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NYSORA Nerve Blocks App 2026

The world's most detailed nerve blocks guide.
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Ultrasound-Guided Interventional Pain Procedures Manual

A comprehensive, step-by-step guide covering pain procedures across all anatomical regions.
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Anesthesiology

Explore critical topics, techniques, and anesthesia trends.
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Regional Anesthesia

Step-by-step guides, nerve blocks, and clinical best practices.
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Pain Management

Access interventional techniques and real-life case studies.
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IV Access

Master routine and challenging IV access with practical tips.

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POCUS

Deep venous thrombosis (DVT)

Risk factors and signs
Anesthesia

Videolaryngoscopy

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Anesthesia

Fiberoptic intubation

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Upper Extremity Surgeries

Ultrasound-Guided Supraclavicular Brachial Plexus Nerve Block

Master the supraclavicular brachial plexus block in the NYSORA Nerve Blocks App.
Anesthesia Manual

Lung protective ventilation 

Learning objectives
Topics

Epidural Anesthesia and Analgesia

Note: If you are looking for information regarding Epidural Anesthesia and Analgesia for patients, click here.
Pain Management

Ultrasound-Guided Blocks for Pelvic Pain

Chronic pelvic pain (CPP) is defined as noncyclic pain of at least 6 months duration, severe enough to cause disability or seeking of medical attention, and occurring in locations such as the pelvis, anterior abdominal wall at or below the umbilicus, lower back, or buttocks. The pathophysiology of CPP is complex. The source of pain may include the viscera (urologic, gynaecologic, and anorectal) and neuromuscular system (e.g. pudendal neuralgia, piriformis syndrome). Furthermore, the clinical presentation is often influenced by psychological factors. Therefore, a multidisciplinary approach to management is recommended. As part of this management plan, neural block and injection of muscles within the pelvis play both diagnostic and therapeutic roles. The methods of neural block in the past were either landmark-based (blind) or equipment-guided techniques. The latter are indirect methods providing surrogate markers (such as bony landmarks for the nerve in fluoroscopy) or electrophysiological changes (such as nerve stimulation or electromyography). Both of these have intrinsic limitations in precisely locating a soft tissue structure. In either method, the nerve or muscle of interest is not reliably visualized. The emergence of ultrasound guidance to assist in needle placement and injection has provided the pain clinician with many benefits over previous modalities. Among the advantages of ultrasound are improved visualization of the nerve and surrounding vascular, bony, muscular, and visceral structures, more precise deposit of medication in the vicinity of the nerve of interest, and real-time guidance for needle advancement, thereby improving targeting and reducing inadvertent damage to surrounding neurovascular structures, as well as making it possible to better identify intravascular and intraneuronal injection. Furthermore, the relatively easy access to ultrasonography and its portability and lack of radiation exposure make it an attractive imaging modality for the interventional pain physician. This chapter concentrates on anatomy, sonoanatomy, and ultrasound-assisted techniques for needle placement in three procedures associated with CPP: (1) ilioinguinal, iliohypogastric, and genitofemoral nerve block, (2) piriformis muscle injection, and (3) pudendal nerve block.
Anesthesia

Hypovolemia

Learning objectives
Lower Extremity Blocks

Ultrasound-Guided Fascia Iliaca Nerve Block

Learn the fascia iliaca block step by step in the NYSORA Nerve Blocks App.
Lower Extremity Surgeries

Ultrasound-Guided Saphenous (Adductor Canal) Nerve Block

Review the adductor canal block step by step in the NYSORA Nerve Blocks App.
Obstetrics

Amniotic fluid embolism

Learning objectives
Pain Management

Ultrasound-Guided Thoracic Paravertebral Block

Thoracic paravertebral block (TPVB) is the technique of injecting local anesthetic alongside the thoracic vertebral body close to where the spinal nerves emerge from the intervertebral foramen. This produces unilateral (ipsilateral), segmental, somatic, and sympathetic nerve block in multiple contiguous thoracic dermatomes, which is effective for managing acute and chronic pain of unilateral origin from the thorax and abdomen. Recently, TPVB has also been used for surgical anesthesia in patients undergoing inguinal herniorrhaphy and breast surgery with improved postoperative outcomes.
Anesthesia

Local anesthetic systemic toxicity (LAST)

Learning objectives
Upper extremity blocks

Ultrasound-Guided Axillary Brachial Plexus Block

Reliable distal upper-extremity anesthesia.
POCUS

Gastric content assessment

Indications 
Anesthesia

Total intravenous anesthesia (TIVA)

Learning objectives
Pain Management

Ultrasound-Guided Transversus Abdominis Plane (TAP) Block

Need to see the plane clearly?
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The World's Most Detailed Nerve Blocks Guide

Everything you need to learn or teach nerve blocks.

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The First AI Assistant Built for Anesthesiologists

Trusted worldwide. Backed by experts. Designed for effective, real-time educational support.

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Your Interactive Companion for Intravenous Catheterization

Master routine and challenging IV Access with the ultimate and most practical Go-To App.

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The Essential App for Pain Interventions

Access a concise and practical guide on 50+ ultrasound-guided interventional pain procedures.

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A Clinically Oriented Approach to Point-of-Care Ultrasound

Master your emergency diagnostics skills on the go!

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Discover the NYSORA YouTube channel for free educational content and insights in anesthesiology and pain medicine.

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@nysoravideo


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  • 315 videos

Discover the NYSORA YouTube channel for free educational content and insights in anesthesiology and pain medicine.

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Anasthesiology Updates

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DIFFICULT IV: FIND MISTAKES!

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The pregnant and postpartum stomach
The pregnant and postpartum stomach
Education
The pregnant and postpartum stomach
Mode of anesthesia for placenta accreta spectrum
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Mode of anesthesia for placenta accreta spectrum
Ultrasound-guided thoracic paravertebral block for herpes zoster pain
Ultrasound-guided thoracic paravertebral block for herpes zoster pain
Education
Ultrasound-guided thoracic paravertebral block for herpes zoster pain
Rethinking shoulder analgesia: the evolving role of the axillary nerve in regional anesthesia
Rethinking shoulder analgesia: the evolving role of the axillary nerve in regional anesthesia
Education
Rethinking shoulder analgesia: the evolving role of the axillary nerve in regional anesthesia
Perioperative care for geriatric patients
Perioperative care for geriatric patients
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