scholarly journals Bacillus cereus from refulgent corneal ulcer: A case report

2021 ◽  
Vol 7 (3) ◽  
pp. 215-218
Author(s):  
Supriya Meshram ◽  
Prashant Khartade
Keyword(s):  
Corneal Ulcer ◽  
Agar Medium ◽  
Acute Onset ◽  
Ocular Infection ◽  
Gram Positive ◽  
Eye Infections ◽  
Gram Staining ◽  
Antibiotic Susceptibility Test ◽  
Potential Pathogen ◽  
History Of

A Gram-positive spore forming bacilli, aerobe or facultative anaerobe is . It is ubiquitous which disperse in the environment. is a potential pathogen accountable for fulminant human infectious disease and hardly ever contribute to eye infections. A 35-year-old farmer came to ophthalmology OPD on February 2019, and the patient complained of acute onset left eye pain with diminution of vision. There was history of eye injury by the vegetation (thorn). There was presence of corneal ulcer. The patient was not immunocompromised.Corneal scrapping was collected from left eye. On Gram staining from corneal scrapping only two Gram positive bacilli, with occasional pus cell and fibrinous exudate was seen. Culture on blood agar medium it showed beta haemolytic, about 2-5 mm in diameter, big flat, irregular edges and greyish white colonies which were oval, slightly granular but not dry. On Mac -Conkey agar medium it showed non lactose fermenting, big flat, irregular colonies.From colonies Gram staining showed Gram positive bacilli with spore. They were motile, catalase positive, oxidase positive, reduced nitrate to nitrite and were resistant to penicillin. The identification was also confirmed by Vitek. This case highlights the importance of cultivation, detection and antibiotic susceptibility test rather than treating patients with ocular infection empirically.

The Biology of Bacteria

2019 ◽  
Author(s):  
Armine Sefton
Keyword(s):  
Cell Wall ◽  
Bacterial Infections ◽  
Genetic Material ◽  
Gram Positive ◽  
Dna And Rna ◽  
Gram Staining ◽  
Genetic Features ◽  
Potential Pathogen ◽  
A Cell ◽  
Micro Organisms

Bacterial infections and infestations of man can be caused by both microbes and non-microbes. Microbes include bacteria, viruses, fungi, and protozoa. Non-microbes include worms, insects, and arachnids. This chapter concentrates on the basic biology of bacteria. A pathogen is an organism that is able to cause disease in its host and the pathogenicity of any organism is its ability to produce disease. Microbes express their pathogenicity by means of their virulence. The virulence of any pathogen is determined by any of its structural, biochemical, or genetic features that enable it to cause disease in the host. The relationship between a host and a potential pathogen is non- static; the likelihood of any pathogen causing disease in its host depends both on the virulence of the pathogen and the degree of resistance or susceptibility of the host, due mainly to the effectiveness of the host’s defence mechanisms. Two of the main factors influencing a bacteria’s pathogenicity are its ability to invade and it ability to produce toxins—either exotoxins or endotoxins. Bacteria are unicellular prokaryotic micro-organisms, unlike human cells, which are eukaryotic. Fungi, protozoa, helminths, and arthropods are also eukaryotic. Prokaryotic organisms contain both DNA and RNA, but their genetic material exists unbound in the cytoplasm of the cell as, unlike eukaryotic cells, they have no nuclear membrane. Sometimes bacteria contain additional smaller circular DNA molecules, called plasmids. The main features of a bacterium are the cell wall, cytoplasm, and cell membrane. However, some bacteria have additional features such as spores, capsules, fimbriae (pili), and flagellae. The construction of the cell wall is different in different bacteria, but all cell walls contain peptidoglycan. The structure of the cell wall determines the staining characteristics when stained using the Gram stain. Although its first use was over a hundred and fifty years ago, is still the standard method for primary classification of bacteria. Occasionally, bacteria do not have a cell wall. Gram staining of a fixed smear of bacteria is used to separate bacteria into Gram positive or Gram negative, and also to demonstrate their shape. Bacteria with a thick peptidoglycan layer but with no outer membrane stain purple and are called Gram positive.

Helcococcus kunzii, a skin-colonising microorganism with pathogenic capacity: a case of polymicrobial intracranial empyema

2021 ◽  
Vol 14 (11) ◽  
pp. e244600
Author(s):  
Margarida Mouro ◽  
João Frade ◽  
Catarina Chaves ◽  
Jorge Velez
Keyword(s):  
Oral Route ◽  
Human Infection ◽  
Gram Positive ◽  
Gram Negative ◽  
Negative Bacillus ◽  
The Third ◽  
Gram Staining ◽  
Intravenous Antibiotics ◽  
Gram Negative Bacillus ◽  
History Of

Helcococcus kunzii is a Gram-positive anaerobic facultative coccus that colonises the skin. Human infection is rare, with very few cases being described in the literature. The authors present the case of a 17-year-old man, with a history of cholesteatoma, diagnosed with mastoiditis complicated by intracranial empyema. After urgent surgical drainage, Gram staining revealed a Gram-negative bacillus and a Gram-positive coccus. The latter exhibited fastidious growth, presented as small grey colonies in blood agar, and was afterwards identified as H. kunzii. The patient was started on intravenous antibiotics, switched to oral route after 8 weeks and fully recovered. To the best of our knowledge, this is the third case of an intracranial infection in which H. kunzii is involved, two of them occurring in patients with cholesteatoma.

scholarly journals Identifikasi Bakteri dengan Pewarnaan Gram pada Penderita Infeksi Mata Luar di Rumah Sakit Mata Kota Manado

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Trijeri Bulele ◽  
Fredine E. S. Rares ◽  
John Porotu'o
Keyword(s):  
Bacterial Culture ◽  
Resistant Bacteria ◽  
Ocular Infection ◽  
Gram Positive ◽  
Cross Sectional ◽  
Antibiotic Resistant ◽  
Gram Positive Bacteria ◽  
Gram Staining ◽  
Ocular Infections ◽  
Cross Sectional Design

Abstract: Bacteria are the main cause of external ocular infection worldwide. Therefore, it is necessary to improve the treatment according to the cause of the infection in order to prevent the emergence of antibiotic-resistant bacteria. This study was aimed to identify the bacteria by using the Gram staining method in patients with external ocular infections. This was a descriptive study with a cross sectional design using bacterial culture of purulent secretion obtained from conjunctival and palpebral swabs in patients with external ocular infections at Manado Eye Hospital Manado. Based on the types of external ocular infections, conjunctivitis was the leading cause (50%), followed by keratitis (30%), blepharitis (13.3%), and keratoconjunctivitis (6.7%). Females were more frequeny than males (63.3% vs 36.7%). The youngest age in this study was 9 years and the oldest was 81 years, meanwhile, the most common age group was adults >40 years. The most common type of occupation was housewives. The results of bacterial culture were as follows: 19 samples showed no growth; 6 samples (54.5%) of Gram-positive bacteria in the form of staphylococcus, coccus, diplococcus; 3 samples (27.3%) of Gram-negative bacteria in the form of bacillus; and 2 samples (18.2%) of mixed Gram positive and negative bacteria in the form of bacillus and coccus. Conclusion: Gram-positive bacterium in the form of coccus is the most common cause of external ocular infection.Keywords: external ocular infection, bacteria, Gram staining Abstrak: Bakteri ialah penyebab utama infeksi mata luar di seluruh dunia. Pengobatan yang sesuai dengan penyebab infeksi dapat mencegah munculnya bakteri yang resistan terhadap antibiotik. Penelitian ini bertujuan untuk mengidentifikasi bakteri dengan menggunakan metode pewarnaan Gram pada penderita infeksi mata luar. Jenis penelitian ialah deskriptif dengan desain potong lintang menggunakan kultur bakteri hasil swab sekret purulen dari konjungtiva dan palpebra pada penderita infeksi mata luar di Rumah Sakit Mata Kota Manado. Hasil penelitian mendapatkan bahwa jenis infeksi mata luar terbanyak ialah konjungtivitis (50%), diikuti oleh keratitis (30%), blefaritis (13,3%), dan keratokonjungtivitis (6,7%). Perempuan lebih banyak (63,3%) menderita infeksi mata luar dibandingkan laki-laki (36,7%). Usia termuda ialah 9 tahun dan tertua 81 tahun. Kelompok usia terbanyak ialah dewasa >40 tahun. Jenis pekerjaan ibu rumah tangga yang terbanyak dibandingkan dengan pekerjaan lainnya. Hasil proses kultur mendapatkan 19 sampel tidak menunjukan adanya pertumbuhan, 6 sampel (54,5%) bakteri Gram positif dengan bentuk staphylococcus, coccus, diplococcus, 3 sampel (27,3%) bakteri Gram negatif dengan bentuk bacillus, dan 2 sampel (18.2%) campuran bakteri Gram positif dan negatif dengan bentuk bacillus dan coccus. Simpulan: Bakteri Gram positif berbentuk coccus yang paling sering menjadi penyebab infeksi mata luar.Kata kunci: infeksi mata luar, bakteri, pewarnaan Gram

scholarly journals Antibiogram Pattern of Oral Microflora in Periodontic Children of Age Group 6 to 12 Years: A Clinicomicrobiological Study

2013 ◽  
Vol 14 (4) ◽  
pp. 595-600
Author(s):  
KA Abdul Hafiz ◽  
N Fysal ◽  
Santhosh Jose ◽  
Reena Kulshrestha ◽  
Dimple Arora ◽  
...  
Keyword(s):  
Antibiotic Sensitivity ◽  
Age Group ◽  
Gram Positive ◽  
Normal Children ◽  
Gram Staining ◽  
Oral Microflora ◽  
Antibiotic Susceptibility Test ◽  
Facultative Anaerobic ◽  
Group 6 ◽  
Antibiotic Sensitivity Test

ABSTRACT Aim The study was carried out to see the diversity of oral microflora and its antibiotic sensitivity test in children of age group 6 to 12 years was carried. Materials and methods Total 50 patients of age group 6 to 12 years were analyzed for their oral microflora and then checked for the antibiotic susceptibility test. The samples that were collected were incubated at 37°C for 48 hours. Once dispersed samples were taken and Gram staining was done, also they were spread on to a number of freshly prepared agar plates and incubated to allow cells to form microbial colony. Results The result showed microflora common in all types, Gram-positive facultative anaerobic rods and cocci. In normal children Gram-positive facultative anaerobic and fermenting cocci were predominant where as in children with caries growth of microbiota that were Gram-negative and positive, capnophilic, motile and anaerobic rods and cocci belonging to members of genera S. mutans and A. actinomycetemcomitans was seen. Conclusion By the present study it has been concluded that the number of bacteria determined by microscopic counts was twice as high in caries patients as in healthy sites, and also recommended that amoxicillin, ampicillin and amikacin are the most effective antibacterial drugs for the treatment of dental caries. How to cite this article Fysal N, Jose S, Kulshrestha R, Arora D, Abdul Hafiz KA, Vasudevan S. Antibiogram Pattern of Oral Microflora in Periodontic Children of Age Group 6 to 12 Years: A Clinicomicrobiological Study. J Contemp Dent Pract 2013; 14(4):595-600.

Dual stain kit for the microscopic gram classification of ocular infection bacteria

1993 ◽  
Vol 51 ◽  
pp. 248-249
Author(s):  
Jacob S. Hanker ◽  
Dale N. Holdren ◽  
Kenneth L. Cohen ◽  
Beverly L. Giammara
Keyword(s):  
Contact Lenses ◽  
Ocular Infection ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Gram Staining ◽  
Ocular Infections ◽  
Different Types ◽  
Culture Positive ◽  
Increased Susceptibility

Keratitis and conjunctivitis (infections of the cornea or conjunctiva) are ocular infections caused by various bacteria, fungi, viruses or parasites; bacteria, however, are usually prominent. Systemic conditions such as alcoholism, diabetes, debilitating disease, AIDS and immunosuppressive therapy can lead to increased susceptibility but trauma and contact lens use are very important factors. Gram-negative bacteria are most frequently cultured in these situations and Pseudomonas aeruginosa is most usually isolated from culture-positive ulcers of patients using contact lenses. Smears for staining can be obtained with a special swab or spatula and Gram staining frequently guides choice of a therapeutic rinse prior to the report of the culture results upon which specific antibiotic therapy is based. In some cases staining of the direct smear may be diagnostic in situations where the culture will not grow. In these cases different types of stains occasionally assist in guiding therapy.

Omental Infarction: A Case Treated with Laparoscopic Surgery

2019 ◽  
pp. 1-3
Author(s):  
Bertrand Ng ◽  
Arafat Yasser
Keyword(s):  
Diabetes Mellitus ◽  
Laparoscopic Surgery ◽  
Hospital Stay ◽  
Acute Cholecystitis ◽  
Inflammatory Markers ◽  
Acute Onset ◽  
Laparoscopy Surgery ◽  
History Of ◽  
Background History ◽  
The Right

Omental infarct is a rare cause of an acute abdomen that arises from an interruption of blood supply to the omentum. Here, we present a case of omental infarct in a 67-year-old gentleman with background history of diabetes mellitus who present unusually with a severe acute onset right hypochondrium pain. Examination revealed that he was tender to touch at the right and was having localized guarding. His inflammatory markers were normal. He was successfully treated with laparoscopy surgery and he was subsequently discharged the following day. Omental infarct cases with right hypochondrium pain can sometimes mimicked acute cholecystitis and management includes laparoscopic surgery which can hasten symptoms resolution and reduces hospital stay, however recommendation for surgery has to be balanced with anesthetics risk and complication of the surgery itself.

Young Male with Bilateral ICA Dissection: Beyond CADISS Trial

2021 ◽  
pp. 251660852098428
Author(s):  
Vikas Bhatia ◽  
Chirag Jain ◽  
Sucharita Ray ◽  
jay Kumar
Keyword(s):  
Management Strategies ◽  
Young Male ◽  
Acute Onset ◽  
The Body ◽  
Artery Dissection ◽  
Cervical Artery Dissection ◽  
Stroke Study ◽  
History Of

Objective: To report a case of young male with stroke and bilateral internal carotid artery (ICA) dissection. Background: Cervical Artery Dissection in Stroke Study trial has provided some insight on management of patients with ICA dissection. However, there is a need to modify the management strategies as per specific clinical scenario. Design/Methods: Case report and literature review. Results: A 45-year-old male presented with 1 month old history of acute onset numbness of right half of the body with slurring of speech. Computed tomography angiography showed complete occlusion of left cervical ICA just beyond origin with presence of fusiform dilatation and spiral flap in right extracranial cervical ICA. The patient was started on antiplatelets and taken for endovascular procedure using 2-mesh-based carotid stents. Patient was discharged after 3 days on antiplatelet therapy. At 1-year follow-up, there were no fresh symptoms. Conclusion: This case emphasizes the role of successful endovascular management of carotid dissection in a young male. These clinical situations may not be fully represented in trials, and a case-based approach is required.

scholarly journals A Rare Case of Spontaneous Arachnoid Cyst Rupture Presenting as Right Hemiplegia and Expressive Aphasia in a Pediatric Patient

Children ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 78
Author(s):  
Anne Bryden ◽  
Natalie Majors ◽  
Vinay Puri ◽  
Thomas Moriarty
Keyword(s):  
Cognitive Processing ◽  
Arachnoid Cyst ◽  
Memory Loss ◽  
Acute Onset ◽  
Word Finding ◽  
Outpatient Visits ◽  
The Family ◽  
History Of ◽  
Cyst Rupture ◽  
The Brain

This study examines an 11-year-old boy with a known history of a large previously asymptomatic arachnoid cyst (AC) presenting with acute onset of right facial droop, hemiplegia, and expressive aphasia. Shortly after arrival to the emergency department, the patient exhibited complete resolution of right-sided hemiplegia but developed headache and had persistent word-finding difficulties. Prior to symptom onset while in class at school, there was an absence of reported jerking movements, headache, photophobia, fever, or trauma. At the time of neurology consultation, the physical exam showed mildly delayed cognitive processing but was otherwise unremarkable. The patient underwent MRI scanning of the brain, which revealed left convexity subdural hematohygroma and perirolandic cortex edema resulting from ruptured left frontoparietal AC. He was evaluated by neurosurgery and managed expectantly. He recovered uneventfully and was discharged two days after presentation remaining asymptomatic on subsequent outpatient visits. The family express concerns regarding increased anxiety and mild memory loss since hospitalization.

scholarly journals Spontaneous Uterine Rupture in a Preterm Pregnancy following Myomectomy

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Claire Sutton ◽  
Prue Standen ◽  
Jade Acton ◽  
Christopher Griffin
Keyword(s):  
Abdominal Pain ◽  
Caesarean Section ◽  
Uterine Rupture ◽  
Good Condition ◽  
Acute Onset ◽  
Uterine Wall ◽  
Unusual Presentation ◽  
Postoperative Course ◽  
Spontaneous Uterine Rupture ◽  
History Of

A 44-year-old nulliparous woman was transferred to a tertiary obstetric hospital for investigation of acute onset abdominal pain. She was at gestation of 32 weeks and 2 days with a history of previous laparoscopic fundal myomectomy. An initial bedside ultrasound demonstrated oligohydramnios. Following an episode of increased pain early the following morning, a formal ultrasound diagnosed a uterine rupture with the fetal arm extending through a uterine rent. An uncomplicated classical caesarean section was performed and the neonate was delivered in good condition but with a bruised and oedematous right arm. The neonate was transferred to the Special Care Nursery for neonatal care. The patient had an uncomplicated postoperative course and was discharged home three days following delivery. This is an unusual presentation of uterine rupture following myomectomy where the fetal arm had protruded through the uterine wall.

scholarly journals Ovarian Torsion after Hysterectomy: Case Report and Concise Review of the Reported Cases

2018 ◽  
Vol 2018 ◽  
pp. 1-3
Author(s):  
Demetrio Larraín ◽  
Andrés Casanova ◽  
Iván Rojas
Keyword(s):  
Differential Diagnosis ◽  
Case Report ◽  
Literature Review ◽  
Rare Event ◽  
Laparoscopic Hysterectomy ◽  
Acute Onset ◽  
Ovarian Torsion ◽  
Adnexal Torsion ◽  
Concise Review ◽  
History Of

Ovarian torsion after hysterectomy is a rare event. The diagnosis of ovarian torsion is challenging because symptoms are nonspecific. We present a case of ovarian torsion 2 years after laparoscopic hysterectomy (LH). Furthermore, we performed a literature review about ovarian torsion after hysterectomy. This case shows that, in cases of acute onset pelvic pain in patients with history of hysterectomy, the adnexal torsion must be kept in mind in the differential diagnosis, especially in those women who had undergone LH.

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