, to terrify. However, it\u2019s infections with these little buggers that we\u2019re discussing today.<\/p>\n\n\n\n

Doctors are in full agreement that two specific intestinal protozoa\u2013ameba (E. histolytica)<\/em> and giardia (G. Lamblia)<\/em>\u2013are troublemakers. Both are acquired by the unappetizing \u201cfecal-oral\u201d route of transmission, which is exactly what it sounds like (now go wash your hands). Most people don\u2019t recall just where they might have acquired amebiasis or giardiasis, but as a general rule you get it from someone who didn\u2019t wash hands after using the toilet. Campers occasionally get giardiasis from drinking water downstream from a herd of cattle. Both infections are manifested by a sudden onset of diarrhea. In the case of giardia, it can be quite explosive and lead to dehydration. Just about anyone who has sudden diarrhea after travelling that doesn\u2019t respond to the routine antibiotics for traveler\u2019s diarrhea (Cipro, Xifaxan, Flagyl) should be tested for these protozoa.<\/p>\n\n\n\n

Less agreement among physicians occurs with three other parasites: Endolimax nana, Dientamoeba fragilis<\/em>, and Blastocystis hominis. <\/em>For years, these three were considered harmless. Unfortunately, most lab technicians assigned to poop examination (a part-time job I myself held during medical school) are not well-trained in checking for them. It\u2019s very likely a reasonable percentage of patients written off as irritable bowel syndrome\/diarrhea dominant actually have an infection with one of these three. The main clues that their IBS is protozoan in origin are that the diarrhea emerges as a new event in their lives, unrelated to stress, and isn\u2019t triggered by any particular foods. \u201cI got traveler\u2019s diarrhea while in Mexico and despite antibiotics, it never went away,\u201d sends me a clear signal to check for parasites.<\/p>\n\n\n\n

An easy fix<\/strong><\/h3>\n\n\n\n

The combination of lab techs missing these parasites and physician disbelief that the three are troublemakers qualifies parasites for inclusion on our Commonly Missed Diagnosis list. Most of the really good parasite labs\u2013Genova (formerly Great Smokies), Meta Metrix, Doctor\u2019s Data, Meridian Valley\u2013are virtually never used by physicians affiliated with large US medical centers, these doctors preferring to blindly trust their hospital labs. I remember one patient telling me how she handed her Genova parasite test result (showing heavy counts of dientamoeba and blastocystis) to her Northwestern gastroenterologist. He saw the lab and tossed it back without reading it, saying \u201cThis is garbage. Never heard of this lab. Bet you got it from a chiropractor.\u201d  This, of course, can potentially lead to years of unnecessary diarrhea.<\/p>\n\n\n\n

Nutritional guru Alan Gaby, MD, once remarked that if a patient has no access to one of the parasitology labs, she should take her specimen to a veterinarian and palm off her poop as belonging to her beloved pet. Veterinarians are much better than conventional physicians at diagnosing parasites.<\/p>\n\n\n\n

Once a diagnosis of any of the three parasites is made, treatment is generally straightforward with an anti-parasite med like Flagyl (metronidazole), an antibiotic like the sulfa drug Bactrim, or a combination of these. After treatment for any parasite, whether it\u2019s a helminth (worm) or a protozoan, a follow-up stool collection is mandatory to ensure it\u2019s been completely eradicated.<\/p>\n\n\n\n

Sleep well\u2026<\/p>\n\n\n\n

Be well,<\/p>\n\n\n\n

David Edelberg, MD<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

If internet scare tactics from companies selling herbal supplements for parasites weren\u2019t enough, the cable TV show \u201cMonsters Inside Me\u201d with its toe-curling film clips has cinched it. We\u2019re in a new \u201cAlien versus Predator\u201d mode, though you might ask which one is us and which them. Those really large parasites you\u2019ll see wriggling across […]<\/p>\n","protected":false},"author":2087,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,1778,29,195,226,3,70],"tags":[],"class_list":["post-8504","post","type-post","status-publish","format-standard","hentry","category-blog","category-candida-yeast-and-parasites","category-digestion","category-diseases","category-immune-system","category-knowledge-base","category-s"],"yoast_head":"\r\nSix Commonly Missed Diagnoses: Parasites<\/title>\r\n<meta name=\"description\" content=\"Less agreement among physicians occurs with three other parasites: Endolimax nana, Dientamoeba fragilis, and Blastocystis hominis.\" \/>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" 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