DR. ROMAN NOWYGROD, M.D.

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This study looked at a group of 25 patients with chronic leg artery disease undergoing a type of surgery to improve blood flow. Researchers found that patients with smaller forms of a specific protein (apolipoprotein(a) or apo(a)) were nearly twice as likely to have their treated artery get blocked again shortly after surgery, which is important for ensuring the success of these procedures. Specifically, those with smaller apo(a) had a 97% higher risk of artery blockage within 2-4 weeks post-surgery. Who this helps: This information helps doctors better understand which patients may need closer monitoring after leg artery surgery.

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This study looked at how certain proteins in the blood called apolipoprotein(a) isoforms might predict how well patients do after surgery to improve blood flow in their legs. Researchers found that when people had smaller isoforms of this protein, they were nearly twice as likely (odds ratio of 1.97) to experience a blockage in their arteries after surgery compared to those with larger isoforms. This is important because identifying these risks could help doctors better manage care for patients undergoing this type of surgery. Who this helps: Patients with peripheral arterial disease (PAD) undergoing revascularization procedures.

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This study looked at how medical students' assessments changed during the COVID-19 pandemic, particularly focusing on a clinical skills exam taken online as an open-book test. The students who took this exam during the pandemic scored better on average compared to students from previous years, with scores of 75.2 on the clinical skills exam and 68.0 on the knowledge test, versus historical scores of 68.7 and 64.0, respectively. These improvements suggest that the new testing format may have been effective, but students expressed a preference for traditional closed-book exams due to concerns about their study habits and test-taking experience. Who this helps: This helps medical students and educators in adapting teaching methods during challenging times.

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This study looked at how teaching surgery to medical students in a continuous format, instead of a traditional short-term setup, affects their performance and experience. Students in the continuous program scored higher on a national exam (77 compared to 71) and showed more interest in pursuing surgery as a career. These findings indicate that a longer, more integrated surgical training approach can enhance both knowledge and enthusiasm for this specialty. Who this helps: This benefits medical students and future surgeons.

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Medical students who assisted with organ procurements reported the experience was meaningful but lacked any formal educational structure. A survey of students who participated over several years found strong interest in surgery and donation but gaps in knowledge and guidance. The authors call for a standardized curriculum to make procurement education consistent and impactful.

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This research looked at the long-term death rates of patients who underwent lower limb amputations, especially those with diabetes or poor blood circulation. The study found that nearly half (47.9%) of patients died within a year, with rates increasing to over 70% by the third year. Understanding these high mortality rates and the associated risk factors, like heart disease and kidney problems, is crucial for doctors when considering amputation versus other treatments. Who this helps: This helps patients who may need limb amputation and their doctors in making informed treatment decisions.

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This study focused on patients with complex medical conditions who need surgery for abdominal aortic aneurysms (AAAs). Researchers analyzed data from nearly 492,000 patients and found that transferring patients to hospitals that perform more surgeries significantly reduces complications after surgery and improves survival rates. Specifically, patients who were transferred to high-volume hospitals experienced fewer complications (40.4% vs. 47.8%) and had better survival outcomes after surgery than those who stayed at lower-volume hospitals. Who this helps: This benefits patients with abdominal aortic aneurysms, especially those with complicated health issues.

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This study looked at how using an online video platform to view surgical procedures affects medical students' performance during their surgery training. Researchers found that students who used the videos more often scored significantly better on exams and received better evaluations. Specifically, students’ exam scores were closely linked to their video platform usage (with a statistical significance of less than 0.001), while simply observing surgeries did not have the same effect. Who this helps: This benefits medical students by improving their training and evaluation during surgical clerkships.

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This study looked at the rates and costs of Clostridium difficile infections (CDI) in patients undergoing vascular surgeries from 2000 to 2011. Researchers found that CDI rates rose significantly by 74%, from 0.6% in 2000 to 1.05% in 2011, with the highest rates occurring after surgeries for ruptured abdominal aneurysms (3.3%) and lower extremity amputations (2.3%). CDI led to longer hospital stays—15 days on average compared to 8.3 days for those without the infection—and resulted in $13,471 more in hospital costs, totaling nearly $98 million nationwide in 2011. Who this helps: This information benefits patients undergoing vascular surgeries and the healthcare providers treating them.

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This study looked at a new written exam designed to evaluate medical students' knowledge and decision-making skills during their surgery training. Researchers found that 262 students who took this exam performed in a normal range, and their scores were strongly linked to other standardized medical exams. The exam was shown to be a reliable tool for assessing students, regardless of the order in which they completed their clerkships. Who this helps: This benefits medical students and educators in surgical training programs.

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This study looked at the outcomes of patients undergoing elective surgery for abdominal aortic aneurysms (AAAs) from 1995 to 2011, focusing on how often patients died after experiencing complications within 30 days of surgery. The research found that while more patients had additional health issues, the rate of deaths from such complications decreased significantly from 2.68% in 2000 to 1.58% in 2011, especially for those undergoing less invasive endovascular repair (FTR decreased from 1.70% to 0.58%). This matters because it shows that higher hospital volumes and newer surgical techniques are improving patient survival after surgery. Who this helps: This benefits patients undergoing AAA surgery and their doctors.

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This study examined whether taking statins before surgery for asymptomatic carotid artery narrowing helps protect patients from neurological injuries like strokes and cognitive issues. Among 328 patients, those on statins had no strokes compared to 3.1% of those not on them, and cognitive problems occurred in 11% of statin users compared to 20.2% of non-users. This matters because it shows that statins can significantly lower the risk of these complications during and after surgery. Who this helps: This helps patients undergoing carotid endarterectomy and their doctors in managing their care.

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This study looked at a new method for treating a complex celiac artery aneurysm in a 42-year-old man. The treatment involved two stages: first, a surgical bypass to restore blood flow to the liver, followed by a second procedure to block off the aneurysm. After 12 months, the patient was free of symptoms, and the aneurysm was successfully treated. Who this helps: This helps patients with complex celiac artery aneurysms.

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This study looked at whether certain bacteria are present in tissue from people with artery blockages, such as those affected by atherosclerosis. Researchers found a type of bacteria called Enterobacter hormaechei in plaque samples, which was resistant to multiple antibiotics. High levels of this bacteria were found in some diseased tissues, pointing to the possibility that chronic bacterial infections could play a role in the development of atherosclerosis. Who this helps: This helps patients with atherosclerosis and healthcare providers looking to better understand and treat vascular conditions.

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This study examined whether certain immune cells, called monocytic cells, could help recover previously uncultivated bacteria from clogged arteries in seven patients undergoing surgery. The researchers found that by adding these monocytic cells to the samples, they were able to isolate 124 bacteria per sample on average, compared to just 22 without the added cells. This is significant because it shows that there are viable bacteria in atherosclerotic tissues that may play a role in the inflammation associated with heart disease, which could lead to new ways to diagnose and treat cardiovascular issues. Who this helps: Patients with cardiovascular disease.

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This research looked at how the treatment of leg problems caused by poor blood flow has changed over the past decade. It found that major amputations decreased by 38%, while less invasive procedures, like endovascular techniques, have doubled in use. As a result, hospital stays have become shorter, and complications have reduced, showing that these newer treatments are safer and more effective. Who this helps: This benefits patients with peripheral vascular disease, as they face lower risks and better treatment options.

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This case report describes successful rescue of a kidney transplant threatened by acute arterial thrombosis in the hours after surgery, using operative clot removal followed by direct infusion of a clot-dissolving drug into the renal artery. Despite being a rare and typically graft-losing complication, prompt recognition and aggressive intervention saved the kidney. The case illustrates the importance of early diagnosis and the viability of thrombolytic therapy as part of the rescue strategy.

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This study looked at the effectiveness of a surgical procedure called carotid endarterectomy (CEA) for treating pulsatile tinnitus, a rare condition often linked to carotid artery disease. The researchers found that 92% of patients experienced a cure from the tinnitus after the surgery, and 89% reported immediate relief. Overall, 68% of patients treated for this condition found improvement. Who this helps: This benefits patients suffering from pulsatile tinnitus caused by carotid artery disease.

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This study examined the role of a protein called RAGE in the growth of abdominal aortic aneurysms (AAA), which can be life-threatening if they rupture. Researchers found that RAGE levels were three times higher in aneurysm samples than in healthy aorta tissue. In mice lacking the RAGE gene, the occurrence of AAAs dropped from 75% to 25%, and they had smaller aortic sizes, suggesting that targeting RAGE could help prevent these dangerous aneurysms from forming. Who this helps: This research could benefit patients at risk for abdominal aortic aneurysms.

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This study looked at how having insurance affects the severity of vascular diseases and the outcomes of treatments. It found that patients without insurance or on Medicaid often had more serious conditions, like ruptured abdominal aneurysms and serious leg problems, compared to those with private insurance. However, after treatment, the chances of dying from surgery were similar across different insurance groups, except for lower extremity procedures, where uninsured patients faced higher amputation rates. Who this helps: This research benefits patients without insurance or on Medicaid, highlighting their need for better access to preventative care.

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This study examined the results of 1,000 minimally invasive procedures to improve blood flow in the legs for patients with vascular problems between 2001 and 2006. It found that 30 days after the procedures, only 0.5% of patients died, and two years later, nearly 80% of patients with leg pain (claudication) maintained good blood flow, while about 80% of patients facing severe risks to their limbs were able to save their limbs. This is important because it shows that these less invasive procedures are safe and effective options for treating serious circulatory issues in the legs. Who this helps: This benefits patients with leg vascular disease, especially those facing the risk of amputation.

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This study looked at the trends and risks related to surgeries for peripheral vascular disease using data from various national sources between 1998 and 2003. Researchers found that the rate of amputations dropped by 13.2% overall, with a more significant decrease of 21.2% for major amputations. Mortality rates for most procedures remained stable; however, endovascular repairs showed a notable improvement, with mortality dropping from 2.6% in 2000 to less than 1.5% in 2003. This information is important because it highlights improvements in surgical techniques that can lead to better patient outcomes. Who this helps: This benefits patients needing peripheral vascular surgeries by providing insight into safer treatment options.

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This study looked at how well endovascular treatment works for patients with ruptured abdominal aortic aneurysms (RAAAs) compared to traditional surgery. It found that the use of endovascular techniques increased from 0% to 6.2% between 2000 and 2003 and had a lower death rate of 39.3%, compared to 47.7% for open surgery. This matters because it shows that endovascular repair can be a safer option for these high-risk patients, particularly in hospitals with more experience in this type of surgery. Who this helps: This helps patients experiencing ruptured aneurysms and their doctors by providing safer treatment options.

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This study looked at how effective tibial angioplasty is for patients with serious leg circulation problems who couldn’t have other types of surgery. Out of 19 patients, 22 out of 23 treated blood vessels successfully opened up, and many showed significant improvement, with the average blood flow measurement (ABI) going from 0.53 before the procedure to 0.85 afterward. This matters because it offers an alternative treatment option that could prevent amputations in patients with very limited options. Who this helps: Patients with limb-threatening ischemia who are unable to undergo bypass surgery.

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This study looked at two ways to repair abdominal aortic aneurysms (AAAs) in New York State: endovascular repair (a less invasive method) and open surgery (more traditional and invasive). It found that from 2000 to 2002, the number of endovascular repairs jumped significantly, with more procedures being performed (871 for endovascular vs. 783 for open repairs by 2002). Importantly, patients who had endovascular repairs had a much shorter hospital stay (about 3.6 days compared to 10.3 days for open repairs) and lower in-hospital mortality rates, which dropped from 3.55% for open repairs in 2001 to just 1.14% for endovascular repairs. Who this helps: This benefits patients needing AAA repairs, particularly older adults who are more likely to receive the safer, less invasive endovascular method.

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This study looked at how many vascular surgeries were performed in the U.S. from 1980 to 2000, revealing a significant increase from 412,557 to 801,537 procedures, which is over a 50% rise. Most of the patients were elderly, with a 67% increase in procedures for those over 75 years old, while long hospital stays dropped by 41%. This matters because it shows a trend towards less invasive treatments and suggests that vascular surgeons should focus on catheter-based methods to effectively treat vascular diseases. Who this helps: This helps patients, especially the elderly, by offering less invasive treatment options.

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This study looked at a new carotid stenting program led by vascular surgeons to treat patients with narrowing of the carotid arteries. Out of 57 patients, who averaged 75 years old and were at high risk for surgery, the procedure worked well with no severe complications and a short average hospital stay of just over a day. The results indicate that this treatment approach is safe and effective, potentially setting a new standard for how carotid artery disease is managed. Who this helps: Patients with carotid artery disease who are at high risk for traditional surgery.

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This study looked at a 72-year-old woman who had heart rhythm issues and blood clots after surgery. She experienced problems due to a condition called heparin-induced thrombocytopenia with thrombosis, which made using standard blood thinners like heparin unsafe for her. The doctors performed a special surgery to remove the blood clots without using heparin, and afterward, her blood counts returned to normal, meaning she didn’t have more clots and could leave the hospital safely on a different medication. Who this helps: This helps patients with blood clot problems who cannot use heparin.

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This study looked at whether patients who have a lot of antibodies against human cells also react to chimpanzee cells, which could help with kidney transplants. Researchers examined blood samples from six patients who are very difficult to match for transplants and found that three of them didn't have antibodies that reacted to chimpanzee cells. This is important because it suggests that some patients who are highly sensitized to human tissues might still have options for receiving transplants from chimpanzees, potentially increasing the number of available donor organs. Who this helps: This helps patients waiting for kidney transplants who have a high level of sensitization to human tissues.

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This study looks at a baby girl who developed serious health problems just days after being sent home from the hospital. She had high blood pressure and heart failure caused by a rare blood vessel issue called an abdominal aortic aneurysm, which led to her death at just 20 days old. The findings underline the importance of quick diagnosis and surgery for similar cases, as early intervention can be crucial for survival. Who this helps: This benefits doctors and healthcare providers who manage newborns with complex health issues.

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This study looked at whether using vascular closure staples instead of traditional sutures affects how well blood flows and how cells grow at the site of surgery in rabbit vein grafts. Researchers found that both techniques resulted in similar blood flow rates after three months (about 34.3 cm/s for staples and 39.23 cm/s for sutures), and that there were no significant differences in how the cells grew or how the inner lining of the vessels changed. This matters because it suggests that either method can be used safely without impacting the outcomes of vein graft surgeries. Who this helps: Patients undergoing vein graft surgeries benefit from this research.

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This study looked at how two forms of vitamin A, called all-trans retinoic acid and 13-cis retinoic acid, affect blood vessel thickening after an injury in rats. Researchers found that these retinoids significantly reduced the thickening of the vessel walls, with all-trans retinoic acid showing a strong effect (P = 0.001) and 13-cis retinoic acid also being effective (P = 0.004). This is important because it suggests that these vitamin A derivatives could help prevent complications in patients who undergo artery surgeries like angioplasty. Who this helps: Patients recovering from arterial surgeries.

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This study looked at how well photo-oxidized bovine artery grafts work compared to plastic grafts in dogs. The results showed that the bovine grafts were much more effective at staying open (patency) in the femoral vein, with 83% open after one week compared to just 17% for the plastic grafts. In the femoral artery, the bovine grafts had an 82% success rate at six weeks, similar to the plastic grafts at 63%. Who this helps: This helps patients needing vascular surgery by offering them better options for graft materials.

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This study examined whether a type of low-energy laser, specifically a helium-neon laser, could help wounds heal faster in rats. Researchers tested different doses of the laser on wounds but found no difference in healing speed or strength, with results showing that the laser treatment (at doses of 1, 2, or 4 J/cm2) was just as effective as not using the laser at all. This is important because it challenges previous ideas that low-energy lasers could improve wound healing, indicating that further research is needed to understand their effects better. Who this helps: This helps researchers and healthcare providers looking for effective wound healing treatments.

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This study looked at a new anticoagulant called IXai as an alternative to the commonly used heparin during vascular repair surgeries involving synthetic patches. The results showed that using IXai significantly reduced blood loss (about 6.97 grams for heparin compared to just 2.72 grams for IXai) and shortened the time it took to stop bleeding (2.94 minutes with heparin versus 2.0 minutes with IXai). This is important because it means faster and safer surgeries with less bleeding, improving outcomes for patients. Who this helps: This helps patients undergoing vascular repair surgeries.

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This study examined how inserting a special graft, called an endovascular graft, affects dogs with abdominal aortic aneurysms. The researchers found that after the graft was implanted, the pressure in the aneurysm sac dropped significantly to about 82.9 mmHg, compared to 113.4 mmHg in the healthy part of the aorta. Additionally, while the untreated aneurysms grew by over 25%, the treated ones shrank by about 22.5%. This matters because it shows that using this graft can effectively reduce pressure and limit the growth of aneurysms, which is crucial for improving patient outcomes. Who this helps: Patients with abdominal aortic aneurysms.

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This study looked at how a new substance called EMAP II can help make certain tumors more responsive to a treatment called tumor necrosis factor (TNF). Researchers found that when they treated resistant tumors (specifically a type of skin cancer and a human fibrosarcoma) with EMAP II, followed by TNF, the tumors either shrank or grew significantly slower. This is important because it shows a way to use lower doses of TNF, which can be safer for patients who might otherwise experience harmful side effects. Who this helps: This benefits cancer patients who have tumors resistant to standard treatments.

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This study compared two types of colon surgery—laparoscopic (minimally invasive) and open (traditional) surgery—using pigs. It found that while laparoscopic surgery took about twice as long to perform, the pigs recovered faster afterward, with fewer complications like internal scarring. Although one pig in the laparoscopic group died shortly after surgery, this did not significantly differ from the open surgery group, where all pigs survived. Who this helps: This research supports doctors in making better decisions about colon surgery options, potentially leading to improved recovery for patients.

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This study looked into whether high-pressure carbon dioxide environments could spray or aerosolize tumor cells during surgical procedures, potentially leading to the spread of cancer. The researchers found that in both lab tests and experiments on rats, tumor growth did not occur in the samples subjected to pressure, showing that aerosolized tumor cells are unlikely to form. Specifically, none of the 124 test samples in the lab grew tumors, and out of 18 tested in live rats, none showed growth either. Who this helps: This helps doctors and patients understand the risks related to tumor cell spread during surgeries.

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This study looked at how two different surgical methods—laparotomy (a larger incision) and laparoscopy with gas inflation—affect tumor growth in mice. The researchers found that, by 14 days, tumors developed in 70% of mice who had laparotomies, while no tumors formed in the laparoscopic group. By 30 days, 80% of laparotomy mice had tumors compared to just 10% in the insufflated group, and tumors from laparotomy were nearly three times larger in mass than those from the other method. This matters because it suggests that laparotomy may promote tumor growth more than laparoscopy, which could influence how surgeons approach cancer surgeries. Who this helps: This helps surgeons and oncologists make better decisions about surgical methods for cancer treatment.

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This study looked at how different types of surgical procedures—specifically laparotomy (a larger incision surgery) and laparoscopy (a minimally invasive surgery)—affect tumor growth in mice. The researchers found that tumors grew significantly larger and were more likely to establish after laparotomy compared to laparoscopy. For instance, tumors in the laparotomy group were about three times larger than those in the control group and almost twice as large as the tumors in the laparoscopy group. This matters because it suggests that laparoscopic surgery may be better for preventing tumor growth due to its potential to preserve immune function. Who this helps: Patients undergoing surgery for tumors.

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This study explored a new way to close incisions in the bile duct during surgery using a type of glue activated by a laser instead of traditional stitches. The researchers found that the laser-sealed closures had a much higher resistance to leaking than the stitched ones, with an immediate pressure of 264 mm Hg compared to just 83 mm Hg for stitches. By 7 days after the procedure, the sealed closures showed no signs of inflammation or other complications. Who this helps: This benefits patients undergoing laparoscopic bile duct surgeries.

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This study examined how low oxygen levels (hypoxia) affect the production of a protein called interleukin-8 (IL-8) in blood vessel cells. The researchers found that when these cells were exposed to hypoxia, they released more IL-8 over time, which attracted white blood cells (PMNs) that can cause tissue damage. Specifically, IL-8 levels increased significantly in hypoxic conditions, highlighting a mechanism that may contribute to inflammation and tissue damage during conditions like a heart attack or stroke. Who this helps: This information can benefit patients who suffer from conditions related to ischemia, as well as doctors treating these patients.

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This study looked at how two different types of colon surgery—laparoscopic and open—affect immune responses in pigs. The researchers found that pigs that had laparoscopic surgery showed a 20% stronger immune reaction compared to those that had open surgery, measuring 1.54 cm in skin response at 48 hours and 1.53 cm at 72 hours for the laparoscopic group, while the open surgery group measured 1.24 cm at 48 hours and 1.32 cm at 72 hours. This matters because better immune function after surgery can lead to quicker recovery and reduced infection rates. Who this helps: This helps patients undergoing colon surgery.

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Researchers studied a protein called EMAP II, produced by certain tumors, to understand its effects on the immune system and blood vessels. They found that this protein can activate immune cells and cause inflammation, resulting in changes like higher calcium levels in cells and increased production of various factors that help fight tumors. Notably, injecting EMAP II directly into tumors led to bleeding and reduced tumor size, which shows it could help make resistant tumors more vulnerable to other treatments. Who this helps: This helps patients with difficult-to-treat tumors and their doctors in developing better treatment options.

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In this study, researchers looked at the outcomes of a surgical procedure called total pelvic exenteration (TPE) used to treat advanced pelvic tumors while preserving the ability to control urinary and bowel functions. They reviewed the cases of 4 patients who underwent this surgery and found that none died as a result of the procedure, two needed additional surgeries, and three of the four patients were alive and free of cancer after about 25 months. This matters because it shows that TPE can effectively treat serious pelvic cancers while minimizing complications and maintaining quality of life for patients. Who this helps: This helps patients with locally advanced pelvic tumors and their doctors.

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This study looked at how different types of surgery—laparoscopic and open surgery—affect the immune response in rats. The researchers found that rats undergoing open surgery (laparotomy) had significantly weaker immune responses after surgery compared to those that had laparoscopic surgery or no surgery at all. Specifically, the open surgery group showed diminished immune reactions when tested after the procedure, indicating that laparoscopic techniques preserve better immune function. Who this helps: This helps patients undergoing surgery by highlighting the benefits of laparoscopic methods for maintaining immune health.