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Stethoscope - Over 200 years

Published on: 18th January, 2019

With the invention of the stethoscope, in the early 1800s, a better diagnosis of heart and lung disorders was opened up. Through the stethoscope's 200-year history, there has been a significant development of the stethoscopy from the use of the simple monaural earpiece to the binaural stethoscope, followed by the electronic stethoscope, which, together with other studies, has enabled a thorough diagnosis of these disorders. Here is a glimpse of this story. The cross-border investigation Far back in time, it has been clear that the function of the heart and lungs played an important role in maintaining life. By tapping with the finger (percussion) and putting the ear to the patient's chest (auscultation), it could hear sound from the body telling about the patient's condition, especially about the presence of fluid or air-filled organs. Auscultation is already described in the Corpus Hippocraticum, in the Diseases II section [1]. The doctor puts the ear to the chest of a patient with water sores, to hear the pain as a wine vinegar from the lungs - or the doctor grabs the patient about the shoulders, shakes him and places his ear to his chest to hear in which side his pleuritis is sitting. Since then, auscultation seems to have been partially forgotten, although it has probably been known by Ambroise Paré and William Harvey [2]. It was not until the late 1700s that it became an important diagnostic aid, just like the pulse clock and the medical thermometer [3 p. 277]. Here, Joseph Leopold Auenbrugger (1722-1809) is considered to be the father of the modern physical examination, which is based on percussion. Percussion he performed by knocking direcly on the thorax with the finger or cupped hands. His discovery of the percussion sounds from the chest during inhaling and exhaling originates from his work in 1760 at the Vienna Military Hospital [4]. In 1761, His little book on thoracic percussion revealing thoracic diseases appeared in 1761 [3p.271], which in 1808 was translated into French by the Parisian physician Jean Nicolas Corvisart des Marets (1755-1821). This contributed to the French doctors starting to use percussion and ausculation more routinely [5]. The limitation of simple auscultation was the fact that the sound was weak and incomplete and therefore there was a need for improved sound quality. In addition, the direct contact with the patient's body could seem insulting
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Cystic Micronodular Thymoma. Report of a Case

Published on: 20th January, 2017

OCLC Number/Unique Identifier: 7286426157

Micronodular thymoma is a rare subtype of thymoma with less than 20 cases published in the English literature. These tumours have been reported with thymoma or thymic cyst. The authors describe a new case of micronodular thymoma in a 68-year-old-patient which is well documented and particular by its cystic degeneration which hasn’t been described yet. Micronodular thymoma is a rare variant of thymoma with a challenging diagnosis. Clinicians must be aware of this entity in order not to confuse it with a thymic cyst.
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Recurrent Peripheral Ameloblastoma of the Mandible: A Case Report

Published on: 30th January, 2017

OCLC Number/Unique Identifier: 7286357027

Ameloblastoma is the second most common odontogenic tumor being back only for the odontoma. An unusual case of recurrent peripheral ameloblastoma in the mandible from the site of previous occurrence, reducing oropharyngeal space due compression by lesion. Panoramic radiography not showed presence of lesion, except one step in left side of mandible angle. Multislice CT scans revealed presence of hypoattenuated image, well-defined, histopathological exam suggesting Ameloblastoma Follicular.
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Chronic fatigue syndrome and epigenetics: The case for hyperbaric oxygen therapy in biomarker identification

Published on: 26th February, 2021

OCLC Number/Unique Identifier: 9038783706

Chronic fatigue syndrome (CFS) is a poorly-understood respiratory condition that affects millions of individuals. Hyperbaric oxygen therapy (HBOT) is a treatment option being considered to address CFS as it is suggested to combat fatigue and increase oxygenation. HBOT provides two opportunities in advancing research of CFS: it may provide data on symptom amelioration and be utilized in the search for a biomarker. By either identifying biomarkers before using HBOT to compare epigenomes of patients before and after treatment or using HBOT to find epigenetic discrepancies between patients with and without treatment, matching epigenetic regulation with symptom amelioration may significantly advance the understanding of the etiology and treatment mechanism for CFS. EPAS1/HIF-2α is a leading candidate for an epigenetic biomarker as it responds differentially to hypoxic and normoxic conditions, which degrades more slowly in hypoxic conditions. Epigenetic regulation of EPAS1/HIF-2α in such differential conditions may be explored in HBOT experiments. In addition to HBOT as a promising treatment option for CFS symptoms, it may aid the identification of biomarkers in CFS. Further research into both outcomes is strongly encouraged.
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Tumours of the Uterine Corpus: A Histopathological and Prognostic Evaluation Preliminary of 429 Patients

Published on: 30th January, 2017

OCLC Number/Unique Identifier: 7286353787

A histopathological review preliminary of 429 patients diagnosed with tumours of the uterine corpus (TUC) cancer between 1984- 2010 in the Vigo University Hospital Complex (Spain) were evaluated prospectively for over 5 years. Of these 403 (93.9%) were epithelial tumours: 355 (82.7%) were adenocarcinomas of the endometrioid type, 5 (1.1%) mucinous adenocarcinoma, 10 (2.3%) serous adenocarcinoma, 17 (3.9%) clear cell carcinomas, 11 (2.5%) mixed adenocarcinoma, 4 (0.9%) undifferentiated carcinomas and 1 (0.2%) squamous cell carcinomas. A total 20 (4, 6%) were mesenchymal tumours: 4 (0.9%) endometrial stromal sarcoma, 7 (1.6%) Leiomyosarcoma, 9 (2%) Mixed endometrial stromal and smooth muscle tumour. A total 1 (0.2%) were mixed epithelial and mesenchymal tumours: (0.2%) Adenosarcoma 1. And 5 (1.1%) were Metastases from extragenital primary tumour (3 carcinomas of the breast, 1 stomach and 1 colon). The mean age at diagnosis from total series were 65, 4 years (range 28-101 years). Age was clearly related to histologic type: Endometrial stromal sarcoma 46.0 years, Leiomyosarcomas 57.1 years, Adenocarcinomas of the endometrioid type 65.4 years, Clear cell carcinomas 70.1 years and mixed endometrial stromal and smooth muscle tumours 71.2 years. Five-year disease-free survival rates for the entire group were: Endometrial stromal sarcoma 50%, Leiomyosarcomas 28.6%, Adenocarcinomas of the endometrioid type 83.7%, Clear cell carcinomas 64.7% and mixed endometrial stromal and smooth muscle tumours 44.4%. The 5-year disease-free survival rates of patients with Adenocarcinomas of the endometrioid type tumors were 91.4% for grade 1 tumors, 77.5% for grade 2, and 72.7% for grade 3. In conclusion, we describe 5-year histological and disease-free survival data from a series of 429 patients with TUC, observing similar percentages to those described in the medical literature. The only difference we find with other published series is a slightly lower percentage of serous carcinomas (ESC) that the Western countries but similar to the 3% of all ESC in Japan. Our investigation is focus at the moment on construct genealogical trees for the possible identification of hereditary syndromes and to carry out germline mutation analysis.
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Advances in Physiological Research: Consideration on Arterial Hypercapnia in Acute Cardiogenic Pulmonary Edema (ACPE)

Published on: 24th October, 2024

The causes of hypercapnia in Acute Cardiogenic Pulmonary Edema are still unknown. Our hypothesis recognizes an alteration of the ventilation-perfusion ratio in the apical areas of the lung as the major cause. The redistribution of blood to the apical lung zone in hypertensive pulmonary circulation determines an excess of perfusion compared to ventilation and consequently hypercapnia. Our suggestion might be in favor of Bilevel-PAP over Continuous Positive Airway Pressure (CPAP) as the first line of therapy.
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Causes of Coronary Angioplasty Denial in Patients Diagnosed with Significant Coronary Artery Disease in East Afghanistan

Published on: 30th October, 2024

Coronary Artery Disease (CAD) is a leading cause of mortality worldwide, with coronary angioplasty being a crucial intervention for patients with significant disease. This study aimed to identify and analyze the causes of coronary angioplasty denial in patients with significant coronary artery disease in Afghanistan, focusing on demographic, socioeconomic, and clinical factors.A case-control study was conducted with a sample size of 213 patients diagnosed with significant CAD at tertiary care center in Afghanistan. The case group consisted of 106 patients who were denied angioplasty, and the control group included 107 patients who underwent the procedure. Data were collected on demographic characteristics, comorbidities, education, residence, functional status, income, and the reasons for angioplasty denial. Descriptive statistics and comparative analyses were performed to assess the factors associated with denial.The primary reasons for angioplasty denial were financial constraints (45.3%, p < 0.001), limited hospital facilities (15.1%, p = 0.045), patient refusal (23.6%, p < 0.001), and physician preference for conservative management (12.3%, p = 0.091). Denial rates were higher among patients who were older, had multiple comorbidities, were from rural areas, and had lower education and income levels. Illiteracy and cultural beliefs contributed significantly to patient refusal, while inadequate healthcare infrastructure disproportionately affected rural populations.Financial and infrastructural barriers are the leading causes of coronary angioplasty denial in Afghanistan, exacerbating disparities in healthcare access, particularly among low-income and rural patients. Addressing these issues through policy reforms, improved healthcare infrastructure, and targeted public health education is essential to reducing CAD-related morbidity and mortality in the country.
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A few observations of clinical importance

Published on: 4th June, 2019

OCLC Number/Unique Identifier: 8165450552

This article reflects the opinion on a few of my clinical experiences involving symptoms and signs which are not mentioned in standard textbooks on medicine or clinical methods. These are clinical and a few radiological signs which I think worth discussing by clinical community, includes Muslim prayer’s feet, hyponatraemic bullae, early signs of oedema, PCV sign, hemi-semi-Hoffman’s sign and a few more.
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Occipital lobe ependymal cyst with unusual presentation

Published on: 19th September, 2019

OCLC Number/Unique Identifier: 8286553600

Intraparenchymal cysts without communication to the ventricles or the subarachnoid space are named ependymal or epithelial cysts. The estimated ratio of their incidence compared with arachnoid cysts is 1:10. Neurologic deficit can occur when the cyst exerts mass effect on its surroundings. We report a case of cerebral ependymal cyst in a 75-year-old lady who presented with history of headache, vomiting and left incomplete homonymous hemianopsia. Neuroimaging studies showed a large right occipital cyst. She underwent the neurosurgical procedure of marsupialization. Histologic findings and the immunophenotype was consistent with a diagnosis of ependymal cyst. The patient made an excellent recovery after the procedure.
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Mitigation and adaptation to climate change of plant pathogens

Published on: 7th September, 2022

The impact of climate change on plant diseases poses a serious threat to food security [1-4]. Climate change has a direct effect on the occurrence and severity of disease in crops. Global plant health assessment and crop loss estimation due to pests and diseases has been made especially for cropping regions defined by the major crops of wheat, rice, maize, potato and soybean [5].
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