Several articles have been written about hyper inflated sinus structures. Never before, however, a complete overview of all possible pressure induced variations of sinus anatomy have been published. The aim of this study was to make an inventory of the most common CT signs of hyper inflated paranasal sinus structures. During a period of 2 years all CT-scans of the paranasal sinuses made in an ENT-department were studied and the most typical shapes of hyper inflated sinus structures were recorded.
The authors documented 9 different anomalies of the anterior paranasal sinus complex (frontal sinus, frontal and supra-orbital recess and anterior ethmoid), 8 of the ethmoid and 1 of the sphenoidal sinus. These hyper inflated paranasal sinus structures can only be generated by high positive intranasal pressures. The nose blowing manoeuvre is the only manoeuvre that generates extremely high pressures and as such it might be the driving force in the generation of these hyper inflated paranasal structures and consequently play a role in the pathophysiology of chronic sinusitis.
Pneumatisation of the sinuses starts at birth and is a lifelong process. Sometimes, however, pneumatisation can be extreme and will result in facial deformities. Pneumosinus dilatans, is such a condition, characterized by an abnormal dilatation of a paranasal sinus cavity, containing air only. Most reports describe pneumosinus dilatans of the frontal sinus, but also other sinuses can show this phenomenon: maxillary sinus and in one case a unilateral pneumosinus dilatans of nearly all sinuses (maxillary, ethmoid, and sphenoid sinus) was described.
Recently Kalavagunta et al., described a less dramatic expansion of the maxillary sinus and named it “Extensive Maxillary Sinus Pneumatisation” (EMSP). They were surprised to see that EMSP has received little attention in the literature. Neuner et al., described 9 different atypical pneumatisation abnormalities of the paranasal sinus anatomy.
Most of deformities of the sinus pneumatisation are growth deformities of the thick bones that make up the frame of the sinuses. Only a few articles, deal with specific deformities of thinner bone structures such as “wavy orbital floor” and “frontal cells”. Never before, however, an article was published that studied all possible deformities due to increased pressures and tried to make a classification. So the aim of this study was to make an inventory of the most obvious pressures related deformities that can be seen on CT-scans of patients with rhinosinusitis.
Reconstruction of the eyelids, especially medial canthal area, is one of the greatest challenges faced by the oculoplastic, head and neck surgeons. A patient with a medial canthal defect, following oncological resection involving the medial canthus, upper and lower eyelids, and nose is presented. The defect was reconstructed using a transnasal bilobed flap. The transnasal bilobed flap is a simple and effective for medial canthal reconstruction and provides in one-time reconstruction and preserves the local anatomy.
Leiomyosarcoma is a malignant smooth-muscle tumor that has a predilection for the gastrointestinal and female genital tract and is a rare entity in the paranasal sinuses. It is locally fast-spreading and highly aggressive, and the prognosis is poor. We report a rare case of leiomyosarcoma of the maxilla in a patient who sought treatment for maxillary swelling, nasal obstruction with no epistaxis, orbital involvement or cervical lymph node metastasis. The patient underwent total maxillectomy followed by radiotherapy. At present after 5 years of follow up, he is symptom free with no recurrence.
Introduction: Bilateral vestibular areflexia is a rare pathological entity whose most frequent etiology is drug ototoxicity. We report an unusual case of bilateral vestibular areflexia complicating acute otitis media through which we raise the difficulties of diagnosis and therapeutic management of this pathology.
Case Report: 57-year-old Tunisian patient who consults for a loss balance associated with earache and hearing loss. Initial clinical examination revealed bilateral acute otitis media with a right harmonious vestibular syndrome and normal neurological examination. The diagnosis of post-otitis labyrinthitis was retained. The patient was put on antibiotics and corticosteroids. The evolution was marked by the persistence of instability in darkness and oscillopsia; vestibular explorations concluded with bilateral vestibular areflexia. MRI concluded to posterior labyrinthitis and eliminated central neurological involvement. The patient was kept under betahistine. The tympanic cavity was drained by a tympanic aerator on both sides. Vestibular rehabilitation was started quickly. Gradual improvement was obtained of autonomy with persistent oscillopsia.
Conclusion: Bilateral vestibular areflexia poses diagnostic problems based on anamnestic and clinical arguments and vestibular explorations. The therapeutic management is delicate, vestibular reeducation occupies a primordial place.
Significance: Due to the limited number of reported cases little is known about the characteristics of unilateral retinitis pigmentosa. Information from additional case reports can aid in learning more about the condition. We report a case of retinitis pigmentosa that has remained unilateral for 28 years and review the available literature.
Case Report: A 40-year-old Caucasian female presented for an opinion as to the cause of her vision loss. Fundus autofluorescence demonstrated hypoautofluorescence in the midperipheral retina and a hyperautofluorescent ring surrounding the area of preserved photoreceptors in the macula. Optical coherence tomography showed disruption of the ellipsoid zone and the external limiting membrane. Electroretinography (ERG) showed severely reduced rod and cone function monocularly.
Discussion: Retinitis pigmentosa is typically bilateral and symmetric. Unilateral retinitis pigmentosa is a rare condition that manifests with only one eye having changes typical of retinitis pigmentosa. The unaffected eye can have no signs of retinitis pigmentosa and must have a normal ERG after long-term follow up. It is critical to rule out inflammatory, traumatic, toxic, and cancer associated retinopathy that can present with retinal pigmentary changes. Unilateral retinitis pigmentosa generally remains unilateral, but long-term follow up with ERG is important. There is currently no treatment that can stop the process of retinitis pigmentosa, but gene therapy shows promise.
The expansion of social media platforms has given birth to a specific professional category in charge of « sanitizing » social media and keeping it free of “inappropriate” content. These content moderators, as a result of being constantly exposed to potentially traumatic images, may be at risk of developing stress-related symptoms. Here we present the case of a social media content moderator who experienced intrusive images, anxiety symptoms and insomnia.
Literature about this subject is very scarce, while the need is increasing to assess this phenomenon and set up strategies of monitoring, counseling and treating this category of workers.
Key points
The expansion of social media platforms has given birth to a specific professional category: content moderators.
As a result of being constantly exposed to potentially traumatic images, content moderators may be at risk of developing stress-related symptoms.
The need is increasing to assess this phenomenon and set up strategies of monitoring, counseling and treating this category of workers.
Osteoma is a benign osteogenic tumor arising from the proliferation of cancellous or compact bone. In the facial bones, both central and peripheral osteomas have been described in the literature. Peripheral type of osteoma is the most common variant in the mandible, which occurs on the cortical bone surface. We present a case of a fourteen year old boy who had swelling on right and left parasymphyseal region. Radiographs revealed radiopacity having onion-peel appearance and histopathology gave the final diagnosis of osteoma. Periosteal reaction giving rise to onion peel appearance on the radiograph has been reported in Ewing sarcoma, Garre’s osteomyelitis and infantile cortical hyperostosis in the literature but our case shows that similar appearance can be there in osteoma as well.
Taurodontism is a rare dental anomaly presented with an aberration of teeth that lacks the constriction at the level of the cemento-enamel junction (CEJ). It is characterized by elongated pulp chambers and apical displacement of bifurcation or trifurcation of the roots, forming a rectangular shape. Whilst, it appears most frequently as an isolated anomaly, its association with several syndromes and abnormalities has also been reported in the literature. Although permanent molars are most commonly affected, this anomaly could also be seen in deciduous dentition, unilaterally or bilaterally, and in any combination of teeth or quadrants. These morphological anomalies pose various challenges to the dentist during their endodontic treatment. Modern diagnostic tools such as Cone beam computed tomography (CBCT), loupes and Dental operating microscopes (DOM) help in achieving better treatment outcome in such cases. The presented article elaborates diagnosis and successful management of 2 rare cases of taurodontism in permanent molars.
Background: A cracked tooth may be challenging for dentists because it may present with varied intensities, may be asymptomatic, and may still not be clinically visible. The transilumination method can facilitate diagnosis and ensure appropriate treatment in such cases. The aim of the present article was to report a clinical case of an anterior cracked tooth with a nonesthetic class IV restoration.
Clinical considerations: A 22-year-old male patient with chief complaint of esthetics of upper front tooth reported a history of dental trauma. Transilumination with a dental curing light unit was used to examine the region. The tooth 11 was diagnosed with several cracks and a nonesthetic class IV restoration. For repair, the universal adhesive system Scotchbond Universal was applied without previous acid etching, followed by the application of Filtek Z350 of color type B2 (for body) above the old restoration, taking care to slightly overlap the fracture line with the composite and to not extend the composite until the incisal margin. Subsequently, a thin layer of Filtek Z350 of color type B2 (for enamel) was applied over the bevel until the incisal margin, and the tooth shape was carved.
Conclusion: This case report demonstrates simplified diagnosis of an anterior cracked tooth with transilumination; following repair, the esthetic quality of the restoration was considered satisfactory and approved by the patient.
The neuromuscular disorders may be hereditary, autoimmune, and in some cases with unknown etiology. These diseases are characterized by progressive course, muscle weakness, and in an advanced stage with binding the patient to a wheelchair. This group includes a number of diseases, but from the dental perspective, the most interesting are muscular dystrophy, multiple sclerosis and myasthenia gravis. Neuromuscular disorders affect the oral cavity and the impact on oral hygiene procedures should be monitored with great attention.
Successful implant restoration is depending on an adequate surgical and prosthetic protocol. In the last few years an increase in Peri-Implantitis has been attributed, in part, to the excess cement left around the implant collar and threads, leading in many cases to bone loss and even the complete failure of the implant treatment [1-5].
This article will attempt: 1. To describe a proper cementation protocol for cement-retained implant restorations to reduce cement induced implant failures, and 2. To review the alternative implant restorative options to cement-retained crowns such as screw-retained restorations, screwless and cementless implant restorations, screw-retained-cemented implant crown, angulated screw channel restorations, the lingual locking screw-retained restorations and the multi-unit abutment restorations.
Background and Purpose: Transverse myelitis (TM) is a rare neurological diagnosis found in 1-4 per million people. Rehabilitation is recommended secondary to steroid treatment. There is limited clinical research on physical therapy (PT) for TM. The purpose of this case report is to present PT examination and management strategies for a patient with TM.
Case Description: A 25-year-old female patient diagnosed with TM was referred to PT. She presented foot drop causing ataxic gait, decreased sensation in bilateral lower extremities, significant fatigue, and low back pain. The patient required significant rest time between all tests and measures due to severely increased fatigue. PT plan of care was focused on therapeutic exercises per patient tolerance, passive range of motion (ROM) administered by the therapist, and gait training when activity tolerance was increased.
Outcomes: The patient was able to tolerate bouts of exercise as prescribed through home exercise program. She responded very well to passive ROM treatment during breaks between exercises to maintain ROM and decrease rigidity. Active ROM exercise was used to build activity tolerance while being mindful of limited ability due to fatigue. Upon increased activity tolerance, the patient was able to tolerate gait training with multiple breaks and maintain corrected gait when addressed during treatment.
Discussion: PT intervention was helpful for this patient with TM. Breaking down functional activities based on patient tolerance is important when treating people with TM. More experimental research is needed to support the benefits of PT for TM.
Fibrous dysplasia is an osteolytic lesion in which bone is replaced by an instable fibrous osseous tissue. The aim of this case report is to highlight dental rehabilitation (bone grafts to allow dental implant) on patients suffering of this condition.
A 39-year-old female with a hard-traumatic event in childhood desired a dental implant rehabilitation on her teeth 19 and 30 after an orthodontic alignment. A Cone-Beam Computed Tomography (CBCT) was performed showing a massive radiopaque lesion of the anterior mandible. The bone grafts and dental implants were successfully managed. A non-invasive treatment with regular follow up was chosen for this case. No evolution was noticed twenty-four month later at the follow up CBCT.
Gingival recession is defined as apical migration of the gingival epithelium leading to the exposure of root surface. There are many surgical procedures for treating gingival recessions and the main goal is to cover the exposed tooth surface by soft tissue augmentation. The surgical techniques performed for root coverage has their own advantages and limitations. The surgical technique used for managing the gingival recession is the major factor that determines the outcome and the long term result of the procedure. The most common surgical technique in treating the isolated gingival recession is the lateral pedicle graft and the surgical technique with highest percentage of root coverage is the connective tissue graft. This case report deals with the management of an isolated gingival recession with lateral pedicle and connective tissue graft. The outcome of the procedure was excellent having complete root coverage.
he presence of bifid mandibu¬lar canals is an unusual but not rare occurrence. The mandibular canal containing the inferior alveolar artery, vein, and nerve, originates from the mandibular foramen and terminates at mental foramen [1-4]. In radiology, mandibular canal’s appearance has been described as “a radiolucent dark ribbon between two white lines”[5]. White and Pharoah defined it as “dark linear shadow with thin radiopaque superior and inferior borders cast by the lamella of bone that bounds the canal” [6]. Understanding of its anatomic variations is very important due to its clinical implications in various oral and maxillofacial treatments like removal of wisdom teeth [7], mandibular implant placement [8], in bilateral sagittal split osteotomy procedures and during fixation of mandibular fractures. Presence of bifid or multiple mandibular canals forces the clinician to change the treatment plan. Ignoring this variation can cause several complications intra or postoperatively or even result in failure of treatment. For instance a bifid canal if ignored during surgical removal of third molar or dental implant placement can cause prolonged pain even after administering local anesthesia and also severe bleeding if the accessory canal is encroached [2].
Bifid mandibular canals may originate from the mandibular foramen independently or might bifurcate from a single canal during its course inside the mandible [8]. Bifid mandibular canals have been by classified by multiple authors according to anatomical location and configuration, on panoramic radiographs and computerized tomography. According to Carter and Keen [1], inferior alveolar nerve can be arranged as- Type I: single large bony canal, Type II: canal is lower down in the mandible and Type III: canal separates posteriorly into two large branches.
Nortje, et al. [9] gave patterns of duplication as- Type I: duplicate canals from a single mandibular foramen which can be of same size/ lower canal smaller/ upper canal smaller. Type II: short upper canal up to the second molar areas. Type III: two canals from separate foramina, joining at molar area and Type IV: supplemental canals joining the main canals in the retromolar areas. This report describes a case of a bilateral Bifid Mandibular Canal suspected by a panoramic radiograph and confirmed by a CBCT prior to a dental treatment.
Ginseng extracts are often used as adaptogen to improve mental performances and well being, helping to overcome stress. Thus, in our times a lot of ginseng extracts are continuously produced and sold into commercial channels. Both Asian and Korean red ginseng (Panax ginseng) and American ginseng (Panax quinquefolius) are the most extensively used and researched. Both Panax ginseng and Panax quinquefolium contain different types of saponins, also known as ginsenosides, which are the substances that give ginseng medicinal properties. Human and animal studies showed that ginseng extracts can also have hypoglycemic effects. The mechanisms by which ginseng reduces blood glucose levels are unclear; some mechanisms have been proposed to explain its hypoglycemic effect, especially modulating effects on insulin sensitization and/or insulin secretion and regulating actions on digestion and intestinal absorption. We describe a case of hypoglycemia by ginseng in type 2 diabetic patient treated with oral hypoglycemic agents. Although, in order to provide better assessments of a sure anti-diabetic efficacy of ginseng, larger and longer randomized controlled clinical trials will be required, in our case we think that we have enough evidence to believe that the cause of hypoglycemia was ginseng. Obviously, this report should not be taken as a proof of the hypoglycemic effect of ginseng, nor it wants to be a suggestion to use ginseng in the treatment of diabetes; instead, it wants to be an alert for patients and clinicians to avoid hypoglycemia in daily clinical practice.
Cement-retained implant-supported restorations has been preferred by many clinicians due to its ease of production, low cost and similarity to dental supported restorations [1]. In the literature, many complications caused by residual cement, ranging from acute severe bone resorption to implant loss, have been published as a case report/ series [2-7]. In another study [8], residual cement was seen in 81% of implant cases that are clinically identified as peri- implantitis. Hence it has been indicated that a strong relationship has been determined between residual cement and development of chronic peri-implant infection [9].
The patient with an oncological disease presents a series of discomforts related to the psychological sphere such as depression, pain, sense of usefulness, anger, but also inconveniences related to food sphere. Neoplastic disease interferes with eating behaviour for several reasons. The communication of the diagnosis can create a state of anorexia as a result of the shock; certain tumours of the gastrointestinal tract-gold (mouth, esophagus, stomach, colon and rectum, but also pancreas and liver) are directly responsible for the possible alteration of food intake; alteration in eating behaviour may be secondary to the main therapeutic treatments. The link between food and cancer is not only evident in case of disease, but also in case of prevention, in fact a growing number of studies indicates more an more clearly the close correlation between a healthy diet and prevention of oncological diseases although at present time it is not still possible to give definitive results. The diagnosis of a person is like a melody in which some notes are repeated but their combination is almost infinite, because each person has different eating needs, as well as different psychological needs, and the starting point for a good professional must necessarily be a ‘customized’ diagnosis. This ‘diagnosis of well-being’, tailor-made for each person, involves professionals in both the food and psychological and behavioural sectors, since the individual needs have to be evaluated globally.
Finally, the professionals of human behaviour in food consumption, and the chemical and science processing experts, have the duty not to limit themselves to a single refusal against the use of certain foods, but framing the phenomenon in a wider perspective and, as experts of human health, to propose alternatives.
Stability of esthetic implant buccal soft and hard tissue contour using freeze-dried bone allograft in early implant placement with contour augmentation.
Oxygen therapy is the main supportive treatment in hypoxemic respiratory failure and has traditionally been delivered using low and high flow devices. However, the maximal flow rates that these devices can deliver are limited because of the insufficient heat and humidity provided to the gas administered. Low flow devices such as the nasal cannula, conventional face mask and reservoir bag deliver a flow rate of up to 15 L/min by administering more variable oxygen fractions (FiO2), depending on the patient’s respiratory pattern, peak inspiratory flow and characteristics of the devices. Conventional high flow devices, such as venturi type masks, utilize a constant flow of oxygen through precisely sized ports, entraining the ambient air, using the Bernoulli principle, providing a more constant inspired oxygen fraction. However, they are less tolerated than nasal cannulas because they are less comfortable and the insufficient humidification and heating of the gas delivered [1].
In the last two decades, new devices have been developed to administer high humidified and heated flow through a nasal cannula (HFNC) that also allows the delivery of oxygen with a known FiO2 up to 100%. In the literature, this technique has also been called mini CPAP (continuous positive airway pressure), transnasal insufflation, high nasal flow ventilation, high flow oxygen therapy, and high flow nasal cannula oxygen therapy [2].
It is considered that high flow nasal cannula has certain benefits compared to those of oxygen therapy previously detailed. HFNC manages a flow of more than 30 L/min, which is able to surpass the peak inspiratory flow of the patient, being able to reach values between 60-80 L/min depending on the flow used. The gas source, which may be delivered by an air/oxygen blender, fans, or a flow generating turbine, is connected by an active humidifier to a nasal cannula and the FiO2 can be adjusted independently of the flow.
From a clinical point of view, there is some confusion between venturi and high flow nasal cannula devices. In the literature, both have been considered as high flow oxygen therapy devices. In our opinion this is not appropriate because the high nasal cannula flow is much more than a simple system for administering oxygen therapy [3]. Venturi-type masks provide the patient with a gas mixture with a controlled FiO2, but do not exert additional benefits on the ventilator mechanics of the patient. Nevertheless, HFNC allows the delivery of a high flow, which can also add oxygen therapy, providing a series of physiological effects that imply an active treatment to respiratory failure.
Effects related to HFNC include the following:
1. Delivery of higher and more stable FiO2 values, because the flow delivered is greater than the patient’s inspiratory demand.
2. The anatomical dead space decreases by washing the nasopharynx, consequently increases alveolar ventilation. This improves the thoracoabdominal synchrony.
3. Respiratory work decreases because it acts as a mechanical stent in the airway and markedly attenuates inspiratory resistance.
4. The gas administered is warmed and humidified, improving mucociliar clearance, reducing the risk of atelectasis, improving ventilation perfusion and oxygenation ratio.
5. There is a CPAP-like effect. The dynamic positive espiratory airway pressure generated by HFNC reaches a value between 6-8cmH2o depending on the flow and the size of the cannula. This positive pressure distends the lungs and ensures their recruitment.
6. Pulmonary end-expiratory volume is higher with HFCN than with conventional high-flow oxygen therapy.
7. In addition, the technique is considered easy and simple for the medical staff and nurses, and can be used in different areas (emergency, hospitalization, critical care unit, weaning centers) and even at home [4].
Currently available evidence has demonstrated that HFNC therapy is an alternative for the treatment of acute hypoxemic respiratory failure, hypercapnic respiratory failure, acute heart failure, as rescue therapy preventive therapy in post-extubation respiratory failure and in specific conditions such as bronchoscopy [5].
We believe that high-flow nasal cannula treatment should not be confused with high flow oxygen therapy of venturi masks. According to detailed mechanisms of action, HFNC is not limited to being only an oxygen therapy system but also behaves as a true treatment that can be used in different clinical scenarios, generating physiological benefits that result in the reduction of respiratory work. In addition, in venturi type masks, the air is not humidified and complications such as dryness and nasal pain are common, generating a poor tolerance to oxygen therapy. The benefits of proper humidification and heating of the gas delivered with HFNC therapy allow better comfort and tolerance of the patient with easy adherence to the treatment. All this contributes to making HFNC be considered a technique of choice in patients with hypoxemic respiratory failure. The growth in its use associated with easy acceptance for patients and the expansion in its application show us that HFNC is a promising therapy.
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