International Journal of Science and Healthcare Research Vol.4; Issue: 3; July-Sept. 2019 Website: www.ijshr.com Original Research Article ISSN: 2455-7587 Leech Bite and Lymphangitis: An Unknown or Under-Reported Entity? Dr Arun Kumar M1, Dr Jebin Joseph2 1Surgical Specialist, 178 Military Hospital, Gangtok, Sikkim 2Surgical Specialist, INHS Sanjivani, Cochin, Kerala Corresponding Author: Dr Jebin Joseph ABSTRACT INTRODUCTION Lymphangitis refers to an Background: Lymphangitis following leech inflammation of the lymphatic ducts at the bite is an under-reported entity. Infectious cutaneous as well as subcutaneous tissue. [1] complications following medicinal leeching The plethora of etiologies include bacterial have been documented in literature with rates and fungal infections, secondary to varying between 2.4% to 20%. Infections are the most common cause of lymphangitis, even malignancies, allergen-related, bug-bites, in though a variety of other etiologies have also extremities following trauma and rarely due been cited in literature. to photodermatitis. The classical Methods: An observative study of five patients presentation is a rash associated with who was admitted to a peripheral surgical center sensitivity along the line of distribution of during nine months period from August 2018 to superficial lymphatic ducts. Enlargement of April 2019 was carried out and an analysis with lymph nodes, pruritus and discharge can respect to their clinical presentation, laboratory also be associated symptoms. Advanced parameters and treatment modality undertaken cases also present with features of cellulitis. has been documented. The most common cause of acute Results: Five patients who sustained leech bite lymphangitis is Streptococcal infection after followed by lymphangitis were included in the [2,3] study. The mean age of the patients was 35.6 skin damage. Non-infectious causes of years. The symptoms reported were lymphangitis are a poorly documented erythematous streak over the skin from the site entity. Though arthropod-borne cases of [4] of leech bite extending proximally, pain, fever superficial lymphangitis are documented, and lymphadenopathy. The laboratory leech bite as a cause of lymphangitis has parameters were normal except one who had been an under recognized entity. leukocytosis. The treatment modality advocated Leeches are segmented nd was intravenous or oral 2 generation hermaphrodite worms which live in fresh cephalosporins along with analgesics and water. Being multi-segmented, each supportive treatment. All of them were segment has different organs such as discharged after five days of antibiotic therapy ganglions and testicles. There are two when they were asymptomatic. Conclusion: Though lymphangitis following sucker parts which help the organism for creeping and adherence; the anterior one has leech bite is an under-reported entity, the cause [5] of the same in wild has to be studied in detail three jaws including many teeth. Usually with respect to isolation of the offending the warm parts of the hosts are preferred and pathogen. The same may prove beneficial in rhythmic contractions of the body of the areas of leech infestation where this entity must organism helps in sucking the blood of the be more common and a standard treatment host. [6] The usual feeding is about 40 modality as well as precautionary measures can minutes and a leech can digest up to 15 mL be formalized. of blood per feeding. Enzymes and microorganisms such as Aeromonas Keywords: Leech, Lymphangitis, Lower limb, Leeching, Vector International Journal of Science and Healthcare Research (www.ijshr.com) 151 Vol.4; Issue: 3; July-September 2019 Arun Kumar M et.al. Leech Bite and Lymphangitis: An Unknown or Under-Reported Entity? hydrophila and Pseudomonas hirudinia help period of nine months from August 2018 to in the digestive process. [7,8] April 2019 was done. The patients included Leeches have been used for were diagnosed based on history of leech medicinal purposes dating back to ancient bite prior to onset of symptoms and classical Egypt and beginning of civilization. The use presentation of reddish streaks over the skin of leech became so popular to the extent that extending proximally from the site of leech the species became endangered in Europe in bite, with or without lymphadenopathy. All the early 19th century. However, the leech five patients were admitted to the hospital had lost its popularity by the end of 19th and observed till their symptoms resolved. century as their therapeutic use fell out of The clinical and laboratory parameters, favor with physicians and patients. There treatment modality and length of stay were has been greater emphasis on emerging recorded. The clinical parameters included modern concepts of medicine. [9] Hirudo age of the patient, comorbidities if any, site medicinalis and Hirudo verbana are the two of leech bite, presenting symptoms and day species commonly used in medical field. [10] of onset following bite. The laboratory The recent rediscovery of medicinal leeches parameters included basic hematology and has been linked to maxillofacial and other biochemistry. The treatment undertaken was microsurgeons. In the present era, leeches either intravenous or oral antibiotics with have been used to aid salvage of supportive care. compromised venous engorged tissue, including free and pedicled flaps, amputated RESULTS [11-13] Table 1: Demographics digits, ears and nasal tips. Parameter n=5 % The costs of employing leech for Mean Age (in years) 35.6 - Mean delay in onset of symptoms (in days) 03 - medicinal therapy do come with Symptoms complications too. Literature cites the rate Erythematous streak over the skin 05 100 Localized reaction at the site of bite 02 40 of infection following leeching from 2.4% Pain 05 100 to 20%. [14,15] Aeromonas hydrophila and Fever 01 20 Signs Aeromonas veronii biovar sobria constitute Lymph node enlargement 03 60 the intestinal flora of leech, aiding in Average Length of hospital stay (in days) 05 - [16] digestion of RBCs. Infectious Table 2: Laboratory parameters complications have been documented in Parameter n=5 % literature following leeching, commonest Leucocytosis 1 20 Deranged Hepatic Profile 0 0 causative organism attributed being A Deranged Renal profile 0 0 hydrophila. [17] Other pathogens which have Deranged Blood Sugar 0 0 been isolated from wound infection Table 3: Treatment [18] following leech therapy are A sobria, Modality n=5 % Average duration (in days) [19] Intravenous 04 80 05 Serratia marscecens and Vibrio fluvialis. Antibiotic [20] Even though hemorrhage following Oral Antibiotic 01 20 05 leech bite is a known complication Analgesics 05 100 03 following leech bite (both medicinal and non- medicinal), cases of ecchymoses and DISCUSSION various skin lesions have also been During the study period of nine documented. [21] In this article we present a months (August 2018 to April 2019), five series of five cases of lymphangitis patients were admitted with lymphangitis following leech bite. following leech bite. The age of patients ranged from 28 to 54 years with mean age MATERIALS AND METHODS being 35.6 years. The average delay in days Observational study of five patients of onset of symptoms following leech bite who presented to the Surgical outpatient was three days. Four of them sustained department of a peripheral hospital over a leech bite along the lower limbs while one International Journal of Science and Healthcare Research (www.ijshr.com) 152 Vol.4; Issue: 3; July-September 2019 Arun Kumar M et.al. Leech Bite and Lymphangitis: An Unknown or Under-Reported Entity? had the bite over right upper limb. The Leech bite causing infectious commonest symptoms were erythematous complications have been documented in streak along the skin of the affected limb literature and the same have been attributed from the site of bite extending proximally commonly to A hydrophila in medicinal and pain (n=5). The other symptoms were leech therapy. [17] Cases have been fever (20%) and local reaction at the site of documented with leech bite causing leech bite (40%) (Table 1). palpable purpura and pruritus in Australian Lymphadenopathy of the draining inguinal Rainforest, [22] the inciting agents being lymphnodes of the affected side was found described as hirudin and histamine. in three patients. The laboratory parameters Terrestrial leeches (Haemadipsidae) have were more or less normal including also been identified as a vector of hematology and biochemistry except one trypanosomal infection. [23] In an patient who had leukocytosis (Total experimental study to identify the role of Leucocyte Count 12500/cmm) (Table 2). leeches as vectors for human and animal pathogens, 11 different species of bacteria, HIV and Hepatitis B virus were isolated from leeches. Protozoan parasites including Plasmodium have been found to survive inside the gut of leeches. The transmission in to humans are likely due to manipulation or squeezing the leeches while they are [24] sucking blood. Lymphangitis attributed to leech bites, though not documented in literature is likely due to bacterial pathogens surviving inside the leech gut. It can also be attributed to secondary infection of the skin damaged by leech bite where in Streptococcus infection is one of the most common cause Figure 1: Lymphangitis along Right Upper Limb of lymphangitis. Studies in leech endemic areas will be required to identify the exact All five patients were admitted and pathological mechanism in terms of managed