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Cholera-like presentation in Vibrio fluvialis enteritis.



Abstract: We describe a patient who presented with cholera-like diarrhea seven days after eating shellfish at a seafood buffet on the Gulf Coast. The patient's stool culture grew only Vibrio fluvialis on TCBS agar, and his diarrhea and profound acidosis completely resolved within 24 hours of initiating antibiotics. To our knowledge, a detailed case of V fluvialis diarrhea with cholera-like symptoms has not been reported.

Key Words: Vibrio fluvialis, enteritis

**********

Vibrio fluvialis is a halophilic halophilic

pertaining to or characterized by an affinity for salt; requiring a high concentration of salt for optimal growth.
, polarly-flagellated, Gram negative rod that has been implicated in both outbreaks and sporadic cases of acute gastroenteritis in humans. Vibrio species are concentrated by oysters and other filter feeders and are frequently isolated from brackish surface waters of the coastal United States. V fluvialis was first isolated in Bahrain in 1975 from the stool of a patient with diarrhea. Not until 1981 did the Centers for Disease Control receive its first isolate from a patient who had V fluvialis gastroenteritis residing in the United States. (1) Originally called Group F vibrios by Lee et al in 1977, and EF-6 vibrios by the Centers for Disease Control in 1980, the bacterium was described and named Vibrio fluvialis by Lee et al in 1981. (2)

Case Report

A 72-year-old male with a history of coronary artery disease coronary artery disease, condition that results when the coronary arteries are narrowed or occluded, most commonly by atherosclerotic deposits of fibrous and fatty tissue.  presented with a four-day history of nausea, vomiting, abdominal cramping, and one to four watery, light-brown stools per hour unrelieved by loperamide loperamide /lo·per·amide/ (lo-per´ah-mid) an antiperistaltic used as the hydrochloride salt as an antidiarrheal and to reduce the volume of discharge from ileostomies.  or bismuth subsalicylate. He also noted decreased urine output, subjective fevers, and leg cramping two days before admission. He denied any hematochezia, melena melena /me·le·na/ (me-le´nah) the passage of dark stools stained with altered blood.

me·le·na
n.
, hematemesis hematemesis /he·ma·tem·e·sis/ (he?mah-tem´e-sis) the vomiting of blood.

he·ma·tem·e·sis
n.
The vomiting of blood.
, dysuria dysuria /dys·uria/ (dis-u´re-ah) painful or difficult urination.dysu´ric

dys·u·ri·a
n.
Difficult or painful urination.
, antibiotic use, recent travel, prior history of inflammatory bowel disease inflammatory bowel disease
n. Abbr. IBD
Any of several incurable and debilitating diseases of the gastrointestinal tract characterized by inflammation and obstruction of parts of the intestine.
, or alcohol use. He is a resident of the Mississippi Gulf Coast The Mississippi Gulf Coast refers to the three Mississippi counties which lie on the Gulf of Mexico: Hancock County, Mississippi, Harrison County, Mississippi, and Jackson County, Mississippi.  and had eaten shellfish at a local seafood buffet seven days before admission.

Presenting vitals vi·tals
pl.n.
1. The vital body organs.

2. The parts that are essential to continued functioning, as of a system.
 were pulse of 85 per minute, blood pressure of 118/37 mm Hg, temperature of 35.8[degrees]C, respirations of 18 per minute, and pulse oximetry of 98% on room air. Physical examination revealed dry mucous membranes, regular heart rate, and clear lungs. The patient had normal bowel sounds and a diffusely tender abdomen without rebound or guarding. Rectal examination was unremarkable. Serum chemistry revealed a sodium of 131 mmol/L, potassium of 3.5 mmol/L, chloride of 100 mmol/L, bicarbonate of 12.2 mmol/L, BUN of 55 mg/dL, creatinine of 7.0 mg/dL (baseline 1.0 mg/dL), glucose of 208 mg/dL, an anion gap of 18.8, ALT of 13 IU/L, alkaline phosphatase of 77 IU/L, total bilirubin of 0.3 mg/dL, amylase amylase (ăm`əlās'), enzyme having physiological, commercial, and historical significance, also called diastase. It is found in both plants and animals. Amylase was purified (1835) from malt by Anselme Payen and Jean Persoz.  of 44 U/L, lipase lipase (lī`pās), any enzyme capable of degrading lipid molecules. The bulk of dietary lipids are a class called triacylglycerols and are attacked by lipases to yield simple fatty acids and glycerol, molecules which can permeate the membranes  23.9 U/L, and lactate of 0.9 mmol/L. Arterial blood gas arterial blood gas Critical care Analysis of arterial blood for O2, CO2, bicarbonate content, and pH, which reflects the functional effectiveness of lung function and to monitor respiratory therapy Ref range pO2  revealed a pH of 7.17, PCO PCO 1 Patient complains of 2 Polycystic ovaries, see there 2 of 24.5 mm Hg, PO2 of 110 mm Hg, bicarbonate of 9 mmol/L, and 97% saturation on room air. Complete blood count showed an elevated white blood cell count white blood cell count,
n a diagnostic clinical laboratory test to determine the number and types of leukocytes present in a measured sample of blood. Overall the normal number of leukocytes ranges from 5000 to 10,000/mm3.
 of 13.1 x [10.sup.9]/L with 42% band forms, a hemoglobin of 14.9 g/dL, hematocrit of 44.5%, and platelets of 468,000/uL. Electrocardiogram was normal sinus rhythm without ischemic Ischemic
An inadequate supply of blood to a part of the body, caused by partial or total blockage of an artery.

Mentioned in: Antiangiogenic Therapy, Subarachnoid Hemorrhage, Ventricular Fibrillation


ischemic
 changes, and an acute abdominal series displayed a nonobstructive bowel gas pattern. Presenting bicarbonate deficit was approximately 420 mEq.

The patient was admitted to the intensive care unit and his renal function improved with IV hydration of 7 L within the first 5 hours of admission and 12 L within the first 24 hours; however, his diarrhea and acidosis continued despite bicarbonate and electrolyte replacement, fluid replacement, and loperamide. On the evening of hospital day 3, levofloxacin and doxycycline were started empirically on the early report of Gram negative rods in the stool. Stool samples before antibiotics were positive for occult blood and fecal leukocytes, and culture ultimately identified Vibrio fluvialis as the sole pathogen on TCBS agar. Levofloxacin was discontinued after one dose on the preliminary report of V fluvialis. Doxycycline was continued and resulted in the complete resolution of the patient's diarrhea and acidemia acidemia /ac·i·de·mia/ (as?i-de´me-ah) increased acidity of the blood. For those characterized by increased concentration of a specific acid, see at the acid.  on hospital day 4.

Discussion

The typical clinical picture of patients with diarrhea associated with V fluvialis was described in 500 patients in Bangladesh from 1976 to 1977, and includes vomiting (97%), abdominal pain (75%), moderate to severe dehydration (67%), and significant fever (35%). (3) Bloody diarrhea occurred in 11%, while microscopic evaluation demonstrated leukocytes and erythrocytes in 75%. (3)

Klontz and Desenclos (4) described the largest clinical series of V fluvialis cases in the United States. From 1982 through 1988, the Florida Department of Health Florida Department of Health is a category of Government of Florida. Orange County Health Department is one of the branches of Florida Department of Health and Government of Florida.  and Rehabilitative Services received 10 reports of patients presenting clinically with gastroenteritis and a stool culture positive for V fluvialis. Seven of the 10 patients' stool samples yielded only V fluvialis and no other pathogens. These patients commonly described their diarrhea as watery with a median of 7 episodes per day, but half reported at least one episode of bloody stool during the course of their illness. Eight had eaten seafood in the week before the onset of symptoms with the most common vehicle being raw oysters. In 2002, 36 isolates of V fluvialis were reported to the CDC, with 12 occurring in the Gulf Coast states of Florida, Alabama, Mississippi, Louisiana, and Texas. Of the 36 isolates, 29 were isolated from stool samples. (5)

Though diarrhea in general can cause electrolyte disturbances, none of the cases in the literature associated with V fluvialis has described diarrhea with such severe acidemia requiring bicarbonate replacement as in our patient. The frequency of one to four stools per hour is much greater than typically seen in association with this pathogen. Though our patient did have coronary artery disease, he lacked other significant comorbidities that could have contributed to the severity of his condition. His residence on the Gulf Coast and his history of eating shellfish just 7 days prior suggests the source of his infection. Despite receiving extensive supportive care in an intensive care unit for two days, his acidemia and profound diarrhea did not improve until the administration of antibiotics, with complete resolution within 24 hours of initiation. That his stool culture grew only V fluvialis is significant in that it suggests no confounding pathogens contributed to his condition. In addition, the patient's stool was negative for Clostridium difficile toxin, rotavirus antigen, and adenovirus antigen.

In addition to causing gastroenteritis, (4,6-8) V fluvialis has been implicated in cerebritis secondary to hemorrhagic cellulitis in an alcoholic who had suffered multiple fire-ant stings and had subsequently waded in brackish water. (9) V fluvialis has also been implicated in wound infections (4) including one associated with medicinal leech therapy, (10) peritonitis peritonitis (pĕr'ĭtənī`tĭs), acute or chronic inflammation of the peritoneum, the membrane that lines the abdominal cavity and surrounds the internal organs.  in a patient receiving continuous ambulatory peritoneal dialysis continuous ambulatory peritoneal dialysis See Peritoneal dialysis. , (11) and suppurative suppurative

pertaining to or emanating from suppuration; pus in e.g. suppurative arthritis, bronchopneumonia.
 cholangitis. (12)

V fluvialis produces several toxins, including cell elongation factor (CEF), cell-killing factor (CKF), a protease, and a hemolysin hemolysin /he·mol·y·sin/ (he-mol´i-sin) a substance that liberates hemoglobin from erythrocytes by interrupting their structural integrity.

he·mol·y·sin
n.
. (13,14) However, the exact role of each of these toxins in producing the clinical manifestations of V fluvialis-associated diarrhea has been difficult to establish.

Conclusion

Figures suggest that V fluvialis is infrequently implicated in gastroenteritis in the United States. However, only the cholera agents are nationally notifiable notifiable /no·ti·fi·a·ble/ (no?ti-fi´ah-b'l) necessary to be reported to a government health agency.

notifiable

necessary to be reported to the relevant government authority. Said of individual diseases.
; the true number of the remaining Vibrio infections is greater than reported. Though multiple case reports of diarrhea have been reported in the literature, none has described diarrhea with such frequency, dehydration, and severe acidemia requiring bicarbonate replacement. Ingestion of raw or undercooked seafood, especially raw oysters, is an important risk factor. Physicians should consider this organism in the differential diagnosis for diarrhea in patients who have recently ingested raw or undercooked seafood.

Acknowledgments

We thank Dr. Parisa Ann Suthun for her careful review of this paper.

References

1. Tacket CO, Hickman F. Peirce GV, et al. Diarrhea associated with Vibrio fluvialis in the United States. J Clin Microbiol 1982;16:991-992.

2. Lee JV, Shread P, Furniss AL, et al. Taxonomy and description of Vibrio fluvialis sp nov (synonym Group F vibrios, Group EF6). J Appl Bacteriol 1981;50:73-94.

3. Huq MI, Alam AK, Brenner DJ. et al. Isolation of Vibrio-like group, EF-6, from patients with diarrhea. J Clin Microbiol 1980;11:621-624.

4. Klontz KC, Desenclos JC. Clinical and epidemiological features of sporadic infections with Vibrio fluvialis in Florida, USA. J Diarrhoeal Dis Res 1990;8:24-26.

5. Centers for Disease Control. Summary of human Vibrio isolates reported to CDC, 1982. Available at: http://www.cdc.gov/foodborneoutbreaks/vibrio_sum/CSTE_Final_Vibrio02.pdf. Accessed May 1, 2005.

6. Bellet J, Klein B, Altieri M, et al. Vibrio fluvialis, an unusual pediatric pediatric /pe·di·at·ric/ (pe?de-at´rik) pertaining to the health of children.

pe·di·at·ric
adj.
Of or relating to pediatrics.
 enteric pathogen. Pediatr Emerg Care 1989;5:27-28.

7. Kolb EA, Eppes SC, Klein JD. Vibrio fluvialis: an underrecognized enteric pathogen in infants? South Med J 1997;90:544-545.

8. Hickman-Brenner FW, Brenner DJ, Steigerwalt AG, et al. Vibrio fluvialis and Vibrio furnissii isolated from a stool sample of one patient. J Clin Microbiol 1984;20:125-127.

9. Huang KC, Hsu RW. Vibrio fluvialis hemorrhagic cellulitis and cerebritis. Clin Infect Dis 2005;40:e75-e77.

10. Varghese MR, Farr RW, Wax MK, et al. Vibrio fluvialis wound infection associated with medicinal leech therapy. Clin Infect Dis 1996;22:709-710.

11. Ratnaraja N, Blackmore T, Byrne J, et al. Vibrio fluvialis peritonitis in a patient receiving continuous ambulatory peritoneal dialysis. J Clin Microbiol 2005;43:514-515.

12. Yoshii Y, Nishino H, Satake K, et al. Isolation of Vibrio fluvialis, an unusual pathogen in acute suppurative cholangitis. Am J Gastroenterol 1987;82:903-905.

13. Chikahira M, Hamada K. Enterotoxigenic en·ter·o·tox·i·gen·ic
adj.
Of or being an organism containing or producing an enterotoxin.


Enterotoxigenic 
 substance and other toxins produced by Vibrio fluvialis and Vibrio furnissii. Nippon Juigaku Zasshi 1988;50:865-873.

14. Lockwood DE, Kreger AS, Richardson SH. Detection of toxins produced by Vibrio fluvialis. Infect Immun 1982;35:702-708.
The pessimist complains about the wind; the optimist expects it to
change; the realist adjusts the sails.
--William Arthur Ward


David R. Allton, MD, Michael A. Forgione Jr., MD, and Sheila P. Gros, MT (ASCP ASCP American Society of Clinical Pathologists. ) SM

From the Departments of Internal Medicine and Infectious Diseases, Keesler Medical Center, Keesler Air Force Base Keesler Air Force Base is a United States Air Force base located in Biloxi, Mississippi. The base is home of the 81st Training Wing, and the base is responsible for training airmen who have just completed basic training as well as additional training they will need for upcoming , Biloxi, MS.

Reprint requests to David R. Allton, MD, Keesler Medical Center, 2003 Dixon Court, Godfrey, IL 62035. Email: David.Allton@keesler.af.mil

Accepted April 5, 2006.

RELATED ARTICLE: Key Points

* Vibrio fluvialis is often isolated from brackish waters of the coastal US and has been implicated in gastroenteritis in humans.

* Though most cases are mild, the diarrhea and acidosis experienced by this patient was very severe.

* Ingestion of raw or undercooked seafood is a risk factor for developing V fluvialis diarrhea.
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Title Annotation:Case Report; medical research; includes related article "Key Points"
Author:Gros, Sheila P.
Publication:Southern Medical Journal
Geographic Code:1U600
Date:Jul 1, 2006
Words:1743
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