1.Anchitrema sanguineum (Digenea: Anchitrematidae) Accidentally Found during Colonoscopy of a Patient with Chronic Abdominal Pain: A Case Report.
Teera KUSOLSUK ; Nantana PAIBOON ; Somchit PUBAMPEN ; Wanna MAIPANICH ; Paron DEKUMYOY ; Jitra WAIKAGUL
The Korean Journal of Parasitology 2009;47(2):167-170
In November 2007, a 46-year-old male Thai patient presented with chronic abdominal pain for over 3 years. Colonoscopy revealed a small parasite of about 2 x 1 mm in size attached to the cecum mucosa. The worm was removed endoscopically, fixed, and stained for morphological observations. The specimen was identified as Anchitrema sanguineum (Digenea: Anchitrematidae), a trematode first reported in a reptile, Chamaeleo vulgaris, from Egypt, and then sporadically found in the intestines of insectivorous bats and other mammals. The patient was treated with praziquantel but no more worms were found in his stool. His symptoms improved slightly but not cured completely. It remains unclear whether the chronic abdominal pain of the patient was caused by this trematode infection. Whatever is the pathogenicity of this trematode, this is the first human case of A. sanguineum infection in the literature.
Abdominal Pain/*etiology
;
Animals
;
Antiprotozoal Agents/therapeutic use
;
Cecum/parasitology
;
Colonoscopy
;
Humans
;
Intestinal Mucosa/parasitology
;
Male
;
Middle Aged
;
Praziquantel/therapeutic use
;
Thailand
;
Trematoda/*isolation & purification
;
Trematode Infections/*diagnosis/drug therapy/pathology
2.Egg Laying Capacity of Haplorchis taichui (Digenea: Heterophyidae) in Humans.
Megumi SATO ; Surapol SANGUANKIAT ; Somchit PUBAMPEN ; Teera KUSOLSUK ; Wanna MAIPANICH ; Jitra WAIKAGUL
The Korean Journal of Parasitology 2009;47(3):315-318
Quantitative fecal egg counts represented as the number of eggs per gram of feces (EPG) are generally a reliable parameter to estimate the worm burden of intestinal and hepatic parasitoses. Although Haplorchis taichui (Digenea: Heterophyidae) is one of the most common minute human intestinal flukes, little is known about the relationship between EPG and the actual worm burden in patients or the severity of the disease. In the present study, fecal samples were collected from 25 villagers in northern Thailand before and after praziquantel treatment. The EPG values of each participant were determined by the modified cellophane thick smear method, and adult worms were collected from the whole stool after the treatment. Eggs per day per worm (EPDPW) of H. taichui were estimated 82 from egg counts and expelled worms. The EPG was not well correlated with the worm burden, and a reverse correlation was observed between the EPDPW and the worm burden.
Animals
;
Feces/parasitology
;
Heterophyidae/isolation & purification/*physiology
;
Humans
;
Parasite Egg Count
;
Trematode Infections/*parasitology
3.Haplorchis taichui as a Possible Etiologic Agent of Irritable Bowel Syndrome-Like Symptoms.
Dorn WATTHANAKULPANICH ; Jitra WAIKAGUL ; Wanna MAIPANICH ; Supaporn NUAMTANONG ; Surapol SANGUANKIAT ; Somchit PUBAMPEN ; Rangson PRAEVANIT ; Srisuchat MONGKHONMU ; Yukifumi NAWA
The Korean Journal of Parasitology 2010;48(3):225-229
The aim of this study is to clarify the clinical features of Haplorchis taichui infection in humans in Nan Province, Thailand, and to correlate the clinical features with irritable bowel syndrome (IBS)-like symptoms. In this study area, only H. taichui, but neither other minute intestinal flukes nor small liver flukes were endemic. The degree of infection was determined by fecal egg counts and also by collecting adult worms after deworming. The signs and symptoms of individual patients together with their hematological and biochemical laboratory data were gathered to evaluate the relationship between the clinical features and the severity of infection. Special emphasis was made to elucidate the possible similarities of the clinical features of H. taichui infection and IBS-like symptoms. The results showed useful clinical information and the significant (> 50%) proportion of haplorchiasis patients complained of abdominal pain, lassitude, and flatulence, which were the important diagnostic symptoms of IBS. This study has reported a possible link between H. taichui and IBS, and H. taichui might probably play a role in the etiology of these IBS-like symptoms.
Adolescent
;
Adult
;
Aged
;
Animals
;
Child
;
Feces/parasitology
;
Female
;
Heterophyidae/*isolation & purification/physiology
;
Humans
;
Irritable Bowel Syndrome/*parasitology
;
Male
;
Middle Aged
;
Thailand
;
Trematode Infections/*parasitology
;
Young Adult
4.Asymptomatic Human Paragonimiasis among the Karen People in Tak Province, Thailand: A Case Report
Teera KUSOLSUK ; Orawan PHUPHISUT ; Wanna MAIPANICH ; Somchit PUBAMPEN ; Surapol SA-NGUANKIAT ; Akkarin POODEEPIYASAWAT ; Nirundorn HOMSUWAN ; Srisuchart MONGKOLMOO ; Tippayarat YOONUAN ; Poom ADISAKWATTANA ; Udomsak SILACHAMROON ; Yukifumi NAWA
The Korean Journal of Parasitology 2020;58(1):57-60
During the mobile clinic activities in Tak Province, Thailand, Paragonimus sp. eggs were found in a fecal sample of a 72-year-old Karen resident. Paragonimus DNA was amplified from the stool sample and identified to P. heterotremus. The patient did not have any symptoms. Apparent pulmonary lesion was not found on the chest X-ray. The patient admitted habitual consumption of semi-cooked or roasted waterfall crabs for several years. The waterfall crabs collected from stream near the village were found negative for Paragonimus metacercariae. In northern Thailand, paragonimiasis remains as one of the public health concerns and should be ruled out for asymptomatic pulmonary patients.