A comparative study of clinical outcome following topical versus peribulbar anesthesia in phacoemulsification surgery

The objective of our study was to evaluate and compare clinical outcomes, patients and surgeon’s satisfaction following topical versus peribulbar anesthesia in phacoemulsification surgery. A hospital based Randomized Prospective interventional Comparative Study done between November 2017 to May 2019. A total of 200 patients included in the study, ocular examination, biometry were done. Patients were randomly distributed into group1 TA (topical anesthesia) and group 2 PA (Peribulbar anesthesia), they underwent phacoemulsification with intraocular lens implantation, postoperative visual outcome and inflammation on day1 and after 1 week, VAS (Visual Analogue scale) pain scale used to analyse patients comfort and pain postoperatively. The Statistical analysis was performed by STATA 11.2 (College Station TX USA). In our study 200 participated, it was found in PA group, 60.47 ± 11.86 yrs and in TA group 59.01 ± 11.29yrs as mean age, majority were male. PA group had few complications during anesthesia and in both groups majority had no intraoperative complications. Log Mar visual acuity postoperative day 1, PA group was 0.65±0.40 and in TA was 0.49±0.32, post operative visual recovery was better in TA group patients and had less pain and more comfortable than PA. Surgeon had difficulty more with TA group patients. It was found, postoperative visual recovery was faster and better in patients with topical group with less postoperative inflammation and complications. Topical anesthesia being a non invasive procedure can be considered better than peribulbar when compared in terms of patients comfort and postoperative recovery.

Speech- and Language-Based Classification of Alzheimer’s Disease: A Systematic Review

Background: Alzheimer’s disease (AD) has paramount importance due to its rising prevalence, the impact on the patient and society, and the related healthcare costs. However, current diagnostic techniques are not designed for frequent mass screening, delaying therapeutic intervention and worsening prognoses. To be able to detect AD at an early stage, ideally at a pre-clinical stage, speech analysis emerges as a simple low-cost non-invasive procedure. Objectives: In this work it is our objective to do a systematic review about speech-based detection and classification of Alzheimer’s Disease with the purpose of identifying the most effective algorithms and best practices. Methods: A systematic literature search was performed from Jan 2015 up to May 2020 using ScienceDirect, PubMed and DBLP. Articles were screened by title, abstract and full text as needed. A manual complementary search among the references of the included papers was also performed. Inclusion criteria and search strategies were defined a priori. Results: We were able: to identify the main resources that can support the development of decision support systems for AD, to list speech features that are correlated with the linguistic and acoustic footprint of the disease, to recognize the data models that can provide robust results and to observe the performance indicators that were reported. Discussion: A computational system with the adequate elements combination, based on the identified best-practices, can point to a whole new diagnostic approach, leading to better insights about AD symptoms and its disease patterns, creating conditions to promote a longer life span as well as an improvement in patient quality of life. The clinically relevant results that were identified can be used to establish a reference system and help to define research guidelines for future developments.

Non-invasive scoring of cellular atypia in keratinocyte cancers in 3D LC-OCT images using Deep Learning

Diagnosis based on histopathology for skin cancer detection is today’s gold standard and relies on the presence or absence of biomarkers and cellular atypia. However it suffers drawbacks: it requires a strong expertise and is time-consuming. Moreover the notion of atypia or dysplasia of the visible cells used for diagnosis is very subjective, with poor inter-rater agreement reported in the literature. Lastly, histology requires a biopsy which is an invasive procedure and only captures a small sample of the lesion, which is insufficient in the context of large fields of cancerization. Here we demonstrate that the notion of cellular atypia can be objectively defined and quantified with a non-invasive in-vivo approach in three dimensions (3D). A Deep Learning (DL) algorithm is trained to segment keratinocyte (KC) nuclei from Line-field Confocal Optical Coherence Tomography (LC-OCT) 3D images. Based on these segmentations, a series of quantitative, reproducible and biologically relevant metrics is derived to describe KC nuclei individually. We show that, using those metrics, simple and more complex definitions of atypia can be derived to discriminate between healthy and pathological skins, achieving Area Under the ROC Curve (AUC) scores superior than 0.965, largely outperforming medical experts on the same task with an AUC of 0.766. All together, our approach and findings open the door to a precise quantitative monitoring of skin lesions and treatments, offering a promising non-invasive tool for clinical studies to demonstrate the effects of a treatment and for clinicians to assess the severity of a lesion and follow the evolution of pre-cancerous lesions over time.

Effectiveness of a long-term Tecar Therapy treatment on Knee Pain: building T.T.E.S.S.K., an evaluating scale A systematic review and meta-analysis

Background T.E.C.a.R (Transfer of Energy Capacitive and Resistive) Therapy (TT) is a form of endogenous thermotherapy based on radio waves 1 . It is a non-invasive procedure, that makes use of a machine able to stimulate heat inside the body to repair the inflammatory processes. Although being well known in the physiotherapy and massage therapy ambient for its benefic effects, which are still not very explored especially physiological and biochemical ones; TT is commonly used by therapists for musculoskeletal diseases. Anyhow, TT is often used as a palliative remedy for musculoskeletal disease, or linked with an ibuprofen or antidolorific medical therapy, and not as a main cure. Current literature still lacks objective ways to evaluate TT treatment. This study aims to create an evaluating Scale for the knee joint lesions treated with TT, for athletes or sports enthusiasts. Methods PubMed, Embase, and Cochrane Library databases were screened to perform an extensive review. PRISMA guidelines were applied, and the risk of bias was assessed, as was the methodological quality of the included studies. 25 articles were reviewed. 178 patients (total amount of clinic cases in PubMed, Embase and Cochrane Library articles combined) have decreased their pain after a long-term TT treatment (> 3 or 5 sessions). Results Knee joint is often affected by non-sportive or sportive musculoskeletal lesions. ((At this point, not only the TT articles were reviewed, but also all the articles (122) that included these key aspects)). Six items were selected to evaluate the efficacy of TT on the impaired joint: Range of Motion (ROM), %MVIC of quadriceps, biceps femoris and gastrocnemius, Cincinnati Rating Scale System (CRSS), NRS Pain Scale, Muscle Fiber Orientation (MFO) and %Trigger Points. Conclusions Our study allows to build a new treatment methodology with TT. It guarantees the therapist to structure a long-lasting follow-up, which is not limited to the simple use of the machine. Applying this methodology, the patient receives a treatment that is not limited, but built on his own needs thanks to the distribution of the summing scores, strictly dependent on the type of clinical case that the therapist finds. Thanks to the six items we inserted in T.T.E.S.S.K. (“Tecar Therapy Evaluation Score System of the Knee”), every aspect of a musculotendinous pathology is recognized, and might be treated with TT by therapists.

Gallbladder Cryoablation: Clinical and Technical Considerations

As many as 500,000 cholecystectomies are performed per year in the United States. Frail patients are at higher risk from cholecystectomy, with reported postoperative complication and mortality rates as high as 31 and 5% in patients older than 75 years. Percutaneous cholecystostomy drainage is commonly employed in high-risk patients with cholecystitis, with over 12,000 cases performed annually. Cholecystostomy, however, is not a definitive treatment, with up to 30% of patients having a recurrent episode of cholecystitis within 4 months after tube removal. Gallbladder cryoablation has emerged as a minimally invasive procedure that achieves transmural gallbladder wall necrosis in a single session resulting in gallbladder fibrosis and involution. Early clinical data have been promising, with reported technical success of 86% and clinical success of 100% at up to 500 days of follow-up. Several challenges and unknowns remain, however, including optimal patient selection and procedural technique, the potential need for adjunct procedures to occlude the cystic duct, the implications of the immunostimulatory effects of cryoablation, and the impact of the presence of gallstones on outcomes. This article reviews the rationale behind gallbladder cryoablation, updates early clinical outcomes, and discusses the challenges that remain for the adoption of the technique for the treatment of benign gallbladder disease.

Complications associated with and outcome of surgical intervention for treatment of esophageal foreign bodies in dogs

OBJECTIVE To identify complications associated with and short- and long-term outcomes of surgical intervention for treatment of esophageal foreign bodies (EFBs) in dogs. ANIMALS 63 client-owned dogs. PROCEDURES Patient records from 9 veterinary hospitals were reviewed to identify dogs that underwent surgery for removal of an EFB or treatment or an associated esophageal perforation between 2007 and 2019. Long-term follow-up data were obtained via a client questionnaire. RESULTS 54 of the 63 (85.7%) dogs underwent surgery after an unsuccessful minimally invasive procedure or subsequent evidence of esophageal perforation was identified. Esophageal perforation was present at the time of surgery in 42 (66.7%) dogs. Most dogs underwent a left intercostal thoracotomy (37/63 [58.7%]). Intraoperative complications occurred in 18 (28.6%) dogs, and 28 (50%) dogs had a postoperative complication. Postoperative complications were minor in 14 of the 28 (50%) dogs. Dehiscence of the esophagotomy occurred in 3 dogs. Forty-seven (74.6%) dogs survived to discharge. Presence of esophageal perforation preoperatively, undergoing a thoracotomy, and whether a gastrostomy tube was placed were significantly associated with not surviving to discharge. Follow-up information was available for 38 of 47 dogs (80.9%; mean follow-up time, 46.5 months). Infrequent vomiting or regurgitation was reported by 5 of 20 (25%) owners, with 1 dog receiving medication. CLINICAL RELEVANCE Results suggested that surgical management of EFBs can be associated with a high success rate. Surgery should be considered when an EFB cannot be removed safely with minimally invasive methods or esophageal perforation is present.

High Precision Bone Cutting by Er: YAG Lasers Might Minimize the Invasiveness of Navigated Brain Biopsies

Biopsies of brain tissue are sampled and examined to establish a diagnosis and to plan further treatment, e.g. for brain tumors. The neurosurgical procedure of sampling brain tissue for histologic examination is still a relatively invasive procedure that carries several disadvantages. The “proof of concept”-objective of this study is to answer the question if laser technology might be a potential tool to make brain biopsies less invasive, faster and safer. Laser technology might carry the opportunity to miniaturize the necessary burr hole and also to angulate the burr hole much more tangential in relation to the bone surface in order to take biopsies from brain regions that are usually only difficult and hazardous to access. We examined if it is possible to miniaturize the hole in the skull bone to such a high extent that potentially the laser-created canal itself may guide the biopsy needle with sufficient accuracy. The 2-dimensional, i.e. radial tolerance of the tip of biopsy needles inserted in these canals was measured under defined lateral loads which mimic mechanical forces applied by a surgeon. The canals through the skull bones were planned in angles of 90° (perpendicular) and 45° relative to the bone surface. We created a total of 33 holes with an Er : YAG laser in human skull bones. We could demonstrate that the achievable radial tolerance concerning the guidance of a biopsy needle by a laser created bone canal is within the range of the actual accuracy of a usual navigated device if the canal is at least 4 mm in length. Lateral mechanical loads applied to the biopsy needle had only minor impact on the measurable radial tolerance. Furthermore, in contrast to mechanical drilling systems, laser technology enables the creation of bone canals in pointed angles to the skull bone surface. The latter opens the perspective to sample biopsies in brain areas that are usually not or only hazardous to access.

Clinical utility of linear endosonography in patients with unexplained biliary dilatation and negative MRCP, with predictors for detection of neoplastic lesions

Background and study aims Unexplained biliary dilatation (UBD) frequently represents a diagnostic dilemma. Linear endosonography (EUS), with its close proximity to the pancreaticobiliary system and the ability for tissue acquisition, could have a role in revealing etiologies of UBD particularly in the context of negative other non-invasive modalities. However, in such patients, the decision for this semi-invasive procedure is usually debatable and often needs justification. Thus, we aimed to evaluate the diagnostic utility of linear EUS in patients with UBD after negative magnetic resonance cholangiopancreatography (MRCP) and to delineate predictors for EUS ability to detect neoplastic lesions. Patients and methods This was a prospective diagnostic observational study between 2018 and 2021. Included patients with evidence of biliary dilatation on abdominal ultrasound and negative MRCP underwent linear EUS examination. Results were compared to the final diagnosis relied on histopathology after EUS-guided biopsy or surgery for neoplastic lesions, while ERCP, diagnostic EUS criteria plus histopathology for autoimmune pancreatitis, Rosemont criteria for chronic pancreatitis, and/or follow-up for 6 months were the gold standard tests for non-neoplastic etiologies. Logistic regression was conducted to reveal predictors of neoplasm detection by EUS. Results Sixty-one patients (mean age 60 years, 32 females) were enrolled; 13.1% of them were asymptomatic. The final diagnosis was categorized into 29 patients with and 32 without neoplasms. Sensitivity, specificity, positive, negative predictive values (PPV, NPV), and accuracy of EUS-positive findings were 98.3%, 100%, 100%, 66.7%, and 98.3%, respectively. Corresponding results for neoplasm identification were 100%, 93.8%, 93.5%, 100%, and 96.7%, respectively. The most common neoplastic etiologies were small pancreatic and ampullary masses. Common bile duct (CBD) diameter > 12.9mm and CA19-9 > 37.1 u/ML were independent predictors for pancreaticobiliary neoplasm at multivariate regression analysis. Conclusion Linear EUS appears to have a high accuracy in detecting etiologies of UBD, with higher sensitivity for small pancreatic, ampullary lesions, and CBD stones. CBD diameter > 12.9 mm and elevated CA19-9 > 37.1 u/ML should raise a concern about the presence of occult pancreaticobiliary neoplasm, and then, EUS may be warranted even in asymptomatic patients.

Transvaginal ultrasonography versus hysteroscopy in endometrial pathology diagnosis among women with abnormal uterine bleeding

Objective: Abnormal uterine bleeding is any deviation from a normal menstrual pattern. Transvaginal ultrasonography is useful in determining endometrial thickness but cannot conclusively exclude sessile and pedunculated lesions. Hysteroscopy is an invasive procedure that detects discrete lesions. This study was aimed to evaluate the diagnostic accuracy of 2-dimensional transvaginal ultrasonography and hysteroscopy in evaluating endometrial lesions in women with abnormal uterine bleeding, by determining the sensitivity and specificity of the two methods in diagnosing the lesions. Methods: Eighty-four cases of abnormal uterine bleeding were chosen based on inclusion criteria. The patients were subjected to routine investigations. The findings of transvaginal ultrasonography, hysteroscopy, and dilatation and curettage were compared and analyzed. Results: Maximum incidence of abnormal uterine bleeding was observed in women between 41 and 50 years of age (73.8%). The most common presenting complaint was menorrhagia (76.1%). 76% of patients experienced symptoms for less than six months. The sensitivity and specificity of transvaginal ultrasonography were 60% and 96.3%, respectively. The sensitivity and specificity of hysteroscopy were 80.4% and 93.1%, respectively. The accuracy of transvaginal ultrasonography was 60.3%, and that of hysteroscopy was 83.3%. Conclusion: Transvaginal ultrasonography and hysteroscopy can be used as first-line diagnostic modalities to rule out and find the causes of abnormal uterine bleeding, which can aid in instituting prompt and appropriate medical treatment.