Marwah Medicine

FMGE, INICET, NEET PG, NEET PG 2025

NON-INVASIVE VENTILATION

This is a high yield topic for your forth coming exams and must know from medical perspective. Lets focus on indications and contraindications for NIV. Indications for Non-Invasive Ventilation (NIV) Mnemonic: “COPD CAN Breathe” COPD exacerbation with hypercapnia and respiratory acidosis. Cardiogenic pulmonary oedema with respiratory distress. Chronic respiratory failure (neuromuscular diseases, obesity hypoventilation syndrome, chest wall deformities). Acute hypoxemic respiratory failure (selected patients, PaO₂/FiO₂ < 200). Non-invasive support post-extubation to prevent reintubation. Breathe (palliative care with DNI orders to ease dyspnea). Contraindications for Non-Invasive Ventilation (NIV) Mnemonic: “CRASH FACE” Cardiac or respiratory arrest. Risk of aspiration due to inability to protect the airway. Active vomiting or copious secretions. Severe facial trauma, burns, or structural abnormalities. Hemodynamic instability or life-threatening arrhythmias. FACE: Failed mask fit due to anatomy or burns. Agitation or inability to cooperate. Critical acidosis (pH < 7.15). Extreme hypoxemia requiring invasive ventilation. #NEETPG #INICET #FMGE

FMGE, INICET, Medical

Must Know Spinal Cord Lesions in Ten Minutes

DISEASE  CHARACTERISTICS   Spinal muscular atrophy Polio Destruction of anterior horn cells and flaccid paralysis   Neuromyelitis Optica Anti Aquaporin 4 antibody causing demyelination in white matter of spinal cord. Cervical spine involvement will cause quadriplegia   Brown-Séquard Hemi-section   Ipsilateral band of hyperesthesia at level of lesion Ipsilateral loss of proprioception below level of lesion Ipsilateral hemiparesis Contralateral loss of pain and temperature sensation one to two levels below lesion   Amyotrophic lateral sclerosis Asymmetric muscle weakness of legs and arms Combined UMN and LMN deficits Commonly presents as fasciculations with eventual atrophy and weakness of hands; Riluzole is used to improve survival   Complete occlusion of anterior spinal artery Spares dorsal columns. Sensory-motor dissociation Occurs after abdominal aorta surgery Central cord syndrome   Weakness more pronounced in upper extremities than lower extremities   Caused by hyperextension injuries of spine   Tabes dorsalis seen due to tertiary syphilis Lhermite sign Bladder incontinence Progressive sensory ataxia (inability to sense or feel the legs) poor coordination. Rhomberg sign due to impaired sensation and proprioception Associated with Charcot joints (repeated unknowing trauma to joint caused by lack of pain) Argyll Robertson pupils Syringomyelia   Caused due to Arnold chiari syndrome type 1 Syrinx (CSF-filled cavity within spinal cord) expands and damages anterior white commissure of spinothalamic tract. Results in a cape-like, bilateral loss of pain and temperature in upper extremities Vitamin B12 deficiency  Subacute combined degeneration-demyelination of dorsal columns, lateral corticospinal tracts, and spinocerebellar tracts; ataxic gait, paresthesia, impaired position and vibration sense Cauda equina syndrome Compression of spinal roots L2 and below, most likely caused by disc herniation; saddle anesthesia, loss of bladder and anal sphincter control, and absent knee and ankle jerk reflexes

FMGE, INICET, Medical

Pseduohypoparathyroidism vs Pseudopseudohypoparathyroidsm

Understanding this distinction is important for proper diagnosis, as it helps differentiate between these two genetically related conditions with similar physical manifestations but differing biochemical profiles. Pseudopseudohypoparathyroidism PPHP is caused by heterozygous mutations in the GNAS gene, the same gene responsible for PHP, but only in the paternal allele. Maternal allele of the GNAS gene is normal, so the gene function is not impaired in the tissues where the mutation is expressed (such as kidneys, bones, and adipose tissue). This results in the physical features of PHP (e.g., short stature, round face, and obesity) but without the biochemical abnormalities associated with PHP).   Key Features of PPHP: Physical Features: Individuals with PPHP often have the same physical features as those with PHP (e.g., short stature, obesity, round face, and sometimes subcutaneous calcifications). These features are due to the imprinting of the GNAS gene, which results in Albright’s hereditary osteodystrophy. Biochemical Features: In contrast to PHP, individuals with PPHP do not have PTH resistance. They do not experience the same hypocalcemia or elevated PTH associated with PHP. Urinary cAMP levels in response to PTH are normal in PPHP, because there is no resistance to the effects of PTH. This is one of the major distinguishing features between PHP and PPHP. Pseudohypoparathyroidism (PHP) vs Pseudopseudohypoparathyroidism (PPHP): Feature Pseudohypoparathyroidism (PHP) Pseudopseudohypoparathyroidism (PPHP) Cause Maternal inheritance of a mutation in the GNAS gene. Paternal inheritance of a mutation in the GNAS gene. Physical features Albright’s hereditary osteodystrophy (short stature, obesity, round face, subcutaneous calcifications). Same physical features (short stature, obesity, round face) as PHP. PTH levels Elevated PTH (due to PTH resistance in the kidneys and other tissues). Normal PTH levels because tissues respond normally to PTH. Urinary cAMP response to PTH Low or absent urinary cAMP despite elevated PTH levels (due to PTH resistance). Normal urinary cAMP response to PTH (because there is no PTH resistance). Calcium levels Hypocalcemia (low calcium) due to PTH resistance. Normal calcium levels (since there is no PTH resistance).   Key Diagnostic Difference: PPHP presents with the physical features of pseudohypoparathyroidism, but urinary cAMP levels will be normal in response to PTH, differentiating it from pseudohypoparathyroidism where urinary cAMP is low despite high PTH.   Take home points Pseudohypoparathyroidism (PHP) is characterized by PTH resistance and low urinary cAMP despite high PTH levels. Pseudopseudohypoparathyroidism (PPHP) shares the physical features of PHP (due to imprinting of the GNAS gene) but does not have PTH resistance, and urinary cAMP levels remain normal in response to PTH.

FMGE, INICET, Medical

STROKE

DIAGNOSIS For any neurological emergency first secure airway, check BP and calculate NIHSS. National institute of health stroke scale value > 5 confirms stroke Best initial step: Head CT without contrast to differentiate ischemic from hemorrhagic stroke and identify potential candidates for thrombolytic therapy. If CT head is normal and no evidence of CNS bleed in present in symptomatic patient it implies Acute ischemia stroke Labs to draw immediately, in case thrombolytic therapy or intervention may be required, include CBC, Random blood sugar, coagulogram, cardiac biomarkers and KFT CTA is done after fibrinolysis to determine opening of large vessel occlusion Investigations NCCT head ECG Echo Holter Carotid doppler Transcranial doppler Conventional Angiography Common Stroke Symptoms by Vessel Territory  VESSEL TERRITORY  Characteristic features   Middle cerebral artery Patient looks towards the side of lesion Contralateral paresis and sensory loss in the face and arm Homonymous hemianopsia Global Aphasia for dominant lobe lesion Neglect and constructional apraxia for non-dominant lobe lesion   Anterior cerebral artery Contralateral paresis and sensory loss in the leg Aggressive behavior with personality changes Abulia Urinary incontinence Posterior cerebral artery P1 PCA: Weber syndrome I/L 3rd nerve palsy with contralateral hemiparesis   P1 PCA: Nothnagel syndrome I/L 3rd nerve palsy with contralateral limb ataxia Lacunar Pure motor paralysis due to damage to posterior limb of internal capsule Pure sensory stroke Ataxic hemiparesis, dysarthria, or clumsy hand Strokes affecting the thalamus may cause thalamic pain syndrome several weeks after the event, patient complaints of burning pain over hand, arm, leg on even touch   Transient ischemic attack Any 1 of the symptoms above depending on location of vascular lesion and 1.       Neurologic deficit lasts < 24 hours (most last < 1 hour) 2.       DW MRI will be normal   Wallenberg syndrome due to vertebral artery involvement Loss of pain and temperature sensation on ipsilateral face and contralateral body Ipsilateral bulbar weakness Ipsilateral Horner syndrome Vertigo Nystagmus Carotid artery dissection Sudden headache, neck pain, Horner syndrome Treatment of acute ischemic stroke < 6 hours 6 -24 hours Fibrinolysis but BP should be less than < 185/110 mm Hg If BP remains more than the cut off mentioned then Schedule thrombectomy Thrombectomy after conventional cerebral angiography Ideal window period for acute ischemic stroke is 4.5 hours but can be done up to 6 hours Treat fever and hyperglycemia as both are associated with poorer prog- noses in the setting of acute stroke. Monitor for signs and symptoms of brain swelling, raised intracranial pressure and herniation. Treat acutely with mannitol and Prevent and treat poststroke complications, such as aspiration pneumonia, urinary tract infection (UTI), and deep vein thrombosis (DVT). Contraindications to fibrinolysis Stroke or head trauma within the last 3 months Anticoagulation with INR > 1.7 MI in past 3 months Prior intracranial hemorrhage Elevated BP: Systolic > 185 mm Hg or diastolic 110 mm Hg Major Surgery in the past 14 days On discharge the following measures are to be introduced – Hypertension treatment with target BP of < 130/80 mm Hg Keep HbA1c < 7% Statins Acetylsalicylic acid and ticagrelor (dual antiplatelet therapy) For cardioembolic strokes due to atrial fibrillation, target INR is 2-3. In Cases in India involving a prosthetic valve deployed for calcified mitral valve, the target INR is 2.5-3.5. Carotid endarterectomy: If stenosis is > 60% in symptomatic patients or >70% in asymptomatic patients (contraindicated in complete occlusion)

FMGE, INICET, NEET PG, NExT

Anaphylactic Shock and Its Management: A Comprehensive Guide

Anaphylactic shock is the most severe form of allergic reaction and it is characterized by a combination of the following life-threatening symptoms in patient after parenteral drug administration or vaccine. It can occur within seconds to minutes making it a difficult case to handle. Severe Hypotension: As the blood vessels dilate and fluids leak into surrounding tissues, the volume of blood circulating through the body decreases, leading to shock. This can result in the organs not receiving enough oxygen and nutrients, causing them to malfunction. Airway Obstruction: Laryngeal oedema, swelling of the throat or tongue can block the airway, making it difficult to breathe and presents as stridor. This is a critical concern and can lead to respiratory failure without prompt treatment. This is coupled with bronchospasm and wheeze. Loss of Consciousness: Due to low blood pressure and inadequate oxygen supply to the brain, individuals may faint or become unresponsive. Multiple Organ Involvement: Anaphylactic shock can affect vital organs, including the heart, lungs, liver, and kidneys. Without rapid intervention, the situation can quickly become fatal. Common Triggers of Anaphylactic Shock Understanding the common triggers for anaphylaxis is crucial for prevention and management. The most frequent triggers include: Food Allergies: Certain foods, especially peanuts, tree nuts, shellfish, eggs, and milk, are among the most common culprits. These foods can provoke an immune response in individuals with allergies to them. Insect Stings: Bee stings, wasp stings, or bites from other insects like hornets can cause anaphylaxis in people allergic to venom. Medications: Antibiotics (like penicillin) and non-steroidal anti-inflammatory drugs (NSAIDs) can trigger severe allergic reactions in some individuals. Latex: Latex allergies are common, particularly in healthcare settings where gloves and other medical devices made from latex are frequently used. Other Allergens: Although less common, some people may experience anaphylaxis due to allergens like pollen, mold, or animal dander. Symptoms of Anaphylactic Shock The symptoms of anaphylaxis typically occur rapidly after exposure to an allergen. They can range from mild to severe and affect multiple body systems. Common symptoms include: Skin reactions: Hives, itching, redness, or swelling (especially around the eyes, lips, and throat). Respiratory symptoms: Difficulty breathing, wheezing, throat tightness, swelling of the tongue or throat, and hoarseness. Cardiovascular symptoms: Dizziness, fainting, rapid heartbeat (tachycardia), or a drop in blood pressure (hypotension), which may cause shock. Gastrointestinal symptoms: Nausea, vomiting, abdominal cramps, or diarrhea. Neurological symptoms: Anxiety, confusion, and loss of consciousness in severe cases. Management of Anaphylactic Shock Immediate treatment is essential for anaphylactic shock. The following are the primary management strategies to mitigate the effects of anaphylaxis and prevent death: 1. Administer Epinephrine (Adrenaline) The first and most critical step in managing anaphylaxis is to administer epinephrine (adrenaline). Epinephrine is a life-saving medication that works quickly to counteract the severe allergic response. It constricts blood vessels, raises blood pressure, reduces swelling, and helps relax the muscles in the airways, improving breathing. Epinephrine is usually administered through an intramuscular injection, commonly in the thigh. For people at risk of anaphylaxis, carrying an epinephrine auto-injector (e.g., EpiPen) is essential. If you suspect anaphylaxis, inject the epinephrine as soon as possible and seek emergency medical help. 2. Call Emergency Medical Services (EMS) Anaphylaxis can recur, and additional medical intervention may be necessary. Medical personnel can administer further doses of epinephrine, antihistamines, corticosteroids, or other medications to stabilize the individual. 3. Lay the Person Down and Elevate Their Legs If the person is conscious, help them lie down with their legs elevated. This position helps to increase blood flow to vital organs and can prevent fainting or shock. However, if the person is having difficulty breathing, allow them to sit up or find a position that is more comfortable. 4. Administer Antihistamines and Corticosteroids Antihistamines (such as diphenhydramine) can help reduce some of the symptoms of anaphylaxis, such as hives and itching, but they should not replace epinephrine. Corticosteroids may be used to reduce inflammation and prevent the recurrence of symptoms, but they take longer to work and should not be the first line of defense. 5. Oxygen Therapy In severe cases, oxygen may be required to help the person breathe and maintain adequate oxygen levels in the blood. This is typically administered in a medical setting. 6. Observation and Follow-Up Care Even after initial treatment with epinephrine, the person should be observed for at least 4-6 hours in a medical facility. Anaphylaxis can recur, and additional doses of epinephrine may be required. Prevention of Anaphylactic Shock While anaphylactic shock is an emergency, prevention is the best strategy. Here are some tips to minimize the risk of anaphylaxis: Identify and Avoid Triggers: If you know what causes your allergic reactions, avoid those allergens. For example, if you’re allergic to peanuts, make sure to avoid foods that contain peanuts or are processed in facilities that handle peanuts. Carry Epinephrine: Anyone at risk for anaphylaxis should always carry an epinephrine auto-injector. Ensure that it is easily accessible and not expired. Wear Medical Identification: A medical alert bracelet or necklace can inform others about your allergies in case of an emergency. Educate Others: Make sure your family, friends, coworkers, and others know how to recognize the signs of anaphylaxis and how to use an epinephrine auto-injector if necessary. Work with a Healthcare Provider: If you have a history of severe allergic reactions, work with your doctor to develop a personalized action plan. This plan will help you avoid triggers and know what steps to take in the event of an anaphylactic reaction.

FMGE, INICET, Medical, Medicine, NEET PG, NExT Exam

Must Read Topics in General Medicine for INICET Examination

The INICET tends to blend image-based questions with clinical vignettes, emphasizing practical application over rote learning. Clinical reasoning, such as interpreting lab values or recognizing syndromes from case scenarios, is prioritized. Also, several questions in the last few papers have integrated basic sciences like pathology and microbiology into clinical contexts, so revisiting integrated concepts may give you an edge. For the November INI-CET (Institute of National Importance Combined Entrance Test), General Medicine is a key subject. The exam tends to emphasize clinical knowledge, diagnostics, management protocols, and recent updates. Here’s a structured list of must-know topics for General Medicine preparation: Cardiology – ECG interpretation– MI, arrhythmias, heart blocks, electrolyte disturbances Horizontal ST depression with upright T waves + R/S > 1 in lead V2 HTN patient with SOB and palpitations. On examination, HR= 120 min, irregular with BP= 90/60 mm Hg. Bilateral crackles in both lung fields is seen. Which is not correct? a. Rate control with esmolol b. Warfarin is not used non -valvular atrial fibrillation c. Rhythm control with Amiodarone d. DC shock is not given in persistent AF a a,b b,c b,d – Brugada syndrome vs TTCM -Acute Coronary Syndrome (STEMI/NSTEMI management) – Congestive Heart Failure (CHF) and NYHA Classification – Infective Endocarditis (update ISCVD 2023 update modified Duke’s criteria) – Hypertension – Aortic dissection management based on type A and type B Neurology – Stroke – Types, NIHSS score, thrombolysis, secondary prevention Would you perform thrombolysis a patient with weakness of face and arm weakness for last 1 hour with normal CT scan – Epilepsy – types and GCSE management – Parkinson’s disease vs HD vs PSP – Multiple Sclerosis and Guillain-Barré Syndrome – Meningitis/Encephalitis – Empirical antibiotics, CSF findings – Headache – Migraine, cluster headache, tension headache vs SAH vs GCA Endocrinology – Diabetes Mellitus – Diagnostic criteria of DKA/HHS management – Thyroid Disorders – Hypo- and hyperthyroidism, nodules, malignancy markers – Adrenal Disorders – Addison’s disease, Cushing’s syndrome   – Pituitary Disorders – Acromegaly, SIADH, DI (diabetes insipidus) – MEN Syndrome Pulmonology – Sleep Apnea Syndrome and obesity hypoventilation syndrome – Pulmonary Embolism and DVT – Risk factors, anticoagulation therapy Biker had polytrauma and develops breathing difficulty after 12 hours of injury. Sp02= 85%CT chest is shown. Echo shows Normal cardiac parameters. a. Fat embolism b. Pulmonary embolism c. ARDS d. Pneumothorax – COPD and Asthma – Harrison based guidelines, stepwise management – Interstitial Lung Diseases (ILDs) and Sarcoidosis – Tuberculosis (including MDR-TB management) Gastroenterology and Hepatology – Chronic Liver Disease and Cirrhosis – Child-Pugh score, MELD – Hepatitis – B graphs of Acute and chronic hepatitis B – GI bleed – Upper vs. lower, endoscopic management – Boerrhave vs Stomach volvulus vs Mallory Weiss vs Acute variceal bleeding Nephrology – Acute interstitial nephritis: Eosinophiluria — CIN vs Athero-embolic kidney disease -Fluid and Electrolyte Disorders – Sodium, potassium, calcium disturbances – Acute Kidney Injury (AKI) vs Chronic Kidney Disease (CKD) identification – Glomerulonephritis – RPGN, nephrotic vs nephritic syndrome – Renal replacement therapy – Hemodialysis, CRRT, peritoneal dialysis Rheumatology – Overlap syndrome – Anti synthetase syndrome vs Dermatomyositis vs Polymyositis Systemic Lupus Erythematosus (SLE) – Diagnostic criteria and antibodies – Rheumatoid Arthritis – Treatment protocols (DMARDs, biologics) – Vasculitis syndromes – ANCA-associated vasculitis, Takayasu’s arteritis – Gout and Pseudogout Infectious Diseases – Scrub typhus – Tropical Infections – Dengue, Malaria – HIV/AIDS – ART guidelines, opportunistic infections – COVID-19 and Post-COVID Syndromes -Sepsis and Septic Shock – Management protocols Hematology and Oncology – Leukemia and Lymphoma – Acute vs chronic, Hodgkin’s vs non-Hodgkin’s – Multiple Myeloma and Plasma Cell Disorders – Coagulation Disorders – DIC, hemophilia, thrombophilia – Paraneoplastic Syndromes General Topics & Miscellaneous – Acid-Base Disorders (ABG interpretation) – Shock – Types and management Study Tips  – Solve MCQs from previous INI-CET papers and clinical vignettes. – Focus on latest guidelines and protocols– These are frequently tested. – Give time to integrated questions involving multi-system involvement (e.g., heart and kidney-related disorders). This plan covers high-yield topics that are essential for the exam. Practice application-based questions regularly and ensure you revise the core topics thoroughly.

FMGE, INICET, Medical, Medicine, NEET, NExT, Nymphomania

Nymphomania

Introduction Nymphomania, as a term, carries a historical burden of stigma and pathologization of female sexuality. Although clinicians today use the more gender-neutral term “hypersexuality,” it is important to approach the topic with sensitivity. Patients may feel shame, embarrassment, or fear judgment, which can prevent them from seeking help. As healthcare providers, it is essential to foster an environment of nonjudgmental care, where patients can openly discuss their symptoms. Nymphomania, historically referred to as hypersexuality in women, is a term that has fallen out of favor in clinical usage due to its stigmatizing and gendered connotations. Today, it is more accurately described under the umbrella of hypersexual disorder or compulsive sexual behavior disorder (CSBD), which the World Health Organization (WHO) recognized in 2018 in the International Classification of Diseases (ICD-11). Despite the outdated nature of the term, the phenomenon it describes—a persistent, excessive, and distressing level of sexual desire—remains an important issue for clinicians to recognize and address. Diagnostic Criteria for CSBD (ICD-11): Differential Diagnosis Before concluding a diagnosis of hypersexuality, it is essential to rule out other medical and psychiatric conditions that may mimic these behaviors. A thorough history, including sexual, medical, and psychiatric aspects, is critical. What is Hypersexuality? Hypersexuality refers to a pattern of excessive sexual thoughts, urges, and behaviors that interfere with daily life. Although sexual drive and desire vary greatly among individuals, hypersexuality involves a preoccupation with sexual activity to the detriment of an individual’s emotional, physical, and social health. The Diagnostic and Statistical Manual of Mental Disorders (DSM-5) does not include hypersexual disorder as a formal diagnosis, but it is acknowledged in the ICD-11 as CSBD. Key Characteristics of Hypersexuality: – Obsessive sexual thoughts and fantasies – Compulsive behaviors, such as frequent masturbation, pornography use, or promiscuity – Engagement in risky or harmful sexual activities despite negative consequences – Emotional distress associated with uncontrollable sexual urges – Impact on daily life, including work, relationships, and self-care While some individuals with hypersexuality may seek frequent sexual encounters, others may engage in solo activities like excessive masturbation or pornography consumption. Etiology: What Causes Hypersexuality? Hypersexuality can stem from a range of biological, psychological, and social factors. It is important for clinicians to consider the multifactorial nature of this condition when assessing and treating patients. Neurobiological Factors Hypersexuality may be linked to dysregulation in the brain’s reward pathways, particularly the dopamine system. Some studies suggest that hypersexual individuals show heightened activation of the brain’s pleasure centers in response to sexual stimuli. This dysregulation mirrors addictive behaviors seen in substance use disorders, leading some researchers to conceptualize hypersexuality as a type of behavioral addiction. – Hormonal influences: Elevated levels of testosterone, estrogen, and dopamine have been implicated in driving excessive sexual desire in some individuals. – Neurological disorders: Certain conditions, such as bipolar disorder, Parkinson’s disease, or frontal lobe damage, can result in hypersexual behavior. Additionally, some medications (e.g., dopamine agonists used to treat Parkinson’s) can trigger hypersexuality as a side effect. Psychological Factors – Mood disorders:  Hypersexuality is often associated with underlying mental health conditions such as depression, anxiety, or bipolar disorder. During manic episodes in bipolar disorder, individuals may experience heightened sexual arousal and risky behaviors. – Trauma and abuse: A history of sexual abuse or trauma may contribute to hypersexual behaviors as a coping mechanism. These individuals may use sex to regulate emotions or gain a sense of control. Cultural and Social Factors – Cultural norms: Societal views on sexuality and the permissiveness of sexual behaviors can influence the manifestation of hypersexuality. In some cases, hypersexual behavior may reflect a cultural or religious conflict regarding sexual desires. – Access to technology: The widespread availability of pornography and dating apps may exacerbate hypersexual behaviors, making it easier to engage in compulsive sexual activities. Clinical Presentation and Diagnosis The diagnosis of hypersexuality can be challenging, as sexual desire and behavior exist on a wide spectrum. Clinicians must distinguish between high, but normal, sexual drive and problematic hypersexual behavior. The key factor is distress when an individual’s sexual urges cause significant emotional pain, impair social functioning, or lead to harmful consequences, intervention is warranted. Treatment Approaches Treating hypersexuality requires a multifaceted approach that addresses underlying psychological, biological, and social factors. Depending on the individual’s circumstances, therapy, medication, and behavioral interventions may be employed. Psychotherapy – Cognitive Behavioral Therapy (CBT): CBT is considered the first-line treatment for hypersexuality. It helps patients identify and challenge maladaptive thought patterns and behaviors. Techniques such as cognitive restructuring, behavioral modification, and impulse control strategies are key components. – Trauma-informed therapy: For individuals with a history of trauma or abuse, addressing the root cause of their hypersexual behavior is crucial. Therapies like Eye Movement Desensitization and Reprocessing (EMDR) or trauma-focused CBT may be beneficial. – Group therapy: Support groups such as Sex Addicts Anonymous (SAA) or other peer-led programs provide a nonjudgmental environment for individuals to share experiences and learn coping strategies. Pharmacotherapy Medication may be helpful for individuals whose hypersexual behavior is linked to mood disorders, impulsivity, or hormonal imbalances. – SSRIs (Selective Serotonin Reuptake Inhibitors): Commonly used to treat depression and anxiety, SSRIs may reduce sexual desire and compulsive behaviors. – Anti-androgens: In some cases, medications that reduce testosterone levels (e.g., medroxyprogesterone acetate) may be used to lower sexual drive. – Mood stabilizers and antipsychotics: For patients with bipolar disorder or other psychiatric conditions, mood stabilizers (e.g., lithium) or antipsychotic medications may help manage hypersexuality. Behavioral Interventions – Impulse control training: Techniques such as delayed gratification, mindfulness, and distraction can help patients resist urges. – Relapse prevention: Helping patients identify triggers for hypersexual behaviors and develop strategies to avoid them is critical in long-term management.

FMGE, GIST, INICET, NEET PG

Gastrointestinal Stromal Tumors (GIST)

Gastrointestinal Stromal Tumors (GIST) Diagnosis, Treatment, and Mnemonics for Clinicians Gastrointestinal stromal tumors (GIST) are the most common mesenchymal tumors of the gastrointestinal (GI) tract, originating from the interstitial cells of Cajal, which regulate peristalsis. While GISTs can occur anywhere along the GI tract, the stomach (60%) and small intestine (30%) are the most frequent sites. Though relatively rare, comprising about 1-3% of GI malignancies, recognizing and managing GISTs is crucial due to their potential for malignancy. Let’s break down the key aspects of GISTs: their pathophysiology, diagnosis, and treatment, with useful mnemonics to aid recall in clinical practice. Pathophysiology of GISTs Most GISTs result from activating mutations in the c-KIT proto-oncogene, encoding a tyrosine kinase receptor (CD117). A minority involves mutations in the platelet-derived growth factor receptor alpha (PDGFRA) gene. Both mutations drive uncontrolled cellular proliferation. Mnemonic: “C-KIT Powers LAFRA ( lafra in hindi)  – C-KIT mutation – Platelet-derived Growth Factor Receptor Alpha (PDGFRA) mutation Clinical Presentation GISTs can remain asymptomatic for a long time or present with nonspecific symptoms. Typical symptoms depend on the tumor’s location and size and may include: – Abdominal pain or discomfort – GI bleeding (occult or overt) – Fatigue due to anemia – Early satiety or bloating – Unintentional weight loss Mnemonic: “BAG-A Tumor” (Symptoms of GIST) – Bloating – Abdominal pain – GI bleeding – Anemia – Tumor mass effect (satiety, discomfort) Diagnosis of GISTs The diagnosis of GIST is confirmed through a combination of clinical evaluation, imaging, and histopathology. Key diagnostic tools include: Endoscopy and Imaging: Endoscopic ultrasound (EUS) or contrast-enhanced CT scans are often used to visualize the tumor and assess its size, location, and metastasis. Biopsy and Immunohistochemistry: Histopathology from biopsies typically reveals spindle-shaped or epithelioid cells. Immunohistochemistry is crucial, with over 95% of GISTs staining positive for CD117 (C-KIT) and around 60-70% for DOG1 (Discovered on GIST-1). Mutation Testing: Genetic testing to identify c-KIT and PDGFRA mutations guides targeted therapy decisions. Must know facts about GIST Treatment of GISTs The treatment of GISTs hinges on the size, location, and risk of malignancy, but most tumors require surgical resection. However, the advent of tyrosine kinase inhibitors (TKIs) like imatinib has revolutionized the management of unresectable or metastatic GISTs. Imatinib targets the c-KIT mutation, which drives most GISTs. Surgical Resection: For localized tumors, surgery is the mainstay of treatment, often leading to curative outcomes if the entire tumor is removed without rupture. Targeted Therapy Imatinib is the first-line treatment for unresectable or metastatic GISTs, as well as adjuvant therapy in high-risk patients post-surgery. For those resistant to imatinib, second-line therapies include sunitinib and regorafenib. Prognosis and Follow-Up The prognosis for GIST depends on factors such as tumor size, mitotic rate, and the presence of metastasis. GISTs under 2 cm with low mitotic rates have an excellent prognosis. Larger or metastatic tumors, or those with a high mitotic index, require long-term follow-up and adjuvant therapy. Regular monitoring via imaging (CT or MRI) is critical to detect recurrence. Mnemonic: “RISK” for prognosis – Recurrence monitoring (via imaging) – Imatinib (adjuvant therapy for high-risk patients) – Size of the tumor – KIT mutation status (guides therapy) Conclusion GISTs are rare but significant tumors that require a multidisciplinary approach for optimal management. Through a combination of surgery, targeted therapies, and vigilant monitoring, outcomes for patients with GIST have improved significantly. #INICET #FMG #NEETPG #USMLE

FMGE, INICET, NEET PG

Mitral Valve Prolapse

Not a single drop of blood can ever leak from our ventricle to atria in entire life time. During the phase of systole, left ventricle will generate force to send blood into aorta. This will also put substantial stress on mitral valve leaflets but the bicuspid mitral valve leaflets are able to hold their position all thanks to infrastructure of chordae tendinae and papillary muscles attached underneath the valve.   But in MVP there is undue bulging of leaflets of mitral valve into LA due to lose and lax chordae tendinae. I want you to imaging these chordae tendinae as rubber bands attached to undersurface of valve leaflets. Now due to undue stretching of these chordae tendinae, vibrations are set up that are auscultated by you as mid systolic clicks. Do not confuse with ejection sound/click which occurs due to opening of aortic and pulmonic valves. So why are we worried about this condition Defective coaptation of leaflets that will cause murmur and pulmonary edema Undue stress on papillary muscles that will cause ischemia of adjacent myocardium Worst case scenario: Snapping of chordae tendinae causing incompetent valve. This will cause blood to back up into lung circulation causing pulmonary edema. Causes of MVP Mnemonic: MEAN Myxomatous degeneration of valve Marfan syndrome Ehler danlos syndrome ADPKD ASD Straight back SyNdrome Clinical features Asymptomatic Chest pain due to ischemia of myocardium Dyspnea. Orthopnea due to incompetent valve causing pulmonary edema Arrythmias: PVC / Ventricular bigeminy, Ventricular tachycardia, PSVT and Atrial fibrillation On examination Mid systolic click Late systolic murmur (Do not mix with harsh ejection systolic murmur of aortic stenosis.) Changes in murmur with squatting and standing Squatting: shorter duration Standing: longer duration Investigation of choice: Echocardiography shows anterior or posterior mitral leaflet to prolapse greater than 2 mm in mitral annular plain. Treatment: Mitral valve repair with beta blockers is the mainstay of treatment   #NEETPG #FMGE #INICET

FMGE, INICET, Medicine

Heart Disease of Poverty

40-21 rule for duration of prophylaxis Rheumatic fever is the cause of heart disease of poverty. It is caused by type II hypersensitivity reaction/ molecular mimicry where antibodies against group A beta hemolytic streptococci cross react with N acetyl glucosamine which is present in endothelium of heart valves, synovium, basal ganglia and skin. Usual course of illness is 12 weeks and causes significant morbidity and mortality due to arthritis and carditis. With treatment course of illness is shortened to 1-2 weeks. Primary prevention for rheumatic fever Treat the sore throat with amoxicillin or penicillin within 9 days Secondary prevention for rheumatic fever Benzathine penicillin is given 3-4 weekly after test dose to prevent recurrent sore throats     Ideally in RF with valvular disease life long prophylaxis should be given as sore throats can occur any time. Recurrence will cause more antibody production and will cause accentuation of pre-existing damage. However due to practical issues the upper limit is set at 40 years. Penicillin must always be given after test dose. Due to risk of anaphylaxis adrenaline must be kept ready for use. Dose of adrenaline for anaphylaxis is 0.5 mg intramuscular 1:1000 dilution and can be repeated after 5-15 minutes. The following data is a must know for NEETPG, INICET and FMGE exams in India.  

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