Showing 27 results for Navid
Navid Kalani, Masoud Ghanei, Hossein Hakimelahi,
Volume 82, Issue 10 (January 2025)
Abstract
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Background: Varicocele, defined as an abnormal enlargement and tortuosity of the veins in the pampiniform plexus, is the most common cause of correctable male infertility that might increase chance of fertility even in presence of further male factor infertility causes. While it is well known to be reason of fertility in male and is easy to treat, here we present a case with 20 years of infertility due to missed opportunity of varicocelectomy.
Case Presentation: A 39-year-old male patient with a family history of infertility for about 20 years was referred for azoospermia and stated that after two testicular biopsies and failure to obtain sperm in one of the equipped infertility treatment centers, he was recommended to receive a donated embryo, but he wanted to have his biological child genetically. In the history taken, he had a history of mild left varicocele and no other clinical problems, and mild bilateral varicocele was evident on examination. Karyotype and Y chromosome examination were normal, and hormonal tests and gonadotropin and testosterone levels were within normal limits. Semen volume was 1 ml in two tests one month apart, and semen was alkaline. The patient underwent microscopic bilateral varicocelectomy with an inguinal incision. The patient underwent fluoroscopy, vasography, which showed distal dilatation of both Vas deferens. Diluted methylene blue solution was also injected into the vas deferens and Folley was fixed. But the urine color did not turn blue, so the patient's position was changed to lithotomy and the patient underwent resection of the ejaculatory duct via the urethra, that is the Verumontanum was resected with a cautery-cutting cautery. Three months later, the patient presented with a completely normal semen analysis. The patient was advised to try to conceive at least four months after the operation. Two months later, pregnancy occurred again, and after 9 months, a healthy male fetus was born by cesarean section.
Conclusion: This study demonstrates that varicocele treatment can significantly improve fertility parameters and enhance the chances of successful conception in affected patients. The most important suggestion of this case report is to highlight the importance of timely diagnosis and treatment of varicocele as a correctable cause of male infertility. Unfortunately, our patient suffered from infertility for 20 years due to not undergoing varicocelectomy. Even obstruction treatment may not necessarily be needed in this case, as a sole varicocelectomy might make sperm extraction possible for further in vitro procedures.
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Mojtaba Ghaedi, Mojtaba Sohrabpour , Gholamreza Motazedian, Navid Kalani , Reza Sahraei , Mohammad Sadegh Sanie Jahromi,
Volume 82, Issue 11 (February 2025)
Abstract
Background: Hemodynamic instability is a significant perioperative complication that can threaten surgical outcome through various mechanisms: exacerbating intraoperative bleeding, compromising visibility of the surgical field, and elevating immediate and delayed postoperative complication risks. In septorhinoplasty, a procedure with challenging hemodynamic control due to the nasal anatomy's complexity of vessels, these effects are particularly relevant. This study examines the modulation of important hemodynamic parameters (SBP, DBP, MAP, HR, and SpO₂) by intravenous dexmedetomidine while ensuring cardiovascular stability and dose-dependent effects and optimal timing of administration at different phases of surgery. The findings aim to offer evidence-based recommendations for hemodynamic control in rhinoplasty surgery, which can reduce rates of complications and improve recovery profiles.
Methods: A randomized, double-blind clinical trial was conducted involving 50 eligible patients (aged 18-45 years) scheduled for septorhinoplasty at Ostad Motahari Hospital, Jahrom, during May-September 2023. Participants were randomly allocated to either a dexmedetomidine or control group. Collected data encompassed demographic characteristics (age, gender, BMI=Body mass index) and hemodynamic parameters (systolic/diastolic blood pressure, mean arterial pressure, heart rate, and oxygen saturation). The data were analyzed using SPSS software, version 21 (SPSS Inc., Chicago, IL, USA). Descriptive statistics (mean, standard deviation, percentage, count, and frequency) and inferential statistical tests (Mann-Whitney U test and independent t-test) were applied. A significance level of P < 0.05 was considered for all statistical analyses.
Results: The dexmedetomidine group demonstrated statistically significant variations in hemodynamic parameters (SBP, DBP, MAP, HR) from pre-induction through post-recovery phases (p<0.001). Significant between-group differences in blood pressure metrics were observed at all measured intervals following induction (1, 5, 15, 30, 60 minutes) and during recovery periods (p<0.05), with the dexmedetomidine group consistently showing lower values. Comparison between the intervention and control groups revealed no statistically significant differences in heart rate and oxygen saturation (O₂ sat) levels (except during recovery time).
Conclusion: The results of this study indicate that dexmedetomidine administration had a significant effect on reducing systolic blood pressure, diastolic blood pressure, and MAP compared to the control group, with this reduction being evident at all measured time points from post-induction to post-recovery. These findings suggest that dexmedetomidine can be effectively used as a blood pressure-lowering agent during surgery without significantly affecting heart rate or the patient's blood oxygen levels.
Mohammad Shojaie, Afshin Avazpour, Navid Kalani ,
Volume 82, Issue 12 (March 2025)
Abstract
Background: Coronary artery disease (CAD) is among the most common life-threatening cardiovascular diseases, in which blood supply to the heart muscles is reduced or completely blocked. Coronary artery disease has various treatment options, one of which is PCI (Percutaneous Coronary Intervention) or stent placement via angioplasty. Dabigatran etexilate is the only orally available direct thrombin inhibitor, which is actually a prodrug that is rapidly converted to its active form and absorbed through the gastrointestinal tract. The purpose of this study is to compare mortality in patients with Atrial Fibrillation (AF) with a history of Percutaneous coronary intervention (PCI) treated with a low dose (110 mg). In contrast, it was treated with a high dose (150 mg).
Methods: The present study was a systematic review and meta-analysis on 4 online databases PubMed, Scopus, Web of Science and EMBASE to find articles that the rate of long-term complications related to bleeding or Thrombotic events were performed in AF patients who underwent PCI and were treated with dabigatran. STATA software was used for data analysis.
Results: Nine RCTs or prospective studies with 5694 participants were included. The studies showed that when comparing dabigatran (110 and 150 mg) with warfarin (with/without dual antiplatelet), dabigatran 110 mg was associated with a significant reduction in major bleeding (OR=0.46, 95% CI: 0.24-0.86, P=0.01), while the 150 mg dose was not statistically different (OR=0.12, 95% CI: 0.01-1.32, P=0.08). Also, comparing dabigatran 150 with 110 mg showed a higher risk of bleeding at the higher dose (OR=0.77, 95% CI: 0.64-0.92, P<0.001). On the other hand, dabigatran 110 mg was associated with a significant increase in mortality (OR=1.33, P=0.01) and myocardial infarction (OR=1.61, P=0.01) compared with combination therapy of warfarin and antiplatelet, but the 150 mg dose did not show a statistical difference. Heterogeneity was high in some analyses (I2 up to 99.49%), but funnel plots and Egger's test rejected publication bias.
Conclusion: There seems to be strong evidence that bleeding complications in dabigatran are less than old antiplatelet and anticoagulation drugs, but in terms of efficacy in reducing mortality, although we did not obtain strong evidence for analysis, older drugs are more effective in preventing death from any cause.
Reza Sahraei, Anahita Haghjoo , Hasan Zabetian, Mansour Deylami, Rahil Haghjoo, Fatemeh Khadempir, Navid Kalani ,
Volume 83, Issue 1 (April 2025)
Abstract
Background: Spinal anesthesia is a common method for elective cesarean sections; however, complications such as shivering and nausea may affect postoperative recovery quality. Bupivacaine is a standard drug used in this procedure, but its combination with opioids like sufentanil may have beneficial effects in reducing these complications. This study aimed to compare the incidence of shivering and nausea in women undergoing elective cesarean section who received either bupivacaine alone or a bupivacaine-sufentanil combination.
Methods: The present study was a double-blind randomized clinical trial conducted over a 6-month period from April 2021 to October 2021 on 30 patients undergoing elective cesarean section with spinal anesthesia at Motahari Hospital in Jahrom city. Patients were randomly assigned using a random number table into two groups: bupivacaine alone and bupivacaine-sufentanil combination. The frequency of nausea, vomiting, and shivering was recorded at different time points: before spinal anesthesia, after spinal anesthesia, 3 minutes before delivery, immediately after delivery, at 15, 30, and 45 minutes, upon recovery room admission, and upon discharge from recovery. The data analysis was performed using descriptive statistics indicators (frequency, percentage, mean, and standard deviation) and inferential statistical tests (t-test, Mann-Whitney, chi-square and Friedman) using SPSS software version 21. A significance level of p < 0.05 was considered.
Results: In the bupivacaine-sufentanil group, the highest frequency of shivering occurred at 30 minutes post-spinal anesthesia (20%) and upon recovery room admission (26.7%). In the bupivacaine-alone group, the highest frequency was observed upon recovery room admission (33.3%) and at discharge from recovery (26.7%). The highest nausea frequency was 33.3% in the bupivacaine-sufentanil group and 40% in the bupivacaine group at 3 minutes before delivery. However, no statistically significant difference was found between the two groups at different time points.
Conclusion: The present study showed that adding low-dose sufentanil to bupivacaine in spinal anesthesia protocols, while potentially having minor clinical effects on certain complications, did not lead to a significant difference in the incidence of shivering and nausea. Therefore, for more precise clinical decision-making regarding drug combinations in regional anesthesia, further studies with larger sample sizes and different drug dosages are recommended.
Masoome Pourmokhtari , Shahram Shafa, Nasim Nabizadeh, Reza Sahraei, Hasan Zabetian, Mansour Deylami, Navid Kalani,
Volume 83, Issue 3 (June 2025)
Abstract
Background: Spinal anesthesia is an effective method for providing analgesia in surgery and a safe alternative to general analgesia; But despite its benefits, in many cases it is not free of side effects, including unwanted cardiovascular events such as hypotension and bradycardia. Ondansetron effectively reduces the incidence of nausea, vomiting, and bradycardia associated with spinal anesthesia Thus, the present study aimed to assess intravenous ondansetron's efficacy in preventing post-spinal hypotension among patients scheduled for lower extremity orthopedic surgery at Peymanieh Hospital in Jahrom, Iran.
Methods: This randomized double-blind clinical trial included 60 patients undergoing lower limb orthopedic surgery at Peymanieh Hospital, Jahrom, Iran, from March 2021 to February 2022. Patients were randomly allocated into two groups: the intervention group (receiving 8 mg intravenous ondansetron) and the control group (receiving distilled water). Systolic and diastolic blood pressure (SBP, DBP) and heart rate (HR) were measured before pre-spinal anesthesia, after spinal anesthesia and then every two minutes for the first ten minutes and at 15, 30, 45, 60 and 90 minutes after surgery. After spinal anesthesia, the patient was asked about pruritus every 10 minutes. Nausea and vomiting during surgery in case of incidence, recording and nausea after spinal anesthesia, the patient was asked every 10 minutes.
Results: The chi-square test indicated no significant differences between the study groups regarding age and sex distribution(P>0.05). Time before anesthesia, immediately after anesthesia, 10 minutes, 15 minutes, 30 minutes, 45 minutes, 60 minutes, 75 minutes, and 90 minutes after anesthesia, significant difference between ondansetron and placebo groups from There was no mean SBP and DBP and HR (P <0.05). No significant difference between ondansetron and placebo groups in the incidence of pruritus and nausea and vomiting at different times (p <0.05).
Conclusion: Dose of 8 mg of ondansetron in lower limb orthopedic surgery has no significant effect on hemodynamic symptoms as well as the prevention of postoperative nausea, vomiting and pruritus in these patients. Therefore, to achieve more results regarding the transient effect of this drug, it can be compared with other drugs in the class of HT3-5 receptor antagonists.
Navid Kalani , Arnoosh Ghodsian , Abdolali Sepidkar, Mehrdad Sayadinia, Reza Sahraei ,
Volume 83, Issue 4 (July 2025)
Abstract
Background: Although abdominoplasty is cosmetically effective in patients with obesity or a history of significant weight loss, it can lead to serious complications. This case report highlights the role of elevated intra-abdominal pressure and delayed diagnosis of Abdominal compartment syndrome (ACS) in the development of multiorgan failure and patient mortality.
Case Presentation: A 49-year-old female patient with a history of appendectomy and hysterectomy in the past years was admitted to the hospital for cosmetic abdominoplasty. She had a history of hypothyroidism and was taking levothyroxine regularly. Occasional tobacco use was also mentioned in the patient's history. During the operation, in addition to abdominoplasty, liposuction and flank surgery were also performed. The patient was initially placed in the supine position and then in the prone position for the last two hours. During recovery, the patient complained of shortness of breath and developed tachycardia. Despite persistently elevated BUN and creatinine, and progressive acidosis, a surgical consultation was performed with suspicion of Abdominal compartment syndrome (ACS), but this diagnosis was rejected by the surgeon. Also, despite clinical suspicion of Abdominal compartment syndrome (ACS) by the anesthesia team, in the early stages, the surgeon responsible for the patient did not have sufficient clinical suspicion of this complication and accordingly, intra-abdominal pressure measurement via bladder catheter was not performed. Since monitoring intra-abdominal pressure via bladder catheter requires a specific technique and coordination between anesthesia, surgery, and critical care teams, and since the possibility of ACS had been ruled out by the surgeon at that time, this procedure was not performed. Ultimately, the patient was transferred to the dialysis unit, but during hemodialysis, he suffered respiratory arrest and, after tracheal intubation, subsequently suffered cardiac arrest. Unfortunately, despite cardiopulmonary resuscitation efforts, the patient died.
Conclusion: Although rare, abdominal compartment syndrome should be considered a critical differential diagnosis in high-risk patients following prolonged surgeries such as abdominoplasty with extensive plication. Monitoring intra-abdominal pressure and early intervention upon symptom onset may prevent fatal outcomes.
Mohammad Sadegh Sanie Jahromi , Reza Ashrafzadeh, Ahmad Rastgarian, Navid Kalani , Mohammad Hasan Damshenas,
Volume 83, Issue 6 (September 2025)
Abstract
Background: In general anesthesia, anesthetic agents are administered by inhalation or intravenously, leading to loss of consciousness, immobility, analgesia, and amnesia. In spinal anesthesia, injection of a local anesthetic into the intrathecal space causes sensory and motor block. The aim of this study was to compare the volume of bleeding during cesarean section under general anesthesia and spinal anesthesia.
Methods: This study is a cross-sectional prospective study. The gauzes used were weighed before the operation and bloody gauzes were weighed after the operation. The difference between the weight of bloody and dry gauzes was recorded as the volume of bleeding. This volume was then added to the volume of blood in the suction chamber and the final bleeding volume was estimated.
Results: 70 patients who were candidates for cesarean section were included in the study. The mean age of the patients included in the study was 24.82±4.98 and their mean weight was 77.11±8.97. The mean hemoglobin in the spinal anesthesia group was 91.12±39. Volume of bleeding during cesarean section by spinal anesthesia was significantly less than general anesthesia (P=0.001). Also, the visual estimation of bleeding in spinal anesthesia was significantly lower than general anesthesia (P<0.001). In this study, there was no significant difference between heart rate, systolic and diastolic pressure before and during surgery, and the first- and fifth-minute Apgar scores between the two groups of general and spinal anesthesia.
Conclusion: We found in this study that the volume of bleeding during cesarean section under spinal anesthesia is less than general anesthesia. It is suggested that in future studies, other methods of estimating bleeding such as postoperative hemoglobin reduction, dilution method, atomic absorption spectroscopy and photometry be used. Also, a comparison should be made between the three groups of general, spinal and epidural anesthesia, and the volume of bleeding in each should be checked and the best anesthesia method should be selected for cesarean section.