Sympathetic blocks may help evaluate or temporarily reduce selected CRPS, autonomic pain, pelvic pain, foot pain, or complex nerve pain patterns.
Sympathetic nerve blocks can help diagnose and treat certain types of chronic pain by calming an overactive nervous system. Dr. Siefferman explains how these procedures work, when they're used, and how they fit into a personalized treatment plan.
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Hi, I’m Dr. Jason Siefferman, medical director at Manhattan Pain Medicine and interventional pain specialist. The sympathetic nervous system is responsible for sensation of the internal organs including our arteries and a lot of other internal structures and it’s also responsible for the fight-or-flight response, our sense of panic, urgency.
Sympathetic nervous system has ganglia throughout the body which serve as the hubs for this part of the nervous system. If we start at the top, there is the stellate ganglion. And of course, from here, there’s the mid-cervical ganglion and the superior cervical ganglion. All part of the sympathetic chain that goes up to the head going south. The celiac plexus controls the stomach, pancreas, um some of those middle abdominal organs. And then we can go down to the superior inferior hypogastric plexus. And then down to the ganglion impar, which actually controls the um the pelvis. And depending on where there is pain, we may discuss a sympathetic block where we place local anesthetic on that hub to reboot it.
This is a situation where we don’t need steroid. It is purely local anesthetic. And unlike the other nerves in the body, the sympathetic ganglia when they are exposed to local anesthetic often experience a reboot, meaning that the sensitization of pain that has built up will often go back to zero. And it may take a while for that sensitization to rebuild. When we think about sympathetic pain, sympathetic pain, it’s often hard for patients to describe. It’s often nebulous. It’s poorly demarcated and it’s often excruciating.
I’ll describe it as like the flames of a fire where the flames are so big you can’t actually see what’s on fire. When there is sympathetically mediated pain and we don’t know why it’s occurring or even if we think we know why it’s occurring, we’ll often want to douse the flames so that we can better identify what continues to drive the pain. That’s absolutely what we have to identify and treat in order to get a durable pain relief. Sometimes the sympathetic pain is just left over. We see this with endometriosis where someone had endometriosis surgery but they actually still have the same pain after the surgery that they had before the surgery.
This is a situation where the nervous system, the flames are still burning. The nervous system is still sensitized even though there’s not a good reason for it to be. And in that situation, that’s where that reboot is actually tremendously helpful. Sometimes just doing the block gives us a tremendous amount of information about what’s going on in the body and helps us guide treatment to the next steps.
Sympathetic blocks are targeted injections used to evaluate or temporarily reduce pain that may involve the sympathetic nervous system. This system can influence pain signaling, blood flow, sweating, temperature changes, swelling, and other autonomic features. Sympathetic blocks may be considered for selected patients with CRPS, complex regional pain, pelvic pain, abdominal-region pain, foot or lower extremity pain, peripheral neuropathic pain, or pain that changes with temperature, color, sweating, or circulation.
At Manhattan Pain Medicine, sympathetic blocks NYC care begins with diagnosis-first evaluation to determine whether a sympathetic block is appropriate and which type of block best matches the pain pattern.
MPM specialists evaluate whether a sympathetic block may be appropriate by carefully reviewing the patient’s pain pattern, autonomic symptoms, diagnosis, prior treatments, and safety factors. Pain with temperature changes, color changes, sweating, swelling, burning, hypersensitivity, or circulation-related symptoms may suggest sympathetic nervous system involvement, but similar symptoms can also come from vascular disease, nerve entrapment, neuropathy, pelvic floor dysfunction, musculoskeletal pain, inflammatory disease, or central sensitization.
MPM determines whether a stellate ganglion block, lumbar sympathetic block, ganglion impar block, superior hypogastric plexus block, or another approach may fit the patient’s presentation.
Patients often search for sympathetic nerve blocks in Manhattan when pain is severe, persistent, complex, or associated with autonomic changes. Symptoms may include burning pain, temperature sensitivity, color changes, sweating changes, swelling, hypersensitivity, circulation changes, pelvic pain, tailbone-region pain, abdominal pain, foot pain, or lower extremity symptoms. Many patients have already tried medication, physical therapy, nerve blocks, injections, pain psychology, pelvic care, neurology, or other specialist care.
MPM approaches sympathetic blocks as one part of a broader pain pathway, not a standalone cure. A sympathetic block may help determine whether pain is sympathetically maintained or sympathetically influenced. It may also provide temporary relief for selected patients. The response can help guide next steps, including medication management, pain psychology, biofeedback, rehabilitation, pelvic specialty care, dorsal root ganglion stimulation, spinal cord stimulation, or other neuromodulation options when clinically appropriate.
Sympathetic blocks fit within MPM’s Complex Chronic Pain, Autonomic dysfunction, and Psychology of Pain expertise because chronic pain can involve both peripheral pain generators and nervous system regulation. A patient may have CRPS, peripheral neuropathy, pelvic pain, abdominal-region pain, foot pain, pudendal neuralgia overlap, pelvic floor dysfunction, PGAD-related distress, or pain with autonomic features.
MPM uses sympathetic blocks as part of a coordinated, diagnosis-first care model. The block may provide useful diagnostic information or temporary relief, but it is rarely the entire care plan. Treatment may also include medication management, pain psychology, biofeedback, rehabilitation, pelvic care, peripheral nerve blocks, stellate ganglion blocks, ganglion impar blocks, spinal cord stimulation, dorsal root ganglion stimulation, or broader neuromodulation planning when appropriate.
Before a sympathetic block, MPM reviews the diagnosis, pain location, autonomic symptoms, prior treatment response, medications, medical history, risks, alternatives, and post-procedure instructions. The procedure target depends on the pain pattern. For example, a stellate ganglion block may be considered for selected upper body or upper extremity symptoms, while a lumbar sympathetic block may be considered for selected lower extremity symptoms. Pelvic or tailbone-region pain may require a different target, such as ganglion impar or related sympathetic pathways.
Patients may feel pressure, brief discomfort, warmth, numbness, dizziness, or temporary changes in the treated region. Relief may be temporary and can vary by diagnosis and patient response. MPM reviews the response to determine whether sympathetic involvement appears clinically meaningful and whether additional treatment, rehabilitation, pain psychology, or neuromodulation planning should be considered.
These guys are the best. I've been going here for over 6 years and their familiarity with my Schwannomatosis (most ppl have never even heard of it - its rather rare) and their ability to diagnose my CRPS quickly and accurately and then treat it like I was merely getting a flu shot is just incredible...
Highly recommended for those who need Pain Management. Everyone at Manhattan Pain Medicine is extremely nice and helpful. I have had very good interactions with both Dr. Siefferman and Dr. Louis. All of the staff is very responsive. 5 stars.
The providers at Manhattan Pain Medicine are exceptional. I wish I had found them 30 years ago!
I genuinely can’t say enough good things about the team at Manhattan Pain Medicine. I have MCAS, EDS, and an inflammatory autoimmune disease, and I’ve basically been searching for answers since I was a kid. I had years of unexplained inflammation markers, chronic pain, and allergic reactions despite...
I have a complex medical history and have seen a lot of doctors over the years. Dr. Mikaberidze and Dr. Siefferman each took the time to really listen and understand everything I had been dealing with. I also appreciated how they work together and communicated about my care. I left with a plan that...
Sharing my gratitude for the pleasant experience last week during my visit, the medical team provided great care and also treated my session as a learning experience, I left my session with a wealth of knowledge. A big thank you to the kind, and professional staff who welcomed me to the office as a...
I cannot say enough good things about Manhattan Pain Medicine. From the moment I walked in, I felt truly cared for and taken seriously. Dr. Nino Mikaberidze, Director of Rheumatology, is exceptional — knowledgeable, compassionate, and incredibly thorough. She takes the time to listen, explains every...
Dr Siefferman is the most thorough, patient doctor I have even been to. Currently I travel from miami to nyc to see him because his bed side manner and desire to help is incomparable.
ZocDoc
This practice is wonderful. I have been a patient of Dr. Siefferman’s since 2019 and he’s extremely helpful and kind. He has brought in a Rheumatologist who is also great. They handle very complex pain issues and always try to find new ways to help me.
Dr. Siefferman is an incredible doctor! He is extremely diligent and knowledgeable. It feels like you are his only patient. He invests a lot of time and effort into your injuries and concerns. I did not find these wonderful qualities with other pain specialists before, who were always rushed and som...
ZocDoc
Dr. Siefferman is a doctor who combines the old world bedside manner of doctors from my childhood (60 years ago) with a sta te of the art embrace of modern technology. It is always a pleasure to have an appointment with him...always has options and solutions to my medical issues. He is truly the doc...
ZocDoc
Dr. Siefferman is a genius. He is very informed and listens attentively.
ZocDoc
Dr. Siefferman and his entire team continue to be efficient, dedicated, and driven by precision and a genuine desire to give fantastic care. Will always recommend.
ZocDoc
Doctor Siefferman is fantastic. Have been seeing him for 5 years. Couldn’t recommend more.
ZocDoc
Dr. Siefferman is the ONLY doctor who has ever been able to diagnose my pain and treat it. He is hands down the best
ZocDoc
A sympathetic block is an injection used to target part of the sympathetic nervous system, which can influence pain signaling, blood flow, temperature, sweating, swelling, and other autonomic features. Sympathetic blocks may be considered for selected patients with CRPS, complex regional pain, pelvic pain, abdominal-region pain, foot pain, lower extremity pain, peripheral neuropathic pain, or pain with autonomic changes. At MPM, the decision begins with diagnosis-first evaluation.
A sympathetic nerve block places medication near a selected sympathetic nerve structure to temporarily interrupt sympathetic signaling in a specific region. This may help reduce pain or clarify whether the sympathetic nervous system is contributing to symptoms. Relief is often temporary and varies by patient. MPM uses the response to help guide treatment planning, which may include rehabilitation, medication management, pain psychology, neuromodulation, or additional specialty care.
Sympathetic blocks may be considered for selected pain conditions where sympathetic nervous system involvement is suspected. These may include CRPS, complex regional pain, pelvic pain, abdominal-region pain, foot or lower extremity pain, peripheral neuropathic pain, pain with temperature or color changes, and certain autonomic pain features. They are not appropriate for every chronic pain condition. MPM evaluates structural, neurological, vascular, pelvic, inflammatory, and centralized contributors before recommending treatment.
Sympathetic blocks may help selected patients with complex regional pain syndrome, especially when symptoms include burning pain, hypersensitivity, swelling, sweating changes, color changes, temperature changes, or circulation-related features. A lumbar sympathetic block may be considered for selected lower limb symptoms, while a stellate ganglion block may be considered for selected upper limb symptoms. Sympathetic blocks do not cure CRPS, but their response may help guide care.
Sympathetic blocks may be considered for selected pelvic pain patterns when sympathetic or autonomic pathways appear clinically relevant. Pelvic pain can also come from pelvic floor dysfunction, pudendal neuralgia, pelvic dystonia, endometriosis, abdominal or visceral sources, nerve entrapment, spine-related pain, or central sensitization. MPM evaluates the full pelvic pain picture before recommending a sympathetic block, ganglion impar block, superior hypogastric plexus block, pudendal nerve block, or another treatment.
Sympathetic blocks may be considered for selected abdominal, pelvic, or tailbone-region pain when symptoms suggest involvement of sympathetic or visceral pain pathways. For some tailbone, rectal, perineal, or pelvic-region symptoms, a ganglion impar block may be considered. Abdominal and tailbone pain can also require gastrointestinal, pelvic, surgical, or emergency evaluation depending on symptoms. MPM reviews red flags before recommending any injection pathway.
A lumbar sympathetic block may be considered for selected lower extremity pain patterns, including certain CRPS, neuropathic, autonomic, or circulation-related symptoms. Foot pain may also come from Morton’s neuroma, tarsal tunnel syndrome, peripheral neuropathy, vascular disease, joint disease, spine-related nerve pain, or mechanical foot conditions. MPM evaluates whether the pain appears sympathetically influenced before recommending a sympathetic block.
A lumbar sympathetic block is a sympathetic nerve block performed in the lower back region to target sympathetic pathways that may influence pain in the lower extremities. It may be considered for selected patients with lower limb CRPS, foot pain, neuropathic pain, or pain with autonomic features. MPM determines whether a lumbar sympathetic block is appropriate based on symptoms, diagnosis, anatomy, safety factors, and prior treatment response.
A stellate ganglion block is a sympathetic block performed near the stellate ganglion in the neck. It may be considered for selected pain or autonomic features involving the head, neck, upper chest, or upper extremity, including some CRPS patterns. It may cause temporary changes such as hoarseness, drooping eyelid, red eye, warmth, or swallowing changes. MPM reviews risks and appropriateness before recommending this block.
A ganglion impar block targets a sympathetic structure near the front of the coccyx and may be considered for selected tailbone, pelvic, rectal, perineal, or genital-region pain patterns. It may be relevant when symptoms suggest sympathetic or visceral pain pathway involvement. MPM evaluates whether pain is more likely related to pelvic floor dysfunction, pudendal nerve pain, spine pain, endometriosis, coccyx pain, or another source before recommending treatment.
Sympathetic blocks target part of the sympathetic nervous system, which can influence pain, circulation, sweating, temperature, and autonomic features. Peripheral nerve blocks target specific sensory or mixed nerves that carry pain signals from a defined body region. Both can be diagnostic or therapeutic. MPM chooses the approach based on pain location, autonomic symptoms, nerve mapping, diagnosis, imaging, prior treatment response, and care goals.
Sympathetic blocks can be diagnostic, therapeutic, or both. A diagnostic block may help determine whether the sympathetic nervous system contributes to a patient’s pain. A therapeutic block is intended to reduce symptoms for a period of time. Relief is often temporary, but it can still be clinically useful. MPM reviews the degree, timing, duration, and pattern of relief before recommending next steps.
Relief from a sympathetic block varies by diagnosis, target, medication, and patient response. Some patients may experience relief for hours or days, while others may notice longer improvement. Some patients may not respond. Relief is often temporary and does not guarantee long-term improvement. MPM uses the response to determine whether sympathetic involvement appears clinically meaningful and whether additional care should be considered.
Temporary relief can still provide useful diagnostic information. It may suggest that sympathetic pathways are contributing to pain and may help guide next steps. Depending on the response, MPM may consider rehabilitation, medication management, pain psychology, biofeedback, repeat evaluation, spinal cord stimulation, dorsal root ganglion stimulation, or other neuromodulation options. If the response is limited or absent, the diagnosis may need to be refined.
Risks may include pain flare, bruising, bleeding, infection, allergic reaction, temporary numbness or weakness, dizziness, low blood pressure, local anesthetic toxicity, vascular injury, nerve irritation, steroid-related side effects when steroids are used, incomplete relief, temporary relief only, or no relief. Stellate ganglion blocks may also cause temporary hoarseness, drooping eyelid, red eye, trouble swallowing, or breathing-related concerns. MPM reviews risks before treatment.
Sympathetic blocks may not be appropriate when symptoms do not suggest sympathetic involvement, when vascular, neurological, infectious, surgical, pelvic, gastrointestinal, or emergency evaluation should occur first, or when the risks outweigh the potential benefit. They are not a replacement for diagnosis, medication management, pain psychology, physical therapy, pelvic specialty care, vascular evaluation, neurology, surgery, neuromodulation evaluation, or emergency care when needed.
Before care begins, our team helps patients understand the practical side of treatment, including insurance verification, out-of-network benefits, cost-share estimates, self-pay options, and billing questions. We believe patients should have as much clarity as possible before moving forward.
If you are considering sympathetic blocks in NYC for CRPS, autonomic pain features, pelvic pain, abdominal-region pain, foot pain, peripheral neuropathy, or complex chronic pain, MPM can help determine whether this treatment may be appropriate. Your evaluation will consider your symptoms, autonomic features, diagnosis, prior treatments, safety factors, and care goals before any recommendation is made.
Sympathetic blocks are targeted injections used to evaluate or temporarily reduce pain that may involve the sympathetic nervous system. The sympathetic nervous system is part of the autonomic nervous system and can influence pain signaling, blood flow, sweating, temperature, swelling, and other body responses.
At Manhattan Pain Medicine (MPM), sympathetic blocks NYC care begins with diagnosis-first evaluation. The goal is to determine whether pain appears sympathetically maintained or sympathetically influenced, which block type may fit the pain region, and how the response may guide future care.
The sympathetic nervous system can become involved in some acute and chronic pain states. In certain patients, pain may be associated with temperature changes, color changes, swelling, sweating changes, circulation changes, burning pain, hypersensitivity, or severe sensitivity to touch.
These features may occur in CRPS and other complex pain conditions. However, autonomic changes do not automatically confirm one diagnosis. Similar symptoms can also occur with vascular disease, peripheral neuropathy, nerve entrapment, infection, inflammatory disease, pelvic floor dysfunction, spine-related pain, or central sensitization. MPM evaluates the full clinical picture before recommending a block.
Different sympathetic blocks are used for different regions of the body. A stellate ganglion block targets a sympathetic structure in the neck and may be considered for selected head, neck, upper chest, or upper extremity symptoms. A lumbar sympathetic block targets sympathetic pathways in the lower back region and may be considered for selected lower extremity or foot symptoms. A ganglion impar block may be considered for selected pelvic, tailbone, rectal, perineal, or genital-region pain patterns. A superior hypogastric plexus block may be considered in selected pelvic or abdominal-region pain patterns.
MPM selects the block based on pain location, autonomic features, suspected pain pathway, diagnosis, prior response, and safety considerations.
CRPS can involve severe pain, sensitivity, swelling, temperature changes, color changes, sweating changes, stiffness, and altered movement. Sympathetic blocks may be considered for selected patients when symptoms suggest sympathetic nervous system involvement. A lumbar sympathetic block may be considered for lower limb symptoms. A stellate ganglion block may be considered for upper limb symptoms.
A sympathetic block does not cure CRPS. It may provide temporary relief, help support participation in therapy, or provide information about whether sympathetic pathways are contributing to the pain. MPM uses the response to guide a broader care plan.
Sympathetic blocks may also be considered for selected pelvic pain, abdominal-region pain, tailbone-region pain, or foot and lower extremity pain. These cases require careful diagnosis because pain may come from multiple sources, including pelvic floor dysfunction, pudendal neuralgia, endometriosis, abdominal or gastrointestinal disease, peripheral neuropathy, Morton’s neuroma, tarsal tunnel syndrome, vascular disease, spine-related nerve pain, or central sensitization.
MPM determines whether a sympathetic block, peripheral nerve block, ganglion impar block, medication management, pelvic specialty care, vascular evaluation, neurology, or neuromodulation evaluation is more appropriate.
A sympathetic block may be diagnostic, therapeutic, or both. A diagnostic block may help determine whether sympathetic pathways are contributing to pain. A therapeutic block is intended to reduce symptoms for a period of time.
Relief may be temporary. Some patients may have meaningful improvement, while others may not respond. Temporary relief can still be useful because it may help guide treatment decisions, especially when considering rehabilitation, pain psychology, spinal cord stimulation, dorsal root ganglion stimulation, or other neuromodulation options.
Sympathetic blocks often work best as part of a larger care plan. For some patients, temporary relief after a block may make it easier to participate in physical therapy, pelvic therapy, desensitization, movement retraining, or functional restoration. Pain psychology and biofeedback may help patients work with nervous system arousal, fear of movement, medical trauma, stress-pain cycles, and flare management.
For selected patients with persistent CRPS, neuropathic pain, pelvic pain, or complex pain patterns, MPM may consider whether dorsal root ganglion stimulation, spinal cord stimulation, or other neuromodulation options should be discussed.
Risks can include pain flare, bruising, bleeding, infection, allergic reaction, temporary numbness or weakness, dizziness, low blood pressure, local anesthetic toxicity, vascular injury, nerve irritation, steroid-related side effects when steroids are used, incomplete relief, temporary relief only, or no relief. Stellate ganglion blocks may also cause temporary hoarseness, drooping eyelid, red eye, trouble swallowing, or breathing-related concerns.
Patients should seek urgent evaluation for chest pain, shortness of breath, fainting, new neurological deficits, sudden severe headache, severe abdominal or pelvic pain, bowel or bladder dysfunction, saddle anesthesia, limb discoloration, loss of pulses, severe swelling, fever, suspected infection, severe allergic reaction, or rapidly worsening symptoms.
For selected patients, a sympathetic block may be an important step in understanding complex pain and autonomic features. MPM’s role is to determine whether sympathetic involvement is likely and how the block fits within a coordinated, medically responsible pain care plan.
