Crisis Tech Solutions Ltd, Cariocca Business Park, Manchester (2026)

30/03/2026

🫀 Amiodarone in Emergency Practice: Dilution, Administration, and Role in Tachycardias

Author: Dimitar Nenchev | Crisis Tech Solutions | Medical Practice | Prehospital Care | Emergency Medicine

Amiodarone (Amiodarone) is one of the most important antiarrhythmic drugs in emergency medicine. Its use, however, requires a clear understanding of proper dilution, indications, and limitations—especially in the prehospital setting.

💧 Dilution and Compatibility

Ampoule: 50 mg/ml × 3 ml = 150 mg

✔️ Dilute only in 5% glucose (G5%)
❌ Do NOT dilute in 0.9% NaCl → risk of precipitation
❌ G10% and G20% are NOT recommended → hyperosmolarity and risk of phlebitis

📌 Practice:
• Bolus: 150 mg in 10–20 ml G5% over ≥10 minutes
• Infusion: 150 mg in 100 ml G5% over 10–20 minutes
• Maintenance: 300–900 mg in 500 ml G5%

⚠️ Key Considerations in Administration

🔸 Prefer central venous access
🔸 Use an infusion pump
🔸 Monitor: blood pressure, ECG, QT interval
🔸 Risks: hypotension and bradycardia

🫀 Use in Tachycardias

🔹 Ventricular Tachycardia (VT/VF)
✔️ First-line in many ERC/AHA algorithms
✔️ Suitable for both stable and unstable patients

🔹 Narrow-Complex Tachycardia (SVT)
👉 QRS < 120 ms → supraventricular origin

✔️ Can be used, but not first-line

Rhythm-based approach:

🔸 Regular SVT (AVNRT/AVRT)
➡️ First-line: vagal maneuvers + Adenosine
➡️ Amiodarone: second-line if ineffective or contraindicated

🔸 Atrial fibrillation / flutter (AF/AFL)
✔️ Appropriate choice, especially in:
• heart failure
• hemodynamic instability
• limited alternatives

➡️ Effects:
• rate control
• possible pharmacological cardioversion

🔸 Uncertain tachycardia (wide or unclear complex)
✔️ Treat as VT → amiodarone is a safe option

❗ Cautions

🔸 WPW + atrial fibrillation → risk of degeneration into VF
🔸 Bradycardia / AV block
🔸 Hypotension

🚑 Practical Prehospital Algorithm

👉 Narrow regular tachycardia:
1. Vagal maneuvers
2. Adenosine
3. Amiodarone (second-line)

👉 Narrow irregular tachycardia (AF):
✔️ Amiodarone is appropriate

👉 Wide complex or unclear rhythm:
✔️ Assume VT → use amiodarone

📌 Conclusion

Amiodarone is a powerful and versatile antiarrhythmic, but not universally first-line. It has the greatest value in ventricular arrhythmias, atrial fibrillation with comorbidities, and undifferentiated tachycardias. Proper dilution with G5% and sound clinical judgment are essential for safe and effective use in emergency practice.

https://crisissolutions.info

🚑
🏥
⚡
❤️
📈
🚨
🧠
📚

27/03/2026

SMB in Diving – The Signal That Can Save Your Life

Author: Dimitar Nenchev | Crisis Tech Solutions
Medical Practice | Prehospital Care | Emergency Medicine

🚨 Did you know that a small buoy can make the difference between being lost and being found?

🎥 The SMB (Surface Marker Buoy) is not just gear – it’s your communication line with the surface when you’re invisible underwater.

🌊 Imagine this: strong current, drifting away, no visual contact with the boat… and then you deploy your SMB – a clear signal that says “I’m here.”

⚠️ In this video, you’ll see:
✔️ How to properly deploy an SMB
✔️ The most common mistakes (and how to avoid them)
✔️ Professional techniques for controlled ascent

💡 The truth is simple: it’s not just about how well you dive… it’s about how safely you return.

👉 Watch the full video and understand why every diver must master this skill!

🔥 Follow for more real-world, life-saving knowledge from practice.

25/03/2026

🫀 How to Determine the Heart’s Electrical Axis (EOS) in 10 Seconds

👁️ Imagine you have two eyes looking at the heart:
➡️ Lead I – looks from the left
⬇️ aVF – looks from below

👉 Your task: check if the QRS complex is positive (+) or negative (–)

📊 The combinations tell you everything:

✅ I (+) + aVF (+) → Normal axis (0° to +90°) ↙️
❌ I (+) + aVF (–) → Left axis deviation ↖️
❌ I (–) + aVF (+) → Right axis deviation ↘️
🚫 I (–) + aVF (–) → Extreme axis (“northwest axis”) ↗️

🧠 Easy association:
👉 “Both positive = everything is normal”

🧭 Think like a compass:
⬅️ Lead I = left (0°)
⬇️ aVF = down (+90°)
👉 Normal axis lies between them (↙️)

⚡ Quick emergency tip:
➡️ Look only at Lead I:
➕ Positive → think “left”
➖ Negative → think “right”

🎯 Why it matters:

🫁 Right axis → possible pulmonary problems
❤️ Left axis → LV hypertrophy or conduction block
⚠️ Extreme axis → serious pathology

👉 Don’t focus on degrees at first — focus on direction

19/03/2026

Massive thrombus in the left atrium in non-valvular atrial fibrillation

Author: Dimitar Nenchev | Crisis Tech Solutions | Medical Practice | Prehospital Care | Emergency Medicine

🎥 This clip demonstrates a massive thrombus in the left atrium, identified by transesophageal echocardiography (TEE) in a patient with non-valvular atrial fibrillation.

🫀 What is happening?
In atrial fibrillation, effective atrial contraction is impaired, leading to blood stasis—especially in the left atrial appendage. This creates ideal conditions for thrombus formation.

⚠️ Why is it dangerous?
A massive thrombus in the left atrium carries a high risk of embolization → ischemic stroke, systemic embolism, or peripheral arterial occlusion. This is one of the most serious complications of atrial fibrillation.

🔍 Diagnosis
Transesophageal echocardiography is the gold standard for detecting intracardiac thrombi, particularly in the left atrial appendage. It provides high-resolution, direct visualization.

💊 Treatment
Anticoagulation therapy with warfarin remains a classic and effective approach in such patients. The goals are:
✔️ Prevent further thrombus growth
✔️ Reduce the risk of embolic events
✔️ Maintain a therapeutic INR (typically 2.0–3.0)

📌 Clinical note
In the presence of a confirmed thrombus, cardioversion is contraindicated until adequate anticoagulation is achieved due to the high risk of embolization.

🧠 Key message
Atrial fibrillation is not a “benign arrhythmia.” It is a major risk factor for thromboembolic events and requires timely diagnosis and proper management.

🚑
🏥
⚡
❤️
📈
🚨
💉
📚

26/02/2026

💡 Did you know…

🩸 In cases of low blood pressure, simply elevating the legs for 30–60 seconds can have an effect comparable to administering 300–500 ml of normal saline (sodium chloride).

⬆️ When we raise the lower limbs, we use gravity to shift venous blood from the legs back toward the heart.

❤️ This increases venous return (preload)
📈 Enhances cardiac output
🧠 Improves cerebral perfusion

⚡ The result is often rapid improvement of symptoms such as dizziness, weakness, and presyncope.

🔎 This is a simple, fast, and highly effective maneuver in prehospital settings — especially when immediate IV access is not available.

Sometimes the most effective “infusion” is body positioning.

24/02/2026

Sometimes the most complex anatomy can be explained in the simplest way. 🫀

A powerful visual reminder of cardiac anatomy — chambers, great vessels, and coronary circulation — all mapped in the palm of a hand.

Understanding structure means understanding function. And understanding function saves lives.

07/02/2026

The illustration depicts the venous system and dural venous sinuses of the brain in a lateral view, rendered with high anatomical accuracy and labelled entirely in Latin in accordance with Terminologia Anatomica. Colour coding is used to clearly differentiate between superficial cortical veins, the deep venous system, and the dural venous sinuses.

Along the superior midline, the sinus sagittalis superior is shown, collecting venous blood from the superficial cerebral veins, including the vena frontalis anterior, vena frontalis posterior, and venae parietales. The connection between the superficial venous network and the dural sinuses is illustrated by the vena anastomotica superior (vena Trolardi), which drains into the superior sagittal sinus.

The deep venous system is represented by the vena cerebri interna, which on both sides converges to form the vena cerebri magna (vena Galeni). This major venous trunk drains into the sinus re**us, which continues posteriorly and empties into the sinus transversus.

Venous drainage from the basal regions of the brain is demonstrated by the vena basalis (vena Rosenthali), which collects blood from deep temporal and diencephalic structures and contributes to the deep cerebral venous outflow towards the vein of Galen.

In the posteroinferior region of the illustration, the transition from the sinus transversus to the sinus sigmoideus is clearly shown. The sigmoid sinus exits the cranial cavity as the vena jugularis interna, the principal venous pathway responsible for draining blood from the brain into the systemic circulation.

Overall, the illustration provides a clear and structured overview of the anatomical relationships between the superficial and deep venous systems of the brain. It is particularly suitable for educational and clinical reference in neurology, neurosurgery, diagnostic imaging, and emergency medicine.

31/01/2026

Fall From Height: Mechanism of Injury and Clinical Implications

Author: Dimitar Nenchev | Crisis Tech Solutions | Medical Practice | Prehospital Care | Emergency Medicine

🔹 Mechanism of Injury
A fall from height represents a high-energy transfer of force. The mechanism involves vertical acceleration followed by abrupt deceleration, resulting in the transmission of kinetic energy through the body. This energy is primarily absorbed by the spine, pelvis, lower extremities, and internal organs. Even from a height such as the first floor, the forces involved are sufficient to cause significant internal damage, regardless of external appearance.

🔹 Possible Injuries
🦴 Fractures are commonly seen in the ankles, heels (calcaneus), tibia, femur, and pelvis due to axial loading.
🦴 Compression fractures of the spine, particularly at the thoracolumbar junction (T12–L2), are frequent and may initially be clinically silent.
🧠 Traumatic brain injury can occur even in the absence of loss of consciousness.
🫁 Pulmonary contusion may result from rapid deceleration and blunt chest impact.
🫀 Internal hemorrhage involving solid organs such as the spleen or liver must always be considered.

🔹 Clinical Classification
From an emergency and trauma medicine perspective, a fall from height is classified as high-energy blunt trauma. Until thorough assessment and imaging exclude serious injury, the patient should be managed as having a polytrauma mechanism.

🔹 Key Clinical Rule
The absence of severe pain or visible injuries does not rule out serious internal trauma. Delayed presentation of symptoms is well documented, and clinical deterioration may occur hours after the initial event. A high index of suspicion and appropriate monitoring are essential.

🚑
⚕️
🦴
💥
🚨
🫀
📚
🏥

24/01/2026

The Human Skeletal System
Author: Dimitar Nenchev | Crisis Tech Solutions | Medical Practice | Prehospital Care | Emergency Medicine

🦴 The skeletal system is the structural framework of the human body. It is made up of 206 bones, along with cartilage, ligaments, and joints, working together to support the body and protect vital organs.
🧠 It safeguards critical structures such as the brain, spinal cord, heart, and lungs, while also maintaining posture and stability.
🏃 Movement is made possible through the interaction between bones and muscles, allowing everything from basic actions to complex physical activity.
🩸 Bone marrow plays a crucial role in producing blood cells, while bones also store essential minerals such as calcium and phosphorus, vital for overall physiological balance.

Strong bones mean a strong foundation for life and clinical performance, especially in emergency and prehospital care.

11/01/2026

🫀 The Sixth Heart Sound – the Bulgarian Discovery That Changed Cardiology

Did you know that one of the very few world-recognized medical discoveries made by a Bulgarian is related to the sound of the heart? 🔊🫀 This is not a myth, but science — and behind it stands Professor Ivan Mitchev.

📌 For decades, medicine accepted that the heart has four sounds, with only the first and second used routinely in clinical practice. In 1968, however, Professor Mitchev proved the existence of the sixth heart sound — objectively recorded, scientifically analyzed, and accepted by the international cardiology community. This was not a hypothesis, but a fact that entered medical textbooks.

🔍 What makes this discovery so important? The sixth heart sound provides additional insight into the functional state of the myocardium, especially in early pathological changes. This allows for better diagnostics, earlier disease recognition, and more informed clinical decision-making.

🎓 Professor Mitchev was not only a discoverer. He was a physician, a teacher, and the founder of a medical school — a man who demonstrated that Bulgarian medicine can contribute at a global level, not merely follow established foreign models.

❗ In an era of fast medicine and rigid protocols, it is worth remembering that true progress comes from observation, critical thinking, and the courage to challenge what is “accepted.” That is exactly what Ivan Mitchev did.

09/01/2026

The Manual Ventilation Bag – The Importance of Tactile Feedback During Anesthesia Induction

Author: Dimitar Nenchev | Crisis Tech Solutions
Medical Practice | Prehospital Care | Emergency Medicine

The manual ventilation (reservoir) bag is a fundamental component of the anesthesia breathing system and represents the clinician’s first direct connection to the patient’s respiratory mechanics during induction. Beyond its basic function of delivering tidal volumes, it provides immediate, real-time tactile feedback regarding lung compliance, airway patency, and resistance within the respiratory system.

During anesthesia induction, the transition from spontaneous to assisted or controlled ventilation is a critical phase. By ventilating manually, the clinician can assess changes in lung compliance, detect increased airway resistance, and evaluate the effectiveness of mask seal or airway positioning. This information is transmitted directly through the hand, often before changes are visible on monitors such as pulse oximetry or capnography.

The “feel” of the bag is a clinical skill developed through experience. Increased stiffness may indicate laryngospasm, bronchospasm, airway obstruction, or poor positioning of the airway device. Conversely, an unusually compliant or easily compressed bag may suggest circuit leaks, hypoventilation, or inadequate airway seal. This tactile assessment allows for rapid clinical decision-making and immediate corrective actions.

From a patient safety perspective, manual ventilation with continuous tactile feedback enables early recognition of potentially life-threatening conditions before hypoxemia, hypercapnia, or hemodynamic instability develop. Timely adjustment of ventilation pressure, volume, and rate helps prevent barotrauma, volutrauma, and hypoxic injury, particularly during the most vulnerable moments of anesthesia induction.

Despite advances in ventilator technology and monitoring systems, the manual ventilation bag remains irreplaceable. It conveys information that cannot be fully quantified or digitized. Proper understanding and skilled use of the manual ventilation bag, as emphasized by Crisis Tech Solutions, are essential elements of safe anesthesia practice and high-quality patient care in acute and critical settings.

04/01/2026

3% Sodium Chloride – How It Reduces Brain Swelling
Author: Dimitar Nenchev | Crisis Tech Solutions
Medical Practice | Pre-Hospital Care | Emergency Medicine

Brain swelling (cerebral oedema) is a serious condition in which the volume of brain tissue and fluids increases, raising intracranial pressure and the risk of ischaemia or herniation.

How does 3% NaCl work?
This hypertonic solution draws water from brain cells into the bloodstream via osmosis, reducing cellular and interstitial oedema.
This lowers intracranial pressure and improves cerebral perfusion, ensuring the brain receives the oxygen and nutrients it needs.

💧 Osmotic effect – water moves from swollen cells into the blood
❤️ Supports cerebral perfusion pressure (CPP)
⚖️ Restores electrolyte balance and reduces the risk of further injury

Emergency medicine applications
3% NaCl is commonly used in acute situations such as trauma, stroke, or brain tumours. Its administration requires careful monitoring of serum sodium to avoid hypernatraemia.

Crisis Tech Solutions Ltd

30/03/2026

27/03/2026

25/03/2026

19/03/2026

26/02/2026

24/02/2026

07/02/2026

31/01/2026

24/01/2026

11/01/2026

09/01/2026

04/01/2026

Address

Telephone

Website

Alerts

Shortcuts

Share