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Biomedical subjects

M Manzo

Publications and source records attributed to M Manzo.

At least 19 recordsLinked to original sources
PubMed2001

[Usefulness of implantable loop recorder in the diagnosis of undetermined syncope. Report of a clinical case].

In this paper we describe the case of a 42-year-old man who presented with rather infrequent episodes of syncope. In view of this symptomatology, he had been repeatedly hospitalized and submitted to a complete diagnostic workup inclusive of brain computed tomography, head-up tilt test, repeated Holter monitoring, and electrophysiologic evaluation. Unfortunately, none of these tests allowed the formulation of a precise diagnosis. When, owing to further episodes of syncope, the patient came to our observation, after an inconclusive new series of noninvasive tests, we decided to implant an insertable loop recorder. This device revealed that a phase of severe bradycardia lasting 53 s, with 15 s of complete asystole, occurred during symptoms thus allowing us to diagnose the cause of syncope.

Adult↗
PubMed1988

Toxicity in uremia. 1. Correlation between PTH levels and depressed cell proliferation.

Cell proliferation is significantly depressed in uremia; to assess the influence of PTH on it, normal lymphocytes were cultured in presence of uremic patients' serum with low or high plasma PTH levels (Group A; PTH less than 2.5 ng/ml; Group B: PTH greater than 12 ng/ml), and serum of normal subjects (Group C). Cell proliferation was lowered by serum from both groups (p A vs C less than 0.004; p B vs C less than 0.001). However, the depressing effect was more evident when group B serum was employed (p A vs B less than 0.002).

Cell Division↗
PubMed1986

Plasma progesterone levels during the estrous cycle of Holstein and Brahman cows, Carora type and cross-bred heifers.

Daily plasma progesterone (P(4)) was determined during one estrous cycle of 19 cows and 18 heifers of four different breeds: Holstein (H), Brahman (B), Carora-type (C) and crossbred (CB) females. Estrus detection was made by visual observation and using a teaser bull with a chin-ball marker. The P(4) profiles showed no differences among groups. In Group 1 (H), P(4) levels ranged from 0.5 ng/ml plasma on the day of estrus (Day 0) to 5.1 ng/ml at the luteal phase peak (Day 13). In Group 2 (B), P(4) levels ranged from 0.5 ng/ml on Day 0 to 9.2 ng/ml on Day 13. In Groups 3 (C) and 4 (CB), P(4) levels ranged from 0.5 ng/ml, on Day 0, to 13.7 ng/ml on Day 12 and 8.8 ng/ml on Day 13. These last two groups were moved to the same location and then compared. It was found that P(4) concentrations were significantly higher (P < 0.025) in Group 3 between Days 7 and 14 of the estrous cycle. In all groups, P(4) levels were lower than 1 ng/ml one day before the next estrus, and levels of 0.4, 0.5, 0.4 and 0.4 ng/ml were obtained the day of estrus in Groups 1 to 4, respectively. Results indicated that the pattern of P(4) for each one of the groups was similar to those reported by other investigators.

Journal Article↗
PubMed1984

[Basal blood glucose oscillations in diabetics treated with microinfused insulin. Comparison between hormonal distributions by the square wave-form at various frequencies].

Basal glycemic oscillations in 3 type I-diabetics treated with continuous subcutaneous insulin infusion (CSII) and without endogenous insulin secretion have been studied. Insulin infusion with different frequencies of square wave-form basal insulin delivery (1 min and 10 min) have been utilized. Aim of the present investigation was to observe whether basal blood glucose oscillations could be affected by the frequency of basal square wave-form insulin delivery. Blood glucose has been measured at 3 min intervals for 90 min for each frequency. The glycemic patterns obtained did not show any periodism in relationship with the two frequencies engaged, hence the glycemic fluctuation, similar between the two experiments, cannot be considered as dependent on the different frequency of insulin pulses.

Blood Glucose↗
PubMed1983

Ultrasound diagnosis of rectus sheath hematoma.

The authors present three patients with rectus sheath hematoma who were diagnosed with ultrasound and successfully operated upon. The importance of a correct preoperative diagnosis is stressed to avoid an unnecessary laparotomy. Ultrasound helps to localize the presence of an extra-abdominal mass located between the aponeurotic sheaths of the rectus muscle. Surgery is the best treatment since it is possible to evacuate the large hematoma, and at the same time it affords an opportunity to ligate the bleeding vessels, usually the epigastrics. No advantage is seen using conservative treatment, as several weeks may be necessary before complete resolution, while the patient is suffering considerable pain and discomfort.

Abdominal Muscles↗