Nelson Rosen

140 timestamped statements across 4 collections — auto-found in recorded discussions, each timestamp jumps to the exact moment.

Colorectal / ARM & Hirschsprung · guest expert

Featured diaries

Ep 106 · 7:05
There is a reflux called the recto anal inhibitory reflex. That when you blow a balloon up in the rectum and stretch the rectum, the sphincter should relax. That is a normal recto anal inhibitory reflex. But if the patient has Hirschsprung disease, that reflex, it's gone.
Ep 106 · 7:05
There is a reflux called the recto anal inhibitory reflex. That when you blow a balloon up in the rectum and stretch the rectum, the sphincter should relax. That is a normal recto anal inhibitory reflex. But if the patient has Hirschsprung disease, that reflex, it's gone.
Ep 43 · 7:05
There is a reflux called the recto anal inhibitory reflex. That when you blow a balloon up in the rectum and stretch the rectum, the sphincter should relax. That is a normal recto anal inhibitory reflex. But if the patient has Hirschsprung disease, that reflex, it's gone.
Ep 43 · 7:05
There is a reflux called the recto anal inhibitory reflex. That when you blow a balloon up in the rectum and stretch the rectum, the sphincter should relax. That is a normal recto anal inhibitory reflex. But if the patient has Hirschsprung disease, that reflex, it's gone.
Ep 60 · 4:17
if you're gonna just try to keep it open, you just have to keep it open enough for like little soft, mustardy poop to be able to make it through there
Ep 3 · 4:17
if you're gonna just try to keep it open, you just have to keep it open enough for like little soft, mustardy poop to be able to make it through there

Nothing matches these filters — clear the search or widen the filters.

2025 Pediatric Surgery Update Course - Updates in Colorectal: Debunking Dogma

Ep 60 · 0:57
quote there isn't a ton of earth shattering stuff that's occurred in the literature in the past couple of years that is really game changing
Ep 60 · 4:17
clinical Goal of fistula dilation is to maintain patency just large enough for soft, mustardy stool to pass through
Ep 60 · 4:17
quote if you're gonna just try to keep it open, you just have to keep it open enough for like little soft, mustardy poop to be able to make it through there
Ep 60 · 8:41
clinical Fistula dilations represent controlled tears when starting from pinhole size, not true stretching
Ep 60 · 11:04
quote this is basically like the same thing one would do in a bulbbar fistula but applied to a vestibular fistula
Ep 60 · 11:04
clinical Perineal body-preserving PSARP is essentially the same technique used for bulbar fistula applied to vestibular fistula
Ep 60 · 11:32
clinical Key technical principle for perineal body-preserving PSARP is to mobilize lateral planes and back wall thoroughly before coming around the anterior common plane
Ep 60 · 14:29
quote It's like become one of my favorite operations to do
Ep 60 · 20:25
clinical PCPLC retrospective study of Hirschsprung disease found no difference in preoperative enterocolitis, postoperative enterocolitis, or fecal incontinence between neonatal pull-through (median 11 days) and delayed primary pull-through (median 98 days)
Ep 60 · 23:40
epidemiological Multi-center retrospective study found 24% of Hirschsprung patients received at least one Botox injection
Ep 60 · 23:58
clinical Cincinnati Children's prospective study (2020-2024, unpublished) found decreased risk of enterocolitis within 31 days after pull-through in patients receiving Botox (30% vs 50%)
Ep 60 · 24:23
clinical Patients receiving Botox at time of pull-through had higher risk of diaper rash (60%)
Ep 60 · 24:58
clinical Early work from Boston used per-kilogram Botox dosing up to maximum of 100 units
Ep 60 · 29:29
quote every little flick of the bovie, like that's a blood vessel, that's a nerve, and that's another week in the bowel management clinic

Hirschsprung Disease Workup

Ep 106 · 1:05
clinical Hirschsprung disease is a congenital condition affecting the lower most aspect of the intestine (rectum or sigmoid), characterized by missing ganglion cells in the submucosal and myenteric plexus that allow the intestine to relax.
Ep 106 · 1:05
quote Hirschsprung's disease is a congenital issue. It is a condition that children are born with. It usually affects the lower most aspect of the intestine. A.K.A. the rectum or the sigmoid.
Ep 106 · 1:05
clinical Hirschsprung disease is a congenital condition affecting the lower most aspect of the intestine (rectum or sigmoid), characterized by missing ganglion cells in the submucosal and myenteric plexus that allow the intestine to relax.
Ep 106 · 1:05
quote Hirschsprung's disease is a congenital issue. It is a condition that children are born with. It usually affects the lower most aspect of the intestine. A.K.A. the rectum or the sigmoid.
Ep 106 · 1:25
quote the GI system is like a big tube, right? It's like a big tube that goes from your mouth to your anus. But it's not just a pipe. It's also a pump.
Ep 106 · 1:25
quote the GI system is like a big tube, right? It's like a big tube that goes from your mouth to your anus. But it's not just a pipe. It's also a pump.
Ep 106 · 1:50
quote in Hirschsprung's disease, we are missing the system of nerves that allows that to relax.
Ep 106 · 1:50
quote in Hirschsprung's disease, we are missing the system of nerves that allows that to relax.
Ep 106 · 2:00
clinical In Hirschsprung disease, the rectum and lowest part of the colon are always affected, with the aganglionosis always ending right above the anus.
Ep 106 · 2:00
clinical In Hirschsprung disease, the rectum and lowest part of the colon are always affected, with the aganglionosis always ending right above the anus.
Ep 106 · 2:15
quote with Hirschsprung's, we know that it always ends right above the anus. But where does it begin? That's where the variability is.
Ep 106 · 2:15
quote with Hirschsprung's, we know that it always ends right above the anus. But where does it begin? That's where the variability is.
Ep 106 · 2:25
epidemiological About 85% of Hirschsprung cases begin in the very end part of the sigmoid colon or the beginning of the rectum.
Ep 106 · 2:25
epidemiological About 85% of Hirschsprung cases begin in the very end part of the sigmoid colon or the beginning of the rectum.
Ep 106 · 2:35
epidemiological In about 10% of Hirschsprung cases, the entire colon is affected.
Ep 106 · 2:35
epidemiological In about 10% of Hirschsprung cases, the entire colon is affected.
Ep 106 · 3:30
clinical In newborns with suspected Hirschsprung disease, the initial workup includes a water-soluble contrast enema looking for a narrower distal segment (rectum) with dilation above.
Ep 106 · 3:30
clinical In newborns with suspected Hirschsprung disease, the initial workup includes a water-soluble contrast enema looking for a narrower distal segment (rectum) with dilation above.
Ep 106 · 3:40
quote we're going to start off with a water-soluble contrast enema. What is the radiologist looking for? Is the lowest segment of the intestine, the rectum, is that narrower? And then it dilates up above that. That's a sign that we have concern for Hirschsprung's disease.
Ep 106 · 3:40
quote we're going to start off with a water-soluble contrast enema. What is the radiologist looking for? Is the lowest segment of the intestine, the rectum, is that narrower? And then it dilates up above that. That's a sign that we have concern for Hirschsprung's disease.
Ep 106 · 4:05
clinical If contrast enema raises concern for Hirschsprung disease, a suction rectal biopsy is performed to examine tissue for the presence of ganglion cells.
Ep 106 · 4:05
clinical If contrast enema raises concern for Hirschsprung disease, a suction rectal biopsy is performed to examine tissue for the presence of ganglion cells.
Ep 106 · 4:46
quote In older children, Hirschsprungs can be missed. Those situations usually establish themselves. Children with Hirschsprungs very rarely thrive and develop normally. Because they're often small for their age group.
Ep 106 · 4:46
clinical In older children, Hirschsprung disease can be missed and typically presents with failure to thrive (small for age) and significant constipation.
Ep 106 · 4:46
clinical In older children, Hirschsprung disease can be missed and typically presents with failure to thrive (small for age) and significant constipation.
Ep 106 · 4:46
quote In older children, Hirschsprungs can be missed. Those situations usually establish themselves. Children with Hirschsprungs very rarely thrive and develop normally. Because they're often small for their age group.
Ep 106 · 5:00
clinical Children with Hirschsprung disease very rarely thrive and develop normally.
Ep 106 · 5:00
clinical Children with Hirschsprung disease very rarely thrive and develop normally.
Ep 106 · 5:20
clinical In older children with suspected Hirschsprung disease, the diagnostic pathway includes plain films to assess degree of constipation, followed by contrast rectal enema, and then biopsy depending on findings.
Ep 106 · 5:20
clinical In older children with suspected Hirschsprung disease, the diagnostic pathway includes plain films to assess degree of constipation, followed by contrast rectal enema, and then biopsy depending on findings.
Ep 106 · 5:45
clinical In older children with low-risk presentations (normal early years, then worsening constipation), biopsy should usually be done only after routine constipation management measures are tried and fail.
Ep 106 · 5:45
clinical In older children with low-risk presentations (normal early years, then worsening constipation), biopsy should usually be done only after routine constipation management measures are tried and fail.
Ep 106 · 6:25
clinical Anorectal manometry uses a balloon catheter to measure pressures in the anus and rectum, specifically looking for the rectoanal inhibitory reflex.
Ep 106 · 6:25
clinical Anorectal manometry uses a balloon catheter to measure pressures in the anus and rectum, specifically looking for the rectoanal inhibitory reflex.
Ep 106 · 7:05
clinical The normal rectoanal inhibitory reflex causes the anal sphincter to relax when a balloon is inflated in the rectum, but this reflex is absent in Hirschsprung disease.
Ep 106 · 7:05
quote There is a reflux called the recto anal inhibitory reflex. That when you blow a balloon up in the rectum and stretch the rectum, the sphincter should relax. That is a normal recto anal inhibitory reflex. But if the patient has Hirschsprung disease, that reflex, it's gone.
Ep 106 · 7:05
quote There is a reflux called the recto anal inhibitory reflex. That when you blow a balloon up in the rectum and stretch the rectum, the sphincter should relax. That is a normal recto anal inhibitory reflex. But if the patient has Hirschsprung disease, that reflex, it's gone.
Ep 106 · 7:05
clinical The normal rectoanal inhibitory reflex causes the anal sphincter to relax when a balloon is inflated in the rectum, but this reflex is absent in Hirschsprung disease.
Ep 106 · 7:33
quote It's not very sensitive. In other words, if you have a normal manometry, it doesn't completely rule out Hirschsprungs disease.
Ep 106 · 7:33
clinical Anorectal manometry is not sufficiently sensitive to rule out Hirschsprung disease; a normal manometry does not completely exclude the diagnosis.
Ep 106 · 7:33
quote It's not very sensitive. In other words, if you have a normal manometry, it doesn't completely rule out Hirschsprungs disease.
Ep 106 · 7:33
clinical Anorectal manometry is not sufficiently sensitive to rule out Hirschsprung disease; a normal manometry does not completely exclude the diagnosis.

2025 Pediatric Surgery Update Course - Updates in Colorectal: Debunking Dogma

Ep 180 · 0:57
quote there isn't a ton of earth shattering stuff that's occurred in the literature in the past couple of years that is really game changing
Ep 180 · 4:17
clinical Goal of fistula dilation is to maintain patency just large enough for soft, mustardy stool to pass through
Ep 180 · 4:17
quote if you're gonna just try to keep it open, you just have to keep it open enough for like little soft, mustardy poop to be able to make it through there
Ep 180 · 8:41
clinical Fistula dilations represent controlled tears when starting from pinhole size, not true stretching
Ep 180 · 11:04
clinical Perineal body-preserving PSARP is essentially the same technique used for bulbar fistula applied to vestibular fistula
Ep 180 · 11:04
quote this is basically like the same thing one would do in a bulbbar fistula but applied to a vestibular fistula
Ep 180 · 11:32
clinical Key technical principle for perineal body-preserving PSARP is to mobilize lateral planes and back wall thoroughly before coming around the anterior common plane
Ep 180 · 14:29
quote It's like become one of my favorite operations to do
Ep 180 · 20:25
clinical PCPLC retrospective study of Hirschsprung disease found no difference in preoperative enterocolitis, postoperative enterocolitis, or fecal incontinence between neonatal pull-through (median 11 days) and delayed primary pull-through (median 98 days)
Ep 180 · 23:40
epidemiological Multi-center retrospective study found 24% of Hirschsprung patients received at least one Botox injection
Ep 180 · 23:58
clinical Cincinnati Children's prospective study (2020-2024, unpublished) found decreased risk of enterocolitis within 31 days after pull-through in patients receiving Botox (30% vs 50%)
Ep 180 · 24:23
clinical Patients receiving Botox at time of pull-through had higher risk of diaper rash (60%)
Ep 180 · 24:58
clinical Early work from Boston used per-kilogram Botox dosing up to maximum of 100 units
Ep 180 · 29:29
quote every little flick of the bovie, like that's a blood vessel, that's a nerve, and that's another week in the bowel management clinic

Hirschsprung Disease Workup

Ep 43 · 1:05
quote Hirschsprung's disease is a congenital issue. It is a condition that children are born with. It usually affects the lower most aspect of the intestine. A.K.A. the rectum or the sigmoid.
Ep 43 · 1:05
clinical Hirschsprung disease is a congenital condition affecting the lower most aspect of the intestine (rectum or sigmoid), characterized by missing ganglion cells in the submucosal and myenteric plexus that allow the intestine to relax.
Ep 43 · 1:05
quote Hirschsprung's disease is a congenital issue. It is a condition that children are born with. It usually affects the lower most aspect of the intestine. A.K.A. the rectum or the sigmoid.
Ep 43 · 1:05
clinical Hirschsprung disease is a congenital condition affecting the lower most aspect of the intestine (rectum or sigmoid), characterized by missing ganglion cells in the submucosal and myenteric plexus that allow the intestine to relax.
Ep 43 · 1:25
quote the GI system is like a big tube, right? It's like a big tube that goes from your mouth to your anus. But it's not just a pipe. It's also a pump.
Ep 43 · 1:25
quote the GI system is like a big tube, right? It's like a big tube that goes from your mouth to your anus. But it's not just a pipe. It's also a pump.
Ep 43 · 1:50
quote in Hirschsprung's disease, we are missing the system of nerves that allows that to relax.
Ep 43 · 1:50
quote in Hirschsprung's disease, we are missing the system of nerves that allows that to relax.
Ep 43 · 2:00
clinical In Hirschsprung disease, the rectum and lowest part of the colon are always affected, with the aganglionosis always ending right above the anus.
Ep 43 · 2:00
clinical In Hirschsprung disease, the rectum and lowest part of the colon are always affected, with the aganglionosis always ending right above the anus.
Ep 43 · 2:15
quote with Hirschsprung's, we know that it always ends right above the anus. But where does it begin? That's where the variability is.
Ep 43 · 2:15
quote with Hirschsprung's, we know that it always ends right above the anus. But where does it begin? That's where the variability is.
Ep 43 · 2:25
epidemiological About 85% of Hirschsprung cases begin in the very end part of the sigmoid colon or the beginning of the rectum.
Ep 43 · 2:25
epidemiological About 85% of Hirschsprung cases begin in the very end part of the sigmoid colon or the beginning of the rectum.
Ep 43 · 2:35
epidemiological In about 10% of Hirschsprung cases, the entire colon is affected.
Ep 43 · 2:35
epidemiological In about 10% of Hirschsprung cases, the entire colon is affected.
Ep 43 · 3:30
clinical In newborns with suspected Hirschsprung disease, the initial workup includes a water-soluble contrast enema looking for a narrower distal segment (rectum) with dilation above.
Ep 43 · 3:30
clinical In newborns with suspected Hirschsprung disease, the initial workup includes a water-soluble contrast enema looking for a narrower distal segment (rectum) with dilation above.
Ep 43 · 3:40
quote we're going to start off with a water-soluble contrast enema. What is the radiologist looking for? Is the lowest segment of the intestine, the rectum, is that narrower? And then it dilates up above that. That's a sign that we have concern for Hirschsprung's disease.
Ep 43 · 3:40
quote we're going to start off with a water-soluble contrast enema. What is the radiologist looking for? Is the lowest segment of the intestine, the rectum, is that narrower? And then it dilates up above that. That's a sign that we have concern for Hirschsprung's disease.
Ep 43 · 4:05
clinical If contrast enema raises concern for Hirschsprung disease, a suction rectal biopsy is performed to examine tissue for the presence of ganglion cells.
Ep 43 · 4:05
clinical If contrast enema raises concern for Hirschsprung disease, a suction rectal biopsy is performed to examine tissue for the presence of ganglion cells.
Ep 43 · 4:46
quote In older children, Hirschsprungs can be missed. Those situations usually establish themselves. Children with Hirschsprungs very rarely thrive and develop normally. Because they're often small for their age group.
Ep 43 · 4:46
quote In older children, Hirschsprungs can be missed. Those situations usually establish themselves. Children with Hirschsprungs very rarely thrive and develop normally. Because they're often small for their age group.
Ep 43 · 4:46
clinical In older children, Hirschsprung disease can be missed and typically presents with failure to thrive (small for age) and significant constipation.
Ep 43 · 4:46
clinical In older children, Hirschsprung disease can be missed and typically presents with failure to thrive (small for age) and significant constipation.
Ep 43 · 5:00
clinical Children with Hirschsprung disease very rarely thrive and develop normally.
Ep 43 · 5:00
clinical Children with Hirschsprung disease very rarely thrive and develop normally.
Ep 43 · 5:20
clinical In older children with suspected Hirschsprung disease, the diagnostic pathway includes plain films to assess degree of constipation, followed by contrast rectal enema, and then biopsy depending on findings.
Ep 43 · 5:20
clinical In older children with suspected Hirschsprung disease, the diagnostic pathway includes plain films to assess degree of constipation, followed by contrast rectal enema, and then biopsy depending on findings.
Ep 43 · 5:45
clinical In older children with low-risk presentations (normal early years, then worsening constipation), biopsy should usually be done only after routine constipation management measures are tried and fail.
Ep 43 · 5:45
clinical In older children with low-risk presentations (normal early years, then worsening constipation), biopsy should usually be done only after routine constipation management measures are tried and fail.
Ep 43 · 6:25
clinical Anorectal manometry uses a balloon catheter to measure pressures in the anus and rectum, specifically looking for the rectoanal inhibitory reflex.
Ep 43 · 6:25
clinical Anorectal manometry uses a balloon catheter to measure pressures in the anus and rectum, specifically looking for the rectoanal inhibitory reflex.
Ep 43 · 7:05
clinical The normal rectoanal inhibitory reflex causes the anal sphincter to relax when a balloon is inflated in the rectum, but this reflex is absent in Hirschsprung disease.
Ep 43 · 7:05
quote There is a reflux called the recto anal inhibitory reflex. That when you blow a balloon up in the rectum and stretch the rectum, the sphincter should relax. That is a normal recto anal inhibitory reflex. But if the patient has Hirschsprung disease, that reflex, it's gone.
Ep 43 · 7:05
clinical The normal rectoanal inhibitory reflex causes the anal sphincter to relax when a balloon is inflated in the rectum, but this reflex is absent in Hirschsprung disease.
Ep 43 · 7:05
quote There is a reflux called the recto anal inhibitory reflex. That when you blow a balloon up in the rectum and stretch the rectum, the sphincter should relax. That is a normal recto anal inhibitory reflex. But if the patient has Hirschsprung disease, that reflex, it's gone.
Ep 43 · 7:33
clinical Anorectal manometry is not sufficiently sensitive to rule out Hirschsprung disease; a normal manometry does not completely exclude the diagnosis.
Ep 43 · 7:33
quote It's not very sensitive. In other words, if you have a normal manometry, it doesn't completely rule out Hirschsprungs disease.
Ep 43 · 7:33
clinical Anorectal manometry is not sufficiently sensitive to rule out Hirschsprung disease; a normal manometry does not completely exclude the diagnosis.
Ep 43 · 7:33
quote It's not very sensitive. In other words, if you have a normal manometry, it doesn't completely rule out Hirschsprungs disease.

2025 Pediatric Surgery Update Course - Updates in Colorectal: Debunking Dogma

Ep 78 · 0:57
quote there isn't a ton of earth shattering stuff that's occurred in the literature in the past couple of years that is really game changing
Ep 78 · 4:17
clinical Goal of fistula dilation is to maintain patency just large enough for soft, mustardy stool to pass through
Ep 78 · 4:17
quote if you're gonna just try to keep it open, you just have to keep it open enough for like little soft, mustardy poop to be able to make it through there
Ep 78 · 8:41
clinical Fistula dilations represent controlled tears when starting from pinhole size, not true stretching
Ep 78 · 11:04
quote this is basically like the same thing one would do in a bulbbar fistula but applied to a vestibular fistula
Ep 78 · 11:04
clinical Perineal body-preserving PSARP is essentially the same technique used for bulbar fistula applied to vestibular fistula
Ep 78 · 11:32
clinical Key technical principle for perineal body-preserving PSARP is to mobilize lateral planes and back wall thoroughly before coming around the anterior common plane
Ep 78 · 14:29
quote It's like become one of my favorite operations to do
Ep 78 · 20:25
clinical PCPLC retrospective study of Hirschsprung disease found no difference in preoperative enterocolitis, postoperative enterocolitis, or fecal incontinence between neonatal pull-through (median 11 days) and delayed primary pull-through (median 98 days)
Ep 78 · 23:40
epidemiological Multi-center retrospective study found 24% of Hirschsprung patients received at least one Botox injection
Ep 78 · 23:58
clinical Cincinnati Children's prospective study (2020-2024, unpublished) found decreased risk of enterocolitis within 31 days after pull-through in patients receiving Botox (30% vs 50%)
Ep 78 · 24:23
clinical Patients receiving Botox at time of pull-through had higher risk of diaper rash (60%)
Ep 78 · 24:58
clinical Early work from Boston used per-kilogram Botox dosing up to maximum of 100 units
Ep 78 · 29:29
quote every little flick of the bovie, like that's a blood vessel, that's a nerve, and that's another week in the bowel management clinic

2025 Pediatric Surgery Update Course - Updates in Colorectal: Debunking Dogma

Ep 3 · 0:57
quote there isn't a ton of earth shattering stuff that's occurred in the literature in the past couple of years that is really game changing
Ep 3 · 4:17
clinical Goal of fistula dilation is to maintain patency just large enough for soft, mustardy stool to pass through
Ep 3 · 4:17
quote if you're gonna just try to keep it open, you just have to keep it open enough for like little soft, mustardy poop to be able to make it through there
Ep 3 · 8:41
clinical Fistula dilations represent controlled tears when starting from pinhole size, not true stretching
Ep 3 · 11:04
clinical Perineal body-preserving PSARP is essentially the same technique used for bulbar fistula applied to vestibular fistula
Ep 3 · 11:04
quote this is basically like the same thing one would do in a bulbbar fistula but applied to a vestibular fistula
Ep 3 · 11:32
clinical Key technical principle for perineal body-preserving PSARP is to mobilize lateral planes and back wall thoroughly before coming around the anterior common plane
Ep 3 · 14:29
quote It's like become one of my favorite operations to do
Ep 3 · 20:25
clinical PCPLC retrospective study of Hirschsprung disease found no difference in preoperative enterocolitis, postoperative enterocolitis, or fecal incontinence between neonatal pull-through (median 11 days) and delayed primary pull-through (median 98 days)
Ep 3 · 23:40
epidemiological Multi-center retrospective study found 24% of Hirschsprung patients received at least one Botox injection
Ep 3 · 23:58
clinical Cincinnati Children's prospective study (2020-2024, unpublished) found decreased risk of enterocolitis within 31 days after pull-through in patients receiving Botox (30% vs 50%)
Ep 3 · 24:23
clinical Patients receiving Botox at time of pull-through had higher risk of diaper rash (60%)
Ep 3 · 24:58
clinical Early work from Boston used per-kilogram Botox dosing up to maximum of 100 units
Ep 3 · 29:29
quote every little flick of the bovie, like that's a blood vessel, that's a nerve, and that's another week in the bowel management clinic